Method and device for controlling starting of range extender and range-extended electric vehicle
阅读说明：本技术 控制增程器启动的方法、装置及增程式电动汽车 (Method and device for controlling starting of range extender and range-extended electric vehicle ) 是由 李任霞 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种控制增程器启动的方法、装置及增程式电动汽车,涉及电动汽车技术领域,其目的在于根据增程式电动汽车当前所处环境确定是否控制增程器启动,从而保证增程式电动汽车能够适用于对尾气排放和噪音污染要求严苛的环境中。本发明的方法包括：接收车载导航系统发送的增程式电动汽车的当前位置信息；获取动力电池的当前剩余电量,并根据所述当前剩余电量和所述当前位置信息判断是否达到启动增程器的预设条件；若达到所述启动增程器的预设条件,则控制所述增程器启动。本发明适用于整车控制器VCU控制增程器启动的过程中。(The invention discloses a method and a device for controlling starting of a range extender and a range-extended electric automobile, relates to the technical field of electric automobiles, and aims to determine whether to control the starting of the range extender according to the current environment of the range-extended electric automobile, so that the range-extended electric automobile can be suitable for environments with strict requirements on exhaust emission and noise pollution. The method of the invention comprises the following steps: receiving current position information of the extended range electric vehicle sent by a vehicle-mounted navigation system; acquiring the current residual capacity of the power battery, and judging whether a preset condition for starting the range extender is met or not according to the current residual capacity and the current position information; and if the preset condition for starting the range extender is reached, controlling the range extender to start. The invention is suitable for the process of controlling the starting of the range extender by the VCU of the vehicle control unit.)
1. A method of controlling the start of a range extender, comprising:
receiving current position information of the extended range electric vehicle sent by a vehicle-mounted navigation system;
acquiring the current residual capacity of the power battery, and judging whether a preset condition for starting the range extender is met or not according to the current residual capacity and the current position information;
and if the preset condition for starting the range extender is reached, controlling the range extender to start.
2. The method according to claim 1, wherein the preset conditions for starting the range extender include a first preset condition, and the first preset condition is that: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to the first preset environment set, judging whether the current residual electric quantity is smaller than a first preset threshold value or not, wherein the first preset environment set comprises a plurality of first-class environments, each first-class environment requires a noise value smaller than a first noise threshold value, and an exhaust emission value is smaller than a first exhaust emission threshold value;
and if the current residual capacity is smaller than the first preset threshold, determining that the first preset condition is reached.
3. The method according to claim 2, wherein the plurality of first category environments included in the first preset environment set specifically includes: urban expressways, closed roads, rural roads and open parking lots.
4. The method according to claim 2, wherein the preset conditions for starting the range extender further include a second preset condition, and the second preset condition is that: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to a second preset environment set, judging whether the current residual electric quantity is smaller than a second preset threshold value or not, wherein the second preset threshold value is smaller than the first preset threshold value, the second preset environment set comprises a plurality of second-class environments, each second-class environment requires a noise value smaller than a second noise threshold value, an exhaust emission value is smaller than a second exhaust emission threshold value, the second noise threshold value is smaller than the first noise threshold value, and the second exhaust emission threshold value is smaller than the first exhaust emission threshold value;
and if the current residual capacity is smaller than the second preset threshold, determining that the second preset condition is reached.
5. The method according to claim 4, wherein the plurality of second category environments included in the second preset environment set specifically include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy land, government agencies.
6. The method of claim 4, wherein after said obtaining the current remaining capacity of the power battery, the method further comprises:
when the current position information belongs to the second preset environment set and the range extender is in a starting state, judging whether the current residual electric quantity is smaller than a second preset threshold value or not;
if the current residual electric quantity is smaller than the second preset threshold value, the starting state of the range extender is kept;
and if the current residual electric quantity is greater than or equal to the second preset threshold value, controlling the range extender to stop.
7. The method of claim 4, wherein after the determining that the second preset condition is reached, the method further comprises:
acquiring current driving power corresponding to a driving motor;
setting a first power generation power corresponding to the range extender according to the current driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the first power generation power.
8. The method of claim 4, wherein after the determining that the second preset condition is reached, the method further comprises:
searching for preset driving power corresponding to the current position information in a local storage space, wherein the preset driving power corresponding to different types of position information is stored in the local storage space;
reducing the current driving power corresponding to the driving motor according to the preset driving power, and setting a second generating power corresponding to the range extender according to the preset driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the second generated power.
9. An apparatus for controlling the start of a range extender, comprising:
the receiving unit is used for receiving the current position information of the extended range electric automobile sent by the vehicle-mounted navigation system;
the acquisition unit is used for acquiring the current residual electric quantity of the power battery;
the first judgment unit is used for judging whether a preset condition for starting the range extender is met or not according to the current residual electric quantity and the current position information;
and the first control unit is used for controlling the range extender to start when the first judging unit judges that the preset condition for starting the range extender is reached.
10. The device according to claim 9, wherein the preset conditions for starting the range extender include a first preset condition, and the first preset condition is that: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the first judgment unit includes:
a first judging module, configured to judge whether the current remaining power is smaller than a first preset threshold when the current location information belongs to the first preset environment set, where the first preset environment set includes a plurality of first class environments, each of the first class environments requires a noise value smaller than a first noise threshold, and an exhaust emission value is smaller than a first exhaust emission threshold;
the first determining module is configured to determine that the first preset condition is reached when the first determining module determines that the current remaining power is smaller than the first preset threshold.
11. The device according to claim 10, wherein the preset conditions for starting the range extender further include a second preset condition, and the second preset condition is that: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the first judgment unit further includes:
a second determining module, configured to determine whether the current remaining power is smaller than a second preset threshold when the current location information belongs to the second preset environment set, where the second preset threshold is smaller than the first preset threshold, the second preset environment set includes a plurality of second-class environments, each of the second-class environments requires a noise value smaller than a second noise threshold, an exhaust emission value is smaller than a second exhaust emission threshold, the second noise threshold is smaller than the first noise threshold, and the second exhaust emission threshold is smaller than the first exhaust emission threshold;
and the second determining module is configured to determine that the second preset condition is reached when the second judging module judges that the current remaining power is smaller than the second preset threshold.
12. The apparatus of claim 11, further comprising:
the second judging unit is used for judging whether the current residual electric quantity is smaller than a second preset threshold value or not when the current position information belongs to the second preset environment set and the range extender is in a starting state after the acquiring unit acquires the current residual electric quantity of the power battery;
the maintaining unit is used for maintaining the starting state of the range extender when the second judging unit judges that the current residual electric quantity is smaller than the second preset threshold;
and the second control unit is used for controlling the range extender to stop when the second judging unit judges that the current residual capacity is greater than or equal to the second preset threshold.
13. An extended range electric vehicle, comprising: the device of any of claims 9-12 for controlling the activation of a range extender.
14. A storage medium comprising a stored program, wherein the program, when executed, controls an apparatus in which the storage medium is located to perform the method of controlling the start of a range extender of any one of claims 1 to 8.
15. An apparatus for controlling the start of a range extender, comprising a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions when executed perform a method of controlling range extender start-up as claimed in any one of claims 1 to 8.
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a method and a device for controlling starting of a range extender and the range extender electric automobile.
Background
In recent years, with the continuous development of society, the living standard of people is continuously improved, the demand of people for automobiles is more and more, and electric automobiles powered by electric energy are produced due to the fact that the energy shortage and the environmental pollution problem caused by traditional automobiles are more and more serious. Although, pure electric vehicles has characteristics such as zero release, zero pollution, nevertheless, because the energy density of power battery can't effectively be improved at present stage to the continuation of the journey mileage that leads to pure electric vehicles can't satisfy people's demand, and this problem has been solved to a certain extent to appearance of range extending type electric vehicles: the range extender in the range-extended electric automobile can provide electric energy for the driving motor by burning fuel when the residual electric quantity of the power battery is insufficient, so that the endurance mileage of the range-extended electric automobile can be effectively improved.
Currently, the range-extended electric vehicle usually determines whether to control the range extender to start according to the remaining capacity of the power battery or the driving power of the driving motor. However, since the range extender discharges exhaust gas and generates noise in the process of supplying power to the driving motor by burning fuel, when the range-extended electric vehicle is in an environment with severe requirements for exhaust gas emission and noise pollution, determining whether to control the range extender to start only according to the remaining power of the power battery or the driving power of the driving motor may cause certain pollution to the current environment of the range-extended electric vehicle, which is contrary to the environmental protection concept of the range-extended electric vehicle.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for controlling the start of a range extender, and an extended range electric vehicle, and mainly aims to determine whether to control the start of the range extender according to the current environment of the extended range electric vehicle, so as to ensure that the extended range electric vehicle can be applied to an environment with severe requirements on exhaust emission and noise pollution.
In order to achieve the above purpose, the present invention mainly provides the following technical solutions:
in a first aspect, the present invention provides a method of controlling the start of a range extender, the method comprising:
receiving current position information of the extended range electric vehicle sent by a vehicle-mounted navigation system;
acquiring the current residual capacity of the power battery, and judging whether a preset condition for starting the range extender is met or not according to the current residual capacity and the current position information;
and if the preset condition for starting the range extender is reached, controlling the range extender to start.
Optionally, the preset condition for starting the range extender includes a first preset condition, where the first preset condition is: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to the first preset environment set, judging whether the current residual electric quantity is smaller than a first preset threshold value or not, wherein the first preset environment set comprises a plurality of first-class environments, each first-class environment requires a noise value smaller than a first noise threshold value, and an exhaust emission value is smaller than a first exhaust emission threshold value;
and if the current residual capacity is smaller than the first preset threshold, determining that the first preset condition is reached.
Optionally, the multiple first category environments included in the first preset environment set specifically include: urban expressways, closed roads, rural roads and open parking lots.
Optionally, the preset conditions for starting the range extender further include a second preset condition, where the second preset condition is: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to a second preset environment set, judging whether the current residual electric quantity is smaller than a second preset threshold value or not, wherein the second preset threshold value is smaller than the first preset threshold value, the second preset environment set comprises a plurality of second-class environments, each second-class environment requires a noise value smaller than a second noise threshold value, an exhaust emission value is smaller than a second exhaust emission threshold value, the second noise threshold value is smaller than the first noise threshold value, and the second exhaust emission threshold value is smaller than the first exhaust emission threshold value;
and if the current residual capacity is smaller than the second preset threshold, determining that the second preset condition is reached.
Optionally, the multiple second-category environments included in the second preset environment set specifically include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy land, government agencies.
Optionally, after obtaining the current remaining capacity of the power battery, the method further includes:
when the current position information belongs to the second preset environment set and the range extender is in a starting state, judging whether the current residual electric quantity is smaller than a second preset threshold value or not;
if the current residual electric quantity is smaller than the second preset threshold value, the starting state of the range extender is kept;
and if the current residual electric quantity is greater than or equal to the second preset threshold value, controlling the range extender to stop.
Optionally, after the determining that the second preset condition is reached, the method further includes:
acquiring current driving power corresponding to a driving motor;
setting a first power generation power corresponding to the range extender according to the current driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the first power generation power.
Optionally, after the determining that the second preset condition is reached, the method further includes:
searching for preset driving power corresponding to the current position information in a local storage space, wherein the preset driving power corresponding to different types of position information is stored in the local storage space;
reducing the current driving power corresponding to the driving motor according to the preset driving power, and setting a second generating power corresponding to the range extender according to the preset driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the second generated power.
In a second aspect, the present invention also provides an apparatus for controlling the start of a range extender, the apparatus comprising:
the receiving unit is used for receiving the current position information of the extended range electric automobile sent by the vehicle-mounted navigation system;
the acquisition unit is used for acquiring the current residual electric quantity of the power battery;
the first judgment unit is used for judging whether a preset condition for starting the range extender is met or not according to the current residual electric quantity and the current position information;
and the first control unit is used for controlling the range extender to start when the first judging unit judges that the preset condition for starting the range extender is reached.
Optionally, the preset condition for starting the range extender includes a first preset condition, where the first preset condition is: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the first judgment unit includes:
a first judging module, configured to judge whether the current remaining power is smaller than a first preset threshold when the current location information belongs to the first preset environment set, where the first preset environment set includes a plurality of first class environments, each of the first class environments requires a noise value smaller than a first noise threshold, and an exhaust emission value is smaller than a first exhaust emission threshold;
the first determining module is configured to determine that the first preset condition is reached when the first determining module determines that the current remaining power is smaller than the first preset threshold.
Optionally, the multiple first category environments included in the first preset environment set specifically include: urban expressways, closed roads, rural roads and open parking lots.
Optionally, the preset conditions for starting the range extender further include a second preset condition, where the second preset condition is: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the first judgment unit further includes:
a second determining module, configured to determine whether the current remaining power is smaller than a second preset threshold when the current location information belongs to the second preset environment set, where the second preset threshold is smaller than the first preset threshold, the second preset environment set includes a plurality of second-class environments, each of the second-class environments requires a noise value smaller than a second noise threshold, an exhaust emission value is smaller than a second exhaust emission threshold, the second noise threshold is smaller than the first noise threshold, and the second exhaust emission threshold is smaller than the first exhaust emission threshold;
and the second determining module is configured to determine that the second preset condition is reached when the second judging module judges that the current remaining power is smaller than the second preset threshold.
Optionally, the multiple second-category environments included in the second preset environment set specifically include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy land, government agencies.
Optionally, the apparatus further comprises:
the second judging unit is used for judging whether the current residual electric quantity is smaller than a second preset threshold value or not when the current position information belongs to the second preset environment set and the range extender is in a starting state after the acquiring unit acquires the current residual electric quantity of the power battery;
the maintaining unit is used for maintaining the starting state of the range extender when the second judging unit judges that the current residual electric quantity is smaller than the second preset threshold;
and the second control unit is used for controlling the range extender to stop when the second judging unit judges that the current residual capacity is greater than or equal to the second preset threshold.
Optionally, the first determining unit further includes:
the obtaining module is used for obtaining the current driving power corresponding to the driving motor after the second determining module determines that the second preset condition is reached;
the first setting module is used for setting first power generation power corresponding to the range extender according to the current driving power;
the first control unit is specifically used for controlling the range extender to start based on the first power generation power.
Optionally, the first determining unit further includes:
the searching module is configured to search, after the second determining module determines that the second preset condition is met, a local storage space for preset driving power corresponding to the current location information, where preset driving power corresponding to location information of different categories is stored in the local storage space;
the second setting module is used for reducing the current driving power corresponding to the driving motor according to the preset driving power and setting the second generating power corresponding to the range extender according to the preset driving power;
the first control unit is specifically configured to control the range extender to start based on the second generated power.
In a third aspect, an embodiment of the present invention provides an extended range electric vehicle, including the apparatus for controlling the start of the extended range device according to the second aspect.
In a fourth aspect, an embodiment of the present invention provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the method for controlling the start of the range extender according to the first aspect.
In a fifth aspect, an embodiment of the present invention provides an apparatus for controlling the start of a range extender, the apparatus comprising a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions when executed perform the method of controlling the start of a range extender of the first aspect.
By the technical scheme, the technical scheme provided by the invention at least has the following advantages:
compared with the prior art that whether the range extender is controlled to be started or not is determined only according to the residual electric quantity of a power battery or the driving power of a driving motor, the method and the device can enable a vehicle control unit VCU to receive the current position information of the range extender sent by a vehicle-mounted navigation system, judge whether the preset condition for starting the range extender is met or not according to the current residual electric quantity of the power battery and the current position information corresponding to the range extender electric vehicle after the current residual electric quantity of the power battery is obtained, and control the range extender to be started after the preset condition for starting the range extender is judged to be met. Because the current position information corresponding to the range-extended electric automobile is used for indicating the current environment in which the range-extended electric automobile is located, the probability of starting the range extender in the environment with strict requirements on exhaust emission and noise pollution can be effectively reduced by setting more strict preset conditions for the position information used for indicating that the range-extended electric automobile is located in the environment with strict requirements on exhaust emission and noise pollution in advance, and the range-extended electric automobile can be ensured to be suitable for the environment with strict requirements on exhaust emission and noise pollution.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart illustrating a method for controlling the start of a range extender according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating another method for controlling the start of a range extender according to an embodiment of the present invention;
FIG. 3 is a block diagram illustrating an apparatus for controlling the start of a range extender according to an embodiment of the present invention;
fig. 4 is a block diagram illustrating another apparatus for controlling the start of a range extender according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
An embodiment of the present invention provides a method for controlling a range extender to start, as shown in fig. 1, the method includes:
101. and receiving the current position information of the extended range electric automobile sent by the vehicle-mounted navigation system.
In the embodiment of the invention, the execution subject in each step is a vehicle control unit VCU operated in the extended range electric vehicle. In the running process of the extended range electric vehicle, a vehicle-mounted navigation system in the extended range electric vehicle can acquire the current position information of the extended range electric vehicle in real time and send the acquired current position information of the extended range electric vehicle to a vehicle control unit VCU in the extended range electric vehicle, at the moment, the vehicle control unit VCU can receive the current position information of the extended range electric vehicle sent by the vehicle-mounted navigation system, and the subsequent vehicle control unit VCU can determine whether to control the start of the extended range device or not based on the current position information of the extended range electric vehicle. The current location information of the extended range electric vehicle is used to indicate the current environment of the extended range electric vehicle, which may be, but is not limited to: any one of an urban expressway, a closed road, a rural road, an open parking lot, an underground parking lot, a residential area, a school, a hospital, a gas station, a military heavy land, a government agency, and the like.
102. And acquiring the current residual capacity of the power battery, and judging whether the preset condition for starting the range extender is met or not according to the current residual capacity and the current position information.
In the embodiment of the invention, after receiving the current position information of the extended range electric vehicle sent by the vehicle-mounted navigation system, the vehicle control unit VCU can acquire the current residual capacity of the power battery in the extended range electric vehicle, and judge whether the preset condition for starting the extended range device is reached according to the current residual capacity of the power battery and the current position information of the extended range electric vehicle.
Specifically, in this step, because the requirements of the different types of environments on exhaust emission and noise pollution are different, different preset conditions may be preset for the different types of environments, for example, a preset condition corresponding to position information for indicating that the extended range electric vehicle is in an environment where the requirements on exhaust emission and noise pollution are not severe is set as that the current remaining power of the power battery is less than a first preset threshold, that is, when the current position information corresponding to the extended range electric vehicle indicates that the extended range electric vehicle is currently in an environment where the requirements on exhaust emission and noise pollution are not severe, and the current remaining power of the power battery is less than the first preset threshold, the vehicle control unit VCU determines that the preset condition for starting the extended range unit is reached; setting a preset condition corresponding to position information for indicating that the extended range electric automobile is in an environment with severe requirements on exhaust emission and noise pollution as that the current residual capacity of the power battery is less than a second preset threshold value, namely, when the current position information corresponding to the extended range electric vehicle indicates that the extended range electric vehicle is currently in an environment with severe requirements on exhaust emission and noise pollution, and when the current residual capacity of the power battery is less than a second preset threshold value, the vehicle control unit VCU may determine that a preset condition for starting the range extender is reached, wherein, the second preset threshold is smaller than the first preset threshold, so that when the extended range electric vehicle is in an environment with severe requirements on exhaust emission and noise pollution, the conditions for controlling the start of the extended range device by the VCU of the vehicle controller are more severe, further, the extended range electric automobile can be ensured to be suitable for the environment with strict requirements on exhaust emission and noise pollution.
103. And if the preset condition for starting the range extender is reached, controlling the range extender to start.
In the embodiment of the invention, when the VCU of the vehicle control unit judges that the preset condition for starting the range extender is reached according to the current residual capacity of the power battery and the current position information corresponding to the range-extended electric vehicle, the range extender can be controlled to start, and the fuel is combusted by the range extender to provide electric energy for the driving motor, so that the normal running of the range-extended electric vehicle is ensured.
Compared with the prior art that whether the range extender is controlled to be started or not is determined only according to the residual electric quantity of a power battery or the driving power of a driving motor, the method provided by the embodiment of the invention can enable a vehicle control unit VCU to judge whether the preset condition for starting the range extender is met or not according to the current residual electric quantity of the power battery and the current position information corresponding to the range extender electric vehicle after receiving the current position information of the range extender electric vehicle sent by a vehicle-mounted navigation system and acquiring the current residual electric quantity of the power battery, and control the range extender to be started after judging that the preset condition for starting the range extender is met. Because the current position information corresponding to the range-extended electric automobile is used for indicating the current environment in which the range-extended electric automobile is located, the probability of starting the range extender in the environment with strict requirements on exhaust emission and noise pollution can be effectively reduced by setting more strict preset conditions for the position information used for indicating that the range-extended electric automobile is located in the environment with strict requirements on exhaust emission and noise pollution in advance, and the range-extended electric automobile can be ensured to be suitable for the environment with strict requirements on exhaust emission and noise pollution.
To be described in more detail below, another method for controlling the start of a range extender is provided in an embodiment of the present invention, specifically as shown in fig. 2, the method includes:
201. and receiving the current position information of the extended range electric automobile sent by the vehicle-mounted navigation system.
In step 201, the description of the corresponding part in fig. 1 may be referred to for receiving the current location information of the extended range electric vehicle sent by the vehicle-mounted navigation system, and the details of the embodiment of the present invention will not be repeated here.
202. And acquiring the current residual capacity of the power battery.
In step 202, the current remaining power of the power battery may be obtained by referring to the description of the corresponding part in fig. 1, and the embodiment of the present invention will not be described herein again.
203. And judging whether a preset condition for starting the range extender is met or not according to the current residual electric quantity and the current position information.
In the embodiment of the invention, after the vehicle control unit VCU receives the current position information of the range-extended electric vehicle sent by the vehicle-mounted navigation system and acquires the current remaining capacity of the power battery, whether the preset condition for starting the range extender is met can be judged according to the current remaining capacity of the power battery and the current position information corresponding to the range-extended electric vehicle. The following will describe in detail how the vehicle control unit VCU determines whether the preset condition for starting the range extender is reached according to the current remaining power of the power battery and the current position information corresponding to the range-extended electric vehicle.
(1) The preset conditions for starting the range extender comprise a first preset condition, and the first preset condition is specifically as follows: the current position information of the extended range electric vehicle belongs to a first preset environment set, and the current remaining capacity of the power battery is smaller than a first preset threshold, wherein the first preset environment set comprises a plurality of first-class environments which do not have strict requirements on exhaust emission and noise pollution, and the plurality of first-class environments can be but are not limited to include: city express way, closed road, country road, open parking lot, etc., each first category of environment requires that the noise value is less than first noise threshold, and the exhaust emission value is less than first exhaust emission threshold, and first noise threshold can be but is not limited to: 90dB, 80dB, 70dB, etc., the first exhaust emission threshold may be, but is not limited to: CO-700mg/km, CO-650mg/km, CO-600mg/km, N2O-25mg/km、N2O-20mg/km, etc.; wherein, the first preset threshold may be, but is not limited to: 30kWh, 25kWh, 20kWh, etc.
In the embodiment of the present invention, when the current location information corresponding to the extended range electric vehicle belongs to the first preset environment set (that is, the current location information corresponding to the extended range electric vehicle indicates that the extended range electric vehicle is currently in an environment that does not have strict requirements on exhaust emission and noise pollution), the vehicle control unit VCU determines whether the current remaining power of the power battery is less than a first preset threshold, and when the vehicle control unit VCU determines that the current remaining power of the power battery is less than the first preset threshold, it may be determined that the first preset condition for starting the extended range device is reached.
(2) The preset conditions for starting the range extender further comprise a second preset condition, and the second preset condition is specifically as follows: the current position information of the extended range electric vehicle belongs to a second preset environment set, and the current remaining capacity of the power battery is smaller than a second preset threshold, wherein the second preset environment set comprises a plurality of second-class environments which have severe requirements on exhaust emission and noise pollution, and the plurality of second-class environments can be but are not limited to include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy sites, government agencies, and the like, each second category of environment requires that a noise value is less than a second noise threshold, an exhaust emission value is less than a second exhaust emission threshold, the second noise threshold is less than a first noise threshold, the second exhaust emission threshold is less than a first exhaust emission threshold, the second noise threshold may not be limited to: 70dB, 65dB, 60dB, etc., and the second exhaust emission threshold may be, but is not limited to: CO-500mg/km, CO-400mg/km, CO-300mg/km, N2O-15mg/km、N2O-10mg/km, etc.; the second preset threshold is smaller than the first preset threshold, and the second preset threshold may be, but is not limited to: 15kWh, 10kWh, 5kWh, and the like.
In the embodiment of the present invention, when the current position information corresponding to the extended range electric vehicle belongs to the second preset environment set (that is, the current position information corresponding to the extended range electric vehicle indicates that the extended range electric vehicle is currently in an environment with severe requirements for exhaust emission and noise pollution), the vehicle control unit VCU determines whether the current remaining power of the power battery is less than the second preset threshold, and when the vehicle control unit VCU determines that the current remaining power of the power battery is less than the second preset threshold, it may be determined that the second preset condition for starting the extended range device is reached.
Because the second preset threshold is smaller than the first preset threshold, when the extended-range electric vehicle is in an environment with severe requirements on exhaust emission and noise pollution, the conditions for controlling the start of the extended-range device by the vehicle control unit VCU are more severe, and the extended-range electric vehicle can be further ensured to be suitable for the environment with severe requirements on exhaust emission and noise pollution.
Further, in the embodiment of the invention, after determining that the second preset condition for starting the range extender is reached, the current driving power corresponding to the driving motor can be obtained first, then the first generating power corresponding to the range extender is set according to the current driving power corresponding to the driving motor (i.e. the generating power of the range extender is set as the current driving power corresponding to the driving motor), so as to control the range extender to start based on the first generating power (namely, control the range extender to start and control the range extender to supply electric energy to the driving motor according to the first generating power) in the following, so that the range extender can normally supply electric energy to the driving motor, the power is generated by the minimum generating power, thereby reducing the tail gas emission and the noise pollution caused by the range extender, further, the extended range electric automobile can be ensured to be suitable for the environment with strict requirements on exhaust emission and noise pollution.
Further, in the embodiment of the present invention, because the requirements of different types of environments on exhaust emission and Noise pollution are different, the worker may set the power generated by the range extender in each type of environment in advance according to the standard exhaust emission value and the standard NVH (Noise, Vibration, and Harshness) value corresponding to each type of environment, set the preset driving power of the driving motor in each type of environment according to the power generated by the range extender in each type of environment (wherein the power generated by each type of environment is equal to the preset driving power), and store the mapping relationship between the position information corresponding to each type of environment and the preset driving power in the local storage space of the extended range electric vehicle. After determining that a second preset condition for starting the range extender is reached, the VCU of the vehicle control unit may search a preset driving power corresponding to the current position information of the range extender in the local storage space, then reduce the current driving power corresponding to the driving motor according to the searched preset driving power (i.e., control the driving motor to operate according to the preset driving power), and set a second power generation power corresponding to the range extender according to the searched preset driving power (i.e., set the power generation power of the range extender to the preset driving power corresponding to the current position information), so as to control the start of the range extender based on the second power generation power (i.e., control the start of the range extender and control the range extender to provide electric energy for the driving motor according to the second power generation power), so that the range extender can generate electricity with the minimum power generation power on the basis of normally providing electric energy for the driving motor, thereby reduce exhaust emission and noise pollution that the range extender caused, and then can guarantee to increase the range formula electric automobile and be applicable to in the environment that has strict requirements for exhaust emission and noise pollution.
204. And if the preset condition for starting the range extender is reached, controlling the range extender to start.
In the embodiment of the invention, when the vehicle control unit VCU determines that the preset condition (the first preset condition or the second preset condition) for starting the range extender is reached according to the current remaining capacity of the power battery and the current position information corresponding to the range-extended electric vehicle, the range extender can be controlled to start. Wherein, include engine and generator in the range extender, the theory of operation of range extender does: the engine provides kinetic energy for the generator through burning fuel, and the generator converts the kinetic energy that the engine provided into the electric energy to for driving motor provides the electric energy, consequently, the concrete process that vehicle control unit VCU control range extender started does: and respectively sending starting instructions to a first controller corresponding to the engine and a second controller corresponding to the generator, so that the first controller controls the engine to start and the second controller controls the generator to start.
Further, in the embodiment of the present invention, after receiving the map information which is sent by the vehicle-mounted navigation system and includes the current position information corresponding to the extended-range electric vehicle, and obtaining the current remaining power of the power battery, the vehicle control unit VCU may further determine whether the current position information corresponding to the extended-range electric vehicle belongs to the second preset environment set, and determine whether the range extender is in the start state, and when it is determined that the current position information corresponding to the extended-range electric vehicle belongs to the second preset environment set, and it is determined that the range extender is in the start state (that is, when the extended-range electric vehicle runs in an environment where the requirements on exhaust emission and noise pollution are not severe before, the preset condition for starting the range extender is reached, so that the vehicle control unit VCU controls the start of the range extender, and at this time, the extended-range electric vehicle runs from an environment where the requirements on exhaust emission and noise pollution are not severe to an environment where the requirements on exhaust emission and noise pollution are severe ) When the current residual electric quantity of the power battery is smaller than the second preset threshold value, the vehicle control unit VCU can keep the starting state of the range extender; when the current remaining capacity of the power battery is greater than or equal to a second preset threshold, the vehicle control unit VCU needs to control the range extender to stop, that is, the vehicle control unit VCU sends a stop instruction to the first controller corresponding to the engine and the second controller corresponding to the generator, so that the first controller controls the engine to stop and the second controller controls the generator to stop, and the range-extended electric vehicle can be further ensured to be suitable for an environment with severe requirements on exhaust emission and noise pollution.
In order to achieve the above object, according to another aspect of the present invention, an embodiment of the present invention further provides a storage medium, where the storage medium includes a stored program, where the apparatus on which the storage medium is located is controlled to execute the above method for controlling the start of the range extender when the program runs.
In order to achieve the above object, according to another aspect of the present invention, an embodiment of the present invention further provides an apparatus for controlling the start of a range extender, the apparatus including a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions execute the method for controlling the starting of the range extender when running.
Further, as an implementation of the method shown in fig. 1 and fig. 2, another embodiment of the present invention further provides a device for controlling the start of the range extender. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not repeated one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method. The device is applied to determine whether to control the range extender to start according to the current environment of the range-extended electric automobile, so as to ensure that the range-extended electric automobile can be suitable for the environment with severe requirements on exhaust emission and noise pollution, and particularly as shown in fig. 3, the device comprises:
the receiving
an obtaining
the
and the
Further, as shown in fig. 4, the preset condition for starting the range extender includes a first preset condition, where the first preset condition is: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the
a first determining
the first determining
Further, as shown in fig. 4, the plurality of first category environments included in the first preset environment set specifically include: urban expressways, closed roads, rural roads and open parking lots.
Further, as shown in fig. 4, the preset conditions for starting the range extender further include a second preset condition, where the second preset condition is: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the
a second determining
the second determining
Further, as shown in fig. 4, the plurality of second category environments included in the second preset environment set specifically include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy land, government agencies.
Further, as shown in fig. 4, the apparatus further includes:
a second determining
a holding
a
Further, as shown in fig. 4, the
the obtaining
a
a
Further, as shown in fig. 4, the
the searching
a
and a
The embodiment of the invention also provides an extended range electric automobile which comprises a device for controlling the starting of the extended range device as shown in fig. 3 or fig. 4.
Compared with the prior art that whether the range extender is controlled to be started or not is determined only according to the residual electric quantity of a power battery or the driving power of a driving motor, the method and the device for controlling the range extender to be started can enable a vehicle control unit VCU to judge whether the preset condition for starting the range extender is met or not according to the current residual electric quantity of the power battery and the current position information corresponding to the range extender electric vehicle after the current position information of the range extender electric vehicle sent by a vehicle-mounted navigation system is received and obtained, and control the range extender to be started after the preset condition for starting the range extender is judged to be met. Because the current position information corresponding to the range-extended electric automobile is used for indicating the current environment in which the range-extended electric automobile is located, the probability of starting the range extender in the environment with strict requirements on exhaust emission and noise pollution can be effectively reduced by setting more strict preset conditions for the position information used for indicating that the range-extended electric automobile is located in the environment with strict requirements on exhaust emission and noise pollution in advance, and the range-extended electric automobile can be ensured to be suitable for the environment with strict requirements on exhaust emission and noise pollution.
The device for controlling the range extender to start comprises a processor and a memory, wherein the receiving unit, the acquiring unit, the first judging unit, the first control unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and whether the range extender is controlled to be started or not is determined according to the current environment of the range-extended electric automobile by adjusting the kernel parameters, so that the range-extended electric automobile can be suitable for the environment with strict requirements on exhaust emission and noise pollution.
The embodiment of the invention provides a storage medium, which comprises a stored program, wherein when the program runs, a device where the storage medium is located is controlled to execute the method for controlling the starting of the range extender.
The storage medium may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
The embodiment of the invention also provides a device for controlling the starting of the range extender, which comprises a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions execute the method for controlling the starting of the range extender when running.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program which is stored on the memory and can run on the processor, wherein the processor executes the program and realizes the following steps:
receiving current position information of the extended range electric vehicle sent by a vehicle-mounted navigation system;
acquiring the current residual capacity of the power battery, and judging whether a preset condition for starting the range extender is met or not according to the current residual capacity and the current position information;
and if the preset condition for starting the range extender is reached, controlling the range extender to start.
Further, the preset conditions for starting the range extender include a first preset condition, where the first preset condition is: the current position information belongs to a first preset environment set, and the current residual electric quantity is smaller than a first preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to the first preset environment set, judging whether the current residual electric quantity is smaller than a first preset threshold value or not, wherein the first preset environment set comprises a plurality of first-class environments, each first-class environment requires a noise value smaller than a first noise threshold value, and an exhaust emission value is smaller than a first exhaust emission threshold value;
and if the current residual capacity is smaller than the first preset threshold, determining that the first preset condition is reached.
Further, the plurality of first category environments included in the first preset environment set specifically include: urban expressways, closed roads, rural roads and open parking lots.
Further, the preset conditions for starting the range extender further include a second preset condition, where the second preset condition is: the current position information belongs to a second preset environment set, and the current residual electric quantity is smaller than a second preset threshold value; the judging whether the preset condition for starting the range extender is met according to the current residual capacity and the current position information comprises the following steps:
when the current position information belongs to a second preset environment set, judging whether the current residual electric quantity is smaller than a second preset threshold value or not, wherein the second preset threshold value is smaller than the first preset threshold value, the second preset environment set comprises a plurality of second-class environments, each second-class environment requires a noise value smaller than a second noise threshold value, an exhaust emission value is smaller than a second exhaust emission threshold value, the second noise threshold value is smaller than the first noise threshold value, and the second exhaust emission threshold value is smaller than the first exhaust emission threshold value;
and if the current residual capacity is smaller than the second preset threshold, determining that the second preset condition is reached.
Further, the plurality of second category environments included in the second preset environment set specifically include: underground parking lots, residential areas, schools, hospitals, gas stations, military heavy land, government agencies.
Further, after obtaining the current remaining capacity of the power battery, the method further includes:
when the current position information belongs to the second preset environment set and the range extender is in a starting state, judging whether the current residual electric quantity is smaller than a second preset threshold value or not;
if the current residual electric quantity is smaller than the second preset threshold value, the starting state of the range extender is kept;
and if the current residual electric quantity is greater than or equal to the second preset threshold value, controlling the range extender to stop.
Further, after the determining that the second preset condition is reached, the method further includes:
acquiring current driving power corresponding to a driving motor;
setting a first power generation power corresponding to the range extender according to the current driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the first power generation power.
Further, after the determining that the second preset condition is reached, the method further includes:
searching for preset driving power corresponding to the current position information in a local storage space, wherein the preset driving power corresponding to different types of position information is stored in the local storage space;
reducing the current driving power corresponding to the driving motor according to the preset driving power, and setting a second generating power corresponding to the range extender according to the preset driving power;
the controlling the range extender to activate comprises:
controlling the range extender to start based on the second generated power.
The present application further provides a computer program product adapted to perform program code for initializing the following method steps when executed on a data processing device: receiving current position information of the extended range electric vehicle sent by a vehicle-mounted navigation system; acquiring the current residual capacity of the power battery, and judging whether a preset condition for starting the range extender is met or not according to the current residual capacity and the current position information; and if the preset condition for starting the range extender is reached, controlling the range extender to start.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
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