阅读说明：本技术 一种共享电动汽车及控制方法 (Shared electric automobile and control method ) 是由 不公告发明人 于 2019-10-14 设计创作，主要内容包括：本发明公开了一种共享电动汽车及控制方法,包括终端通信模块、充电连接端口、充电变换器、车载控制模块；所述终端通信模块用于与移动终端通信,用于接收移动终端的预约信息或者租车信息,将所述预约信息或者租车信息传送到所述车载控制模块,进行租车确认；所述充电连接端口包括凹槽充电口,所述可偏转的转轮包括第一动作状态、第二动作状态,所述第一动作状态和第二动作状态是相互垂直的动作；所述充电变换器包括可控开关、超级电容器、DC/DC变换器,所述可控开关在所述第二动作状态完成后才启动导通和断开控制,所述可控开关控制所述超级电容器的接入,所述超级电容器连接在DC/DC变换器的输入侧。本发明能够安全稳定的控制共享电动汽车。(The invention discloses a shared electric automobile and a control method thereof, wherein the shared electric automobile comprises a terminal communication module, a charging connection port, a charging converter and a vehicle-mounted control module; the terminal communication module is used for communicating with the mobile terminal, receiving reservation information or car renting information of the mobile terminal, transmitting the reservation information or the car renting information to the vehicle-mounted control module and confirming car renting; the charging connection port comprises a groove charging port, the deflectable rotating wheel comprises a first action state and a second action state, and the first action state and the second action state are actions which are perpendicular to each other; the charging converter comprises a controllable switch, a super capacitor and a DC/DC converter, wherein the controllable switch starts to be switched on and off after the second action state is completed, the controllable switch controls the connection of the super capacitor, and the super capacitor is connected to the input side of the DC/DC converter. The invention can safely and stably control the shared electric automobile.)

1. A shared electric automobile is characterized by comprising a terminal communication module, a charging connection port, a charging converter and a vehicle-mounted control module; the terminal communication module is used for communicating with the mobile terminal, receiving reservation information or car renting information of the mobile terminal, transmitting the reservation information or the car renting information to the vehicle-mounted control module and confirming car renting; the charging connection port comprises a groove charging port, the groove charging port comprises two symmetrical deflectable rotating wheels, the deflectable rotating wheels comprise a first action state and a second action state, and the first action state and the second action state are actions perpendicular to each other; the charging converter comprises a controllable switch, a super capacitor and a DC/DC converter, wherein the controllable switch starts to be switched on and off after the second action state is completed, the controllable switch controls the connection of the super capacitor, and the super capacitor is connected to the input side of the DC/DC converter.

2. The shared electric vehicle of claim 1, wherein the DC/DC converter comprises four MOS transistors forming a full bridge circuit, and the controllable switch is connected in series with a super capacitor and then connected in parallel at an input of the DC/DC converter.

3. The shared electric vehicle of claim 2, wherein the controllable switch is in an initial state of not receiving an external control signal, i.e. the external signal cannot control the on and off of the controllable switch; after the vehicle-mounted control module receives the completion of the second action state, starting the controllable switch to be changed into the controllable state, and recording the first time when the controllable switch is changed into the controllable state, which indicates that the shared automobile is ready to be charged at the moment; in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to a charging pile by the charging connection port, after receiving the first feedback signal, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric automobile, determining a difference value between the first time and the second time by the vehicle-mounted control module, comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the controllable switch to be switched on by the vehicle-mounted control module, connecting a super capacitor to the input end of the DC/DC converter to serve as an energy buffer, and if the difference value is larger than or equal to the time limit value, controlling the controllable switch to be in a disconnected state by the vehicle-mounted control module, and not connecting the super capacitor to the input end of the DC/DC converter, the shared vehicle is charged directly through the DC/DC converter.

4. The shared electric vehicle of claim 3, wherein the first feedback signal does not include time information.

5. The shared electric vehicle as recited in claim 3, further comprising a controllable transistor connected in series with the controllable switch, wherein the second action state is completed to generate a trigger signal, a base of the controllable transistor is connected to an output of the trigger signal, and the controllable transistor is controlled to be in a conducting state and the controllable switch is in a controllable on-off state after the second action state is completed; before the second action state is not completed, the controllable triode is in a disconnected state, and the on-off of the controllable switch cannot be controlled.

6. The shared electric vehicle as claimed in claim 3, wherein the super capacitor is capable of charging and discharging, when the difference is smaller than the time limit, the power supply is unstable, the super capacitor access circuit is controlled to perform buffer charging, and after the power supply is stable, the buffered electric energy is released to the battery of the shared electric vehicle through the DC/DC converter.

7. The shared electric vehicle according to claim 3, wherein the first operation state is a parallel movement of the jog dial grip charging terminal from the outermost side to the innermost side of the slot charging port, and the second operation state is a rotational movement of the jog dial grip charging terminal at the slot charging port along the center of the slot charging port; the outer surface of the charging terminal comprises a transverse groove and a longitudinal groove, and the longitudinal groove is formed in the way that when in the first action state, the runner is clamped and embedded into the longitudinal groove, and the charging terminal is driven to move towards the inner side of the groove charging port in parallel through clamping and rolling of the runner; and when the transverse groove is in the second action state, the rotating wheel is clamped and embedded into the transverse groove after being turned for 90 degrees, the transverse groove is clamped and rolled by the rotating wheel, the charging terminal is driven to rotate along the center in the groove charging process, and the stable connection of the charging terminal can be maintained through the two working states.

8. A control method of a shared electric vehicle as claimed in any one of claims 1 to 7, characterized by comprising the steps of:

initializing, namely setting the controllable switch to be in a state of not receiving an external control signal in an initial state, namely the external signal cannot control the on and off of the controllable switch;

detecting the action state of the charging connection port, judging whether the second action state is finished, if not, continuing to detect the action state,

if the charging is finished, starting the controllable switch to be converted into the controllable state, and recording the first time when the controllable switch is converted into the controllable state, which indicates that the shared automobile is ready to be charged;

in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to the charging pile through the charging connection port, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric vehicle after receiving the first feedback signal, and determining a difference value between the first time and the second time through the vehicle-mounted control module;

comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the conduction of the controllable switch by the vehicle-mounted control module, and connecting the super capacitor to the input end of the DC/DC converter to serve as an energy buffer;

and if the difference value is larger than or equal to the time limit value, the vehicle-mounted control module controls the controllable switch to be in an off state, and the super capacitor is not connected to the input end of the DC/DC converter and directly charges the shared automobile through the DC/DC converter.

9. The control method according to claim 8, wherein the charging state and the expected charging end time are fed back to the mobile terminal that reserves the shared automobile through the terminal communication module during the charging process.

10. The control method according to claim 8, further comprising the steps of: and feeding back the battery loss state of the shared automobile to the mobile terminal which reserves the shared automobile, and feeding back the loss possibly caused by current charging to the mobile terminal.

Technical Field

The invention relates to the technical field of shared automobiles, in particular to a shared electric automobile and a control method.

Background

The shared automobile is an important trend in future development, and especially, the electric automobile is used as a carrier of the shared automobile, so that traffic jam can be relieved, and influence on the environment can be relieved. How to control the shared electric vehicle, such as safe charging control, is a difficult problem of future charging, how to maintain the charging safety according to the control mode of the electric vehicle, improve the service life of the battery, and reduce the safety problems caused by charging, such as electric leakage, electric shock and the like, which needs to be solved urgently.

Meanwhile, when the shared electric automobile is used, the endurance problem of the existing electric automobile is a main problem which is always followed by a plurality of problems, the main reason is the loss of the battery, and in order to maintain the right of awareness of a user, the user can know the state of the battery, especially after the automobile is reserved, the user can know the endurance state, the charging state and the like of the battery, so that the shared electric automobile is an important factor for improving the user experience of the shared automobile.

Disclosure of Invention

The invention aims to solve the safety problems caused by unstable charging connection and unstable charging power when an electric automobile is shared and used in the prior art.

The invention provides a shared electric automobile which comprises a terminal communication module, a charging connection port, a charging converter and a vehicle-mounted control module, wherein the charging connection port is connected with the terminal communication module; the terminal communication module is used for communicating with the mobile terminal, receiving reservation information or car renting information of the mobile terminal, transmitting the reservation information or the car renting information to the vehicle-mounted control module and confirming car renting; the charging connection port comprises a groove charging port, the groove charging port comprises two symmetrical deflectable rotating wheels, the deflectable rotating wheels comprise a first action state and a second action state, and the first action state and the second action state are actions perpendicular to each other; the charging converter comprises a controllable switch, a super capacitor and a DC/DC converter, wherein the controllable switch starts to be switched on and off after the second action state is completed, the controllable switch controls the connection of the super capacitor, and the super capacitor is connected to the input side of the DC/DC converter.

In the shared electric automobile, the DC/DC converter comprises a full-bridge circuit formed by four MOS tubes, and the controllable switch is connected with the super capacitor in series and then connected with the input end of the DC/DC converter in parallel.

In the shared electric automobile, the controllable switch is in a state of not receiving an external control signal in an initial state, namely the external signal cannot control the on and off of the controllable switch; after the vehicle-mounted control module receives the completion of the second action state, starting the controllable switch to be changed into the controllable state, and recording the first time when the controllable switch is changed into the controllable state, which indicates that the shared automobile is ready to be charged at the moment; in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to a charging pile by the charging connection port, after receiving the first feedback signal, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric automobile, determining a difference value between the first time and the second time by the vehicle-mounted control module, comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the controllable switch to be switched on by the vehicle-mounted control module, connecting a super capacitor to the input end of the DC/DC converter to serve as an energy buffer, and if the difference value is larger than or equal to the time limit value, controlling the controllable switch to be in a disconnected state by the vehicle-mounted control module, and not connecting the super capacitor to the input end of the DC/DC converter, the shared vehicle is charged directly through the DC/DC converter.

The shared electric vehicle, the first feedback signal does not include time information.

The shared electric automobile further comprises a controllable triode connected with the controllable switch in series, after the second action state is finished, a trigger signal is generated, a base electrode of the controllable triode is connected with an output end of the trigger signal, after the second action state is finished, the controllable triode is controlled to be in a conducting state, and the controllable switch is in a controllable on-off state; before the second action state is not completed, the controllable triode is in a disconnected state, and the on-off of the controllable switch cannot be controlled.

The super capacitor of the shared electric automobile can be charged and discharged, when the difference value is smaller than the time limit value, the power supply is unstable, the super capacitor access circuit is controlled to perform buffer charging, and after the power supply is stable, the electric energy after the buffer charging is released to a battery of the shared electric automobile through the DC/DC converter.

In the shared electric automobile, the first action state is that the runner clamping charging terminal moves from the outermost side to the innermost side of the groove charging port in parallel, and the second working state is that the runner clamping charging terminal moves in the groove charging port in a rotating mode along the center of the groove charging port; the outer surface of the charging terminal comprises a transverse groove and a longitudinal groove, and the longitudinal groove is formed in the way that when in the first action state, the runner is clamped and embedded into the longitudinal groove, and the charging terminal is driven to move towards the inner side of the groove charging port in parallel through clamping and rolling of the runner; and when the transverse groove is in the second action state, the rotating wheel is clamped and embedded into the transverse groove after being turned for 90 degrees, the transverse groove is clamped and rolled by the rotating wheel, the charging terminal is driven to rotate along the center in the groove charging process, and the stable connection of the charging terminal can be maintained through the two working states.

A control method for sharing an electric vehicle comprises the following steps:

initializing, namely setting the controllable switch to be in a state of not receiving an external control signal in an initial state, namely the external signal cannot control the on and off of the controllable switch;

detecting the action state of the charging connection port, judging whether the second action state is finished, if not, continuing to detect the action state,

if the charging is finished, starting the controllable switch to be converted into the controllable state, and recording the first time when the controllable switch is converted into the controllable state, which indicates that the shared automobile is ready to be charged;

in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to the charging pile through the charging connection port, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric vehicle after receiving the first feedback signal, and determining a difference value between the first time and the second time through the vehicle-mounted control module;

comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the conduction of the controllable switch by the vehicle-mounted control module, and connecting the super capacitor to the input end of the DC/DC converter to serve as an energy buffer;

and if the difference value is larger than or equal to the time limit value, the vehicle-mounted control module controls the controllable switch to be in an off state, and the super capacitor is not connected to the input end of the DC/DC converter and directly charges the shared automobile through the DC/DC converter.

In the control method, in the charging process, the charging state and the predicted charging ending time are fed back to the mobile terminal reserving the shared automobile through the terminal communication module.

The control method further comprises the following steps: and feeding back the battery loss state of the shared automobile to the mobile terminal which reserves the shared automobile, and feeding back the loss possibly caused by current charging to the mobile terminal.

The beneficial technical effects obtained by the invention are as follows: the invention improves the charging connection mode of the shared automobile, takes the fluctuation time range of an external power source as another reference value according to the connection mode as a reference signal, determines the access of a super capacitor to relieve the fluctuation, and does not need to carry out delay charging when the external power source fluctuates. The main improvement point of the invention is that a buffer super capacitor is arranged, and the access of the capacitor, the connection state of a charging port and the time difference of the connection of an external power supply and the charging port are set; the other main improvement point of the invention is that the control power fluctuation is arranged at the automobile side, the external control is not considered, and the battery loss caused by the power fluctuation can be reduced according to the control of the control power device, and the safety and the stability can be realized only by judging the time of the external power access and the time of the regulation.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a schematic view of a shared electric vehicle of the present invention.

FIG. 2 is a schematic diagram of the overall control of the shared electric vehicle according to the present invention.

FIG. 3 is a schematic diagram of a control method of a shared electric vehicle according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments thereof; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.

As shown in fig. 1, the present invention provides a shared electric vehicle, which includes a terminal communication module, a charging connection port, a charging converter, and a vehicle-mounted control module; the terminal communication module is used for communicating with the mobile terminal, receiving reservation information or car renting information of the mobile terminal, transmitting the reservation information or the car renting information to the vehicle-mounted control module and confirming car renting; the charging connection port comprises a groove charging port, the groove charging port comprises two symmetrical deflectable rotating wheels, the deflectable rotating wheels comprise a first action state and a second action state, and the first action state and the second action state are actions perpendicular to each other; the charging converter comprises a controllable switch, a super capacitor and a DC/DC converter, wherein the controllable switch starts to be switched on and off after the second action state is completed, the controllable switch controls the connection of the super capacitor, and the super capacitor is connected to the input side of the DC/DC converter.

FIG. 2 is a schematic diagram of the overall control of the shared electric vehicle according to the present invention. The sharing electric automobile passes through mobile terminal control, realizes stably charging through filling electric pile.

In the shared electric automobile, the DC/DC converter comprises a full-bridge circuit formed by four MOS tubes, and the controllable switch is connected with the super capacitor in series and then connected with the input end of the DC/DC converter in parallel.

In the shared electric automobile, the controllable switch is in a state of not receiving an external control signal in an initial state, namely the external signal cannot control the on and off of the controllable switch; after the vehicle-mounted control module receives the completion of the second action state, starting the controllable switch to be changed into the controllable state, and recording the first time when the controllable switch is changed into the controllable state, which indicates that the shared automobile is ready to be charged at the moment; in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to a charging pile by the charging connection port, after receiving the first feedback signal, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric automobile, determining a difference value between the first time and the second time by the vehicle-mounted control module, comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the controllable switch to be switched on by the vehicle-mounted control module, connecting a super capacitor to the input end of the DC/DC converter to serve as an energy buffer, and if the difference value is larger than or equal to the time limit value, controlling the controllable switch to be in a disconnected state by the vehicle-mounted control module, and not connecting the super capacitor to the input end of the DC/DC converter, the shared vehicle is charged directly through the DC/DC converter.

The shared electric vehicle, the first feedback signal does not include time information.

Preferably, the first feedback signal only informs the charging pile of the stable connection state of the connection port, and then the charging pile transmits the second time of the last power adjustment of the charging pile to the shared electric vehicle, so that the initiative for performing charging stability control can be set in the shared electric vehicle, and the shared electric vehicle can maintain the stability of the charging state by depending on the control of the shared electric vehicle regardless of whether a device for performing stability control exists outside, and reduce the loss of the fluctuating power or the excess power to the battery.

Preferably, the four MOS transistors of the DC/DC converter may be controlled by PWM to perform DC conversion, the DC/DC converter is controlled after receiving that the vehicle-mounted control module receives the second action state, and a timing of receiving a signal is the same as that of the controllable switch, so as to determine that the charging interface is completely connected.

The shared electric automobile further comprises a controllable triode connected with the controllable switch in series, after the second action state is finished, a trigger signal is generated, a base electrode of the controllable triode is connected with an output end of the trigger signal, after the second action state is finished, the controllable triode is controlled to be in a conducting state, and the controllable switch is in a controllable on-off state; before the second action state is not completed, the controllable triode is in a disconnected state, and the on-off of the controllable switch cannot be controlled.

The super capacitor of the shared electric automobile can be charged and discharged, when the difference value is smaller than the time limit value, the power supply is unstable, the super capacitor access circuit is controlled to perform buffer charging, and after the power supply is stable, the electric energy after the buffer charging is released to a battery of the shared electric automobile through the DC/DC converter.

The number of times of charging the capacitor substantially causes loss to the capacitor, and the super capacitor is controlled to be accessed according to external power fluctuation, so that the use times of the super capacitor are effectively reduced.

And in the discharging process of the super capacitor, PWM control is performed through the DC/DC converter, so that the requirement of stable power output is met.

In the shared electric automobile, the first action state is that the runner clamping charging terminal moves from the outermost side to the innermost side of the groove charging port in parallel, and the second working state is that the runner clamping charging terminal moves in the groove charging port in a rotating mode along the center of the groove charging port; the rotating wheel comprises three saw-toothed bulges which are matched with the charging terminal.

The outer surface of the charging terminal comprises a transverse groove and a longitudinal groove, and the longitudinal groove is formed in the way that when in the first action state, the runner is clamped and embedded into the longitudinal groove, and the charging terminal is driven to move towards the inner side of the groove charging port in parallel through clamping and rolling of the runner; and when the transverse groove is in the second action state, the rotating wheel is clamped and embedded into the transverse groove after being turned for 90 degrees, the transverse groove is clamped and rolled by the rotating wheel, the charging terminal is driven to rotate along the center in the groove charging process, and the stable connection of the charging terminal can be maintained through the two working states.

As shown in fig. 3, the control method for sharing an electric vehicle according to the present invention includes the following steps:

initializing, namely setting the controllable switch to be in a state of not receiving an external control signal in an initial state, namely the external signal cannot control the on and off of the controllable switch;

detecting the action state of the charging connection port, judging whether the second action state is finished, if not, continuing to detect the action state,

if the charging is finished, starting the controllable switch to be converted into the controllable state, and recording the first time when the controllable switch is converted into the controllable state, which indicates that the shared automobile is ready to be charged;

in a controllable state, transmitting a first feedback signal to the charging connection port, transmitting the first feedback signal to the charging pile through the charging connection port, sending a second time of power adjustment of the charging pile to a vehicle-mounted control module of the shared electric vehicle after receiving the first feedback signal, and determining a difference value between the first time and the second time through the vehicle-mounted control module;

comparing and judging the difference value with a time limit value, if the difference value is smaller than the time limit value, controlling the conduction of the controllable switch by the vehicle-mounted control module, and connecting the super capacitor to the input end of the DC/DC converter to serve as an energy buffer;

and if the difference value is larger than or equal to the time limit value, the vehicle-mounted control module controls the controllable switch to be in an off state, and the super capacitor is not connected to the input end of the DC/DC converter and directly charges the shared automobile through the DC/DC converter.

In the control method, in the charging process, the charging state and the predicted charging ending time are fed back to the mobile terminal reserving the shared automobile through the terminal communication module.

The control method further comprises the following steps: and feeding back the battery loss state of the shared automobile to the mobile terminal which reserves the shared automobile, and feeding back the loss possibly caused by current charging to the mobile terminal.

The beneficial technical effects obtained by the invention are as follows: the invention improves the charging connection mode of the shared automobile, takes the fluctuation time range of an external power source as another reference value according to the connection mode as a reference signal, determines the access of a super capacitor to relieve the fluctuation, and does not need to carry out delay charging when the external power source fluctuates. The main improvement point of the invention is that a buffer super capacitor is arranged, and the access of the capacitor, the connection state of a charging port and the time difference of the connection of an external power supply and the charging port are set; the other main improvement point of the invention is that the control power fluctuation is arranged at the automobile side, the external control is not considered, and the battery loss caused by the power fluctuation can be reduced according to the control of the control power device, and the safety and the stability can be realized only by judging the time of the external power access and the time of the regulation.

Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. It is therefore intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that it is the following claims, including all equivalents, that are intended to define the spirit and scope of this invention. The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.