阅读说明：本技术 新能源汽车充电管控系统及方法 (Charging management and control system and method for new energy automobile ) 是由 徐阳 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种新能源汽车充电管控系统及方法,其包括充电模块、电价获取模块、控制模块和电量获取模块,其中,所述充电模块,用于为新能源汽车充电；电价获取模块,与区域电力市场通信连接,用于获取区域市场的实时电价信息,并基于实时电价信息,计算电价最低时段；控制模块,基于电价最低时段和当前时间,并在当前时间到达电价最低时段时启动充电模块为新能源汽车充电；电量获取模块,用于获取新能源汽车的电量信息,并在达到充电阈值时关闭充电模块以停止充电。本申请具有降低使用者充电经济成本的效果。(The invention discloses a new energy automobile charging management and control system and a method, which comprises a charging module, an electricity price acquisition module, a control module and an electric quantity acquisition module, wherein the charging module is used for charging a new energy automobile; the electricity price acquisition module is in communication connection with the regional power market and is used for acquiring real-time electricity price information of the regional market and calculating the lowest electricity price time period based on the real-time electricity price information; the control module is used for starting the charging module to charge the new energy automobile when the current time reaches the electricity price minimum time period based on the electricity price minimum time period and the current time; and the electric quantity acquisition module is used for acquiring the electric quantity information of the new energy automobile and closing the charging module to stop charging when the electric quantity information reaches the charging threshold value. This application has the effect that reduces user's economic cost that charges.)

1. The utility model provides a new energy automobile charge management and control system which characterized in that: the system comprises a charging module, an electricity price acquisition module, a control module and an electric quantity acquisition module;

the charging module is used for charging the new energy automobile;

the electricity price acquisition module is in communication connection with the regional power market and is used for acquiring real-time electricity price information of the regional market and calculating the lowest electricity price time period based on the real-time electricity price information;

the control module is used for judging whether the automobile is in emergency use, and if not, the charging module is started to charge the new energy automobile when the current time reaches the electricity price minimum time period based on the electricity price minimum time period and the current time; the energy storage device is used for judging whether the lowest electricity price time period of charging can be filled with the electricity quantity or not, and if not, executing preset overdue processing and fluctuation processing; and for performing decentralized charging processing based on the grid load;

and the electric quantity acquisition module is used for acquiring the electric quantity information of the new energy automobile and closing the charging module when the electric quantity information reaches the charging threshold value.

2. The charging management and control system for the new energy automobile according to claim 1, characterized in that: the charging system is also provided with a timing module and a charging time calculation module;

the timing module is used for setting the charging end time;

the charging time calculation module is used for calculating the residual charging time required by full charge;

the control module directly starts the charging module to charge the new energy automobile when the remaining charging time is less than or equal to the difference between the current time and the charging end time based on the remaining charging time, the current time and the charging end time.

3. The charging management and control system for the new energy automobile according to claim 2, characterized in that: the electricity price acquisition module comprises a connection unit and a calculation unit;

the connection unit is used for connecting a regional electric power market trading website to acquire real-time electricity price information;

the calculation unit calculates the lowest electricity price time period based on the real-time electricity price information.

4. The charging management and control system for the new energy automobile according to claim 3, characterized in that: the charging system is characterized by further comprising a detection module, wherein the detection module is used for detecting the conditions of the battery, the charging module and the environment, and disconnecting the charging connection between the charging module and the new energy automobile when abnormal conditions are detected.

5. The charging management and control system for the new energy automobile according to claim 4, characterized in that: the detection module comprises a battery temperature detection unit, an environment temperature detection unit, a charging current detection unit, a charging voltage detection unit and a processing unit;

the battery temperature detection unit is used for detecting the battery temperature and outputting a battery temperature signal;

the environment temperature detection unit is used for detecting the environment temperature and outputting an environment temperature signal;

the charging current detection unit is used for detecting charging current and outputting a current signal;

the charging voltage detection unit is used for detecting a charging voltage and outputting a voltage signal;

the processing unit is respectively in communication connection with the battery temperature detection unit, the environment temperature detection unit, the charging current detection unit and the charging voltage detection unit, and is used for receiving and processing the battery temperature signal, the environment temperature signal, the current signal and the voltage signal, judging whether an abnormal condition occurs or not, and outputting a cut-off signal when the abnormal condition occurs;

the control module is in communication connection with the processing unit and responds to a cut-off signal to cut off the charging connection between the new energy automobile and the charging module.

6. The charging management and control system for the new energy automobile according to claim 4, wherein the timeout processing comprises:

acquiring charging voltage and charging current, judging whether the voltage meets a preselected optimal voltage range, and if so, judging whether the current is not lower than a current threshold; if not, judging that the voltage is not good enough and outputting an under-voltage prompt message;

when the current is not lower than the current threshold value, judging whether the charging time is insufficient according to the current time and the charging finishing time, and if so, outputting insufficient time prompt information; if not, outputting prompt information of other factors;

and when the current is judged to be lower than the current threshold value, judging that the current is poor, and outputting the current shortage prompt message.

7. The charging management and control system for the new energy automobile according to claim 6, wherein the fluctuation processing comprises:

acquiring the automobile electric quantity at the lowest electricity price ending time, judging whether the automobile electric quantity is lower than a tolerance electric quantity threshold value preset by a user, if so, calculating a difference value between the charging ending time and the lowest electricity price, calculating extra charge for overdue charging by combining the residual charging time, and outputting the extra charge;

and acquiring feedback of the user on the extra cost, and outputting a control signal to stop charging if the feedback does not agree with charging.

8. The charging management and control system for the new energy automobile according to claim 7, wherein the decentralized charging process comprises:

acquiring a result of automobile charging load calculation of a power grid based on Monte Carlo simulation, judging whether a charging time period exceeds a load threshold, if so, judging whether the current electric quantity is lower than a tolerance electric quantity threshold preset by a user, and if the current electric quantity is lower than the tolerance electric quantity threshold preset by the user, outputting scattered charging suggestion information; and if the current electric quantity is not lower than the tolerance electric quantity threshold value preset by the user, outputting the charge suspension suggestion information.

9. A charging management and control method for a new energy automobile is characterized by comprising the following steps:

s1, acquiring regional electricity price information;

s2, calculating the lowest electricity price time period of the regional electricity prices based on the regional electricity price information;

s3, charging the new energy automobile when the electricity price is the lowest;

and S4, acquiring the battery capacity information of the new energy automobile, and stopping charging the new energy automobile when the battery capacity reaches a charging threshold.

Technical Field

The application relates to the field of automobile charging, in particular to a charging management and control system and method for a new energy automobile.

Background

The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source, integrates advanced technologies in the aspects of power control and driving of the automobile, and is advanced in technical principle, new in technology and new in structure. In rapid development, the new energy automobiles on the market generally mainly adopt electric vehicles; the electric vehicle uses electric energy as a power source, and generally adopts a charging pile or a charging station to charge when supplementing electric energy.

The invention patent with the Chinese patent publication number of CN106375287B discloses a charging method of a new energy automobile, which adopts the technical scheme that an encryption chip is installed on the new energy automobile, the unique equipment address and the identification information of the encryption chip are pre-stored in a cloud server and the encryption chip, and the encryption chip is bound with the user registration information of the new energy automobile; when the new energy automobile is connected with the charging device, the encryption chip automatically communicates with the cloud server through the charging device and performs identity authentication by using the unique equipment address and the identification information of the cloud server; after the identity authentication is passed, the encryption chip obtains the battery residual capacity of the new energy automobile from the battery management system of the new energy automobile at all times and uploads the battery residual capacity to the cloud server, and the cloud server automatically controls starting or stopping charging according to the battery residual capacity.

With respect to the related art in the above, the inventor believes that the scheme does not consider power rate fluctuation in the power region market, and may perform charging in a time period when the power rate is the highest, and may invisibly increase charging cost in long-term use.

Disclosure of Invention

In order to reduce charging cost and further reduce energy consumption of a new energy automobile, the application provides a new energy automobile charging management and control system and method.

In a first aspect, the application provides a new energy automobile charging management and control system, which adopts the following technical scheme:

the utility model provides a new energy automobile charge management and control system which characterized in that: the system comprises a charging module, an electricity price acquisition module, a control module and an electric quantity acquisition module;

the charging module is used for charging the new energy automobile;

the electricity price acquisition module is in communication connection with the regional power market and is used for acquiring real-time electricity price information of the regional market and calculating the lowest electricity price time period based on the real-time electricity price information;

the control module is used for judging whether the automobile is in emergency use, and if not, the charging module is started to charge the new energy automobile when the current time reaches the electricity price minimum time period based on the electricity price minimum time period and the current time; the energy storage device is used for judging whether the lowest electricity price time period of charging can be filled with the electricity quantity or not, and if not, executing preset overdue processing and fluctuation processing; and for performing decentralized charging processing based on the grid load;

and the electric quantity acquisition module is used for acquiring the electric quantity information of the new energy automobile and closing the charging module when the electric quantity information reaches the charging threshold value.

Through adopting above-mentioned technical scheme, after new energy automobile entered into the parking charged state, not charge at the very first time, but calculate the minimum period of time of price of electricity through the price of electricity acquisition module to charge new energy automobile in the minimum period of price of electricity, can reduce the cost of charging that charges each time, in long-term use, reach the effect that reduces the user economic cost that charges.

Optionally, a timing module and a charging time calculation module are further provided,

the timing module is used for setting the charging end time;

the charging time calculation module is used for calculating the residual charging time required by full charge;

the control module directly starts the charging module to charge the new energy automobile when the remaining charging time is less than or equal to the difference between the current time and the charging end time based on the remaining charging time, the current time and the charging end time.

By adopting the technical scheme, after the new energy automobile enters the charging area, a user can input the charging ending time, namely the time for using the new energy automobile, through the timing module; the charging time calculation module calculates the residual charging time required by full charging, and when the residual charging time is equal to the difference between the current time and the charging end time, the new energy automobile is directly charged, so that the situation that the electric quantity of the new energy automobile is insufficient due to economic cost saving when a user needs to use the new energy automobile can be avoided.

Optionally, the electricity price obtaining module comprises a connection unit and a calculation unit,

the connection unit is used for connecting a regional electric power market trading website to acquire real-time electricity price information;

the calculation unit calculates the lowest electricity price time period based on the real-time electricity price information.

By adopting the technical scheme, the connection unit is connected with the trading website of the regional power market, the real-time electricity price information can be obtained, and the electricity price minimum time period is calculated by the calculating unit.

Optionally, the charging system is further provided with a detection module, wherein the detection module is used for detecting the battery condition, the charging module condition and the environment condition, and disconnecting the charging connection between the charging module and the new energy automobile when the abnormal condition is detected.

By adopting the technical scheme, the charging connection between the charging module and the new energy automobile is disconnected when the abnormal condition is detected, and the battery of the new energy automobile can be protected.

Optionally, the detection module includes a battery temperature detection unit, an ambient temperature detection unit, a charging current detection unit, a charging voltage detection unit, and a processing unit;

the battery temperature detection unit is used for detecting the battery temperature and outputting a battery temperature signal;

the environment temperature detection unit is used for detecting the environment temperature and outputting an environment temperature signal;

the charging current detection unit is used for detecting charging current and outputting a current signal;

the charging voltage detection unit is used for detecting a charging voltage and outputting a voltage signal;

the processing unit is respectively in communication connection with the battery temperature detection unit, the environment temperature detection unit, the charging current detection unit and the charging voltage detection unit, and is used for receiving and processing the battery temperature signal, the environment temperature signal, the current signal and the voltage signal, judging whether an abnormal condition occurs or not, and outputting a cut-off signal when the abnormal condition occurs;

the control module is in communication connection with the processing unit and responds to a cut-off signal to cut off the charging connection between the new energy automobile and the charging module.

By adopting the technical scheme, the battery temperature, the ambient temperature, the charging current and the charging voltage are detected, the processing unit is used for processing the battery temperature, the ambient temperature, the charging current and the charging voltage, whether abnormal conditions occur in the charging process is judged, the control module is used for cutting off the charging connection between the new energy automobile and the charging module after the abnormal conditions occur, the charging is disconnected, and the battery of the new energy automobile can be protected.

Optionally, the expiration processing includes:

acquiring charging voltage and charging current, judging whether the voltage meets a preselected optimal voltage range, and if so, judging whether the current is not lower than a current threshold; if not, judging that the voltage is not good enough and outputting an under-voltage prompt message;

when the current is not lower than the current threshold value, judging whether the charging time is insufficient according to the current time and the charging finishing time, and if so, outputting insufficient time prompt information; if not, outputting prompt information of other factors;

and when the current is judged to be lower than the current threshold value, judging that the current is poor, and outputting the current shortage prompt message.

Optionally, the fluctuation processing includes:

acquiring the automobile electric quantity at the lowest electricity price ending time, judging whether the automobile electric quantity is lower than a tolerance electric quantity threshold value preset by a user, if so, calculating a difference value between the charging ending time and the lowest electricity price, calculating extra charge for overdue charging by combining the residual charging time, and outputting the extra charge;

and acquiring feedback of the user on the extra cost, and outputting a control signal to stop charging if the feedback does not agree with charging.

Optionally, the decentralized charging process includes:

acquiring a result of automobile charging load calculation of a power grid based on Monte Carlo simulation, judging whether a charging time period exceeds a load threshold, if so, judging whether the current electric quantity is lower than a tolerance electric quantity threshold preset by a user, and if the current electric quantity is lower than the tolerance electric quantity threshold preset by the user, outputting scattered charging suggestion information; and if the current electric quantity is not lower than the tolerance electric quantity threshold value preset by the user, outputting the charge suspension suggestion information.

In a second aspect, the application provides a new energy automobile charging management and control method, which adopts the following technical scheme:

a charging management and control method for a new energy automobile comprises the following steps,

s1, acquiring regional electricity price information;

s2, calculating the lowest electricity price time period of the regional electricity prices based on the regional electricity price information;

s3, charging the new energy automobile when the electricity price is the lowest;

and S4, acquiring the battery capacity information of the new energy automobile, and stopping charging the new energy automobile when the battery capacity reaches a charging threshold.

By adopting the technical scheme, after the time period of lowest electricity price is obtained, the new energy automobile is charged in the time period of lowest electricity price, and the charging economic cost of a user can be reduced in the long-term charging process.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the new energy automobile enters the parking charging state, the new energy automobile is not charged at the first time, but the electricity price acquisition module is used for calculating the time period with the lowest electricity price and charging the new energy automobile at the time period with the lowest electricity price, so that the charging cost of each charging can be reduced, and the effect of reducing the charging economic cost of a user is achieved in long-term use;

2. after the new energy automobile enters the charging area, a user can input the charging ending time through the timing module, namely the time for using the new energy automobile; the charging time calculation module calculates the residual charging time required by full charging, and when the residual charging time is equal to the difference between the current time and the charging end time, the new energy automobile is directly charged, so that the situation that the electric quantity of the new energy automobile is insufficient due to economic cost saving when a user needs to use the new energy automobile can be avoided.

Drawings

FIG. 1 is a system block diagram of an embodiment of the invention.

Fig. 2 is a flow chart of a method of an embodiment of the present invention.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses new energy automobile charging management and control system.

Referring to fig. 1, a charging management and control system for a new energy automobile comprises a charging module, an electricity price acquisition module, a control module and an electric quantity acquisition module; the electricity price acquisition module, the control module and the electric quantity acquisition module can be integrated into one processor, and in the embodiment, an embedded industrial flat panel is used as the processor.

The charging module is used for charging the new energy automobile, and the charging module can adopt a household charging pile or a public charging pile. The charging module is connected with the processor, can receive the control signal of processor, starts to charge for new energy automobile.

The electricity price acquisition module comprises a connecting unit and a calculating unit, wherein the connecting unit is used for communicating with the regional power market to acquire real-time electricity price information of the regional power market, and the calculating unit calculates the lowest electricity price time period based on the real-time electricity price information. In the regional power market, for market managers, reasonable pricing not only enables each market subject to profit from the market, but also is a key for maintaining the health and stability of the market, and regional power prices and node power prices are two most typical power spot market pricing modes and are widely applied due to the fact that power grid blockage can be obviously relieved and power grid operation can be optimized by determining the power prices according to market supply and demand relations.

The node electricity price is the cost increased/decreased for each increased/decreased 1MW load consumed at a certain time and place in the market. The method reflects the power supply and demand relationship of a specific node, namely the high price represents the power supply convergence of the node; the low price means that the surplus of the power supply of the node is provided every day. After the processor is connected with the regional power market website, the node price of electricity can be obtained in a crawler mode by the processor, and the period with the lowest price of electricity can be obtained through the node price of electricity.

When the new energy automobile is charged, the economic cost is saved; after entering a charging mode, the new energy automobile is not charged at the first time, but is communicated with a terminal of a user firstly, whether the new energy automobile is used urgently is judged according to feedback, and if the new energy automobile is not used urgently, the electricity price obtaining module obtains the time period with the lowest electricity price.

And then the control module starts the charging module to charge the new energy automobile when judging that the current time reaches the electricity price minimum time period based on the electricity price minimum time period and the current time.

Through the charging mode, the economic cost caused by charging of the new energy automobile can be reduced to the greatest extent, the effect of saving money is achieved, the power supply and demand relationship of a power market can be matched, the charging is carried out in a surplus power time period, power resources cannot be wasted, and the concept of low-carbon travel of the new energy automobile is met.

For the communication with the terminal of the user, it can be understood that the processor of the present application is connected to a wireless communication module, such as a 4G/5G module, etc., so as to be networked and connected with the terminal (mobile phone, vehicle-mounted central control computer).

The electric quantity acquisition module is used for acquiring electric quantity information of the new energy automobile, the charging module is closed to stop charging when a charging threshold value is reached, the charging threshold value preset value is arranged in the electric quantity acquisition module, charging is cut off when the electric quantity is about to be fully charged through setting the charging threshold value, the battery can not be charged and supersaturated, and therefore the battery is protected.

The charging system is also provided with a timing module and a charging time calculation module, wherein the timing module is used for setting charging ending time; the charging time calculation module is used for calculating the residual charging time required by full charge. In order to prevent the money saving strategy from influencing the normal trip of the vehicle owner, when the vehicle owner stops to prepare for charging, the charging end time is firstly set on the timing module, and the charging time calculation module can calculate the residual charging time required by charging according to the residual electric quantity and the charging electric quantity of the battery. And the control module directly starts the charging module to charge the new energy automobile when the control module judges that the residual charging time is less than or equal to the difference between the current time and the charging end time based on the residual charging time, the current time and the charging end time. The battery can be fully charged when the vehicle owner goes out.

This application still is provided with detection module, and detection module is used for detecting the battery condition, the module condition of charging and the environmental condition, and detection module includes battery temperature detecting element, ambient temperature detecting element, charging current detecting element, charging voltage detecting element, processing unit and cutting unit. The battery temperature detection unit is used for detecting the battery temperature and outputting a battery temperature signal; the environment temperature detection unit is used for detecting the environment temperature and outputting an environment temperature signal; the charging current detection unit is used for detecting charging current and outputting a current signal; and the charging voltage detection unit is used for detecting the charging voltage and outputting a voltage signal.

The processing unit comprises a plurality of signal input ends which are respectively connected with the battery temperature detection

The unit, the environment temperature detection unit, the charging current detection unit and the signal output end of the charging voltage detection unit are connected; the battery temperature signal processing device is used for receiving and processing the battery temperature signal, the environment temperature signal, the current signal and the voltage signal to obtain the battery temperature, the environment temperature, the current and the voltage. The processing unit is internally provided with a battery temperature threshold, an environment temperature threshold, a current threshold and a voltage threshold, and when the battery temperature is greater than the battery temperature threshold, the environment temperature is greater than the environment temperature threshold, the current is greater than the current threshold or the voltage is greater than the voltage threshold, the processing unit can judge that an abnormal condition occurs, and then the processing unit outputs a cut-off signal at the moment.

One of the signal input ends of the control module is connected with the signal output end of the processing unit, and the charging connection between the charging module and the new energy automobile is cut off in response to the cut-off signal. Through the above arrangement, in the charging process, if abnormal conditions occur, the battery or the new energy automobile can be damaged, and the charging can be disconnected at the first time, so that the battery and the new energy automobile are protected.

In consideration of the fact that charging is not necessarily completed in the lowest electricity price period in the actual use process, the control module is further configured to determine whether the lowest electricity price period of charging is full of electricity, and if not, perform preset expiration processing and fluctuation processing.

With respect to the overdue treatment, it includes:

acquiring charging voltage and charging current, judging whether the voltage meets a preselected optimal voltage range (manufacturer-directed electrical parameter), and if so, judging whether the current is not lower than a current threshold; if not, judging that the voltage is not good enough and outputting an under-voltage prompt message;

when the current is not lower than the current threshold value, judging whether the charging time is insufficient according to the current time and the charging finishing time, and if so, outputting insufficient time prompt information; if not, outputting prompt information of other factors;

and when the current is judged to be lower than the current threshold value, judging that the current is poor, and outputting the current shortage prompt message.

The prompt messages are all sent to the terminal of the user through the wireless communication module, so that the user can control the charging environment and respond in time.

As for the fluctuation processing, it includes:

and acquiring the automobile electric quantity of the lowest electricity price ending time, judging whether the automobile electric quantity is lower than a tolerance electric quantity threshold (a certain acceptable electric quantity value) preset by a user, if so, calculating a difference value between the charging ending time and the lowest electricity price, calculating extra charge for overdue charging by combining the residual charging time, and outputting, namely outputting to the user terminal. And subsequently, according to the feedback of the terminal, namely, the feedback of the user to the extra charge is obtained, and if the feedback does not accord with the charging, a control signal is output to stop the charging.

At this time, when there may be charging at a non-minimum price of electricity, the user may be helped to actively reduce the cost.

For a new energy automobile (the application refers to an electric automobile), in addition to consideration of user charging, a power grid, namely a local electric power market should be considered, if the method has the problems that a certain probability charging concentration rate is too high and the power grid load is too large, the control module is also used for performing distributed charging processing based on the power grid load.

The distributed charging process includes: acquiring a result of automobile charging load calculation of a power grid based on Monte Carlo simulation, judging whether a charging time period exceeds a load threshold, if so, judging whether the current electric quantity is lower than a tolerance electric quantity threshold preset by a user, and if the current electric quantity is lower than the tolerance electric quantity threshold preset by the user, outputting scattered charging suggestion information; and if the current electric quantity is not lower than the tolerance electric quantity threshold value preset by the user, outputting the charge suspension suggestion information.

The recommendation information is also sent to the user terminal, the specific recommendation information is determined according to the preset or the result of the load operation, and if the load operation is delayed for N hours, the charging is started in a low-load time period; it should be noted that the charging period advice should be made on a low cost basis with reference to the remaining charging time.

The automobile charging load calculation based on the Monte Carlo simulation is preconfigured by a certain cloud platform, and the cloud platform is connected with a cloud deck of a local electric power market and a processor of the application so as to count and feed back a calculation result.

The embodiment of the application further discloses a charging management and control method for the new energy automobile.

Referring to fig. 2, a charging management and control method for a new energy automobile includes the following steps,

and S1, acquiring regional electricity price information.

The regional electricity price information is acquired by the electricity price acquisition module,

s2, calculating the lowest electricity price time period of the regional electricity prices based on the regional electricity price information;

s3, charging the new energy automobile when the electricity price is the lowest;

s4, acquiring battery capacity information of the new energy automobile, and when the battery capacity reaches a charging threshold value

And stopping charging the new energy automobile.

After the lowest electricity price time period is obtained, the new energy automobile is charged in the lowest electricity price time period, the charging economic cost of a user can be reduced in the long-term charging process, the charging is carried out in the electricity market electricity redundancy time period, electricity resources are not prone to being wasted, and the concept of green and low-carbon travel of the new energy automobile is met.

Also included is a method of timed charging, comprising the steps of,

101, acquiring current electric quantity, charging efficiency, current time and charging ending time; charging device

The electricity ending time is preset time;

102, calculating the residual charging time required by fully charging the battery based on the current electric quantity and the charging efficiency;

and 103, directly starting charging if the difference between the current time and the charging end time is less than or equal to the residual charging time based on the difference between the current time and the charging end time.

The charging end time is preset by a vehicle owner, and is set according to the time of the vehicle needing to be used by the vehicle owner after the vehicle owner parks the new energy vehicle to a charging position; at the moment, after the residual charging time is obtained through calculation according to the charging efficiency and the current electric quantity, the difference between the current time and the charging ending time is obtained, and then the size relation between the difference between the current time and the charging ending time and the residual charging time is compared; if the difference between the current time and the charging ending time is greater than the residual charging time, the charging method is indicated to have enough time to charge before the vehicle owner uses the vehicle, and the charging method within the economic cost of charging is executed; if the difference between the current time and the charging end time is less than or equal to the residual charging time, the situation that the vehicle cannot be fully charged before the vehicle is used by the vehicle owner is indicated, and the charging is directly started by taking the full charge as the first priority.

By the method, the electric quantity of the battery of the vehicle owner can be fully charged when the vehicle owner goes out, and the electric quantity of the new energy vehicle can not be insufficient due to economic cost saving when a user needs to use the new energy vehicle.

The method for protecting the battery comprises the steps of obtaining the temperature of the battery, the ambient temperature, the charging current and the charging voltage in real time, judging, and cutting off charging when any one parameter is abnormal. When the temperature, the ambient temperature, the charging current and the charging voltage of the battery are abnormal, the charging is cut off, and the effect of protecting the battery can be achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.