1. A method of self-starting charging of an extended range vehicle, the method comprising:

receiving a wake-up indication in a vehicle sleep state;

acquiring the environment temperature of the position where the vehicle belongs and battery information detected by a battery management system which is awakened; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip;

if the current electric quantity and the environment temperature are detected to meet preset charging conditions, controlling a range extender to charge the battery; and the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature.

2. The method of claim 1, wherein the battery information further includes a charging capability value and a discharging capability value;

controlling a range extender to charge the battery, comprising:

if the discharging capacity value is larger than a preset discharging capacity threshold value and the charging capacity value is larger than a preset charging capacity threshold value, controlling the range extender to charge the battery; the preset charging capacity threshold value is the minimum charging capacity value of the rechargeable battery;

if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value, and the cell temperature is detected to be smaller than a first preset temperature, the range extender is controlled to heat the battery, the range extender is controlled to charge the heated battery, and the first preset temperature is the preset cell temperature for maintaining the charging capacity value of the battery as the preset charging capacity threshold value.

3. The method of claim 2, wherein the preset dischargeability threshold is determined based on a starting power of an engine in the range extender.

4. The method of claim 2, wherein controlling the range extender to heat the battery comprises:

controlling an engine in the range extender to work in a preset low-efficiency state, and heating the battery by heat generated by the range extender through a pre-configured heat exchange loop; the preset inefficiency state is an operating state that produces a target energy value determined based on an engine load and an engine speed.

5. The method of claim 2, wherein controlling the range extender to charge the heated battery comprises:

if the temperature of the electric core of the heated battery is higher than the first preset temperature and lower than a second preset temperature, controlling the range extender to continue heating the heated battery and controlling the range extender to charge the heated battery, wherein the second preset temperature is the preset temperature of the electric core corresponding to the maximum chargeable capacity value of the battery.

6. The method of claim 5, wherein controlling the range extender to charge the heated battery comprises:

and if the charging capacity value of the heated battery is greater than the preset charging capacity threshold value and the battery core temperature is higher than the second preset temperature, controlling the range extender to charge the heated battery.

7. The method of claim 1, wherein receiving a wake-up indication in a vehicle sleep state comprises:

and receiving a wake-up instruction sent by the battery management system which is woken up.

8. The method of claim 1, wherein prior to receiving the wake-up indication, the method further comprises:

receiving self-starting charging function starting operation triggered by a user so as to enable the self-starting charging function to be in a self-starting charging function mode;

after controlling the range extender to charge the battery, the method further comprises:

and receiving the self-starting charging function ending operation triggered by the user so as to quit the self-starting charging function mode.

9. The method of claim 8, wherein prior to receiving a user-triggered start-up operation of the self-initiated charging function, the method further comprises:

acquiring weather forecast information of the position of the vehicle, wherein the weather forecast information comprises ambient temperature change information in a future time period;

and sending a self-starting charging function starting reminding instruction to a user terminal which establishes communication connection in advance based on the environment change information.

10. The method of claim 1, wherein controlling a range extender to charge the battery comprises:

if the current electric quantity and the environmental temperature meet the preset charging condition, sending charging prompt information to a user terminal which establishes communication connection in advance;

receiving a charging control instruction sent by the user terminal;

and controlling the range extender to charge the battery based on the charging control instruction.

11. The method of claim 1, wherein after controlling the range extender to charge the battery, the method further comprises:

and if the state of charge of the battery is larger than a preset value, controlling the range extender to refuse to charge the battery.

12. A self-starting charging device for an extended range vehicle, the device comprising:

the receiving unit is used for receiving a wake-up instruction in a vehicle sleeping state;

the acquiring unit is used for acquiring the ambient temperature of the position where the vehicle belongs and battery information detected by the awakened battery management system; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip;

the control unit is used for controlling the range extender to charge the battery if the current electric quantity and the environment temperature are detected to meet the preset charging condition; and the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature.

13. An electronic device, characterized in that the electronic device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any of claims 1-11 when executing a program stored on a memory.

14. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of the claims 1-11.

Background

With the development of society, people's environmental protection consciousness is gradually strengthened, and more people use new energy vehicle. At present, most new energy vehicles in China are electric vehicles, wherein the electric vehicles mainly provide power for the running of the vehicles by electric energy stored in power batteries, and have the advantages of zero pollution and zero emission. However, the power battery capacity of the electric vehicle is limited, and when the electric vehicle is used, it is necessary to charge the battery of the vehicle.

In a region with low ambient temperature, such as a northern region in winter, the discharge capacity of the electric vehicle is limited due to low temperature, so that the vehicle cannot be driven.

At present, a range-extended vehicle exists, in which a range extender, i.e. a power generation unit, formed by combining an engine (or "internal combustion engine") and a generator is used to generate power intermittently under system control in an optimal fuel consumption (optimal energy saving) mode, so as to provide power for vehicle running, auxiliary equipment and a storage battery. The working process is as follows: when the electric quantity of the battery is sufficient, the battery drives the generator to provide driving power required by the whole vehicle, and the engine does not participate in working at the moment. When the electric quantity of the battery is consumed to a certain degree, the engine is started, and the engine provides energy for the battery to charge the battery. When the electric quantity of the battery is sufficient, the engine stops working again, and the battery drives the generator to provide the driving of the whole vehicle.

However, although the range extender can generate power to drive the vehicle, if the battery charging capability is severely limited and the range extender cannot be started to charge the battery in a low-temperature environment, the problem that the vehicle cannot be driven is caused, and the vehicle using experience of the user in the low-temperature environment is seriously influenced.

Disclosure of Invention

An object of the embodiments of the present application is to provide a method, an apparatus, an electronic device and a medium for self-starting charging of an extended range vehicle, so as to solve the above problems in the prior art, overcome the problem that the battery charging capability is limited and the battery cannot be charged in a low temperature environment, and improve the vehicle-using experience of the user_。

In a first aspect, a self-starting charging method for an extended range vehicle is provided, which may include:

receiving a wake-up indication in a vehicle sleep state;

acquiring the environment temperature of the position where the vehicle belongs and battery information detected by a battery management system which is awakened; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip;

if the current electric quantity and the environment temperature are detected to meet preset charging conditions, controlling a range extender to charge the battery; and the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature.

In an alternative implementation, the battery information further includes a charging capability value and a discharging capability value;

controlling a range extender to charge the battery, comprising:

if the discharging capacity value is larger than a preset discharging capacity threshold value and the charging capacity value is larger than a preset charging capacity threshold value, controlling the range extender to charge the battery; the preset charging capacity threshold value is the minimum charging capacity value of the rechargeable battery;

if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value, and the cell temperature is detected to be smaller than a first preset temperature, the range extender is controlled to heat the battery, the range extender is controlled to charge the heated battery, and the first preset temperature is the preset cell temperature for maintaining the charging capacity value of the battery as the preset charging capacity threshold value.

In an alternative implementation, the preset dischargeability threshold is determined based on a starting power of an engine in the range extender.

In an optional implementation, controlling the range extender to heat the battery, and controlling the range extender to charge the heated battery includes:

controlling an engine in the range extender to work in a preset low-efficiency state, and heating the battery by heat generated by the range extender through a pre-configured heat exchange loop; the preset inefficient state is an energy inefficient operating state determined based on engine load and engine speed.

In an alternative implementation, controlling the range extender to charge the heated battery includes:

if the charging capacity value of the heated battery is larger than the preset charging capacity threshold value, the battery core temperature is higher than the first preset temperature and lower than the second preset temperature, the range extender is controlled to continue heating the heated battery, the range extender is controlled to charge the heated battery, and the second preset temperature is the preset battery core temperature corresponding to the maximum charging capacity value of the rechargeable battery.

In an alternative implementation, controlling the range extender to charge the heated battery includes:

and if the charging capacity value of the heated battery is greater than the preset charging capacity threshold value and the battery core temperature is higher than the second preset temperature, controlling the range extender to charge the heated battery.

In an alternative implementation, in the vehicle sleep state, receiving a wake-up indication includes:

and receiving a wake-up instruction sent by the battery management system which is woken up.

In an optional implementation, before receiving the wake-up indication, the method further includes:

receiving self-starting charging function starting operation triggered by a user so as to enable the self-starting charging function to be in a self-starting charging function mode;

after controlling the range extender to charge the battery, the method further comprises:

and receiving the self-starting charging function ending operation triggered by the user so as to quit the self-starting charging function mode.

In an optional implementation, before receiving a user-triggered start-up operation of the self-starting charging function, the method further includes:

acquiring weather forecast information of the position of the vehicle, wherein the weather forecast information comprises ambient temperature change information in a future time period;

and sending a self-starting charging function starting reminding instruction to a user terminal which establishes communication connection in advance based on the environment change information.

In an alternative implementation, controlling the range extender to charge the battery includes:

if the current electric quantity and the environmental temperature meet the preset charging condition, sending charging prompt information to a user terminal which establishes communication connection in advance;

receiving a charging control instruction sent by the user terminal;

and controlling the range extender to charge the battery based on the charging control instruction.

In an optional implementation, after controlling the range extender to charge the battery, the method further includes:

and if the state of charge of the battery is larger than a preset value, controlling the range extender to refuse to charge the battery.

In a second aspect, a self-starting charging device for an extended range vehicle is provided, which may include:

the receiving unit is used for receiving a wake-up instruction in a vehicle sleeping state;

the acquiring unit is used for acquiring the ambient temperature of the position where the vehicle belongs and battery information detected by the awakened battery management system; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip;

the control unit is used for controlling the range extender to charge the battery if the current electric quantity and the environment temperature are detected to meet the preset charging condition; and the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature.

In an alternative implementation, the battery information further includes a charging capability value and a discharging capability value;

the control unit is specifically configured to:

if the discharging capacity value is larger than a preset discharging capacity threshold value and the charging capacity value is larger than a preset charging capacity threshold value, controlling the range extender to charge the battery; the preset charging capacity threshold value is the minimum charging capacity value of the rechargeable battery;

if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value, and the cell temperature is detected to be smaller than a first preset temperature, the range extender is controlled to heat the battery, the range extender is controlled to charge the heated battery, and the first preset temperature is the preset cell temperature for maintaining the charging capacity value of the battery as the preset charging capacity threshold value.

In an alternative implementation, the preset dischargeability threshold is determined based on a starting power of an engine in the range extender.

In an optional implementation, the control unit is further specifically configured to:

controlling an engine in the range extender to work in a preset low-efficiency state, and heating the battery by heat generated by the range extender through a pre-configured heat exchange loop; the preset inefficient state is an energy inefficient operating state determined based on engine load and engine speed.

In an optional implementation, the control unit is further specifically configured to:

if the charging capacity value of the heated battery is larger than the preset charging capacity threshold value, the battery core temperature is higher than the first preset temperature and lower than the second preset temperature, the range extender is controlled to continue heating the heated battery, the range extender is controlled to charge the heated battery, and the second preset temperature is the preset battery core temperature corresponding to the maximum charging capacity value of the rechargeable battery.

In an optional implementation, the control unit is further specifically configured to:

and if the charging capacity value of the heated battery is greater than the preset charging capacity threshold value and the battery core temperature is higher than the second preset temperature, controlling the range extender to charge the heated battery.

In an optional implementation, the receiving unit is specifically configured to receive a wake-up indication sent by a battery management system that has been woken up.

In an optional implementation, the receiving unit is further configured to receive, before receiving the wake-up instruction, a self-starting charging function starting operation triggered by a user, so as to place itself in a self-starting charging function mode;

and after the range extender is controlled to charge the battery, receiving a self-starting charging function ending operation triggered by the user so as to quit the self-starting charging function mode.

In an alternative implementation, the apparatus further comprises a transmitting unit;

the acquiring unit is further used for acquiring weather forecast information of the position of the vehicle, wherein the weather forecast information comprises environment temperature change information in a future time period;

and the sending unit is used for sending a self-starting charging function starting reminding instruction to the user terminal which establishes communication connection in advance based on the environment change information.

In an optional implementation, the control unit is further specifically configured to:

if the current electric quantity and the environmental temperature meet the preset charging condition, sending charging prompt information to a user terminal which establishes communication connection in advance;

receiving a charging control instruction sent by the user terminal;

and controlling the range extender to charge the battery based on the charging control instruction.

In an optional implementation, the control unit is further configured to control the range extender to refuse to charge the battery if the state of charge of the battery is greater than a preset value.

In a third aspect, an electronic device is provided, which includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete communication with each other through the communication bus;

a memory for storing a computer program;

a processor adapted to perform the method steps of any of the above first aspects when executing a program stored in the memory.

In a fourth aspect, a computer-readable storage medium is provided, having stored therein a computer program which, when executed by a processor, performs the method steps of any of the above first aspects.

In the self-starting charging method of the extended range vehicle provided by the embodiment of the application, the awakening instruction is received in the vehicle dormant state; acquiring the environment temperature of the position where the vehicle belongs and battery information detected by the awakened battery management system; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip; if the current electric quantity and the environmental temperature are detected to meet the preset charging condition, controlling the range extender to charge the battery; the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the ambient temperature is not higher than the electric core temperature, so that the problems that the prior art has the problems that the battery charging capacity is limited and the battery cannot be charged in a low-temperature environment are solved, and the vehicle using experience of a user is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a system architecture diagram of a self-starting charging method for an extended range vehicle according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart illustrating a self-starting charging method of an extended range vehicle according to an embodiment of the present disclosure;

fig. 3 is a schematic flow chart illustrating a process of controlling a range extender to charge a battery based on a charging/discharging capability of the battery according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a self-starting charging device of an extended range vehicle according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without any creative effort belong to the protection scope of the present application.

For convenience of understanding, terms referred to in the embodiments of the present application are explained below:

a Battery Management System (BMS) for intelligently managing and maintaining each Battery cell, preventing overcharge and overdischarge of the Battery, extending the service life of the Battery, and monitoring the state of the Battery. The BMS may detect a charge and discharge capacity, a cell temperature, and the like of the battery.

The State of Power (SOP) of the battery describes a parameter of the maximum charge/discharge capacity of the battery, and is usually expressed by a short-time peak Power value. Since the battery SOP is a latent state quantity, online estimation needs to be achieved by modeling the SOP.

The Real-Time Clock (RTC) needs to run the program periodically after the low power consumption mode is successfully set, then enters low power consumption, and continues to run the program after a certain Time interval. The RTC clock is then needed to wake up the low power mode. By setting the periodic wake-up program, the RTC clock can be automatically woken up once every period, such as 50s, and the low power consumption is realized.

A Vehicle Control Unit (VCU) is a central control unit of a new energy Vehicle and is the core of a whole control system. The system is responsible for normal running of the automobile, braking energy feedback, energy management of an engine and a power battery of the whole automobile, network management, fault diagnosis and processing, vehicle state monitoring and the like.

The automobile dormancy means that the controller in the automobile is wholly in a low power consumption state when the automobile is not used, so that the feeding risk caused by continuous large-scale discharge of the whole automobile due to static high power consumption is avoided. When the vehicle is in a dormant state, the controller in the vehicle only keeps a simple monitoring function to wait for awakening, and some functions with large power consumption are closed.

The self-starting charging method of the extended range vehicle provided by the embodiment of the application can be applied to the VCU in the system architecture shown in fig. 1.

As shown in FIG. 1, the system may include a VCU, an on-board information collection module, a BMS, a range extender, and a thermal management system.

The vehicle-mounted information acquisition module is used for acquiring the position of the vehicle, such as the city where the vehicle is located, and the ambient temperature of the corresponding position, such as the real-time weather forecast of the city where the vehicle is located.

And the BMS is used for detecting and acquiring a charging capacity value SOP, a discharging capacity value SOP, the current electric quantity, the battery core temperature and the like of the battery.

And the range extender is used for responding to the service requirements of rotating speed, torque and the like provided by the VCU, generating power to drive the vehicle and charging the battery.

And the thermal management system is used for responding to the service requirement of the VCU and controlling the cooling loop.

And the VCU is used for receiving the awakening instruction in the dormant state of the vehicle, acquiring the ambient temperature acquired by the vehicle-mounted information acquisition module and the parameter value SOP, the current electric quantity and the electric core temperature which are detected by the awakened BMS and represent the charge and discharge capacity of the battery by the VCU in the awakened state, wherein the BMS is awakened by the pre-configured timing awakening chip. And if the current electric quantity and the environmental temperature are detected to meet the preset charging condition, controlling the range extender to charge the battery. The preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature, namely, the battery is charged at a low electric quantity and a low environment temperature.

The low environmental temperature can cause the charging capacity of the battery to be severely limited, so that the current electric quantity is smaller than a preset electric quantity threshold value, and the engine in the range extender can be controlled to work at the low environmental temperature, the heat generated by the engine is used for heating the battery through a heat exchange loop which is pre-configured in a thermal management system, and the range extender is controlled to charge the battery until the battery meets certain charging capacity.

In addition, the VCU may also be in communication connection with a user terminal, such as a mobile phone, so as to periodically or periodically send information related to the battery to the user terminal, such as a current electric quantity and a feed risk prompt;

therefore, the self-starting charging scheme of the VCU for the battery can solve the problem that the battery is limited in charging capacity and cannot be charged in a low-temperature environment in a vehicle sleeping state.

The preferred embodiments of the present application will be described below with reference to the accompanying drawings of the specification, it should be understood that the preferred embodiments described herein are merely for illustrating and explaining the present application, and are not intended to limit the present application, and that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 2 is a schematic flowchart of a self-starting charging method of an extended range vehicle according to an embodiment of the present disclosure. As shown in fig. 2, the method may include:

step S210, receiving a wake-up instruction in the vehicle sleep state.

Specifically, in the vehicle sleep state, both the VCU and the BMS in the vehicle are in a low power consumption state. Because the timing awakening chip, such as the RTC chip, which is configured in advance in the BMS, the BMS can be awakened periodically, and the awakened BMS can send awakening indication, such as awakening message, to the VCU in the low power consumption state to awaken the VCU.

Or, a timing wake-up chip or a wake-up program is pre-configured in the VCU, and a wake-up instruction for configuring the timing wake-up chip or the wake-up program is received, so as to implement self-wake-up of the VCU.

The awakened BMS can detect the battery to obtain battery information of the battery, and the battery information can include information such as a charge and discharge power value SOP, current electric quantity and electric core temperature.

And step S220, acquiring the environment temperature of the position where the vehicle belongs and the battery information detected by the awakened battery management system.

And acquiring the ambient temperature of the position of the vehicle acquired by the vehicle-mounted information acquisition module and the battery information detected by the awakened BMS.

And step S230, detecting whether the current electric quantity and the ambient temperature meet preset charging conditions, and controlling the range extender to charge the battery according to the detection result.

The preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature. The preset electric quantity threshold value refers to the preset minimum electric quantity capable of driving the vehicle to normally run.

If the current electric quantity and the environmental temperature are detected to meet the preset charging condition, the battery is indicated to have a feeding risk, and at the moment, the range extender needs to be controlled to charge the battery;

if the current electric quantity and the environmental temperature are detected not to meet the preset charging condition, the battery is indicated to have no feeding risk, and the range extender does not need to be controlled to charge the battery at the moment.

Further, in the case where the ambient temperature is not higher than the cell temperature, that is, the cell temperature is unlikely to increase with time, the battery charging and discharging capability of the electric vehicle may be limited, so that the battery cannot be charged.

In specific implementation, the charging capacity value and the discharging capacity value are detected;

and if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value and the charging capacity value is detected to be larger than the preset charging capacity threshold value, controlling the range extender to charge the battery.

The preset charging capacity threshold value is the minimum charging capacity value of the rechargeable battery;

the preset dischargeability threshold may be determined based on a starting power of the engine in the range extender, and it is understood that the preset dischargeability threshold is a minimum power capable of starting the engine in the range extender. The engine comprises low-pressure accessories such as a pump, a controller, a sensor, an actuating cylinder, a valve, an oil filter and the like, so that the starting power of the engine is comprehensively determined based on the required power of the related low-pressure accessories.

Specifically, when the discharging capacity value of the battery is larger than the starting power of the engine in the range extender, the battery can be used for starting the engine, and when the charging capacity value is larger than the minimum charging capacity value, the battery can be charged, so that the engine is started to charge the battery at the moment.

And if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value and the battery core temperature is detected to be smaller than the first preset temperature, controlling the range extender to heat the battery, and controlling the range extender to charge the heated battery.

The first preset temperature is a preset cell temperature for maintaining the charging capacity value of the battery to be a preset charging capacity threshold value, namely, the temperature for maintaining the minimum charging capacity value of the battery.

Specifically, when the discharging capacity value of the battery is greater than the starting power of the engine in the range extender, it indicates that the battery can start the engine, and since the lower the cell temperature is, the worse the charging capacity of the battery is, when the cell temperature is lower than the temperature (i.e., the first preset temperature) for maintaining the minimum charging capacity value of the battery, the battery has no charging capacity, and at this time, the cell temperature needs to be increased to reach or be higher than the first preset temperature, so that the engine in the range extender needs to be controlled to start to heat the battery, and the heated battery needs to be charged.

In one embodiment, the engine in the range extender is controlled to work in a preset low-efficiency state, and the heat generated by the range extender is used for heating the battery through a pre-configured heat exchange loop; wherein the preset inefficiency state is an operating state that generates a target efficiency value determined based on the engine load and the engine speed. Under the conventional state, under the condition that the load of the engine is not changed, the higher the rotating speed of the engine is, the lower the energy-efficient value of the engine is at the moment; under the condition that the engine speed is not changed, the lower the engine load is, the lower the engine generated energy efficiency value is, and the target energy efficiency value is the energy efficiency value determined according to the actual business requirement, which is not limited herein.

It should be noted that the heat exchange circuit may be a cooling circuit controlled by the thermal management system, or may be a newly added circuit, and the embodiment of the present application is not limited herein.

Further, there are two charging situations for the heated battery:

in case one, if the core temperature of the heated battery is higher than the first preset temperature, that is, the temperature of the minimum charging capability value of the battery is maintained, and is lower than the second preset temperature, and the second preset temperature is the core temperature corresponding to the preset maximum charging capability value that the battery can be charged, it is indicated that the charging capability value of the battery is between the minimum charging capability value and the maximum charging capability value at this time, in order to avoid that the core temperature decreases too fast at a lower ambient temperature, the range extender can be controlled to continue to heat the heated battery at this time, and the range extender is controlled to charge the heated battery, that is, to heat and charge the heated battery at the same time.

In case two, if the cell temperature of the heated battery is higher than the second preset temperature, it indicates that the charging capability value of the battery has reached the maximum charging capability, and at this time, the range extender may be only controlled to charge the heated battery.

When the temperature of the battery cell of the heated battery is higher than the second preset temperature, the charging capacity value of the battery reaches the maximum charging capacity, so that the motor in the range extender is not required to be controlled to heat the battery, and the motor in the range extender is out of the working state of the preset low-efficiency state.

In one example, as shown in FIG. 3, the range extender is controlled to charge the battery, including;

acquiring a charging capacity value and a discharging capacity value of the battery;

detecting whether the discharge capacity value of the battery is smaller than a preset discharge capacity threshold value or not;

if the discharge capacity value of the battery is larger than a preset discharge capacity threshold value, continuously keeping the vehicle in a dormant state;

if the discharging capacity value of the battery is smaller than the preset discharging capacity threshold value, detecting whether the charging capacity value of the battery is smaller than the preset charging capacity threshold value;

and if the charging capacity value of the battery is greater than the preset charging capacity threshold value, controlling the range extender to charge the battery.

If the charging capacity value of the battery is smaller than the preset charging capacity threshold value, controlling the range extender to heat the battery;

detecting whether the charging capacity value of the heated battery is larger than a preset charging capacity threshold value or not;

if the discharge capacity value of the heated battery is smaller than the preset discharge capacity threshold value, returning to the step of controlling the range extender to heat the battery;

and if the discharge capacity value of the heated battery is larger than the preset discharge capacity threshold value, controlling the range extender to charge the heated battery.

As a possible implementation manner, in a vehicle sleep state, before receiving a wake-up instruction, a self-starting charging function starting operation triggered by a user may be further received, so as to place the self-starting charging function in a self-starting charging function mode;

and after the range extender is controlled to charge the battery, the self-starting charging function finishing operation triggered by the user can be received, so that the self-starting charging function mode is quitted.

Before receiving a self-starting charging function starting operation triggered by a user, the VCU can acquire weather forecast information of a position where a vehicle belongs, wherein the weather forecast information comprises environmental temperature change information in a future time period;

and sending a self-starting charging function starting reminding instruction to a user terminal which establishes communication connection in advance based on the environment change information.

As a possible implementation manner, whether to charge the battery may be requested from the user by popping up a reminder message on whether to charge the battery at the user terminal. Specifically, in the process of controlling the range extender to charge the battery, if the current electric quantity and the ambient temperature meet the preset charging condition, charging prompt information can be sent to a user terminal which establishes communication connection in advance;

receiving a charging control instruction sent by a user terminal;

and then, based on the charging control instruction, controlling the range extender to charge the battery.

Based on any Of the above embodiments, further, after the range extender is controlled to Charge the battery, if the State Of Charge (SOC) Of the battery is greater than the preset value, the range extender is controlled to refuse to Charge the battery, that is, the charging is ended.

In the self-starting charging method of the extended range vehicle provided by the embodiment of the application, the awakening instruction is received in the vehicle dormant state; acquiring the environment temperature of the position where the vehicle belongs and battery information detected by the awakened battery management system; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip; if the current electric quantity and the environmental temperature are detected to meet the preset charging condition, controlling the range extender to charge the battery; the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the ambient temperature is not higher than the temperature of the battery core, so that the problems that the battery charging and discharging capacity is limited and the battery cannot be charged in a low-temperature environment are solved, and the vehicle using experience of a user is improved.

In accordance with the above method, an embodiment of the present invention further provides a self-starting charging device for an extended range vehicle, as shown in fig. 4, the self-starting charging device for an extended range vehicle includes:

a receiving unit 410, configured to receive a wake-up instruction in a vehicle sleep state;

an obtaining unit 420, configured to obtain an ambient temperature of a location where the vehicle belongs and battery information detected by a battery management system that has been awakened; the battery information comprises current electric quantity and cell temperature; the battery management system is awakened through a pre-configured timing awakening chip;

the control unit 430 is configured to control the range extender to charge the battery if it is detected that the current electric quantity and the ambient temperature meet a preset charging condition; and the preset charging condition is that the current electric quantity is smaller than a preset electric quantity threshold value, and the environment temperature is not higher than the battery core temperature.

In an alternative implementation, the battery information further includes a charging capability value and a discharging capability value;

the control unit 430 is specifically configured to:

if the discharging capacity value is larger than a preset discharging capacity threshold value and the charging capacity value is larger than a preset charging capacity threshold value, controlling the range extender to charge the battery; the preset charging capacity threshold value is the minimum charging capacity value of the rechargeable battery;

if the discharging capacity value is detected to be larger than the preset discharging capacity threshold value, and the cell temperature is detected to be smaller than a first preset temperature, the range extender is controlled to heat the battery, the range extender is controlled to charge the heated battery, and the first preset temperature is the preset cell temperature for maintaining the charging capacity value of the battery as the preset charging capacity threshold value.

In an alternative implementation, the preset chargeability threshold is determined based on a starting power of an engine in the range extender.

In an optional implementation, the control unit 430 is further specifically configured to:

controlling an engine in the range extender to work in a preset low-efficiency state, and heating the battery by heat generated by the range extender through a pre-configured heat exchange loop; the preset inefficient state is an energy inefficient operating state determined based on engine load and engine speed.

In an optional implementation, the control unit 430 is further specifically configured to:

if the charging capacity value of the heated battery is larger than the preset charging capacity threshold value, the battery core temperature is higher than the first preset temperature and lower than the second preset temperature, the range extender is controlled to continue heating the heated battery, the range extender is controlled to charge the heated battery, and the second preset temperature is the preset battery core temperature corresponding to the maximum charging capacity value of the rechargeable battery.

In an optional implementation, the control unit 430 is further specifically configured to:

and if the charging capacity value of the heated battery is greater than the preset charging capacity threshold value and the battery core temperature is higher than the second preset temperature, controlling the range extender to charge the heated battery.

In an optional implementation, the receiving unit 410 is specifically configured to receive a wake-up indication sent by a battery management system that has woken up.

In an optional implementation, the receiving unit 410 is further configured to receive, before receiving the wake-up instruction, a self-starting charging function starting operation triggered by a user, so as to place itself in a self-starting charging function mode;

and after the range extender is controlled to charge the battery, receiving a self-starting charging function ending operation triggered by the user so as to quit the self-starting charging function mode.

In an optional implementation, the apparatus further comprises a sending unit 440;

the obtaining unit 420 is further configured to obtain weather forecast information of a location where the vehicle belongs, where the weather forecast information includes ambient temperature change information in a future time period;

a sending unit 440, configured to send a self-starting charging function start prompting instruction to a user terminal that establishes a communication connection in advance based on the environment change information.

In an optional implementation, the control unit 430 is further specifically configured to:

if the current electric quantity and the environmental temperature meet the preset charging condition, sending charging prompt information to a user terminal which establishes communication connection in advance;

receiving a charging control instruction sent by the user terminal;

and controlling the range extender to charge the battery based on the charging control instruction.

In an optional implementation, the control unit 430 is further configured to control the range extender to refuse to charge the battery if the state of charge of the battery is greater than a preset value.

The functions of the functional units of the self-starting charging device of the extended range vehicle provided in the embodiments of the present application can be implemented by the method steps described above, and therefore, detailed working processes and beneficial effects of the units in the self-starting charging device of the extended range vehicle provided in the embodiments of the present application are not repeated herein.

The electronic device 130 according to this embodiment of the present application is described below with reference to fig. 5. As shown in fig. 5, the electronic device 130 is in the form of a general purpose computing device. The components of the electronic device 130 may include, but are not limited to: the at least one processor 131, the at least one memory 132, and a bus 133 that connects the various system components (including the memory 132 and the processor 131).

Bus 133 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a processor, or a local bus using any of a variety of bus architectures.

The memory 132 may include readable media in the form of volatile memory, such as Random Access Memory (RAM)1321 and/or cache memory 1322, and may further include Read Only Memory (ROM) 1323.

Memory 132 may also include a program/utility 1325 having a set (at least one) of program modules 1324, such program modules 1324 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.

The electronic device 130 may also communicate with one or more external devices 134 (e.g., keyboard, pointing device, etc.), and/or with any device (e.g., router, modem, etc.) that enables the electronic device 130 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 135. Also, the electronic device 130 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 136. As shown, network adapter 136 communicates with other modules for electronic device 130 over bus 133. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 130, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

In some possible embodiments, the aspects of the self-starting charging method of the extended range vehicle provided by the present application may also be implemented in the form of a program product including a computer program for causing a computer device to perform the steps of the self-starting charging method of the extended range vehicle according to various exemplary embodiments of the present application described above in this specification when the program product is run on the computer device, for example, the electronic device may perform the method steps in fig. 2.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The program product for self-starting charging of an extended range vehicle of an embodiment of the present application may employ a portable compact disc read only memory (CD-ROM) and include a computer program, and may be run on a computing device. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A readable signal medium may include a propagated data signal with a readable computer program embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer program embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer programs for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer program may execute entirely on the target object computing device, partly on the target object apparatus, as a stand-alone software package, partly on the target object computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the target object computing device over any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., over the internet using an internet service provider).

It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, according to embodiments of the application. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.

Further, while the operations of the methods of the present application are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

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 a computer-usable computer program 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.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.