CN115939594A

CN115939594A - Vehicle reservation heating management method, electronic device, system and storage medium

Info

Publication number: CN115939594A
Application number: CN202211516294.4A
Authority: CN
Inventors: 杨鹏飞; 黄照昆; 陈尚云; 赵利杰
Original assignee: Dongfeng Nissan Passenger Vehicle Co
Current assignee: Dongfeng Nissan Passenger Vehicle Co
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-07

Abstract

The invention discloses a vehicle reservation heating management method, electronic equipment, a system and a storage medium. The method comprises the following steps: acquiring a first ambient temperature of a position where a vehicle is located; if the first environment temperature is lower than a preset temperature threshold value, reminding the appointed vehicle; and controlling the vehicle to perform battery heating in response to the vehicle use reservation request. According to the invention, the environmental temperature of the vehicle is judged, the user is timely reminded of reserving the vehicle for using when the environmental temperature is low, and then the vehicle is timely controlled to perform battery heating according to the reserving of the vehicle for using of the user, so that the battery can be heated in advance, the user can drive the vehicle at any time without waiting, and meanwhile, the battery has a proper temperature, good vehicle dynamic property, strong energy recovery capability and good economical efficiency, the lithium precipitation risk of the battery in a low-temperature environment is reduced, and the safety and the service life of the battery are improved.

Description

Vehicle reservation heating management method, electronic device, system and storage medium

Technical Field

The invention relates to the technical field of vehicle correlation, in particular to a vehicle appointment heating management method, electronic equipment, a vehicle appointment heating management system and a storage medium.

Background

In recent years, hybrid vehicles have been developed well because of their advantages such as good fuel economy and no anxiety in cruising, but they have their drawbacks (particularly, lithium ion power battery hybrid vehicles). The engine is usually provided with starting force by a power battery, and the following problems exist under the condition of extremely low temperature:

1. the battery can not be discharged or the discharge power is low, so that the vehicle can not be started or is difficult to start, and the user experience is influenced;

2. after the vehicle is started, the battery temperature is low, the charging and discharging capacity is small, the output power of the battery is low, the energy recovery efficiency is low, and the dynamic property and the economical efficiency of the vehicle are influenced;

3. the battery works at low temperature, and the phenomenon of lithium precipitation is easy to generate, so that the safety and the service life of the battery are influenced.

For this reason, the prior art proposes battery heating schemes:

1. before the vehicle is started, the vehicle is heated to enable the power battery to reach the preset temperature;

2. heating is controlled manually by a user at a remote location.

However, the existing battery heating scheme has the following disadvantages:

1. in an extremely low temperature environment, a vehicle needs to be heated when being used, a user needs to wait, user experience is influenced, and the safe use of a battery is influenced under the condition of insufficient heating;

2. the user manually controls heating, the heating time is not easy to control, the heating power required by different environmental temperatures and battery temperatures is different, only larger heating power can be used and longer heating time can be reserved, the burden of the user is increased, the electric quantity of the battery is wasted, and the optimal state cannot be reached when the user uses the vehicle;

3. the user easily forgets to warm up the car in advance.

Disclosure of Invention

Accordingly, it is necessary to provide a vehicle reservation heating management method, an electronic device, a system and a storage medium for solving the technical problem that the prior art cannot prompt a user to warm up a vehicle in advance.

The invention provides a vehicle appointment heating management method, which comprises the following steps:

acquiring a first ambient temperature of a position where a vehicle is located;

if the first environment temperature is lower than a preset temperature threshold value, reminding the reservation of the vehicle;

and controlling the vehicle to perform battery heating in response to the vehicle reservation request.

Further, the first ambient temperature includes: the current ambient temperature of the position of the vehicle, the day minimum temperature of the area where the vehicle is located, and/or the day minimum temperature of the position of the vehicle, if the first ambient temperature is lower than a preset temperature threshold, then the reservation vehicle is reminded, and the method specifically comprises the following steps:

and if the current environment temperature of the position of the vehicle, the lowest temperature of the area of the position of the vehicle in the same day or the lowest temperature of the position of the vehicle in the next day is lower than a preset temperature threshold value, reminding the reserved vehicle.

Further, the controlling the vehicle to perform battery heating in response to the vehicle reservation request specifically includes:

responding to the vehicle using reservation request, and determining the vehicle using time according to the reservation condition of the vehicle using reservation request;

acquiring battery information from a vehicle, determining a battery heating time according to the vehicle using time and the battery information, and controlling the vehicle to heat at the battery heating time.

Further, the vehicle using reservation condition is an immediate reservation vehicle, a specific time reservation vehicle or a periodic reservation vehicle, and the determining the vehicle using time according to the reservation condition of the vehicle using reservation request in response to the vehicle using reservation request specifically comprises:

responding to the vehicle using reservation request, and judging reservation conditions of the vehicle using reservation request;

if the reservation condition of the vehicle using reservation request is to immediately reserve the vehicle using, determining the vehicle using time to be the current time;

if the reservation condition of the vehicle using reservation request is that the vehicle using is reserved at a specific time, determining the vehicle using time as the time set by the vehicle using reservation request;

and if the reservation condition of the vehicle using reservation request is that the vehicle is reserved at periodic time, periodically determining the time set by the vehicle using time as the vehicle using reservation request according to the period indicated by the vehicle using reservation request.

Still further, if the reservation condition of the vehicle using reservation request is that the vehicle is reserved for a periodic time, the periodically determining the vehicle using time as the time set by the vehicle using reservation request according to the period indicated by the vehicle using reservation request specifically includes:

if the reservation condition of the vehicle using reservation request is that the vehicle using is reserved at periodic time, periodically determining the time set by the vehicle using time as the vehicle using reservation request according to the period indicated by the vehicle using reservation request;

monitoring whether the vehicle is used within a preset time length after vehicle preheating completion information sent by the vehicle is received, and if the vehicle is not monitored to be used within the preset time length, recording the times of non-use of the vehicle;

and if the number of times of the unused vehicle exceeds a preset number threshold, stopping the periodical determination of the time for using the vehicle as the time set by the vehicle using reservation request.

Furthermore, the obtaining battery information from the vehicle, determining a battery heating time according to the vehicle using time and the battery information, and controlling the vehicle to heat at the battery heating time specifically includes:

acquiring battery information and a second ambient temperature of a position where the vehicle is located from the vehicle;

calculating a target temperature rise value of the battery according to the battery information and the second ambient temperature;

and determining the battery heating time according to the battery target temperature rise value, the vehicle heating power, the current time and the vehicle using time, and controlling the vehicle to heat at the battery heating time.

Still further, the battery information includes the lowest battery temperature and the battery target temperature value at the present moment, the second ambient temperature includes the ambient temperature of the vehicle position at the present moment, the present moment to the lowest ambient temperature forecast value temperature of the vehicle environment between the vehicle using moments, the battery target temperature rise value is calculated according to the battery information and the second ambient temperature, and the method specifically includes:

selecting the lowest value of the lowest battery temperature at the current moment, the environment temperature of the position of the vehicle at the current moment and the environment temperature forecast value lowest temperature of the environment of the vehicle between the current moment and the vehicle using moment as a temperature lowest value;

and calculating a battery target temperature rise value as the battery target temperature value minus the temperature minimum value.

Still further, the heating power of the vehicle is constant power, the battery heating time is determined according to the target battery temperature rise value, the vehicle heating power, the current time and the vehicle using time, and the vehicle is controlled to be heated at the battery heating time, specifically including:

taking the heating power as the heating power to be calculated, and calculating a first time length for heating the battery to the target temperature rise value of the battery by adopting the calculated power;

calculating the time length from the current time to the vehicle using time as a second time length;

if the difference value obtained by subtracting the second time length from the first time length is greater than or equal to the opposite number of a preset threshold, determining that the battery heating time is the current time, and the preset threshold is a positive number; otherwise, determining that the battery heating time is the time of subtracting the first duration from the vehicle using time;

and controlling the vehicle to adopt the constant-power heating at the battery heating moment.

Still further, the heating power of the vehicle includes a plurality of gears, and the method determines a battery heating time according to the target battery temperature rise value, the vehicle heating power, the current time, and the vehicle using time, and controls the vehicle to heat at the battery heating time, specifically including:

and starting to perform loop calculation by taking the heating power of the lowest gear as the power of the current gear, and in each loop:

taking the current gear power as heating power to be calculated, and calculating the time length of heating the battery to the target temperature rise value of the battery by adopting the heating power to be calculated as first time length;

if the absolute value of the difference value between the first time length and the second time length is smaller than or equal to a preset threshold, determining that the battery heating time is the current time, and ending the circulation, wherein the preset threshold is a positive number; otherwise

If the difference value between the first time length and the second time length is smaller than the opposite number of the preset threshold value, determining that the battery heating time is the time when the vehicle is used minus the first time length, and ending the cycle, otherwise;

if the heating power of the next gear is available, selecting the heating power of the next gear as the current gear power, entering the next cycle, and if not, determining the battery heating time as the current time, and ending the cycle;

and controlling the vehicle to adopt the current gear power heating when the circulation is finished at the battery heating time.

Still further, the calculating, with the heating power to be calculated as a first time length, a time length for heating the battery to the target battery temperature rise value includes:

calculating the time length for heating the battery to the target battery temperature rise value by adopting the heating power to be calculated as a first time length:

wherein, Δ t ₁ Is the first duration, C _p Is the specific heat capacity of the cell, M is the mass of the cell, T _bat-goal Is a target temperature value, T, of the battery _min Is the lowest value of temperature, T _{amb_forecast_min} For the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment of using the car at the present moment, P does wait to calculate heating power, A is battery and external heat transfer area, and h is the convective heat transfer coefficient of battery and external heat transfer, the temperature minimum value is the minimum battery temperature of the present moment, the ambient temperature of the vehicle place position at the present moment, the present moment arrives the minimum value among the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment of using the car.

The present invention provides an electronic device including:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein, the first and the second end of the pipe are connected with each other,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the vehicle predictive heating management method as described above.

The present invention provides a storage medium storing computer instructions for performing all the steps of the vehicle predictive heating management method as described above when executed by a computer.

According to the invention, the environmental temperature of the vehicle is judged, the user is timely reminded of reserving the vehicle for using when the environmental temperature is low, and then the vehicle is timely controlled to perform battery heating according to the reserving of the vehicle for using of the user, so that the battery can be heated in advance, the user can drive the vehicle at any time without waiting, and meanwhile, the battery has a proper temperature, good vehicle dynamic property, strong energy recovery capability and good economical efficiency, the lithium precipitation risk of the battery in a low-temperature environment is reduced, and the safety and the service life of the battery are improved.

Drawings

FIG. 1 is a flowchart illustrating a method for managing a vehicle with scheduled heating according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a method for managing a vehicle with scheduled heating according to another embodiment of the present invention;

FIG. 3 is a flowchart illustrating a method for managing a vehicle with scheduled heating according to a preferred embodiment of the present invention;

FIG. 4 is a flowchart illustrating a method for heating with a constant heating power according to a preferred embodiment of the present invention;

FIG. 5 is a flowchart of the operation of the step power reservation heating method according to the preferred embodiment of the present invention

FIG. 6 is a schematic diagram of a hardware structure of an electronic device according to the present invention;

fig. 7 is a schematic diagram of the heating stage of the battery.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Fig. 1 is a flowchart illustrating a vehicle scheduled heating management method according to an embodiment of the present invention, including:

step S101, acquiring a first environment temperature of a position where a vehicle is located;

step S102, if the first environment temperature is lower than a preset temperature threshold value, reminding of the reserved vehicle is carried out;

and step S103, responding to the vehicle reserving request, and controlling the vehicle to perform battery heating.

In particular, the invention may be applied to an electronic device, such as a mobile terminal, capable of communicative connection with a vehicle and having processing capabilities. Mobile terminal is preferably smart phone

First, the electronic device executes step S101 to detect a vehicle position in real time, and then detects a first ambient temperature of a position where the vehicle is located. The vehicle can be wakened up by detecting the position of the vehicle in real time, and Positioning information of the vehicle can be acquired from a Positioning module of the vehicle, such as a Global Positioning System (GPS) module, a Beidou satellite navigation module and the like, so as to determine the position of the vehicle. The vehicle position can also be obtained from a background server in communication connection with the vehicle. And then acquiring a first ambient temperature of the position of the vehicle through an external temperature sensor of the vehicle or a background server.

In one embodiment, the first ambient temperature comprises: the current ambient temperature of the location of the vehicle, the daily minimum temperature of the area to which the location of the vehicle belongs, and/or the daily minimum temperature of the location of the vehicle.

After the first ambient temperature is obtained, the first ambient temperature is compared with a preset temperature threshold, if the first ambient temperature is lower than the preset temperature threshold, the step S102 is triggered, the reservation vehicle using reminding is carried out, and the reservation vehicle using reminding is used for reminding a user of carrying out vehicle using reservation. Specifically, the user can be reminded in the modes of short messages or application popup information and the like.

After receiving the reserved vehicle using reminder, the user inputs vehicle using reservation information in an application program of the electronic device, generates a vehicle using reservation request, triggers the electronic device to execute step S103, and controls the vehicle to execute battery heating in response to the vehicle using reservation request. The vehicle is controlled to perform battery heating, the vehicle may be awakened by the electronic device, and a battery heating request may be sent to the vehicle, the battery heating being performed by the vehicle in response to the battery heating request.

After the vehicle finishes performing the battery heating, vehicle preheating completion information can be returned to the electronic device.

In one embodiment, the method further comprises:

and receiving vehicle preheating completion information sent by the vehicle, and reminding vehicle heating completion.

The hot car completion reminder is used for reminding a user that the hot car is completed and the car can be used at any time.

Fig. 2 is a flowchart illustrating a vehicle heating schedule management method according to another embodiment of the present invention, including:

step S201, a current ambient temperature of a location where the vehicle is located, a daily minimum temperature of an area where the vehicle is located, and/or a daily minimum temperature of the location where the vehicle is located are obtained.

Step S202, if the current environment temperature of the position of the vehicle, the day lowest temperature of the area of the position of the vehicle or the day lowest temperature of the position of the vehicle is lower than a preset temperature threshold value, the appointed vehicle reminding is carried out.

Step S203, responding to the vehicle using reservation request, and determining the vehicle using time according to the reservation condition of the vehicle using reservation request.

In one embodiment, the vehicle using reservation condition is an immediate reservation vehicle, a specific time reservation vehicle, or a periodic reservation vehicle, and the determining the vehicle using time according to the reservation condition of the vehicle using reservation request in response to the vehicle using reservation request specifically includes:

responding to a vehicle using reservation request, and judging reservation conditions of the vehicle using reservation request;

and if the reservation condition of the vehicle using reservation request is that the vehicle is reserved for the periodic time, periodically determining the vehicle using time as the time set by the vehicle using reservation request according to the period indicated by the vehicle using reservation request.

In one embodiment, if the reservation condition of the vehicle using reservation request is that the vehicle is reserved for a periodic time, the periodically determining the vehicle using time as the time set by the vehicle using reservation request according to the period indicated by the vehicle using reservation request specifically includes:

Step S204, acquiring battery information from a vehicle, determining a battery heating time according to the vehicle using time and the battery information, and controlling the vehicle to heat at the battery heating time.

In one embodiment, the obtaining battery information from a vehicle and determining a battery heating time according to the vehicle using time and the battery information specifically include:

In one embodiment, the battery information includes a lowest battery temperature and a target battery temperature value at a current time, the second environment temperature includes an environment temperature of a location where a vehicle is located at the current time, an environment temperature predicted value lowest temperature of an environment where the vehicle is located between the current time and the vehicle using time, and the calculating the target battery temperature increase value according to the battery information and the second environment temperature specifically includes:

selecting the lowest value of the lowest temperature of the lowest battery temperature at the current moment, the environmental temperature of the position of the vehicle at the current moment and the environmental temperature forecast value lowest temperature of the environment of the vehicle between the current moment and the vehicle using moment as the lowest temperature value;

In one embodiment, the heating power of the vehicle is a constant power, the determining a battery heating time according to the target battery temperature rise value, the vehicle heating power, the current time, and the vehicle using time, and controlling the vehicle to heat at the battery heating time specifically include:

calculating a second time length from the current time to the vehicle using time;

In one embodiment, the heating power of the vehicle includes a plurality of gears, and the determining a battery heating time according to the target battery temperature rise value, the vehicle heating power, the current time, and the vehicle using time, and controlling the vehicle to heat at the battery heating time specifically includes:

If the difference value between the first time length and the second time length is smaller than the opposite number of the preset threshold value, determining that the battery heating time is the time when the vehicle is used minus the first time length, and ending the circulation, otherwise;

if the heating power of the next gear is available, selecting the heating power of the next gear as the current gear power, entering the next cycle, otherwise determining the battery heating time as the current time, and ending the cycle;

In one embodiment, the calculating, with the heating power to be calculated as a first time length, a time length for heating the battery to the target battery temperature rise value includes:

wherein, Δ t ₁ Is the first duration, C _p Is the specific heat capacity of the cell, M is the mass of the cell, T _bat-goal Is a target temperature value, T, of the battery _min Is the lowest value of temperature, T _{amb_forecast_min} For the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment of using the car at the present moment, P does wait to calculate heating power, A is battery and external heat transfer area, and h is the convection heat transfer coefficient of battery and external heat transfer, the temperature minimum is the ambient temperature of the minimum battery temperature of the present moment, the vehicle place position at the present moment, the present moment arrives use the minimum value in the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment.

Specifically, step S201 is executed first, and after the location of the vehicle is determined, the current ambient temperature of the location of the vehicle, the current day minimum temperature of the area to which the location of the vehicle belongs, and/or the next day minimum temperature of the location of the vehicle are obtained by the external temperature sensor or the server of the vehicle.

Then, if the current environment temperature T11 of the location where the vehicle is located, the current day minimum temperature T12 of the area where the vehicle is located, or the next day minimum temperature T13 of the location where the vehicle is located is less than the preset temperature threshold Ts, the step S202 is triggered and executed to perform the scheduled vehicle reminding.

Through the warning function of reservation car using to modes such as SMS or cell-phone APP bullet window information remind the user under the low temperature condition, whether there is the car demand. The user reservation vehicle reminding function can be set according to the user requirement, and is turned off or turned on, the reminding function can set the time period for receiving the reminding information, for example, 6.

After receiving the reservation car use reminder, the user inputs car use reservation information including the car use time in an application program of the electronic device, for example, an application program of the mobile terminal, generates a car use reservation request, triggers the electronic device to execute step S203, and determines the car use time according to a reservation condition of the car use reservation request in response to the car use reservation request.

In one embodiment, the vehicle using reservation condition is an immediate reservation vehicle, a specific time reservation vehicle or a periodic reservation vehicle, and the determining the vehicle using time according to the reservation condition of the vehicle using reservation request in response to the vehicle using reservation request specifically includes:

if the reservation condition of the vehicle using reservation request is that the vehicle is reserved at a specific time, determining the vehicle using time as the time set by the vehicle using reservation request;

Particularly, under the extremely low temperature environment, and when battery temperature is lower, if the user has the car demand of using, the user can make an appointment through the reservation function and set up, according to the car demand of using of difference, can provide different reservation options such as car, the single reservation car of using, intelligence reservation car, custom reservation car of using of reserving immediately. Wherein:

vehicle reservation is performed immediately: when a user wants to use the vehicle as soon as possible, the vehicle is awakened through the mobile phone end Application (APP), the battery is heated with the maximum heating power, and when the lowest temperature of the battery reaches a preset temperature value, the heating is stopped, so that the waiting time of the user can be reduced;

single reservation vehicle: the user only reserves one vehicle for a specific time;

intelligent reservation car: the user periodically appoints the vehicle for use, such as working day, weekend, specific date of each week/month (such as monday, wednesday, friday of each week); after the user finishes setting, the system automatically finishes heating the vehicle at the designed time point; choose this function for use, APP will no longer be to user's propelling movement reservation car information, reach the condition that needs the hot car, and the system will automatic start battery heating, accomplish the hot car. If the system detects that the user does not use the vehicle after completing the preheating for 2 times, automatically quitting the intelligent vehicle-using appointment mode and re-entering the vehicle-using appointment reminding mode; the intelligent reserved vehicle using mode is automatically quitted, the purpose is to avoid the requirement change of a user for vehicle use, the user is not reset, the reserved vehicle using mode is still executed, and battery feed is easily caused. And the booking vehicle using reminding mode is entered again, so that the reminding function of the change of the actual vehicle using requirement of the user is realized.

Customizing the reserved vehicle: the user can customize the vehicle using time according to the vehicle using requirements, such as reserving No. 5, no. 10 and No. 20 in the morning of No. 8; after the user finishes the setting, the system automatically finishes the appointed heating process.

Therefore, if the user selects to reserve the vehicle immediately, the reservation condition of the vehicle reservation request is to reserve the vehicle immediately, and the vehicle using time is determined to be the current time. If the user selects the single reservation vehicle or the custom reservation vehicle, the reservation condition of the vehicle using reservation request is the reserved vehicle at a specific time, and the time for using the vehicle is determined as the time set by the single reservation vehicle or the custom reservation vehicle. If the user selects the intelligent reservation vehicle using, the reservation condition of the vehicle using reservation request is the periodic time reservation vehicle using, and the vehicle using time is periodically determined as the time set by the vehicle using reservation request according to the period indicated by the vehicle using reservation request.

For the periodic time reservation vehicle, if the system detects that the user does not use the vehicle after completing the 2-time preheating, the system automatically exits the intelligent reservation vehicle using mode, namely stops periodically determining the time set by the vehicle using time as the vehicle using reservation request, and reenters the reservation vehicle using reminding mode. The intelligent reserved vehicle using mode is automatically quitted, the purpose is to avoid the requirement change of a user for vehicle use, the user is not reset, the reserved vehicle using mode is still executed, and battery feed is easily caused. And the booking vehicle using reminding mode is entered again, so that the reminding function of the change of the actual vehicle using requirement of the user is realized.

After the vehicle-use time is determined, the execution time of step S204 may be determined based on different reservation conditions according to the vehicle-use time.

If the reservation condition of the vehicle using reservation request is to immediately reserve the vehicle using, executing the step S204 at the current moment;

if the reservation condition of the vehicle use reservation request is a specific time reservation of the vehicle use or a periodic time reservation of the vehicle use, step S204 is performed at a preset time before the vehicle use time.

For example, step S204 is performed at a specific time of day before the vehicle-using time, for example, 8 am of the day before the vehicle-using time, or step S204 is performed at a preset time period before the vehicle-using time, for example, 10 hours.

And step S204 is executed, battery information is obtained from the vehicle, the battery heating time is determined according to the vehicle using time and the battery information, and the vehicle is controlled to be heated at the battery heating time.

In one embodiment, the obtaining battery information from a vehicle, determining a battery heating time according to the vehicle using time and the battery information, and controlling the vehicle to heat at the battery heating time specifically includes:

calculating a battery target temperature rise value according to the battery information and the second ambient temperature;

Specifically, the battery information may be acquired from an Electronic Control Unit (ECU) of the vehicle by waking up the vehicle through an Electronic device, such as a mobile terminal. Meanwhile, the second ambient temperature of the position of the vehicle can be obtained from a sensor or a server of the vehicle. And calculating a target temperature rise value of the battery according to the battery information and the second ambient temperature. And judging the time required by heating the battery target temperature rise value by adopting the vehicle heating power, and determining the battery heating time by combining the current time and the vehicle using time.

Specifically, the lowest battery temperature T at the present time is acquired from the vehicle _{bat_min} Obtaining the ambient temperature T of the position of the vehicle at the current moment from the vehicle or the server _{amb_true} (3) the lowest temperature T of the environmental temperature forecast value from the current time to the vehicle using time _{amb_forecast_min} Taking the minimum value of the three, and recording as the lowest temperature value T _min 。

And then calculating a target temperature rise value delta T1 of the battery, wherein the calculation formula is as follows:

△T1＝T _{bat_goal} -T _min wherein, T _{bat_goal} Is the battery target temperature value.

if the difference value obtained by subtracting the second time length from the first time length is greater than or equal to the opposite number of a preset threshold, determining that the battery heating time is the current time, and the preset threshold is a positive number; otherwise, determining that the battery heating time is the time when the vehicle is used and the first time length is subtracted.

Specifically, the vehicle may be heated with constant power, calculate a first time period Δ t1 required for heating with constant power P, and calculate a time period Δ t2 from the current time t1 to the vehicle time t 3.

In one embodiment, the calculating, using the time length for heating the battery to the target battery temperature rise value by using the heating power to be calculated as the first time length, specifically includes:

wherein, Δ t ₁ Is the first duration, C _p Is the specific heat capacity of the cell, M is the mass of the cell, T _bat-goal Is a target temperature value, T, of the battery _min Is the lowest value of temperature, T _{amb_forecast_min} The lowest temperature of the environmental temperature forecast value of the environment of the vehicle between the current time and the vehicle using timeAnd the temperature P is the heating power to be calculated, A is the heat exchange area between the battery and the outside, h is the convective heat transfer coefficient between the battery and the outside, and the lowest temperature value is the lowest value in the lowest temperature of the environmental temperature forecast value of the environment where the vehicle is located between the vehicle using moments, wherein the lowest temperature value is the lowest battery temperature at the current moment, the environmental temperature of the position where the vehicle is located at the current moment and the current moment.

Specifically, the heating process has the following relationship:

p = P heat absorption + P heat dissipation

P endotherm = C _p *M*dT

P heat dissipation = a × h (T) _bat -T _amb )

And P is the heating power to be calculated, and for the constant power condition, the heating power to be calculated is the constant power. P heat absorption is the battery heat absorption power, P heat dissipation is the battery heat dissipation power, C _p The specific heat capacity of the battery, M the mass of the battery, dT the temperature rise rate of the battery, A the heat exchange area between the battery and the outside, h the convective heat exchange coefficient between the battery and the outside, and T _bat Is the battery temperature, T _amb Is ambient temperature.

In addition, the target battery temperature rise value Δ T1=Δt1 × dT, and further

△T1＝T _{bat_goal} -T _min

Wherein, T _bat-goal Is a target temperature value, T, of the battery _min The lowest temperature.

Estimation of heating time before heating: in order to reserve enough heating time, the time delta T1 required for heating is estimated at the lowest constant heating rate dT, namely the lowest ambient temperature T is considered during the whole heating process _amb ＝T _{amb_forecast_min} Meanwhile, the temperature of the battery is considered to be reduced to the lowest temperature value T in the standing process _min 。

Thus, there are:

if the condition that the delta t 1-delta t2 is more than or equal to-K is met, namely the delta t1 is more than or equal to the delta t2-K, namely the time required by heating is longer than the time length from the current time t1 to the vehicle using time t3, and the K value is a redundant quantity, therefore, when the delta t 1-delta t2 is more than or equal to-K, the heating time is insufficient, the system does not wait any more, and heating is started immediately. Therefore, the vehicle using time is the current time, and the vehicle is controlled to immediately adopt the constant power for heating. K is a preset threshold value, and K is a positive value, such as 5min, 10min and the like. The opposite of the preset threshold is-K.

If the condition delta t 1-delta t2 is not satisfied to be more than or equal to-K, calculating the heating time t2 for starting heating, wherein the calculation formula is as follows:

t2＝t3-△t1

then, the vehicle is controlled to be heated with the constant power at the battery heating timing.

The embodiment realizes constant-power heating and quickly determines the heating moment.

As shown in fig. 4, which is a flowchart of a reserved heating method with constant heating power according to a preferred embodiment of the present invention, the method is executed after a user finishes reserved vehicle setting through APP, and the method includes:

step S401, obtaining (1) the lowest battery temperature T at the current moment _{bat_min} (2) ambient temperature T at the present moment _{amb_true} (3) the lowest temperature T of the environmental temperature forecast value from the current time to the vehicle using time _{amb_forecast_min} ；

Step S402, taking the minimum value of the three values and recording the minimum value as T _min ；

Step S403, calculating a target temperature rise value Δ T1 of the battery, which is calculated as follows:

△T1＝T _{bat_goal} -T _min

step S404, calculating the time length delta t1 required by heating with constant power P;

calculating the time length delta t2 from the current time t1 to the vehicle using time t3;

step S405, if the condition delta t 1-delta t2 is more than or equal to-K, immediately starting the battery for heating, and executing step S409, otherwise executing step S406;

step S406, if the condition delta t 1-delta t2 is not satisfied to be more than or equal to-K, calculating the moment t2 of starting heating, wherein the calculation formula is as follows: t2= t3- Δ t1;

step S407, detecting the current time, and if the time reaches the time t2, executing step S408;

step S408, if the lowest temperature T of the battery _{bat_min} Is not lower than the target temperature T _{bat_goal} If the temperature T is the lowest temperature T of the battery at the moment of T2, the user is reminded of the completion of the vehicle heating _{bat_min} Less than target temperature T _{bat_goal} If yes, starting the battery for heating, and executing the step S409;

step S409, if the lowest temperature T of the battery _{bat_min} Greater than or equal to the target temperature T _{bat_goal} Executing step S410, otherwise, continuing to execute step S409;

step S410, turning off the heating of the battery;

and step S411, reminding the user that the vehicle heating is finished and the vehicle can be used.

In the heating process, the user can check the hot car remaining time at the APP terminal.

In one embodiment, the heating power of the vehicle includes a plurality of gears, the determining a battery heating time according to the target battery temperature rise value, the vehicle heating power, the current time, and the vehicle using time, and controlling the vehicle to heat at the battery heating time specifically includes:

taking the heating power of the lowest gear as the current gear power, and starting to perform loop calculation, wherein in each loop:

and if the heating power of the next gear is available, selecting the heating power of the next gear as the power of the current gear, entering the next cycle, otherwise, determining the battery heating time as the current time, and ending the cycle.

Specifically, the heating power of the vehicle comprises a plurality of gears, the vehicle can adopt the stepped heating, and the lower the gear is, the lower the energy consumption is.

and calculating the time delta t1 required by heating and the time delta t2 from the current time t1 to the vehicle using time t3 by using the Pn gear power.

If the conditions of < I > delta t1 </I > - < delta t2 </I > are less than or equal to K and the difference between delta t1 and delta t2 is small, the heating time is insufficient, the system does not wait any more, and the heating is started immediately. Therefore, the vehicle using time is the current time, the Pn gear power is immediately adopted for heating, and K is a positive value, such as 5min and 10 min.

If the condition of | delta t 1-delta t2| < K, two conditions exist:

for the case that the time delta t 1-delta t2 is less than-K, the heating time is less than the time length from the current time t1 to the vehicle using time t3 by K, so the adopted power Pn is proper, the heating time t2 for starting heating is calculated, the Pn gear heating is adopted, and the calculation formula is as follows: t2= t3- Δ t1.

For the case that Δ t1- Δ t2> K, the heating time is K longer than the time from the current time t1 to the vehicle-using time t3, so the heating time is too long and the next gear power needs to be adopted. Therefore, if Δ t1- Δ t2> K and there is a heating power of the next gear, the heating power of the next gear is selected, and the Pn gear power is changed to Pn +1 gear power (n is 1,2,3, 4. Cndot. The higher the gear, the larger the heating power), and the next cycle is entered.

If the condition can not be met at the highest power gear, the battery heating is immediately started at the highest power gear.

The embodiment realizes graded heating and reduces heating energy consumption.

As shown in fig. 5, which is a flowchart of a step power reservation heating method according to a preferred embodiment of the present invention, the method is executed after a user completes reservation car setting through APP, and the method includes:

step S501, obtaining (1) the lowest battery temperature T at the current moment _{bat_min} (2) ambient temperature T at the present moment _{amb_true} (3) the lowest temperature T of the environmental temperature forecast value from the current time to the vehicle using time _{amb_forecast_min} ；

Step S502, the minimum value of the three is taken and recorded as T _min ；

Step S503, calculating a target temperature rise value Δ T1 of the battery, which is calculated as follows: Δ T1= T _{bat_goal} -T _min

Step S504, calculating the time delta t1 required by heating by using the Pn gear power;

step S505, if the condition of | [ delta ] t1- | [ delta ] t2| is less than or equal to K, immediately starting the battery for heating, and executing step S509;

step S506, if the condition | [ delta ] t 1-delta t2| < K but the condition Δ t 1-delta t2 < K is not satisfied, calculating the time t2 of starting heating, wherein the calculation formula is as follows: t2= t3- Δ t1, executing step S507, otherwise, converting the Pn gear power into Pn +1 gear power, and calculating the time duration Δ t1 required by heating with the Pn +1 gear power; calculating the time length delta t2 from the current time t1 to the vehicle using time t3, executing step S505, if the Pn gear power is the highest power, immediately starting the battery heating at the highest power gear, and executing step S509;

step S507, detecting the current time, and if the time reaches t2, executing step S408;

step S508, if the lowest temperature T of the battery _{bat_min} Is equal to or higher than the target temperature T _{bat_goal} If the temperature T is the lowest temperature T of the battery at the moment of T2, the user is reminded of the completion of the vehicle heating _{bat_min} Less than target temperature T _{bat_goal} If yes, the battery heating is started, and step S509 is executed;

step S509, if the lowest temperature T of the battery _{bat_min} Greater than or equal to the target temperature T _{bat_goal} Step S510 is executed, otherwise, step S509 is continuously executed;

step S510, turning off battery heating;

and step S511, reminding the user that the vehicle heating is finished and the vehicle can be used.

The vehicle appointment heating management method provided by the embodiment of the invention has the function of reminding a user of using a vehicle for appointment, is humanized in design and convenient to use, and can intelligently heat the vehicle in advance under a low-temperature environment, so that the user can drive the vehicle immediately without waiting. Meanwhile, an intelligent preheating calculation method is provided, preheating can be completed before a user uses the vehicle, the situation that the preheating is completed too early and the temperature of the battery is reduced when the user uses the vehicle for standby can be avoided, energy consumption is increased, so that the battery has proper temperature in a low-temperature environment and is good in vehicle dynamic property, the battery also has strong energy recovery capability and good economical efficiency, the lithium precipitation risk of the battery in the low-temperature environment is reduced, and the safety and the service life of the battery are improved.

Fig. 3 is a flowchart illustrating a vehicle heating management method according to a preferred embodiment of the present invention, which includes:

step S301, a mobile phone APP terminal automatically detects the position of a vehicle in real time;

step S302, the system acquires the ambient temperature T1 of the position of the vehicle, the lowest temperature T2 of the area on the same day and the lowest temperature T3 of the area on the next day;

step S303, comparing the T1, the T2 and the T3 with a preset value Ts, and when any value in the T1, the T2 and the T3 is smaller than the Ts, sending reminding information whether the user needs to reserve the vehicle or not to the user in a mode of short message of a mobile phone or APP pop-up window information and the like;

step S304, if the user needs to reserve the vehicle, entering an APP reserved vehicle interface for setting; the user can select different reservation car setting options according to the demand: the method comprises the following steps of immediately reserving a vehicle for use, reserving a vehicle for use in a single time, intelligently reserving a vehicle for use, and customizing a reserved vehicle for use;

step S305, after the user finishes setting, the APP enters a reserved vehicle using state and enters a reserved vehicle using process;

step S306, at the time of t2, the vehicle enters a preheating state, and the remaining time of the hot vehicle can be checked at the APP end;

and step S307, after the vehicle heating is finished, reminding the user of finishing the vehicle heating, wherein the vehicle can be used.

In the whole heating process, a user can check the remaining time of the hot car at the APP terminal. The remaining time of the hot car can be realized by the following method:

when the user wants to check the heating remaining time of the vehicle battery, the user can judge the battery heating stage by clicking a button of the mobile terminal or the vehicle-mounted terminal for checking the heating remaining time of the vehicle battery.

The battery heating characteristics are different in different battery heating stages, and particularly the stable states of the battery temperature rise rates are different in different battery heating stages. As shown in fig. 7, the battery heating phase includes a heating initiation phase 71 and a heating rate stabilization phase 72.

In one embodiment, the determining the battery heating stage specifically includes:

and calculating the temperature rise rate of the battery and the change rate of the temperature rise rate of the battery, if the temperature rise rate of the battery is greater than or equal to a preset rate threshold value, and the change rate of the temperature rise rate of the battery is less than or equal to a preset change rate threshold value, judging that the heating stage of the battery is a heating rate stable stage, otherwise, judging that the heating stage of the battery is a heating initial stage.

Wherein, the battery temperature rise rate is:

dT _real _time ＝(T1 _real-time -T2 _real-time ) /. DELTA.t, wherein dT _real _time For the rate of temperature rise of the battery, T1 _real-time Minimum battery temperature at the present time, T2 _real-time The minimum battery temperature at the time corresponding to the preset time before the current time is obtained, and delta t is the preset time.

The rate of change of the cell temperature rise rate was:

R＝(dT1 _real _time -dT2 _real _time )/dT2 _real _time

wherein R is the change rate of the temperature rise rate of the battery, dT1 _real _time For the rate of temperature rise of the battery at the present time, dT2 _real _time And the battery temperature rise rate at the time corresponding to the preset time before the current time is obtained.

And when the battery heating stage is a heating initial stage, acquiring a target battery temperature, a real-time minimum battery temperature, a real-time environment temperature and the heating power, and calculating the heating remaining time of the vehicle battery based on the target battery temperature, the real-time minimum battery temperature, the real-time environment temperature and the heating power. And then outputs the vehicle battery heating remaining time. And when the battery heating stage is a heating rate stabilization stage, acquiring a target battery temperature, a real-time minimum battery temperature and a battery temperature rise rate, calculating the vehicle battery heating remaining time according to the target battery temperature, the real-time minimum battery temperature and the battery temperature rise rate, and outputting the vehicle battery heating remaining time.

The front section after the heating start is a heating initial stage, the heating remaining time of the battery is calculated in the stage, and because the temperature rise rate of the battery is unstable in the stage, the heating remaining time of the vehicle battery is calculated theoretically, and errors are reduced.

Specifically, the heating process has the following relationship:

p = P heat absorption + P heat dissipation

P endotherm = C _p *M*dT

P Heat sink = A x h (Tbat-Tamb)

And P is the heating power to be calculated, and for the constant power condition, the heating power to be calculated is the constant power. P heat absorption is the battery heat absorption power, P heat dissipation is the battery heat dissipation power, C _p The specific heat capacity of the battery is shown, M is the mass of the battery, dT is the temperature rise rate of the battery, A is the heat exchange area between the battery and the outside, h is the convective heat exchange coefficient between the battery and the outside, tbat is the temperature of the battery, and Tamb is the ambient temperature.

Therefore, the battery target temperature rise value Δ T1=Δt1 × dT, and Δ T1= T are combined _{bat_goal} -T _min And calculating the heating residual time of the vehicle battery. Wherein, delta T1 is a target temperature rise value of the battery, T _bat-goal Is a target temperature value, T, of the battery _min Is the lowest temperature value.

At the initial stage of heating, the lowest temperature T _min For real-time minimum battery temperature, ambient temperature T _amb For real-time ambient temperature T _{amb_real} _time Temperature T of battery _bat Then the real-time minimum battery temperature T _bat-min-real _time . Wherein the minimum battery temperature is the lowest cell temperature in the battery pack.

In one embodiment, the calculating the remaining time for heating the vehicle battery according to the target battery temperature, the real-time minimum battery temperature, the real-time ambient temperature, and the heating power specifically includes:

according to the target temperature of the battery, the real-time minimum battery temperature and the real-time environment temperature, calculating the heating remaining time of the vehicle battery based on a heating remaining time calculation formula corresponding to the heating initial stage, wherein the heating remaining time calculation formula corresponding to the heating initial stage is as follows:

wherein Δ t _1-real _time For the remaining time of heating, C _p Is the specific heat capacity of the cell, M is the mass of the cell, T _bat-goal Is a target temperature value of the battery, T _bat-min-real _time For real-time minimum battery temperature, T _{amb_real} _time P is the heating power.

The present embodiment considers that the battery temperature increase rate is unstable in the initial stage of heating, and therefore, reduces the error by theoretically calculating the vehicle battery heating remaining time.

And in the latter stage after the start of heating, i.e., the heating rate stabilization stage, the heating remaining time of the battery is calculated in this stage. Because the temperature rise rate of the battery is stable in the stage, the heating residual time of the battery is calculated by using the real-time actual temperature rise rate, and the accuracy is higher.

In one embodiment, the calculating the remaining time for heating the vehicle battery according to the target battery temperature, the real-time minimum battery temperature, and the battery temperature rise rate specifically includes:

according to the target temperature of the battery, the real-time minimum battery temperature and the temperature rise rate of the battery, calculating the heating remaining time of the battery of the vehicle based on a heating remaining time calculation formula corresponding to the heating rate stabilization stage, wherein the heating remaining time calculation formula corresponding to the heating rate stabilization stage is as follows:

wherein, Δ t _1-real _time For the remaining time of heating, T _bat-goal Is a target temperature value, T, of the battery _bat-min-real _time For real time minimum battery temperature, dT _real _time Is the battery temperature rise rate.

In the embodiment, the heating remaining time of the battery is calculated in the heating rate stabilization stage, the heating remaining time of the battery is calculated by using the real-time actual battery temperature rise rate, and the accuracy of the calculated heating remaining time of the vehicle battery is improved.

In one embodiment, the battery temperature rise rate is:

dT _real _time ＝(T1 _real-time -T2 _real-time ) /. DELTA.t, wherein dT _real _time For the rate of temperature rise of the cell, T1 _real-time Minimum battery temperature at the present time, T2 _real-time The minimum battery temperature at the time corresponding to the preset time before the current time is obtained, and delta t is the preset time.

And the temperature rise rate of the battery is the change rate of the minimum battery temperature within a preset time length. In particular, during the heating of the battery, a plurality of minimum battery temperatures are recorded for a certain preset time period. I.e. the minimum battery temperature is recorded every time a preset time period has elapsed,

when the user needs to check the remaining time of the vehicle battery, the minimum battery temperature at the current moment is T1 _real-time The minimum of the previous recording time, i.e. the time corresponding to the preset time length before the current timeBattery temperature of T2 _real-time . Wherein the preset time period is actually selected, for example, 5min.

The method and the device fully consider the stable conditions of the battery temperature rise rate in different battery heating stages, apply different algorithms in different battery heating stages, and estimate the residual time of vehicle battery heating, so that estimation errors are reduced. Meanwhile, the embodiment provides specific algorithms at different stages, and accurate estimation of the heating residual time of the vehicle battery at different stages is realized.

Fig. 6 is a schematic diagram of a hardware structure of an electronic device according to the present invention, which includes:

at least one processor 601; and the number of the first and second groups,

a memory 602 communicatively coupled to at least one of the processors 601; wherein the content of the first and second substances,

the memory 602 stores instructions executable by at least one of the processors to enable the at least one processor to perform a vehicle predictive heating management method as described above.

In fig. 6, one processor 601 is taken as an example.

The electronic device may further include: an input device 603 and a display device 604.

The processor 601, the memory 602, the input device 603, and the display device 604 may be connected by a bus or other means, and are illustrated as being connected by a bus.

The memory 602, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the vehicle heating schedule management method in the embodiments of the present application, for example, the method flows shown in fig. 1 and fig. 2. The processor 601 executes various functional applications and data processing by running nonvolatile software programs, instructions, and modules stored in the memory 602, that is, implements the vehicle warming reservation management method in the above-described embodiment.

The memory 602 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the vehicle scheduled heating management method, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 602 optionally includes memory located remotely from the processor 601, and these remote memories may be connected over a network to a device that performs the vehicle pre-heating management method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 603 may receive input user clicks and generate signal inputs related to user settings and functional control of the vehicle heating management schedule. The display device 604 may include a display screen or the like.

When the one or more modules are stored in the memory 602, when executed by the one or more processors 601, the vehicle predictive heating management method of any of the method embodiments described above is performed.

An embodiment of the present invention provides a storage medium storing computer instructions for performing all the steps of the vehicle reservation heating management method as described above when the computer executes the computer instructions.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A vehicle scheduled heating management method, comprising:

acquiring a first ambient temperature of a position where a vehicle is located;

2. The vehicle predictive heating management method of claim 1, wherein the first ambient temperature comprises: the current ambient temperature of the position of the vehicle, the day minimum temperature of the area where the vehicle is located, and/or the day minimum temperature of the position of the vehicle, if the first ambient temperature is lower than a preset temperature threshold, then the reservation vehicle is reminded, and the method specifically comprises the following steps:

and if the current ambient temperature of the position of the vehicle, the current day lowest temperature of the area where the vehicle is located, or the next day lowest temperature of the position of the vehicle is lower than a preset temperature threshold value, reminding the reserved vehicle.

3. The vehicle reservation heating management method according to claim 1, wherein the controlling the vehicle to perform battery heating in response to the vehicle reservation request specifically comprises:

4. The vehicle reservation heating management method according to claim 3, wherein the vehicle use reservation condition is an immediate reservation vehicle, a specific time reservation vehicle, or a periodic reservation vehicle, and the determining the vehicle use time according to the reservation condition of the vehicle use reservation request in response to the vehicle use reservation request specifically comprises:

5. The vehicle reservation heating management method according to claim 4, wherein if the reservation condition of the vehicle use reservation request is that the vehicle is reserved for a periodic time, the periodically determining the time set by the vehicle use time for the vehicle use reservation request according to the period indicated by the vehicle use reservation request specifically comprises:

if the reservation condition of the vehicle using reservation request is that the vehicle is reserved at the periodic time, periodically determining the time when the vehicle using is set as the time set by the vehicle using reservation request according to the period indicated by the vehicle using reservation request;

and if the number of times of the unused vehicle exceeds a preset number threshold, stopping the periodical determination of the time set by the vehicle using time for the vehicle using reservation request.

6. The vehicle scheduled heating management method according to claim 3, wherein the obtaining battery information from a vehicle, determining a battery heating time according to the vehicle using time and the battery information, and controlling the vehicle to heat at the battery heating time specifically comprises:

obtaining battery information and a second ambient temperature of a position where the vehicle is located from the vehicle;

7. The vehicle scheduled heating management method according to claim 6, wherein the battery information includes a lowest battery temperature at a current time and a target battery temperature value, the second environment temperature includes an environment temperature at a location of the vehicle at the current time and an environment temperature predicted value lowest temperature of an environment where the vehicle is located between the current time and the vehicle using time, and the calculating the target battery temperature increase value according to the battery information and the second environment temperature specifically includes:

and calculating a target temperature rise value of the battery as the value obtained by subtracting the lowest temperature value from the target temperature value of the battery.

8. The vehicle scheduled heating management method according to claim 6, wherein the heating power of the vehicle is a constant power, and the determining a battery heating time according to the battery target temperature rise value, the vehicle heating power, the current time and the vehicle using time and controlling the vehicle to heat at the battery heating time specifically comprise:

and controlling the vehicle to adopt the constant power heating at the battery heating moment.

9. The vehicle scheduled heating management method according to claim 6, wherein the heating power of the vehicle comprises a plurality of gears, and the determining a battery heating time according to the battery target temperature rise value, the vehicle heating power, the current time and the vehicle using time and controlling the vehicle to heat at the battery heating time specifically comprises:

taking the current gear power as heating power to be calculated, and calculating the time length for heating the battery to the target battery temperature rise value by adopting the heating power to be calculated as first time length;

10. The vehicle scheduled heating management method according to claim 8 or 9, wherein the calculating a time period for heating the battery to the battery target temperature rise value using the heating power to be calculated as a first time period specifically includes:

/>

wherein, Δ t ₁ Is the first duration, C _p Is the specific heat capacity of the cell, M is the mass of the cell, T _bat-goal Is a target temperature value of the battery, T _min Is the lowest value of temperature, T _{amb_forecast_min} For the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment of using the car at the present moment, P does wait to calculate heating power, A is battery and external heat transfer area, and h is the convective heat transfer coefficient of battery and external heat transfer, the temperature minimum value is the minimum battery temperature of the present moment, the ambient temperature of the vehicle place position at the present moment, the present moment arrives the minimum value among the ambient temperature forecast value minimum temperature of the vehicle place environment between the moment of using the car.

11. An electronic device, comprising:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein the content of the first and second substances,

the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to perform the vehicle pre-heating management method of any one of claims 1 to 10.

12. A storage medium storing computer instructions for performing all the steps of the vehicle predictive heating management method according to any one of claims 1 to 10 when the computer instructions are executed by a computer.