CN111769240B

CN111769240B - Electric automobile remote thermal management control method, device and system and storage medium

Info

Publication number: CN111769240B
Application number: CN202010429477.7A
Authority: CN
Inventors: 王玮; 李超; 牛大伟
Original assignee: China Express Jiangsu Technology Co Ltd
Current assignee: China Express Jiangsu Technology Co Ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2022-10-18
Anticipated expiration: 2040-05-20
Also published as: CN111769240A

Abstract

The invention discloses a method, a device and a system for remote thermal management control of an electric automobile and a storage medium, wherein the method comprises the following steps: acquiring a reserved vehicle using instruction which is sent by a user side and comprises reserved information such as a predicted departure time, a predicted destination position and a predicted driving mode; determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the acquired current parking point position; determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving time; determining the starting time and the starting duration of the thermal management based on the estimated starting time; and controlling a heat pump system of the vehicle to be used to perform heat management on the vehicle to be used by the power domain controller according to the determined heat management control information. By adopting the embodiment of the invention, unnecessary energy waste can be reduced while the use comfort of the vehicle is improved and the cruising ability of the vehicle is increased.

Description

Electric automobile remote thermal management control method, device and system and storage medium

Technical Field

The invention relates to the technical field of vehicles, in particular to a method, a device and a system for remote thermal management control of an electric automobile and a storage medium.

Background

With the increasing contradiction between energy demand and environmental pollution and resource shortage in the development process of human society, the electric automobile with the advantages of economy, environmental protection and the like becomes a vehicle selected by more and more people. With the increasing requirements of people on the dynamic property, the economical efficiency and the comfort of automobiles, the heat management of electric automobiles becomes a necessary option.

In the conventional heat management of an electric vehicle, when the temperature of a battery is judged to be in a limit condition, the energy of a charging pile is utilized to perform pre-heat management on the battery of the electric vehicle so as to enable the temperature of the battery to reach a fixed target temperature.

However, the inventor has found in the implementation of the present invention that, since the driving mode is an important factor determining the lowest operating temperature of the battery during the driving of the electric vehicle, and the ambient temperature and the driving time period are important factors affecting the temperature change of the battery, in such a manner as described above, the target temperature for thermally managing the battery is fixed, and the influence of the ambient temperature, the driving time period, the driving mode, and the like in each trip is not considered, and thus, the battery is likely to be heated or cooled too much, thereby wasting unnecessary energy.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a system for remote thermal management control of an electric automobile and a storage medium, which can improve the comfort of use of the automobile, increase the cruising ability of the automobile and reduce unnecessary energy waste.

In order to achieve the above object, an embodiment of the present invention provides a remote thermal management control method for an electric vehicle, including:

acquiring a reserved vehicle using instruction sent by a user side; the reserved vehicle using instruction comprises reservation information set by a user; the reservation information comprises a predicted departure time, a predicted destination position and a predicted driving mode;

acquiring the current parking spot position of a vehicle to be used;

determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the current parking point position;

determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration;

determining the starting time and the starting duration of the thermal management based on the estimated starting time;

sending thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management includes battery thermal management.

As an improvement of the foregoing solution, the determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted ambient temperature, and the predicted driving duration specifically includes:

determining the thermal management mode according to the size relation among the predicted environment temperature, the first temperature threshold and the second temperature threshold; wherein the first temperature threshold is less than or equal to the second temperature threshold;

determining the lowest working temperature of the battery according to the predicted driving mode and the thermal management mode based on the corresponding relation among the driving mode, the thermal management mode and the lowest working temperature of the battery;

determining a temperature change predicted value of the vehicle to be used after the current trip is finished according to the predicted environment temperature and the predicted running time;

and calculating the target temperature of the battery according to the predicted temperature change value and the lowest working temperature of the battery at this time.

As an improvement of the above scheme, the determining the current thermal management starting time and the current thermal management starting duration based on the estimated departure time specifically includes:

acquiring the appointment time;

calculating a time difference between the reserved time and the predicted departure time;

and determining the starting time of the thermal management and the starting duration of the thermal management according to the size relationship between the time difference and the time threshold.

As a refinement of the above, the reservation information further includes a passenger compartment target temperature;

the thermal management control information further includes the passenger compartment target temperature; the thermal management also includes passenger compartment thermal management.

As an improvement of the above scheme, before sending the thermal management control information to the power domain controller of the vehicle to be used through the vehicle-mounted T-Box, the method further includes the steps of:

acquiring the current temperature of a passenger compartment of the vehicle to be used;

acquiring the required time for adjusting the temperature of the passenger compartment of the vehicle to be used from the current temperature of the passenger compartment to the target temperature of the passenger compartment;

and correcting the thermal management starting time and the thermal management starting time according to the required time.

acquiring driving behavior data of the user;

determining the battery temperature adjustment amount according to the driving behavior data of the user;

and correcting the target temperature of the current battery according to the battery temperature adjustment amount.

As an improvement of the above scheme, after the sending the thermal management control information to the power domain controller of the vehicle to be used through the vehicle-mounted T-Box so that the power domain controller controls the heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information, the method further includes the following steps:

when the estimated departure time is reached, judging whether the vehicle to be used enters a running state or not;

when the vehicle to be used is judged not to enter a running state, a thermal management delay instruction is sent to a power domain controller of the vehicle to be used through the vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management delay instruction and the thermal management control information; wherein the thermal management delay instruction comprises a thermal management extension time.

Correspondingly, another embodiment of the present invention provides an electric vehicle remote thermal management control device, including:

the reserved vehicle using instruction acquisition module is used for acquiring a reserved vehicle using instruction sent by a user side; the reserved vehicle using instruction comprises reservation information set by a user; the reservation information comprises a predicted departure time, a predicted destination position and a predicted driving mode;

the current parking position acquisition module is used for acquiring the current parking position of the vehicle to be used;

the data prediction module is used for determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the current parking point position;

the first control information acquisition module is used for determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted running duration;

the second control information acquisition module is used for determining the starting time and the starting duration of the thermal management based on the estimated starting time;

the thermal management control module is used for sending thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management includes battery thermal management.

As an improvement of the above scheme, the first control information obtaining module specifically includes:

the current thermal management mode determining unit is used for determining the current thermal management mode according to the size relationship among the predicted environment temperature, the first temperature threshold and the second temperature threshold; wherein the first temperature threshold is less than or equal to the second temperature threshold;

the battery minimum working temperature determining unit is used for determining the battery minimum working temperature according to the predicted driving mode and the current thermal management mode based on the corresponding relation among the driving mode, the thermal management mode and the battery minimum working temperature;

the temperature change predicted value determining unit is used for determining a temperature change predicted value after the vehicle to be used finishes the current journey according to the predicted environment temperature and the predicted running duration;

and the current battery target temperature calculating unit is used for calculating the current battery target temperature according to the temperature change predicted value and the current battery minimum working temperature.

As an improvement of the above scheme, the second control information obtaining module specifically includes:

a reserved time acquisition unit for acquiring a reserved time;

a time difference calculation unit for calculating a time difference between the reserved time and the estimated departure time;

and the second control information determining unit is used for determining the thermal management starting time and the thermal management starting duration according to the size relation between the time difference and the time threshold.

As an improvement of the above scheme, the electric vehicle remote thermal management control device further comprises a first control information correction module;

the first control information correction module specifically includes:

a passenger compartment current temperature obtaining unit, configured to obtain a passenger compartment current temperature of the vehicle to be used;

the required time length obtaining unit is used for obtaining the required time length for adjusting the temperature of the passenger compartment of the vehicle to be used from the current temperature of the passenger compartment to the target temperature of the passenger compartment;

and the first information correction unit is used for correcting the thermal management starting time and the thermal management starting time according to the required time.

As an improvement of the above scheme, the electric vehicle remote thermal management control device further comprises a second control information correction module;

the second control information correction module specifically includes:

a driving behavior data acquisition unit for acquiring driving behavior data of the user;

the battery temperature adjustment quantity determining unit is used for determining the battery temperature adjustment quantity according to the driving behavior data of the user;

and the second information correction unit is used for correcting the current battery target temperature according to the battery temperature adjustment amount.

As an improvement of the above scheme, the electric vehicle remote thermal management control device further comprises a thermal management delay control module;

the thermal management delay control module specifically comprises:

the vehicle state judging unit is used for judging whether the vehicle to be used enters a running state or not when the predicted departure time is reached;

the delay control unit is used for sending a thermal management delay instruction to a power domain controller of the vehicle to be used through the vehicle-mounted T-Box when the vehicle to be used is judged not to enter a running state, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management delay instruction and the thermal management control information; wherein the thermal management delay instruction comprises a thermal management extension time.

The invention provides a remote thermal management control system of an electric automobile, which comprises a user side, a cloud platform, an on-board T-Box of a vehicle to be used, a power domain controller and a heat pump system, wherein the on-board T-Box of the vehicle to be used is connected with the cloud platform; wherein the content of the first and second substances,

the user side is used for acquiring reservation information set by a user, generating a reservation vehicle using instruction according to the reservation information and sending the reservation vehicle using instruction to the cloud platform; wherein the reservation information includes a predicted departure time, a predicted destination location, and a predicted driving pattern;

the cloud platform comprises the electric automobile remote thermal management control device.

As an improvement of the above scheme, the electric vehicle remote thermal management control system further comprises a battery management system of the vehicle to be used; wherein the content of the first and second substances,

the battery management system is used for generating connection state confirmation information and sending the connection state confirmation information to the user side when detecting that the vehicle to be used and the charging equipment are in a normal connection state;

the user side specifically comprises:

a connection status confirmation information receiving module, configured to receive the connection status confirmation information;

the gear state acquisition module is used for acquiring the current gear of the vehicle to be used;

the reservation information acquisition module is used for acquiring reservation information set by a user;

the reserved vehicle using instruction generating module is used for generating a reserved vehicle using instruction according to the reserved information and sending the reserved vehicle using instruction to the cloud platform when the reserved vehicle using instruction is judged to meet the reserved conditions;

wherein the reservation conditions include:

the connection state confirmation information is received currently; and the number of the first and second groups,

the current gear of the vehicle to be used is a P gear; and the number of the first and second groups,

the predicted departure time is not equal to a preset departure time default value; and the number of the first and second groups,

the time difference between the current time and the predicted departure time is greater than a preset time difference threshold.

Another embodiment of the present invention provides an electric vehicle remote thermal management control apparatus, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor executes the computer program to implement the electric vehicle remote thermal management control method according to any one of the above.

Another embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, where when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the electric vehicle remote thermal management control method according to any one of the above.

Compared with the prior art, the method, the device, the system and the storage medium for controlling the remote thermal management of the electric vehicle provided by the embodiment of the invention have the advantages that the reserved vehicle instruction including the reserved information such as the predicted departure time, the predicted destination position and the predicted driving mode, which is sent by a user side, is obtained; determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the acquired current parking position, wherein the reservation information comprises predicted departure time, predicted destination position and predicted driving mode; determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; determining the starting time and the starting duration of the thermal management based on the estimated starting time; and sending the thermal management control information comprising the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information. When the embodiment of the invention is used for carrying out the remote thermal management control on the electric automobile, the target temperature of the battery for the current thermal management is determined based on the predicted driving mode, the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey, so that the situation that the battery is heated or cooled too much can be effectively avoided, the comfort of the vehicle in use can be improved, the cruising ability of the vehicle is improved, and meanwhile, unnecessary energy waste is reduced.

Drawings

Fig. 1 is a schematic flow chart of a remote thermal management control method for an electric vehicle according to an embodiment of the present invention.

Fig. 2 is a schematic flow chart of a remote thermal management control method for an electric vehicle according to another embodiment of the present invention.

Fig. 3 is a schematic flow chart of a remote thermal management control method for an electric vehicle according to another embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an electric vehicle remote thermal management control device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an electric vehicle remote thermal management control system according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an electric vehicle remote thermal management control device according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The electric vehicle remote thermal management control method provided by the embodiment of the invention is applied to a cloud platform connected with a user side and a vehicle-mounted T-Box, and comprises the following steps S11 to S16:

s11, acquiring a reserved vehicle using instruction sent by a user side; the reserved vehicle using instruction comprises reserved information set by a user; the reservation information comprises a predicted departure time, a predicted destination position and a predicted driving mode;

s12, acquiring the current parking point position of the vehicle to be used;

s13, determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the current parking point position;

s14, determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted running time;

s15, determining the starting time and the starting duration of the thermal management based on the estimated starting time;

s16, sending thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management includes battery thermal management.

To facilitate understanding of the present embodiment, a specific example of the process of the electric vehicle remote thermal management control may be as follows:

firstly, after a user connects an electric automobile with a charging pile, reservation information at least comprising a predicted departure time, a predicted destination position and a predicted driving mode is set through a user side, and the user side generates a reservation vehicle instruction according to the reservation information set by the user and sends the reservation vehicle instruction to a cloud platform; then, after acquiring a vehicle booking instruction sent by a user side, the cloud platform acquires the current parking spot position of a vehicle to be used; then, the cloud platform determines the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the current parking point position; the predicted driving time can be obtained by predicting according to the predicted driving mode, the predicted departure time, the predicted destination position and the current parking position by combining big data and road conditions; the predicted environment temperature may be an environment average temperature of the vehicle to be used in the current trip, or an environment temperature of the vehicle to be used when the vehicle starts, and in a specific implementation, the predicted environment temperature may be selected according to an actual situation, and is not limited herein, for example, when the predicted environment temperature is the environment average temperature of the vehicle to be used in the current trip, the route of the current trip may be determined according to the predicted destination position and the current stop position, and the predicted environment temperature may be predicted through big data according to the route of the current trip and the predicted start time, or when the predicted environment temperature is the environment temperature of the vehicle to be used when the vehicle starts, the predicted environment temperature may be predicted through big data according to the current stop position and the predicted start time; then, the cloud platform determines the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving time, because different driving modes have different requirements on the minimum working temperature of the battery and because the environment temperature and the driving time can influence the battery temperature change in the driving process of the vehicle, the cloud platform can specifically determine the current battery minimum temperature based on the predicted driving mode, and then determine the current thermal management mode and the current battery target temperature based on the current battery minimum temperature, the predicted environment temperature and the predicted driving time, so that the temperature of the battery is close to or just reaches the current battery minimum temperature required for maintaining the performance when the vehicle reaches the predicted destination; the present thermal management mode includes a heating mode and a cooling mode, and specifically may be determined as the heating mode when it is determined that the predicted environment temperature is lower than a first temperature threshold, and determined as the cooling mode when it is determined that the predicted environment temperature is higher than a second temperature threshold, where the first temperature threshold is less than or equal to the second temperature threshold, and optionally, the first temperature threshold is-10 ℃ and the second temperature threshold is 35 ℃; the calculation mode of the target temperature of the battery at this time may specifically be that according to the predicted ambient temperature and the predicted driving time, the minimum heat required for maintaining the battery temperature not lower than the minimum temperature of the battery at this time in the driving process is calculated, and then according to the minimum heat, the target temperature of the battery at this time is calculated; the calculation mode of the target temperature of the battery at this time may specifically be that a battery temperature change value after the predicted driving time is calculated according to the predicted environment temperature and the predicted driving time, and then the target temperature of the battery at this time is calculated according to the lowest temperature of the battery at this time and the battery temperature change value; then, the cloud platform determines the thermal management starting time and the thermal management starting time based on the estimated starting time, specifically may determine the thermal management starting time and the thermal management starting time according to a time difference between the estimated starting time and a reserved time, and specifically may also determine the thermal management starting time and the thermal management starting time according to the estimated starting time and a preset thermal management starting time; and finally, the cloud platform sends the thermal management control information comprising the thermal management starting time, the thermal management mode and the battery target temperature to the power domain controller of the vehicle to be used through the vehicle-mounted T-Box, so that the power domain controller sends a control request to the heat pump system of the vehicle to be used according to the thermal management control information, the heat pump system of the vehicle to be used is controlled to carry out battery thermal management on the vehicle to be used, and the remote thermal management control of the electric vehicle is realized.

It should be noted that, in an optional embodiment, the power domain controller further needs to confirm that the SOC (State of charge) of the battery reaches a preset threshold to control the heat pump system to start thermal management, and after the thermal management is started, if it is detected that the SOC of the battery is lower than the preset threshold, the heat pump system is automatically controlled to stop thermal management, return to the charging State, and when the SOC threshold is reached, the heat pump system is controlled to start thermal management again.

According to the method, the device, the system and the storage medium for controlling the remote thermal management of the electric vehicle, provided by the embodiment of the invention, the appointed vehicle-using instruction which is sent by a user side and comprises the appointed information such as the expected departure time, the expected destination position, the expected driving mode and the like is obtained; determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the acquired current parking position, wherein the reservation information comprises predicted departure time, predicted destination position and predicted driving mode; determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; determining the starting time and the starting duration of the thermal management based on the estimated starting time; and sending the thermal management control information comprising the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information. When the embodiment of the invention is used for carrying out the remote thermal management control on the electric automobile, the target temperature of the battery for the current thermal management is determined based on the predicted driving mode, the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey, so that the situation that the battery is heated or cooled too much can be effectively avoided, the comfort of the vehicle in use can be improved, the cruising ability of the vehicle is improved, and meanwhile, unnecessary energy waste is reduced.

As one optional embodiment, the step S13 specifically includes:

s131, determining the thermal management mode according to the predicted environment temperature and the size relationship between the first temperature threshold and the second temperature threshold; wherein the first temperature threshold is less than or equal to the second temperature threshold.

If the current thermal management mode includes a heating mode and a cooling mode, the current thermal management mode is determined according to the magnitude relation among the predicted environment temperature, the first temperature threshold and the second temperature threshold, specifically, the current thermal management mode is determined to be the heating mode when the predicted environment temperature is lower than the first temperature threshold, and the current thermal management mode is determined to be the cooling mode when the predicted environment temperature is higher than the second temperature threshold. Optionally, the first temperature threshold is-10 ℃ and the second temperature threshold is 35 ℃.

And S132, determining the lowest working temperature of the battery according to the predicted driving mode and the thermal management mode based on the corresponding relation among the driving mode, the thermal management mode and the lowest working temperature of the battery.

Optionally, the corresponding relationship is specifically: for the heating mode, when the driving mode is the normal mode or the economy mode, the lowest battery temperature is-10 ℃, and when the driving mode is the sport mode, the lowest battery temperature is 20 ℃; for the cooling mode, the battery temperature is not higher than 25 ℃ when the driving mode is the normal mode or the eco mode, and the battery temperature is not higher than 20 ℃ when the driving mode is the sport mode.

And S133, determining a temperature change predicted value of the vehicle to be used after the current trip is finished according to the predicted environment temperature and the predicted running time.

The predicted temperature change value of the vehicle to be used after the current trip is finished can be determined according to the predicted environment temperature and the predicted running time based on the relation between the heat dissipation temperature of the battery to the environment and the time and/or the relation between the heat dissipation temperature of the environment to the battery and the time.

And S134, calculating the target temperature of the battery at this time according to the temperature change predicted value and the lowest working temperature of the battery at this time.

For the convenience of understanding of the present embodiment, the calculation process of the current battery target temperature may specifically be as follows:

assuming that the predicted environment temperature is T _ air, the current battery target temperature is T _ BatTar, the predicted driving Time is Time _ road, the current battery minimum working temperature is T _ BatMin, and the predicted environment temperature T _ air is smaller than the first temperature threshold.

Firstly, determining that the current thermal management mode is a heating mode according to the size relationship among the predicted environment temperature T _ air, the first temperature threshold and the second temperature threshold; then, based on the corresponding relation among the driving mode, the thermal management mode and the lowest working temperature of the battery, determining the lowest working temperature T _ BatMin of the battery according to the estimated driving mode and the thermal management mode; then, determining a temperature change predicted value X +1 of the vehicle to be used after the current trip is finished according to the predicted environment temperature T _ air and the predicted running Time Time _ road; finally, calculating the target temperature T _ BatTar of the current battery according to the predicted value X +1 of the temperature change and the lowest working temperature T _ BatMin of the current battery, wherein T _BatTar ＝T _BatMin +X+1。

The calculation process of the predicted value X +1 of the temperature change may specifically be as follows:

setting the temperature difference between the current battery target temperature and the predicted environment temperature to be delta Tbase = T _air -T_BatTar。

Referring to table 1, table 1 shows the heat dissipation temperature of the battery to the environment versus time. Referring to table 2, table 2 shows the heat dissipation temperature from the environment to the battery versus time. It should be noted that the time and energy for every 1 ℃ drop in table 1 and the time and energy for every 1 ℃ rise in table 2 are not actual data, but are merely examples, and these data are actually obtained by testing the battery of the vehicle in the specific implementation, and therefore are not limited herein.

Table 1: temperature and time relationship of battery to ambient heat dissipation

Δ T = battery temperature-ring temperature	1℃	2℃	3℃	……
					Time corresponding to each 1 ℃ drop	t_down1	t_down2	t_down3	……
Energy required for every 1 ℃ drop	Q_down1	Q_down2	Q_down3	……

Table 2: temperature and time relationship between environment and battery heat dissipation

Δ T = ring temperature-battery temperature	1℃	2℃	3℃	……
					Time corresponding to every 1 ℃ rise	t_up1	t_up2	t_up3	……
Energy required for every 1 ℃ rise	Q_up1	Q_up2	Q_up3	……

Since the current thermal management mode is a heating mode, based on table 1, the position of the corresponding Δ T is found according to Δ Tbase. For example, when the temperature is 10 ℃, the corresponding time for every 1 ℃ drop is t _ down10.

Finding a time node X according to the following formula to obtain a predicted value X +1 of the temperature change:

t _down10 +t _down11 +t _down12 +…+t _downX <Time_road

and is

t _down10 +t _down11 +t _down12 +…+t _downX+1 >Time_road。

In the embodiment, the lowest working temperature of the battery is determined according to the corresponding relation, the predicted driving mode and the current thermal management mode, the change value of the battery temperature after the predicted driving time is calculated according to the predicted environment temperature and the predicted driving time, and the target temperature of the battery is calculated according to the lowest temperature of the battery and the change value of the battery temperature for subsequent thermal management of the battery, so that the battery just reaches the lowest working temperature of the battery required for maintaining the performance when the vehicle reaches the predicted destination position, thereby effectively avoiding the situation that the vehicle cannot normally operate due to the fact that the lowest working temperature of the battery cannot be reached in the driving process.

Further, after the step S134, the method further includes the steps of:

s135, when the current thermal management mode is a heating mode, if the target temperature of the current battery is judged to be greater than the preset default battery heating temperature, correcting the target temperature of the current battery to be equal to the default battery heating temperature;

and S136, when the current thermal management mode is a cooling mode, if the current battery target temperature is judged to be greater than the preset default battery cooling temperature, correcting the current battery target temperature to be equal to the default battery cooling temperature.

The default battery heating temperature is the highest temperature of the battery of the electric vehicle in normal and mild driving. In the heating mode, since the battery itself discharges and releases heat as the vehicle travels during the traveling of the electric vehicle, so that the temperature of the battery itself rises again, when the system heats the battery to a particularly high temperature, the driver may increase the accelerator with one foot, so that the battery discharges excessively, and the temperature rises, so as to reach the battery cooling threshold, when the route is particularly long and the traveling time is particularly long, if the target temperature of the battery calculated in step S134 is greater than the default battery heating temperature, the battery of the vehicle is heated according to the target temperature of the battery calculated in step S134, so as to heat the battery to a particularly high temperature, and actually, if the battery temperature at the time of starting the vehicle is too high, the cooling function is likely to be started during the traveling of the vehicle, and energy of the battery is wasted, so that if the target temperature of the battery calculated in step S134 is greater than the default battery heating temperature, the target temperature of the battery is corrected to be equal to the default battery heating temperature, thereby avoiding the problem that the cooling function is started during the traveling of the vehicle due to the excessively high battery temperature at the time of the vehicle when the vehicle is started, and energy of the battery is wasted.

As for the cooling mode, generally, the cooling is performed when the battery is at a very high ambient temperature, and under the condition of a high ambient temperature, the water temperature for cooling the battery is not lower than 10 ℃ at the lowest, at this time, the default cooling temperature of the battery is a temperature which is relatively energy-saving and does not consume much energy (relatively higher), but since the battery itself discharges and releases heat as the automobile travels during the driving of the electric automobile, the temperature of the battery itself is increased again, if the current battery target temperature calculated in step S134 is greater than the default cooling temperature of the battery, cooling the battery of the vehicle according to the current battery target temperature calculated in step S134 may cause that the battery temperature of the vehicle is not low enough when the vehicle is started, so that the cooling function is started due to heat release of the battery itself during the driving of the vehicle, and energy of the battery is wasted, therefore, if the current battery target temperature calculated in step S134 is greater than the default cooling temperature of the battery, the current battery target temperature is corrected to be equal to the default cooling temperature of the battery, thereby preparing for cooling in a long distance.

As one optional embodiment, the step S15 specifically includes:

and S151, acquiring the reserved time.

The reserved time, that is, the time for the user to reserve the car, may be the time for the user to set the reservation information, or may be a car reservation instruction sent by the user terminal, which is not limited herein.

And S152, calculating the time difference between the reserved time and the predicted departure time.

S153, determining the starting time of the thermal management and the starting duration of the thermal management according to the size relation between the time difference and the time threshold.

The time threshold may be set according to actual conditions, and is not limited herein. Step S153 may specifically be that when it is determined that the time difference is greater than the time threshold, it is determined that the current thermal management start time is earlier than the expected departure time by the time threshold, and the current thermal management start time is equal to the time threshold; and when the time difference is judged to be smaller than or equal to the time threshold, determining that the current thermal management starting time is the current time, and the current thermal management starting duration is equal to the time difference between the estimated departure time and the current time.

Optionally, the time threshold includes a first time threshold and a second time threshold, where the first time threshold is greater than the second time threshold, specifically, the first time threshold is 60min, and the second time threshold is 15min. Then, in step S153, it may be specifically determined that the current thermal management start time is earlier than the expected departure time by the first time threshold when it is determined that the time difference is greater than the first time threshold, and the current thermal management start time is equal to the first time threshold; when the time difference is judged to be larger than the second time threshold and smaller than or equal to the first time threshold, determining that the current thermal management starting time is the current time, and the current thermal management starting time is equal to the time difference between the estimated departure time and the current time; and when the time difference is judged to be smaller than or equal to the second time threshold, determining that the thermal management starting time is empty and the thermal management starting time is empty, wherein when the thermal management starting time is empty and the thermal management starting time is empty, the vehicle to be used does not execute thermal management.

In this embodiment, the thermal management starting time and the thermal management starting duration are determined according to the size relationship between the time difference between the reserved time and the expected departure time and the time threshold, and compared with the prior art in which the thermal management starting time is fixed to a certain time before the departure time and the thermal management starting duration is fixed to a certain time, the thermal management starting time and the thermal management starting duration suitable for the current actual situation can be selected according to the time difference between the reserved time and the expected departure time, so that the problem that the normal operation of thermal management is affected because the thermal management starting time is fixed to a certain time before the departure time and the thermal management starting duration is fixed to a certain time in the prior art is solved, and the accurate control of thermal management is facilitated.

As one of the alternative embodiments, referring to fig. 2, the reservation information further includes a passenger compartment target temperature;

As can be appreciated, passenger compartment thermal management includes passenger compartment heating and passenger compartment cooling.

According to the embodiment, the target temperature of the passenger compartment set by the user side is obtained and is used as one of the heat management control information, so that the remote heat management of the passenger compartment is realized while the remote heat management of the battery is realized, a user can enjoy proper temperature just before getting on the vehicle, the use comfort of the vehicle is further improved, the passenger compartment does not need to be heated or cooled from room temperature after the vehicle is started, the energy consumed for the heat management of the passenger compartment after the vehicle is started is reduced, and the cruising ability of the vehicle is further improved.

Further, referring to fig. 2, before the step S16, the method further includes the steps of:

and S21, acquiring the current temperature of the passenger compartment of the vehicle to be used.

Specifically, the current temperature of the passenger compartment of the vehicle to be used may be obtained through an original temperature recognition device in the passenger compartment of the vehicle to be used.

S22, acquiring the required time length for adjusting the temperature of the passenger compartment of the vehicle to be used from the current temperature of the passenger compartment to the target temperature of the passenger compartment.

Specifically, the energy required by the air conditioner to adjust the temperature of the passenger compartment of the vehicle to be used from the current temperature of the passenger compartment to the target temperature of the passenger compartment can be calculated, and the required time duration can be calculated according to the required energy and the power of the heat pump system.

And S23, correcting the thermal management starting time and the thermal management starting time according to the required time.

For example, when the passenger compartment has a cooling or heating requirement, because the maximum power of the compressor in the heat pump system is limited, and the priority of the cooling or heating of the passenger compartment is higher than that of the battery, the time for cooling or heating the battery needs to be advanced to avoid the shortage of the time for thermally managing the battery, so step S23 may specifically be to advance the time for starting the thermal management this time by the required time length, and extend the time for starting the thermal management this time by the required time length.

In the embodiment, the required time for adjusting the temperature of the passenger compartment of the vehicle to be used from the current temperature of the passenger compartment to the target temperature of the passenger compartment is obtained, and the thermal management starting time are corrected according to the required time, so that the problem of insufficient time for thermal management of the battery caused by thermal management of the passenger compartment is solved, and the battery can be heated or cooled to the target temperature of the battery.

As an alternative embodiment, referring to fig. 2, before step S16, the method further includes the steps of:

and S31, acquiring the driving behavior data of the user.

The driving behavior data refers to data that can represent driving habits of the user, such as the number of rapid accelerations of 1000KM recently.

And S32, determining the battery temperature adjustment amount according to the driving behavior data of the user.

It should be noted that, for a user who often drives violently, since acceleration is often performed during driving, the battery is more likely to be heated and overheat is caused, and therefore, the target temperature of the battery needs to be slightly adjusted downward according to the violent habits of the user; and for the user who is used to the mild driving, the heat productivity of the battery is small in the driving process, so that the temperature of the battery can be increased, and the user can take out the heat from the battery to be used for the passenger cabin.

The battery temperature adjustment amount may be set according to actual conditions, and is not limited herein. Taking the driving behavior data as the latest 1000KM rapid acceleration times as an example, the relationship between the battery temperature adjustment amount and the driving behavior data of the user is shown in table 3.

TABLE 3 relationship between the number of most recent 1000KM rapid accelerations and the amount of battery temperature adjustment

Number of rapid accelerations of 1000KM	10	50	100	00	500
						Amount of battery temperature adjustment	+2℃	+1℃	0℃	-2℃	-3℃

And S33, correcting the target temperature of the current battery according to the battery temperature adjustment amount.

According to the embodiment, the battery temperature adjustment amount is determined according to the acquired driving behavior data of the user, and then the target temperature of the battery at this time is corrected according to the battery temperature adjustment amount, so that the heat management effect is more in line with the driving habits of the user.

As one of the alternative embodiments, referring to fig. 3, after step S16, the method further includes the steps of:

s41, when the predicted departure time is reached, judging whether the vehicle to be used enters a running state or not;

s42, when the vehicle to be used is judged not to enter a running state, sending a thermal management delay instruction to a power domain controller of the vehicle to be used through the vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management delay instruction and the thermal management control information; wherein the thermal management delay instruction comprises a thermal management extension time.

The embodiment judges whether the vehicle to be used enters a running state or not when the predicted departure time is reached; when the vehicle to be used is judged not to enter a running state, a thermal management delay instruction is sent to a power domain controller of the vehicle to be used through the vehicle-mounted T-Box, and after the power domain controller receives the thermal management delay instruction, a heat pump system of the vehicle to be used is controlled to carry out thermal management on the vehicle to be used according to thermal management extension time in the thermal management delay instruction, the thermal management mode in the thermal management control information and the target temperature of the battery, so that the thermal management delay operation is realized, the condition that the temperature of a vehicle battery and a passenger compartment is recovered to the temperature before thermal management is carried out due to the fact that a user does not use the vehicle on time can be effectively avoided, and the use comfort of the vehicle and the cruising ability of the vehicle are guaranteed.

As one of the alternative embodiments, the thermal management further comprises electromechanical thermal management. This embodiment also carries out the energy storage to the motor through when to the battery energy storage, compares in only can hold more energy to the battery energy storage alone, conveniently carries out more waste heat recovery in the driving to reduce the energy consumption who uses the air conditioner on the way of driving.

The embodiment of the invention also provides a remote thermal management control device of the electric automobile, which can implement all the processes of the remote thermal management control method of the electric automobile.

The embodiment of the invention provides a remote thermal management control device of an electric automobile, which comprises:

the reserved vehicle using instruction acquisition module 21 is used for acquiring a reserved vehicle using instruction sent by a user side; the reserved vehicle using instruction comprises reservation information set by a user; the reservation information comprises a predicted departure time, a predicted destination position and a predicted driving mode;

a current parking position obtaining module 22, configured to obtain a current parking position of a vehicle to be used;

the data prediction module 23 is configured to determine, based on the reservation information and the current parking point position, a predicted ambient temperature and a predicted travel time of the vehicle to be used in the current trip;

a first control information obtaining module 24, configured to determine, based on the predicted driving mode, the predicted ambient temperature, and the predicted driving time, a current thermal management mode and a current battery target temperature;

a second control information obtaining module 25, configured to determine the current thermal management starting time and the current thermal management starting duration based on the predicted departure time;

the thermal management control module 26 is configured to send thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management includes battery thermal management.

The principle of the electric vehicle remote thermal management control device for realizing the electric vehicle remote thermal management is the same as that of the method embodiment, and the description is omitted here.

The remote thermal management control device for the electric vehicle, provided by the embodiment of the invention, acquires a reserved vehicle instruction which is sent by a user side and comprises reserved information such as a predicted departure time, a predicted destination position and a predicted driving mode; determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the acquired current parking position, wherein the reservation information comprises predicted departure time, predicted destination position and predicted driving mode; determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; determining the starting time and the starting duration of the thermal management based on the estimated starting time; and sending the thermal management control information comprising the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information. When the embodiment of the invention is used for carrying out the remote thermal management control on the electric automobile, the target temperature of the battery for the current thermal management is determined based on the predicted driving mode, the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey, so that the situation that the battery is heated or cooled too much can be effectively avoided, the comfort of the vehicle in use can be improved, the cruising ability of the vehicle is improved, and meanwhile, unnecessary energy waste is reduced.

As an optional embodiment, the first control information obtaining module specifically includes:

the temperature change predicted value determining unit is used for determining the temperature change predicted value of the vehicle to be used after the current trip is completed according to the predicted environment temperature and the predicted running time;

As an optional embodiment, the second control information obtaining module specifically includes:

a reserved time acquisition unit for acquiring a reserved time;

As one of the alternative embodiments, the reservation information further includes a passenger compartment target temperature;

Further, the remote thermal management control device for the electric vehicle further comprises a first control information correction module;

the first control information correction module specifically includes:

the passenger compartment current temperature acquisition unit is used for acquiring the passenger compartment current temperature of the vehicle to be used;

As one optional embodiment, the electric vehicle remote thermal management control device further comprises a second control information modification module;

the second control information correction module specifically includes:

As one optional embodiment, the electric vehicle remote thermal management control device further comprises a thermal management delay control module;

the thermal management delay control module specifically comprises:

The remote thermal management control system for the electric automobile comprises a user side 1, a cloud platform 2, an on-board T-Box3 of a vehicle to be used, a power domain controller 4 and a heat pump system 5; wherein the content of the first and second substances,

the user side 1 is used for acquiring reservation information set by a user, generating a reservation car using instruction according to the reservation information, and sending the reservation car using instruction to the cloud platform 2; wherein the reservation information includes a predicted departure time, a predicted destination location, and a predicted driving pattern;

the cloud platform 2 comprises the electric vehicle remote thermal management control device in any one of the above device embodiments.

The principle of the electric vehicle remote thermal management control device applied to the electric vehicle remote thermal management control system for realizing the electric vehicle remote thermal management is the same as that of the method embodiment, and the description is omitted here.

The remote thermal management control system for the electric vehicle, provided by the embodiment of the invention, acquires a reserved vehicle instruction which is sent by a user side and comprises reserved information such as a predicted departure time, a predicted destination position and a predicted driving mode; determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the acquired current parking position, wherein the reservation information comprises predicted departure time, predicted destination position and predicted driving mode; determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; determining the starting time of the thermal management and the starting duration of the thermal management based on the estimated starting time; and sending the thermal management control information comprising the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information. When the embodiment of the invention is used for carrying out the remote thermal management control on the electric automobile, the target temperature of the battery for the current thermal management is determined based on the predicted driving mode, the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey, so that the situation that the battery is heated or cooled too much can be effectively avoided, the comfort of the vehicle in use can be improved, the cruising ability of the vehicle is improved, and meanwhile, unnecessary energy waste is reduced.

As one of the alternative embodiments, referring to fig. 5, the remote thermal management control system for the electric vehicle further includes a battery management system 6 of the vehicle to be used; wherein the content of the first and second substances,

the battery management system 6 is configured to generate connection state confirmation information and send the connection state confirmation information to the user side 1 when detecting that the vehicle to be used and the charging device are in a normal connection state;

the user side 1 specifically includes:

wherein the reservation conditions include:

the current gear of the vehicle to be used is a P gear; and (c) a second step of,

The electric vehicle remote thermal management control device provided by the embodiment of the invention comprises a processor 31, a memory 32 and a computer program which is stored in the memory 32 and configured to be executed by the processor 31, wherein when the processor 31 executes the computer program, the electric vehicle remote thermal management control method according to any one of the embodiments is realized.

When the processor 31 executes the computer program, the steps in the above embodiment of the electric vehicle remote thermal management control method, for example, all the steps of the electric vehicle remote thermal management control method shown in fig. 1, are implemented. Alternatively, the processor 31, when executing the computer program, implements the functions of the modules/units in the above-described embodiment of the remote thermal management control device for the electric vehicle, for example, the functions of the modules of the remote thermal management control device for the electric vehicle shown in fig. 4.

Illustratively, the computer program may be divided into one or more modules, which are stored in the memory 32 and executed by the processor 31 to accomplish the present invention. The one or more modules may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used for describing the execution process of the computer program in the electric vehicle remote thermal management control device. For example, the computer program may be divided into a reserved vehicle instruction obtaining module, a current parking point position obtaining module, a data prediction module, a first control information obtaining module, a second control information obtaining module and a thermal management control module, where the specific functions of the modules are as follows: the reserved vehicle using instruction acquisition module is used for acquiring a reserved vehicle using instruction sent by a user side; the reserved vehicle using instruction comprises reservation information set by a user; the reservation information comprises a predicted departure time, a predicted destination position and a predicted driving mode; the current parking position acquisition module is used for acquiring the current parking position of the vehicle to be used; the data prediction module is used for determining the predicted environment temperature and the predicted running time of the vehicle to be used in the current journey based on the reservation information and the current parking point position; the first control information acquisition module is used for determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration; the second control information acquisition module is used for determining the starting time and the starting duration of the thermal management based on the estimated starting time; the thermal management control module is used for sending thermal management control information to a power domain controller of the vehicle to be used through the vehicle-mounted T-B ox, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management includes battery thermal management.

The electric vehicle remote thermal management control device can be a desktop computer, a notebook computer, a palm computer, a cloud server and other computing equipment. The electric vehicle remote thermal management control device can include, but is not limited to, a processor 31 and a memory 32. It will be understood by those skilled in the art that the schematic diagram is merely an example of an electric vehicle remote thermal management control device, and does not constitute a limitation of the electric vehicle remote thermal management control device, and may include more or less components than those shown, or some components in combination, or different components, for example, the electric vehicle remote thermal management control device may further include an input-output device, a network access device, a bus, etc.

The Processor 31 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, and the processor 31 is a control center of the electric vehicle remote thermal management control device, and various interfaces and lines are used to connect various parts of the whole electric vehicle remote thermal management control device.

The memory 32 can be used to store the computer programs and/or modules, and the processor 31 implements various functions of the remote thermal management control device of the electric vehicle by running or executing the computer programs and/or modules stored in the memory 32 and calling the data stored in the memory 32. The memory 32 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phone book, etc.) created according to the use of the electric vehicle remote thermal management control apparatus, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.

The module/unit integrated with the electric vehicle remote thermal management control device can be stored in a computer readable storage medium if the module/unit is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.

It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A remote thermal management control method for an electric vehicle is characterized by comprising the following steps:

acquiring the current parking spot position of a vehicle to be used;

sending thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to carry out thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management comprises battery thermal management;

the determining the current thermal management mode and the current battery target temperature based on the predicted driving mode, the predicted environment temperature and the predicted driving duration specifically includes:

determining the lowest working temperature of the battery according to the estimated driving mode and the thermal management mode based on the corresponding relation among the driving mode, the thermal management mode and the lowest working temperature of the battery;

determining a temperature change predicted value after the vehicle to be used finishes the current trip according to the predicted environment temperature and the predicted running duration;

2. The method for remote thermal management control of the electric vehicle according to claim 1, wherein the determining the current thermal management starting time and the current thermal management starting duration based on the estimated departure time specifically includes:

acquiring the appointment time;

calculating a time difference between the appointment time and the expected departure time;

3. The electric vehicle remote thermal management control method according to claim 1, wherein the reservation information further includes a passenger compartment target temperature;

4. The remote thermal management control method for the electric automobile according to claim 3, wherein before sending the thermal management control information to the power domain controller of the vehicle to be used through the vehicle-mounted T-Box, the method further comprises the following steps:

5. The remote thermal management control method for the electric automobile according to claim 1, wherein before sending the thermal management control information to the power domain controller of the vehicle to be used through the vehicle-mounted T-Box, the method further comprises the following steps:

acquiring driving behavior data of the user;

6. The remote thermal management control method for the electric vehicle according to claim 1, wherein the step of sending the thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information further comprises the steps of:

7. An electric automobile remote thermal management control device, characterized by comprising:

the thermal management control module is used for sending thermal management control information to a power domain controller of the vehicle to be used through a vehicle-mounted T-Box, so that the power domain controller controls a heat pump system of the vehicle to be used to perform thermal management on the vehicle to be used according to the thermal management control information; the thermal management control information comprises the thermal management starting time, the thermal management starting duration, the thermal management mode and the battery target temperature; the thermal management comprises battery thermal management;

the first control information obtaining module specifically includes:

8. The remote thermal management control device for the electric vehicle according to claim 7, wherein the second control information obtaining module specifically comprises:

a reserved time acquisition unit for acquiring a reserved time;

9. The electric vehicle remote thermal management control apparatus of claim 7, wherein the appointment information further comprises a passenger compartment target temperature;

10. The remote thermal management control device for the electric vehicle according to claim 9, further comprising a first control information modification module;

the first control information correction module specifically includes:

11. The remote thermal management control device for the electric vehicle according to claim 7, further comprising a second control information modification module;

the second control information correction module specifically includes:

12. The electric vehicle remote thermal management control device of claim 7, further comprising a thermal management delay control module;

the thermal management delay control module specifically comprises:

13. The remote thermal management control system of the electric automobile is characterized by comprising a user side, a cloud platform, an on-board T-Box of a vehicle to be used, a power domain controller and a heat pump system; wherein the content of the first and second substances,

the user side is used for acquiring reservation information set by a user, generating a reservation vehicle using instruction according to the reservation information and sending the reservation vehicle using instruction to the cloud platform; wherein the reservation information comprises a predicted departure time, a predicted destination location and a predicted driving mode;

the cloud platform comprising the electric vehicle remote thermal management control apparatus of any of claims 7-12.

14. The remote thermal management control system for the electric vehicle according to claim 13, further comprising a battery management system of the vehicle to be used; wherein the content of the first and second substances,

the user side specifically comprises:

wherein the reservation conditions include:

15. An electric vehicle remote thermal management control apparatus, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the electric vehicle remote thermal management control method according to any one of claims 1 to 6 when executing the computer program.

16. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program runs, the computer-readable storage medium is controlled to execute a method according to any one of claims 1 to 6, according to the device where the computer-readable storage medium is located.