Battery pack heating control method, system, electronic device, vehicle and medium

Abstract

The present invention discloses a heating control method for a battery pack, a thermal management system, an electronic device, a vehicle, and a storage medium, wherein the heating control method for a battery pack includes: determining that the battery pack is in a working condition that requires heating; controlling the damping drive motor in the vehicle suspension system for adjusting the height of the shock absorber to stall to generate heat, and the heat generated by the stalling of the damping drive motor is used to heat the battery pack. The method and system of the present invention can provide more heat energy, generate heat quickly, do not waste the energy of the battery itself, and can heat the battery pack quickly and efficiently.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a heating control method for a battery pack, a thermal management system, a vehicle, an electronic device, and a non-volatile readable storage medium. Background Art

[0002] At present, the heating technologies for battery packs mainly include: PTC heating, battery self-heating, vehicle air-conditioning heating, vehicle drive motor stall heat generation heating, etc. Among them, PTC heating and battery self-heating technologies need to use the battery itself as a heating source to convert the battery's electrical energy into thermal energy, and then heat the battery itself, which will waste the battery's energy, and the heating speed is slow and the efficiency is low. The heating performance of the vehicle air-conditioning heating technology is not outstanding, the heating speed is slow, and the efficiency is low. In addition, the vehicle drive motor heating solution is subject to power limitations, especially in low temperature environments, it cannot meet the battery pack heating needs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first object of the present invention is to provide a heating control method for a battery pack, which can provide more heat energy, generate heat quickly, do not waste the energy of the battery itself, and can heat the battery pack quickly and efficiently.

[0004] A second objective of the present invention is to provide a thermal management system.

[0005] A third objective of the present invention is to provide an electronic device.

[0006] A fourth object of the present invention is to provide a vehicle.

[0007] A fifth object of the present invention is to provide a non-volatile readable storage medium.

[0008] In order to achieve the above-mentioned purpose, the heating control method of the battery pack of the first aspect embodiment of the present invention includes: determining that the battery pack is in a working condition that requires heating; controlling the shock absorber drive motor in the vehicle suspension system for driving the shock absorber to be locked to generate heat, and the heat generated by the shock absorber drive motor is used to heat the battery pack.

[0009] According to the heating control method of the battery pack in an embodiment of the present invention, the shock absorbing drive motor of the suspension system is controlled to be blocked. The shock absorbing drive motor has high power and can quickly generate a large amount of heat at a fast heat generation speed, so that the battery pack can be heated quickly and efficiently without wasting the energy of the battery pack itself.

[0010] In some embodiments, the heating control method of the battery pack further includes: when the battery pack is in a working condition requiring heating, heating the battery pack by at least one of a vehicle drive motor stall, a battery self-heating system, an on-board air conditioning system, and a PTC heater.

[0011] In some embodiments, the heating control method of the battery pack further includes: before controlling the damping drive motor to be locked, determining whether the damping drive motor meets the locked-rotor heating condition according to the motor state of the damping drive motor.

[0012] In some embodiments, the battery pack being in a condition requiring heating includes the battery pack being in a cold start condition or a low temperature charging condition.

[0013] In some embodiments, the damped drive motor is a linear motor.

[0014] In order to achieve the above-mentioned objectives, the thermal management system of the second aspect of the embodiment of the present invention includes: a shock absorbing drive motor in a vehicle suspension system, wherein the shock absorbing drive motor is used to adjust the height of the shock absorber in the vehicle suspension system; and a thermal management controller, wherein the controller is connected to the shock absorbing drive motor and is used to execute the heating control method of the battery pack.

[0015] According to the thermal management system of the embodiment of the present invention, the shock-absorbing drive motor of the vehicle suspension system is used to control the shock-absorbing drive motor to be locked when the battery pack needs to be heated to achieve heating of the battery pack. The shock-absorbing drive motor has high power and can quickly generate a large amount of heat at a fast heat generation speed, so that the battery can be heated quickly and efficiently without wasting the energy of the battery pack itself. This can solve the problems of slow preheating, high energy consumption and high cost of the current electric vehicle power battery.

[0016] In some embodiments, the thermal management system also includes at least one of a vehicle drive motor, a battery self-heating system, an on-board air-conditioning system, and a PTC heater, and the vehicle drive motor, the battery self-heating system, the on-board air-conditioning system, and the PTC heater are respectively connected to the thermal management controller.

[0017] In some embodiments, the damped drive motor is a linear motor.

[0018] In order to achieve the above-mentioned purpose, the third aspect of the present invention proposes an electronic device, comprising: at least one processor; a memory communicatively connected to the at least one processor; the memory stores a computer program executable by the at least one processor, and the at least one processor implements the heating control method of the battery pack when executing the computer program.

[0019] In an electronic device according to an embodiment of the present invention, at least one processor executes the battery heating control method of the above embodiment, and the shock-absorbing drive motor has high power and can quickly generate a large amount of heat at a fast speed, so that the battery can be heated quickly and efficiently without wasting the energy of the battery pack itself.

[0020] In order to achieve the above-mentioned purpose, a fourth aspect of the present invention proposes a vehicle, which includes: a battery pack and a suspension system, the suspension system includes a shock absorber and a shock absorbing drive motor, the shock absorber is connected to the shock absorbing drive motor; the electronic device of the above-mentioned aspect embodiment or the thermal management system described in the above embodiment.

[0021] In the vehicle according to the embodiment of the present invention, the battery pack is heated by stalling the damping drive motor. The damping drive motor has high power and can quickly generate a large amount of heat at a fast speed, so that the battery can be heated quickly and efficiently without wasting the energy of the battery pack itself.

[0022] In order to achieve the above-mentioned purpose, a fifth aspect of the present invention proposes a non-volatile readable storage medium having a computer program stored thereon, characterized in that the battery pack heating control method is implemented when the computer program is executed.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a flow chart of a heating control method for a battery pack according to an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of realizing battery heating control by combining multiple systems according to an embodiment of the present invention;

[0027] Figure 3 is a block diagram of a thermal management system according to one embodiment of the present invention;

[0028] Figure 4 is a block diagram of a thermal management system according to one embodiment of the present invention;

[0029] Figure 5 is a block diagram of an electronic device according to an embodiment of the present invention;

[0030] Figure 6 is a block diagram of a vehicle according to one embodiment of the present invention.

[0031] Reference numerals:

[0032] Vehicle 1;

[0033] Electronic device 10; Thermal management system 100;

[0034] Battery pack 11, suspension system 12;

[0035] Shock absorber 121 ; shock absorbing drive motor 101 ; thermal management controller 102 ; vehicle drive motor 103 , battery self-heating system 104 , vehicle air conditioning system 105 , PTC heater 106 ; processor 107 ; memory 108 . DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0037] Reference below Figure 1 and Figure 2 A battery heating control method according to an embodiment of the present invention is described.

[0038] Figure 1 is a flow chart of a battery heating control method according to an embodiment of the present invention. Figure 1 As shown, the battery heating control method includes steps S1 and S2.

[0039] S1, determining that the battery pack is in a condition that requires heating.

[0040] Specifically, battery packs, such as the power batteries of vehicles, are very sensitive to temperature, especially low temperatures. For example, when charging in winter, the power batteries need to be preheated first, usually to above 25 degrees, otherwise the charging speed will be seriously affected. Another example is when starting a cold car in winter, if the battery is not heated, the power consumption of the vehicle will increase significantly, resulting in a significant reduction in cruising range.

[0041] In some embodiments, the battery pack is in a condition that requires heating, including the battery pack being in a cold start condition or a low temperature charging condition, requiring the battery pack to be preheated, or other conditions where the battery pack has a heating requirement.

[0042] S2, controls the shock absorber drive motor used to adjust the height of the shock absorber in the vehicle suspension system to stall to generate heat. The heat generated by the stalled shock absorber drive motor is used to heat the battery pack.

[0043] Specifically, the suspension system is a device that elastically connects the frame and axle of a vehicle, which supports and absorbs shock to the vehicle body. It includes supporting elements and shock absorbers for supporting the frame, thereby cushioning the impact force transmitted to the frame or body due to uneven roads and attenuating the vibration caused thereby to ensure smooth driving of the vehicle.

[0044] In some vehicles, the shock absorber uses hydraulic or pneumatic to drive the shock absorber to move up and down to adjust its height. In some vehicles, the shock absorber also uses electronic control. The size of the liquid electric control valve port is controlled to adjust the circulating liquid to change the up and down movement of the shock absorber to adjust its height. Even if the size of the electric control valve port is controlled by a motor, the power of the valve port driving motor used is very small and has no utilization value.

[0045] In the embodiment of the present invention, the shock absorbing part is directly driven up and down by a motor in the vehicle suspension system to offset the suspension fluctuation caused by the ground fluctuation, so as to achieve the shock absorbing effect of the shock absorber. The motor is the shock absorbing drive motor in the present application. Since the suspension supports the vehicle body, the shock absorbing effect is achieved, and the power of the shock absorbing drive motor is also relatively large.

[0046] In the embodiment, the shock absorbing drive motor adopts a linear motor, and the linear motor drives the shock absorbing member to move up and down, which can offset the floating of the vehicle suspension system caused by the ups and downs of the ground and achieve the effect of shock absorption. In this application, when the battery pack needs to be preheated, the battery pack can be heated by controlling the linear motor to generate heat by stalling, which is more efficient and faster.

[0047] Furthermore, in an embodiment, before controlling the damping drive motor to stall, it can be determined that the damping drive motor meets the stall heating condition according to the motor state of the damping drive motor. For example, when the vehicle is parked, the damping drive motor has no output, that is, the damping drive motor is not working, and the state parameters such as current and voltage are zero, etc., which means that the stall heating condition is met. For example, when the vehicle is powered on and started, especially in low temperature weather, that is, when the battery is cold started, the battery pack can be preheated by controlling the damping drive motor to stall.

[0048] In the embodiment of the present invention, the damping drive motor is used in the battery pack heating solution. When the battery pack needs to be heated, the damping drive motor is controlled to be stalled. Unlike the vehicle drive motor that drives the vehicle, which has limited power, the damping drive motor can have greater power. Therefore, the stalling of the damping drive motor can quickly generate a large amount of heat, thereby increasing the speed and efficiency of battery heating. In addition, the stalling of the damping drive motor to generate heat to heat the battery pack does not consume the energy of the battery pack itself.

[0049] Furthermore, according to the heating requirements of the battery pack or the need to increase the temperature of the battery pack more quickly, the damping drive motor stalling solution can be combined with the vehicle's existing battery heating solution to further improve the preheating or heating speed and efficiency of the battery pack.

[0050] For example, in some embodiments, when the battery pack is in a condition that requires heating, the battery pack can also be heated by at least one of the vehicle drive motor stall, the battery self-heating system, the vehicle air conditioning system, and the PTC heater. It can be understood that two heating methods can be combined or three or four heating methods can be combined to improve the speed and efficiency of battery pack heating.

[0051] For example, the shock-absorbing drive motor of the vehicle suspension system, such as the linear motor, will generate a lot of heat when the motor is blocked, and this heat can be effectively used for battery heating. In the working conditions where the battery pack needs to be heated, such as cold start and low-temperature charging, the suspension linear motor and vehicle drive motor are blocked through software strategy, and supplemented by battery self-heating (or heat pump air conditioning technology), so that the battery can be heated more quickly and efficiently.

[0052] Figure 2 is a schematic diagram of heating control of a battery pack according to an embodiment of the present invention, such as Figure 2 As shown, the thermal management control system monitors the status of the linear motor, drive motor, battery self-heating system or vehicle air conditioning system in real time. When the battery needs to be heated, the thermal management control system issues a stall control command to the linear motor and drive motor, and simultaneously issues a start control command to the battery self-heating system or vehicle air conditioning system, so that the three systems work together to heat the battery.

[0053] In addition, for vehicles with a PTC heater, the PTC heater can also be controlled to heat the battery pack according to the heating requirements of the battery pack.

[0054] Among them, the current status of each system can be determined based on the status information of each system. The linear motor stall is more suitable for when the vehicle is parked, so it will not affect the shock absorption effect when the vehicle is driving. Of course, if there is a need to heat the battery pack when it is driving, the battery pack can be heated by stalling the shock-absorbing linear motor at an appropriate time. The vehicle drive motor is more suitable for when the vehicle is parked. Of course, when the drive motor has excess power output while driving, it can also be used to heat the battery pack. The battery pack self-heating system and PTC heating are not limited to the state of the vehicle.

[0055] Figure 2The figure is only an example of the present invention. According to different vehicle models, different battery sizes, and different heating requirements for the battery, the linear motor stall can be freely combined with the drive motor stall, battery self-heating, vehicle air conditioning system, PTC heating and other battery preheating technologies to form more heating solutions.

[0056] In summary, linear motor stalling technology can be added to the vehicle's existing heating technology to make the battery heating faster and more efficient.

[0057] A second aspect of the present invention further provides a thermal management system.

[0058] Figure 3 is a block diagram of a thermal management system according to an embodiment of the present invention, such as Figure 3 As shown, the thermal management system 100 includes a damping drive motor 101 and a thermal management controller 102 .

[0059] The shock absorbing drive motor 101 is a motor used to adjust the height of the shock absorber in the vehicle suspension system. The shock absorbing drive motor 101 has a large power and can quickly generate a large amount of heat when it is stalled. The heat can be used to heat the battery pack.

[0060] The thermal management system 102 is connected to the damping drive motor 101, and is used to control the damping drive motor 101 according to the heating method of the battery pack in the first embodiment above, so as to achieve heating of the battery pack. For example, when the vehicle starts, the battery pack needs to be preheated, and the damping drive motor 101 can be controlled to be locked to generate heat, and the heat can directly act on the battery pack or be transported to the battery pack through a pipeline to achieve heating.

[0061] According to the thermal management system 100 of the embodiment of the present invention, the damping drive motor 101 of the vehicle suspension system is used to control the damping drive motor 101 to be locked when the battery pack needs to be heated to achieve heating of the battery pack. The damping drive motor 101 has high power and can quickly generate a large amount of heat at a fast heat generation speed, so that the battery can be quickly and efficiently heated without wasting the energy of the battery pack itself. The current problems of slow preheating, high energy consumption and high cost of electric vehicle power batteries can be solved.

[0062] In some embodiments, the shock absorbing drive motor 101 may be a linear motor, and the vehicle suspension system uses the linear motor to adjust the up and down height of the shock absorbing component.

[0063] Furthermore, in some embodiments, Figure 4As shown, the thermal management system 100 also includes at least one of a vehicle drive motor 103, a battery self-heating system 104, an onboard air conditioning system 105, and a PTC heater 106. The vehicle drive motor 103, the battery self-heating system 104, the onboard air conditioning system 105, and the PTC heater 106 are respectively connected to the thermal management controller 102. According to the heating requirements of the battery pack or the need to increase the temperature of the battery pack more quickly, the damping drive motor stalling solution can be combined with other battery heating solutions of the vehicle to further improve the preheating or heating speed and efficiency of the battery pack.

[0064] The third aspect of the present invention further provides an electronic device, such as Figure 5 As shown, the electronic device 10 includes at least one processor 107 and a memory 108 communicatively connected to the at least one processor 107 .

[0065] The memory 108 stores a computer program that can be executed by at least one processor 107 . When the at least one processor 107 executes the computer program, the heating control method of the battery pack in the above embodiment is implemented.

[0066] The electronic device 10 may be a controller or a terminal device or a vehicle-mounted terminal for implementing battery thermal management, which is not limited here.

[0067] The memory 108 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 107 executes functional applications and data processing by running the software programs, instructions and modules stored in the memory 108, that is, implementing the heating control method of the battery pack in the above method embodiment.

[0068] The memory 108 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 108 may include a high-speed random access memory and may also include a non-volatile memory.

[0069] According to the electronic device 10 of the embodiment of the present invention, at least one processor 107 executes the heating control method of the battery pack of the above embodiment. The shock-absorbing drive motor has high power and can quickly generate a large amount of heat at a fast heat generation speed, so that the battery can be heated quickly and efficiently without wasting the energy of the battery pack itself.

[0070] Based on the thermal management system of the above embodiment, a third embodiment of the present invention proposes a vehicle.

[0071] like Figure 6As shown, the vehicle 1 includes a battery pack 11 , a suspension system 12 and the thermal management system 100 of the above embodiment. The suspension system 12 includes a shock absorber 121 and a shock absorbing drive motor 101 . The shock absorber 121 is connected to the shock absorbing drive motor 101 .

[0072] In the thermal management system 100, when the battery pack 11 needs to be heated, such as in a cold start condition or a low-temperature charging condition, the thermal management controller is used to control the damping drive motor 101 to be blocked, which can quickly generate a large amount of heat, achieve rapid heating of the battery pack, and increase the heating speed.

[0073] In some embodiments, the damping drive motor 101 may be a linear motor or other suitable drive motors.

[0074] In addition, according to the heating requirements of the battery pack 11, the shock absorber drive motor blocking scheme can also be combined with other battery pack preheating schemes of the vehicle, such as combining at least one of the vehicle drive motor 103, the battery self-heating system 104, the vehicle air conditioning system 105 and the PTC heater 106, which can further improve the preheating or heating speed and efficiency of the battery pack 11.

[0075] In other embodiments, the vehicle 1 of the embodiment of the present invention includes the electronic device 10 of the above embodiment, and the electronic device 10 includes at least one processor 107 and a memory 108. When the at least one processor 107 executes the computer program in the memory 108, the heating control method of the battery pack of the above embodiment can be implemented.

[0076] According to the vehicle 1 of the embodiment of the present invention, the battery pack is heated by stalling the shock-absorbing drive motor 101. The shock-absorbing drive motor 101 has high power and can quickly generate a large amount of heat at a fast speed, so that the battery can be heated quickly and efficiently without wasting the energy of the battery pack itself.

[0077] The fifth aspect of the present invention further provides a non-volatile readable storage medium having a computer program stored thereon, which implements the battery heating control method of the above embodiment when the computer program is executed.

[0078] In an embodiment, the storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0080] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heating control method for a battery pack, characterized in that: include: Make sure the battery pack is in a condition that requires heating; A shock absorber drive motor for adjusting the height of a shock absorber in a vehicle suspension system is controlled to be stalled to generate heat, and the heat generated by the stalled shock absorber drive motor is used to heat the battery pack.

2. The heating control method of the battery pack according to claim 1, characterized in that: The heating control method of the battery pack further includes: When the battery pack is in a condition requiring heating, the battery pack is heated by at least one of a vehicle drive motor stall, a battery self-heating system, an onboard air conditioning system, and a PTC heater.

3. The heating control method of the battery pack according to claim 1, characterized in that: The battery pack heating control method further includes: Before controlling the damping drive motor to be locked, it is determined that the damping drive motor meets a locked-rotor heating condition according to a motor state of the damping drive motor.

4. The heating control method of the battery pack according to claim 1 or 2, characterized in that: The battery pack being in a condition requiring heating includes the battery pack being in a cold start condition or a low temperature charging condition.

5. The heating control method of the battery pack according to claim 1, characterized in that: The damping drive motor is a linear motor.

6. A thermal management system, characterized in that: include: A shock-absorbing drive motor of a vehicle suspension system, wherein the shock-absorbing drive motor is used to adjust the height of a shock absorber in the vehicle suspension system; A thermal management controller, the controller is connected to the damping drive motor, and is used to execute the heating control method of the battery pack according to any one of claims 1 to 5.

7. The thermal management system according to claim 6, characterized in that: The thermal management system also includes at least one of a vehicle drive motor, a battery self-heating system, an on-board air conditioning system and a PTC heater, and the vehicle drive motor, the battery self-heating system, the on-board air conditioning system and the PTC heater are respectively connected to the thermal management controller.

8. The thermal management system according to claim 6, characterized in that: The damping drive motor is a linear motor.

9. An electronic device, characterized in that: include: at least one processor; a memory communicatively coupled to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, and when the at least one processor executes the computer program, the heating control method for the battery pack according to any one of claims 1 to 5 is implemented.

10. A vehicle, characterized in that: The vehicle comprises: A battery pack and a suspension system, wherein the suspension system includes a shock absorber and a shock absorbing drive motor, wherein the shock absorber is connected to the shock absorbing drive motor; The vehicle further comprises the electronic device of claim 9 or the thermal management system of any one of claims 6-8.

11. A non-volatile readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the heating control method for the battery pack according to any one of claims 1 to 5 is implemented.

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