Electric vehicle battery pack cooling control method, device, equipment and storage medium

Abstract

The present invention belongs to the technical field of electric vehicles and discloses a method, device, equipment and storage medium for controlling the cooling of an electric vehicle battery pack. The method comprises: obtaining the maximum temperature of the charging battery pack when the vehicle is charging; turning on the battery pack cooling when the maximum temperature of the charging battery pack meets the charging cooling condition; obtaining the maximum temperature of the driving battery pack when the vehicle is fully charged and starts driving; turning on the battery pack cooling when the maximum temperature of the driving battery pack meets the driving cooling condition. By the above method, the battery pack cooling intervals during charging and driving are distinguished, so that the battery pack is at a lower temperature after charging is completed, reducing the driving energy consumption when driving immediately after charging, improving the mileage of pure electric vehicles, and preventing the battery pack cooling intervention triggered by driving immediately after charging, which leads to increased driving energy consumption, thereby improving the mileage of electric vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a cooling control method, device, equipment and storage medium for an electric vehicle battery pack. Background Art

[0002] Pure electric vehicles typically have a battery pack cooling function to prevent overheating, which increases energy consumption and creates safety hazards. However, users often drive immediately after charging. However, the battery pack temperature is relatively high after charging. Driving immediately after charging causes the battery pack cooling function to kick in, increasing the pure electric vehicle's energy consumption and shortening its range, leading to "range anxiety."

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of the present invention is to provide a cooling control method, device, equipment and storage medium for an electric vehicle battery pack, aiming to solve the technical problem that the cooling function of the battery pack after charging in the prior art increases the energy consumption of the vehicle.

[0005] To achieve the above object, the present invention provides a cooling control method for an electric vehicle battery pack, the method comprising the following steps:

[0006] When the vehicle is charging, obtain the maximum temperature of the charging battery pack;

[0007] When the maximum temperature of the rechargeable battery pack meets the charging cooling condition, starting the battery pack cooling;

[0008] When the vehicle is fully charged and starts driving, obtain the maximum temperature of the driving battery pack;

[0009] When the maximum temperature of the driving battery pack meets the driving cooling condition, the battery pack cooling is turned on.

[0010] Optionally, when the maximum temperature of the rechargeable battery pack meets the charging cooling condition, starting the battery pack cooling includes:

[0011] Comparing the maximum temperature of the rechargeable battery pack with a first temperature threshold;

[0012] When the comparison result shows that the maximum temperature of the rechargeable battery pack is greater than the first temperature threshold, it is determined that the charging cooling condition is met and the battery pack cooling is started.

[0013] Optionally, when the maximum temperature of the rechargeable battery pack meets the charging cooling condition, after starting the battery pack cooling, the method further includes:

[0014] Collect and update the maximum temperature of the rechargeable battery pack;

[0015] comparing the updated maximum temperature of the rechargeable battery pack with a second temperature threshold;

[0016] When the updated maximum temperature of the rechargeable battery pack is less than the second temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling is turned off.

[0017] Optionally, when the maximum temperature of the driving battery pack meets the driving cooling condition, starting the battery pack cooling includes:

[0018] Comparing the maximum temperature of the driving battery pack with a third temperature threshold;

[0019] When the comparison result shows that the maximum temperature of the driving battery pack is greater than the third temperature threshold, it is determined that the driving cooling condition is met and the battery pack cooling is turned on.

[0020] Optionally, when the maximum temperature of the driving battery pack meets the driving cooling condition, after starting the battery pack cooling, the method further includes:

[0021] Collect and update the maximum temperature of the driving battery pack;

[0022] Comparing the updated maximum temperature of the driving battery pack with the fourth temperature threshold;

[0023] When the updated maximum temperature of the driving battery pack is less than the fourth temperature threshold, it is determined that the driving cooling stop condition is met, and the battery pack cooling is turned off.

[0024] Optionally, when the maximum temperature of the driving battery pack meets the driving cooling condition, after starting the battery pack cooling, the method further includes:

[0025] Connecting the vehicle to a test device and configuring and setting threshold information through the test device;

[0026] Obtaining charging operation parameters when charging the vehicle through the test equipment, and driving operation parameters when starting the vehicle and driving in parallel through the test equipment;

[0027] Determining battery pack cooling function operation information and driving energy consumption information based on the charging operation parameter, the driving operation parameter, and the set threshold information;

[0028] A vehicle test result is determined based on the battery pack cooling function operation information and the driving energy consumption information.

[0029] Optionally, the determining the battery pack cooling function operation information and the driving energy consumption information according to the charging operation parameter, the driving operation parameter, and the set threshold information includes:

[0030] Determining battery pack temperature information according to the charging operation parameters and the driving operation parameters;

[0031] Determining battery pack cooling function operation information according to the battery pack temperature information and the set threshold information;

[0032] Driving energy consumption information is determined according to the driving operation parameters.

[0033] In addition, to achieve the above-mentioned purpose, the present invention also proposes a cooling control device for an electric vehicle battery pack, the cooling control device for an electric vehicle battery pack comprising:

[0034] Charging temperature measurement module, used to obtain the maximum temperature of the rechargeable battery pack when the vehicle is charging;

[0035] A charging cooling module, configured to start cooling the battery pack when the maximum temperature of the rechargeable battery pack meets the charging cooling conditions;

[0036] The driving temperature measurement module is used to obtain the maximum temperature of the driving battery pack when the vehicle is fully charged and starts driving;

[0037] The driving cooling module is used to start battery pack cooling when the maximum temperature of the driving battery pack meets the driving cooling conditions.

[0038] In addition, to achieve the above-mentioned purpose, the present invention also proposes an electric vehicle battery pack cooling control device, which includes: a memory, a processor, and an electric vehicle battery pack cooling control program stored on the memory and runnable on the processor, and the electric vehicle battery pack cooling control program is configured to implement the steps of the electric vehicle battery pack cooling control method as described above.

[0039] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which an electric vehicle battery pack cooling control program is stored. When the electric vehicle battery pack cooling control program is executed by a processor, the steps of the electric vehicle battery pack cooling control method as described above are implemented.

[0040] The present invention obtains the maximum temperature of the charging battery pack while the vehicle is charging; activates battery pack cooling when the maximum temperature meets the charging cooling conditions; obtains the maximum temperature of the driving battery pack when the vehicle is fully charged and begins driving; activates battery pack cooling when the maximum temperature meets the driving cooling conditions. This method allows for separate determinations of whether to perform battery pack cooling during the charging and driving phases of an electric vehicle, distinguishing between battery pack cooling intervals during charging and driving. This ensures that the battery pack maintains a lower temperature after charging is complete, reducing energy consumption during driving immediately after charging, increasing the range of pure electric vehicles, and preventing increased energy consumption from driving due to battery pack cooling intervention triggered by driving immediately after charging, thereby improving the range of electric vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural diagram of an electric vehicle battery pack cooling control device in a hardware operating environment involved in an embodiment of the present invention;

[0042] Figure 2 This is a flow chart of a first embodiment of a cooling control method for an electric vehicle battery pack according to the present invention;

[0043] Figure 3 This is a complete control flow diagram of an embodiment of a cooling control method for an electric vehicle battery pack according to the present invention;

[0044] Figure 4 This is a flow chart of a second embodiment of the cooling control method for an electric vehicle battery pack according to the present invention;

[0045] Figure 5 This is a schematic diagram of a functional test flow in an embodiment of a cooling control method for an electric vehicle battery pack according to the present invention;

[0046] Figure 6 This is a structural block diagram of the first embodiment of the electric vehicle battery pack cooling control device of the present invention.

[0047] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0048] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of an electric vehicle battery pack cooling control device in the hardware operating environment involved in the embodiment of the present invention.

[0050] like Figure 1As shown, the electric vehicle battery pack cooling control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard. Optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk storage device. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0051] Those skilled in the art will understand that Figure 1 The structure shown in does not constitute a limitation on the electric vehicle battery pack cooling control device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0052] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and an electric vehicle battery pack cooling control program.

[0053] exist Figure 1 In the electric vehicle battery pack cooling control device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the electric vehicle battery pack cooling control device of the present invention can be set in the electric vehicle battery pack cooling control device, and the electric vehicle battery pack cooling control device calls the electric vehicle battery pack cooling control program stored in the memory 1005 through the processor 1001, and executes the electric vehicle battery pack cooling control method provided by the embodiment of the present invention.

[0054] The embodiment of the present invention provides a cooling control method for an electric vehicle battery pack, referring to Figure 2 , Figure 2 This is a flow chart of a first embodiment of a cooling control method for an electric vehicle battery pack according to the present invention.

[0055] In this embodiment, the electric vehicle battery pack cooling control method includes the following steps:

[0056] Step S10: When the vehicle is charging, obtain the maximum temperature of the rechargeable battery pack.

[0057] In this embodiment, the execution subject may be the electric vehicle battery pack cooling control device, which has functions such as data processing, data communication, and program execution. The electric vehicle battery pack cooling control device may be the vehicle controller of the electric vehicle. Of course, other devices with similar functions may also be used, and this implementation condition does not restrict this. For ease of explanation, this embodiment uses the electric vehicle battery pack cooling control device as an example.

[0058] It should be understood that when the vehicle is charging, the highest temperature value of the battery pack within the preset cycle during the charging process is first obtained as the maximum temperature of the charging battery pack. The VCU detects whether the entire vehicle is in a charging state and receives the maximum temperature of the battery pack sent by the BMS to the CAN network in real time for judgment. Among them, the vehicle controller: a device that interacts with the CAN bus of the entire vehicle, collects information from each controller for processing and feeds back control instructions, referred to as VCU. Battery pack management system: a system that monitors the health of each cell inside the battery pack and sends information such as the power, maximum voltage, minimum voltage, maximum temperature, and minimum temperature of the entire pack to the CAN network, referred to as BMS. On-board charger: refers to a charger fixedly installed on an electric vehicle, which has the ability to safely and automatically fully charge the power battery of an electric vehicle. The charger can dynamically adjust the charging current or voltage parameters based on the data provided by the battery management system (BMS), perform corresponding actions, and complete the charging process, referred to as OBC.

[0059] Step S20: When the maximum temperature of the rechargeable battery pack meets the charging cooling condition, start the battery pack cooling.

[0060] In a specific implementation, after determining the maximum temperature of the charging battery pack, it is determined whether the maximum temperature of the charging battery pack meets the charging cooling conditions. When the maximum temperature of the charging battery pack meets the charging cooling conditions, the battery pack cooling function is turned on. When the maximum temperature of the charging battery pack does not meet the charging cooling conditions, the battery pack cooling function is not turned on.

[0061] Furthermore, in order to accurately determine whether to turn on battery pack cooling during charging, step S20 includes: comparing the maximum temperature of the charging battery pack with a first temperature threshold; when the comparison result is that the maximum temperature of the charging battery pack is greater than the first temperature threshold, it is determined that the charging cooling conditions are met and the battery pack cooling is turned on.

[0062] It should be noted that the first temperature threshold is a preset temperature threshold and can be a temperature value of any size, which is not limited in this embodiment.

[0063] It should be understood that when the maximum temperature of the charging battery pack is greater than the first temperature threshold, it is determined that the charging cooling conditions are met, and the battery pack cooling function can be turned on at this time; when the maximum temperature of the charging battery pack is less than or equal to the first temperature threshold, it is determined that the charging cooling conditions are not met, and the battery pack cooling function is not turned on at this time.

[0064] In this way, it is possible to accurately determine whether the battery pack cooling function is required during the charging process.

[0065] Furthermore, in order to reduce the energy consumption of the battery pack cooling function, after step S20, it also includes: collecting and updating the maximum temperature of the charging battery pack; comparing the updated maximum temperature of the charging battery pack with a second temperature threshold; when the updated maximum temperature of the charging battery pack is less than the second temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling is turned off.

[0066] In a specific implementation, after the battery pack cooling function is enabled, the CAN transmission signal is collected in real time to update the maximum temperature of the rechargeable battery pack in real time. The updated rechargeable battery pack temperature is then compared with a second temperature threshold to determine whether the charging and cooling stop condition is met. The second temperature threshold is a pre-set temperature value that can be any value, but the second temperature threshold is lower than the first temperature threshold.

[0067] It should be noted that when it is determined that the maximum temperature of the updated charging battery pack is less than the second temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling function is turned off at this time; when it is determined that the maximum temperature of the updated charging battery pack is greater than or equal to the second temperature threshold, it is determined that the charging cooling stop condition is not met, and the battery pack cooling function is maintained on.

[0068] In this way, the battery pack temperature can be monitored in real time after the battery pack cooling function is turned on during charging, so that the battery pack cooling can be turned off in time when the battery pack temperature does not need to be cooled, thereby reducing vehicle energy consumption.

[0069] Step S30: When the vehicle is fully charged and starts driving, the maximum temperature of the driving battery pack is obtained.

[0070] It should be understood that after the vehicle is fully charged, when it is detected that the vehicle starts to move, it is determined that driving has begun. At this time, the best temperature of the battery pack within the preset period is obtained as the maximum temperature of the battery pack during driving.

[0071] Step S40: When the maximum temperature of the driving battery pack meets the driving cooling condition, the battery pack cooling is started.

[0072] In a specific implementation, after determining the maximum temperature of the battery pack during driving, it is determined whether the maximum temperature of the battery pack during driving meets the driving cooling conditions. When the maximum temperature of the battery pack during driving meets the driving cooling conditions, the battery pack cooling function is turned on. When the maximum temperature of the battery pack during driving does not meet the driving cooling conditions, the battery pack cooling function is not turned on.

[0073] Furthermore, in order to accurately determine whether to turn on battery pack cooling while driving, step S40 includes: comparing the maximum temperature of the driving battery pack with a third temperature threshold; when the comparison result is that the maximum temperature of the driving battery pack is greater than the third temperature threshold, it is determined that the driving cooling conditions are met and the battery pack cooling is turned on.

[0074] It should be noted that the third temperature threshold is a preset temperature threshold and can be a temperature value of any size, which is not limited in this embodiment.

[0075] It should be understood that when the maximum temperature of the battery pack during driving is greater than the third temperature threshold, it is determined that the driving cooling conditions are met, and the battery pack cooling function can be turned on at this time; when the maximum temperature of the battery pack during driving is less than or equal to the third temperature threshold, it is determined that the driving cooling conditions are not met, and the battery pack cooling function is not turned on at this time.

[0076] In this way, it is possible to accurately determine whether the battery pack cooling function is required during driving.

[0077] Furthermore, in order to reduce the energy consumption of the battery pack cooling function during driving, after step S40, it also includes: collecting and updating the maximum temperature of the driving battery pack; comparing the updated maximum temperature of the driving battery pack with the fourth temperature threshold; when the updated maximum temperature of the driving battery pack is less than the fourth temperature threshold, it is determined that the driving cooling stop condition is met, and the battery pack cooling is turned off.

[0078] It should be noted that if Figure 3 The complete implementation process of this embodiment is shown. After the battery pack cooling function is enabled, the CAN transmission signal is collected in real time to update the maximum battery pack temperature during driving. The updated battery pack temperature is then compared with a fourth temperature threshold to determine whether the driving cooling stop condition is met. The fourth temperature threshold is a preset temperature value that can be any value, but it is lower than the third temperature threshold.

[0079] It should be noted that when it is determined that the updated maximum temperature of the driving battery pack is less than the fourth temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling function is turned off at this time; when it is determined that the updated maximum temperature of the driving battery pack is greater than or equal to the fourth temperature threshold, it is determined that the charging cooling stop condition is not met, and the battery pack cooling function is maintained on.

[0080] In this way, the battery pack temperature can be continuously monitored in real time after the battery pack cooling function is turned on during driving, so that the battery pack cooling can be turned off in time when the battery pack temperature does not need to be cooled, thereby reducing vehicle energy consumption during driving.

[0081] This embodiment obtains the maximum temperature of the charging battery pack while the vehicle is charging; activates battery pack cooling when the maximum temperature meets the charging cooling condition; obtains the maximum temperature of the driving battery pack when the vehicle is fully charged and begins driving; activates battery pack cooling when the maximum temperature meets the driving cooling condition. In this way, the determination of whether to perform battery pack cooling is separated between the charging and driving phases of the electric vehicle, distinguishing between the battery pack cooling intervals during charging and driving. This ensures that the battery pack is at a lower temperature after charging is completed, reducing the energy consumption of driving immediately after charging, thereby increasing the mileage of pure electric vehicles, and preventing the increase in driving energy consumption caused by driving immediately after charging by triggering battery pack cooling intervention, thereby improving the mileage of electric vehicles.

[0082] refer to Figure 4 , Figure 4 This is a flow chart of a second embodiment of a cooling control method for an electric vehicle battery pack according to the present invention.

[0083] Based on the first embodiment described above, the electric vehicle battery pack cooling control method of this embodiment further includes, after step S40:

[0084] Step S401: Connect the vehicle to a test device, and configure and set threshold information through the test device.

[0085] It should be noted that the test equipment refers to a computer with CANape software installed, a set of CANape equipment, a calibration sample vehicle that can be used normally and the corresponding software.

[0086] It should be understood that after the test device is connected, the pre-configured set threshold information is determined by the test device, which includes the first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold during the test.

[0087] Step S402: obtaining charging operation parameters when charging the vehicle and driving operation parameters when starting the vehicle and driving the vehicle in parallel through the test equipment through the test equipment.

[0088] In a specific implementation, charging operation parameters include, but are not limited to, battery pack temperature information during charging, battery pack cooling status, and information related to vehicle energy consumption. Driving operation parameters include, but are not limited to, battery pack temperature information during driving after charging, battery pack cooling status, and information related to vehicle energy consumption.

[0089] Step S403: Determine battery pack cooling function operation information and driving energy consumption information according to the charging operation parameters, the driving operation parameters and the set threshold information.

[0090] It should be noted that the battery pack cooling function operation information includes but is not limited to the time when the battery pack cooling is turned on and off and related information, and the driving energy consumption information is the energy consumption related information of the vehicle during the test.

[0091] Furthermore, in order to accurately obtain the battery pack cooling function operation information and driving energy consumption information, step S403 includes: determining the battery pack temperature information based on the charging operation parameters and the driving operation parameters; determining the battery pack cooling function operation information based on the battery pack temperature information and the set threshold information; and determining the driving energy consumption information based on the driving operation parameters.

[0092] It should be understood that the battery pack temperature information is first determined based on the charging operation parameters and the driving operation parameters, that is, the information on the battery pack temperature and the minimum battery pack temperature changing over time during the charging process and driving is extracted.

[0093] In a specific implementation, after obtaining the set threshold information, the battery pack cooling function operation information is determined in combination with the set threshold information, charging operation parameters and driving operation parameters, that is, it is determined whether the battery pack cooling is turned on and off when the battery pack cooling conditions and the battery pack cooling shutdown conditions are met.

[0094] It should be noted that, finally, the driving energy consumption of the vehicle during the driving phase of the test process is calculated based on the driving operation parameters as the driving energy consumption information.

[0095] In this way, accurate evaluation of the startup records of the battery pack cooling function and the resulting changes in vehicle energy consumption is achieved.

[0096] Step S404: Determine a vehicle test result based on the battery pack cooling function operation information and the driving energy consumption information.

[0097] It should be understood that if Figure 5 The figure shows a test process diagram, which can finally generate vehicle test results, that is, combining the battery pack cooling function operation information and the trip energy consumption information to evaluate whether the battery pack intelligent cooling function is operating normally.

[0098] This embodiment connects a vehicle to a test device and configures threshold information through the test device; uses the test device to obtain charging operating parameters when the vehicle is charging, as well as driving operating parameters when the vehicle is started and driven by the test device; determines battery pack cooling function operating information and driving energy consumption information based on the charging operating parameters, driving operating parameters, and the set threshold information; and determines vehicle test results based on the battery pack cooling function operating information and driving energy consumption information. In this way, the intelligent control logic of the battery pack cooling is tested for abnormalities through virtual testing during actual operation, thereby ensuring normal function during actual operation.

[0099] In addition, an embodiment of the present invention further proposes a storage medium on which an electric vehicle battery pack cooling control program is stored. When the electric vehicle battery pack cooling control program is executed by a processor, the steps of the electric vehicle battery pack cooling control method described above are implemented.

[0100] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0101] Reference Figure 6 , Figure 6 This is a structural block diagram of the first embodiment of the electric vehicle battery pack cooling control device of the present invention.

[0102] like Figure 6 As shown, the electric vehicle battery pack cooling control device proposed in the embodiment of the present invention includes:

[0103] The charging temperature measurement module 10 is used to obtain the maximum temperature of the rechargeable battery pack when the vehicle is charging.

[0104] The charging cooling module 20 is used to start battery pack cooling when the maximum temperature of the rechargeable battery pack meets the charging cooling condition.

[0105] The driving temperature measurement module 30 is used to obtain the maximum temperature of the driving battery pack when the vehicle is fully charged and starts driving.

[0106] The driving cooling module 40 is used to start battery pack cooling when the maximum temperature of the driving battery pack meets the driving cooling conditions.

[0107] This embodiment obtains the maximum temperature of the charging battery pack while the vehicle is charging; activates battery pack cooling when the maximum temperature meets the charging cooling condition; obtains the maximum temperature of the driving battery pack when the vehicle is fully charged and begins driving; activates battery pack cooling when the maximum temperature meets the driving cooling condition. In this way, the determination of whether to perform battery pack cooling is separated between the charging and driving phases of the electric vehicle, distinguishing between the battery pack cooling intervals during charging and driving. This ensures that the battery pack is at a lower temperature after charging is completed, reducing the energy consumption of driving immediately after charging, thereby increasing the mileage of pure electric vehicles, and preventing the increase in driving energy consumption caused by driving immediately after charging by triggering battery pack cooling intervention, thereby improving the mileage of electric vehicles.

[0108] In one embodiment, the charging cooling module 20 is further used to compare the maximum temperature of the charging battery pack with a first temperature threshold; when the comparison result is that the maximum temperature of the charging battery pack is greater than the first temperature threshold, it is determined that the charging cooling condition is met and the battery pack cooling is turned on.

[0109] In one embodiment, the charging cooling module 20 is further used to collect and update the maximum temperature of the charging battery pack; compare the updated maximum temperature of the charging battery pack with a second temperature threshold; when the updated maximum temperature of the charging battery pack is less than the second temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling is turned off.

[0110] In one embodiment, the driving cooling module 40 is further used to compare the maximum temperature of the driving battery pack with a third temperature threshold; when the comparison result is that the maximum temperature of the driving battery pack is greater than the third temperature threshold, it is determined that the driving cooling conditions are met and the battery pack cooling is turned on.

[0111] In one embodiment, the driving cooling module 40 is also used to collect and update the maximum temperature of the driving battery pack; compare the updated maximum temperature of the driving battery pack with a fourth temperature threshold; when the updated maximum temperature of the driving battery pack is less than the fourth temperature threshold, it is determined that the driving cooling stop condition is met and the battery pack cooling is turned off.

[0112] In one embodiment, the driving cooling module 40 is also used to connect the vehicle to a test device and configure set threshold information through the test device; obtain charging operation parameters when charging the vehicle through the test device, and driving operation parameters when starting the vehicle and driving in parallel through the test device; determine the battery pack cooling function operation information and driving energy consumption information based on the charging operation parameters, the driving operation parameters and the set threshold information; and determine the vehicle test results based on the battery pack cooling function operation information and the driving energy consumption information.

[0113] In one embodiment, the driving cooling module 40 is further used to determine the battery pack temperature information based on the charging operation parameters and the driving operation parameters; determine the battery pack cooling function operation information based on the battery pack temperature information and the set threshold information; and determine the driving energy consumption information based on the driving operation parameters.

[0114] It should be understood that the above is only an example and does not constitute any limitation to the technical solution of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any limitation on this.

[0115] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of it according to actual needs to achieve the purpose of the embodiment scheme, and no limitation is made here.

[0116] In addition, for technical details not fully described in this embodiment, please refer to the electric vehicle battery pack cooling control method provided in any embodiment of the present invention, and will not be repeated here.

[0117] In addition, it should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0118] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0119] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, or of course by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0120] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cooling control method for an electric vehicle battery pack, characterized in that: The electric vehicle battery pack cooling control method includes: When the vehicle is charging, obtain the maximum temperature of the charging battery pack; When the maximum temperature of the rechargeable battery pack meets the charging cooling condition, starting the battery pack cooling; When the vehicle is fully charged and starts driving, obtain the maximum temperature of the driving battery pack; When the maximum temperature of the driving battery pack meets the driving cooling condition, turning on the battery pack cooling; When the maximum temperature of the driving battery pack meets the driving cooling condition, after starting the battery pack cooling, the method further includes: Connecting the vehicle to a test device and configuring and setting threshold information through the test device; Obtaining charging operation parameters when charging the vehicle through the test equipment, and driving operation parameters when starting the vehicle and driving in parallel through the test equipment; Determining battery pack cooling function operation information and driving energy consumption information based on the charging operation parameter, the driving operation parameter, and the set threshold information; The vehicle test result is determined based on the battery pack cooling function operation information and the driving energy consumption information, so as to detect whether the intelligent control logic of the battery pack cooling is abnormal through virtual testing.

2. The method according to claim 1, wherein When the maximum temperature of the rechargeable battery pack meets the charging cooling condition, starting the battery pack cooling includes: Comparing the maximum temperature of the rechargeable battery pack with a first temperature threshold; When the comparison result shows that the maximum temperature of the rechargeable battery pack is greater than the first temperature threshold, it is determined that the charging cooling condition is met and the battery pack cooling is started.

3. The method according to claim 1, wherein When the maximum temperature of the rechargeable battery pack meets the charging cooling condition, after starting the battery pack cooling, the method further includes: Collect and update the maximum temperature of the rechargeable battery pack; comparing the updated maximum temperature of the rechargeable battery pack with a second temperature threshold; When the updated maximum temperature of the rechargeable battery pack is less than the second temperature threshold, it is determined that the charging cooling stop condition is met, and the battery pack cooling is turned off.

4. The method according to claim 1, wherein When the maximum temperature of the driving battery pack meets the driving cooling condition, starting the battery pack cooling includes: Comparing the maximum temperature of the driving battery pack with a third temperature threshold; When the comparison result shows that the maximum temperature of the driving battery pack is greater than the third temperature threshold, it is determined that the driving cooling condition is met and the battery pack cooling is turned on.

5. The method according to claim 1, wherein When the maximum temperature of the driving battery pack meets the driving cooling condition, after starting the battery pack cooling, the method further includes: Collect and update the maximum temperature of the driving battery pack; Comparing the updated maximum temperature of the driving battery pack with the fourth temperature threshold; When the updated maximum temperature of the driving battery pack is less than the fourth temperature threshold, it is determined that the driving cooling stop condition is met, and the battery pack cooling is turned off.

6. The method according to claim 1, wherein The determining of the battery pack cooling function operation information and the driving energy consumption information according to the charging operation parameter, the driving operation parameter, and the set threshold information includes: Determining battery pack temperature information according to the charging operation parameters and the driving operation parameters; Determining battery pack cooling function operation information according to the battery pack temperature information and the set threshold information; Driving energy consumption information is determined according to the driving operation parameters.

7. A cooling control device for an electric vehicle battery pack, characterized in that: The electric vehicle battery pack cooling control device includes: Charging temperature measurement module, used to obtain the maximum temperature of the rechargeable battery pack when the vehicle is charging; A charging cooling module, configured to start cooling the battery pack when the maximum temperature of the rechargeable battery pack meets the charging cooling conditions; The driving temperature measurement module is used to obtain the maximum temperature of the driving battery pack when the vehicle is fully charged and starts driving; A driving cooling module, configured to start cooling the battery pack when the maximum temperature of the driving battery pack meets the driving cooling conditions; The driving cooling module is also used to connect the vehicle to the test equipment and configure the set threshold information through the test equipment; obtain the charging operation parameters when charging the vehicle, and the driving operation parameters when starting the vehicle and driving in parallel through the test equipment; determine the battery pack cooling function operation information and driving energy consumption information based on the charging operation parameters, the driving operation parameters and the set threshold information; determine the vehicle test results based on the battery pack cooling function operation information and the driving energy consumption information, and realize the detection of whether the intelligent control logic of the battery pack cooling is abnormal through virtual testing.

8. An electric vehicle battery pack cooling control device, characterized in that: The device includes: a memory, a processor, and an electric vehicle battery pack cooling control program stored in the memory and executable on the processor, wherein the electric vehicle battery pack cooling control program is configured to implement the electric vehicle battery pack cooling control method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores an electric vehicle battery pack cooling control program, and when the electric vehicle battery pack cooling control program is executed by the processor, the electric vehicle battery pack cooling control method according to any one of claims 1 to 6 is implemented.

Images