Method, device and equipment for controlling thermal management of battery before charging and storage medium

Abstract

The invention relates to the technical field of vehicle battery thermal management, and discloses a control method, device and equipment for battery thermal management before charging and a storage medium, and the method comprises the steps: detecting whether the current residual electric quantity of a vehicle battery is greater than a first threshold value or not, and detecting whether the current condition meets a preset condition or not; if the detection results are yes, the current remaining mileage and the current remaining driving time of the current vehicle driving to the target charging station are monitored in combination with the received real-time navigation information; if it is monitored that the current remaining mileage is smaller than or equal to the second threshold value and the current remaining driving time is smaller than or equal to the third threshold value, battery thermal management is started. According to the method, comprehensive judgment is carried out by combining the remaining electric quantity, the current condition, the real-time remaining mileage and the real-time remaining driving time, so that the optimal time for controlling the starting of battery thermal management can be determined, and the vehicle can reach the target charging station and is successfully charged.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle battery thermal management, and in particular to a control method, device, equipment and storage medium for thermal management of a battery before charging. Background Art

[0002] Battery thermal management is a new technology that is based on the influence of temperature on battery performance, combined with the electrochemical characteristics and heat generation mechanism of the battery, based on the optimal charging and discharging temperature range of the specific battery. It is established through reasonable design on the basis of multiple disciplines and fields such as materials science, electrochemistry, heat transfer, molecular dynamics, etc. It is designed to solve the problem of thermal dissipation or thermal runaway caused by batteries working at too high or too low temperatures, so as to improve the overall performance of the battery.

[0003] At present, the common control and activation conditions of battery thermal management are: judging whether to activate battery thermal management based on the remaining mileage and remaining driving time from the current location of the vehicle to the charging station sent by the map, so as to ensure that the battery reaches the optimal charging temperature when the user arrives at the charging station. However, such a control and activation method of battery thermal management has the problem of single judgment conditions, and the activation of the battery thermal management function leads to increased energy consumption, and the vehicle cannot reach the charging station or destination. Summary of the invention

[0004] In view of the above problems, the present invention provides a control method, device, equipment and storage medium for battery thermal management before charging, which is used to solve the technical problems in the prior art that the judgment conditions are single and the battery thermal management function is turned on, resulting in increased energy consumption and the vehicle cannot reach the charging station or destination.

[0005] According to one aspect of an embodiment of the present invention, a control method for thermal management of a battery before charging is provided, the method comprising: detecting whether a current remaining power of a vehicle battery is greater than a first threshold value, and detecting whether a current condition satisfies a preset condition; wherein the current condition is obtained based on the current vehicle condition and / or target charging station information; if the detection results are both yes, then in combination with the received real-time navigation information, monitoring the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station; if it is monitored that the current remaining mileage is less than or equal to a second threshold value, and the current remaining driving time is less than or equal to a third threshold value, then starting the thermal management of the battery.

[0006] In an optional manner, the step of detecting whether the current remaining power of the vehicle battery is greater than a first threshold and whether the current condition meets a preset condition further includes: if the result of any one of the detections is no, the battery thermal management is no longer turned on during the current navigation driving.

[0007] In an optional manner, the preset condition includes that the target charging station includes an AC charging pile; the step of detecting whether the current condition meets the preset condition further includes: determining whether the target charging station includes an AC charging pile based on the target charging station information; if an AC charging pile is included, the current condition meets the preset condition; if an AC charging pile is not included, the current condition does not meet the preset condition.

[0008] In an optional manner, the preset condition includes that a boost device is provided in the current vehicle; the step of detecting whether the current condition meets the preset condition further includes: determining whether a boost device is provided in the current vehicle according to the current vehicle condition; if a boost device is provided, the current condition meets the preset condition; if no boost device is provided, the current condition does not meet the preset condition.

[0009] In an optional manner, the preset condition includes that the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage; the step of detecting whether the current condition meets the preset condition further includes: determining the current vehicle DC charging voltage according to the current vehicle condition, and determining the DC charging pile voltage according to the target charging station information; detecting whether the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage; if so, the current condition meets the preset condition; if not, the current condition does not meet the preset condition.

[0010] In an optional manner, if it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, then after starting the battery thermal management step, the method also includes: monitoring the current remaining power of the current vehicle on the way to the target charging station; if it is monitored that the current remaining power is less than the first threshold, turning off the battery thermal management.

[0011] In an optional manner, if it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, then after starting the battery thermal management step, it also includes: detecting whether the battery thermal management duration after the battery thermal management is turned on reaches a preset duration; if the preset duration is reached, turning off the battery thermal management.

[0012] According to another aspect of an embodiment of the present invention, a control device for thermal management of a battery before charging is provided, comprising: a detection module, for detecting whether a current remaining power of a vehicle battery is greater than a first threshold value, and detecting whether a current condition satisfies a preset condition; wherein the current condition is obtained according to the current vehicle condition and / or information of a target charging station; a monitoring module, for monitoring the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station in combination with the received real-time navigation information if all the detection results are yes; and a thermal management activation module, for activating the thermal management of the battery if it is monitored that the current remaining mileage is less than or equal to a second threshold value, and the current remaining driving time is less than or equal to a third threshold value.

[0013] According to another aspect of an embodiment of the present invention, a device is provided, including: a controller; and a memory for storing one or more programs, wherein when the one or more programs are executed by the controller, the controller implements any one of the control methods for thermal management of a battery before charging described above.

[0014] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the storage medium stores at least one executable instruction, and when the executable instruction is executed on a device / equipment, the executable instruction enables the device / equipment to perform any one of the above-described operations of controlling thermal management of a battery before charging.

[0015] The embodiment of the present invention detects whether the current remaining power of the vehicle battery is greater than the first threshold value, and detects whether the current conditions meet the preset conditions; if the detection results are both yes, then the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored in combination with the received real-time navigation information; if it is monitored that the current remaining mileage is less than or equal to the second threshold value, and the current remaining driving time is less than or equal to the third threshold value, the battery thermal management is turned on. A comprehensive judgment is made by combining the remaining power, current conditions, and the real-time remaining mileage and remaining driving time, so that the best control time for turning on the battery thermal management can be determined, so that the vehicle can reach the target charging station and charge successfully.

[0016] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0018] Figure 1A schematic flow chart of an embodiment of a method for controlling thermal management of a battery before charging provided by the present invention is shown;

[0019] Figure 2 A schematic flow chart showing another embodiment of a method for controlling thermal management of a battery before charging provided by the present invention;

[0020] Figure 3 A schematic flow chart showing another embodiment of a method for controlling thermal management of a battery before charging provided by the present invention;

[0021] Figure 4 A schematic flow chart showing another embodiment of a method for controlling thermal management of a battery before charging provided by the present invention;

[0022] Figure 5 A schematic flow chart showing another embodiment of a method for controlling thermal management of a battery before charging provided by the present invention;

[0023] Figure 6 A schematic flow chart showing another embodiment of a method for controlling thermal management of a battery before charging provided by the present invention;

[0024] Figure 7 A schematic structural diagram of an embodiment of a control device for thermal management of a battery before charging provided by the present invention is shown;

[0025] Figure 8 A schematic structural diagram of an embodiment of the device provided by the present invention is shown. DETAILED DESCRIPTION

[0026] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0027] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0028] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0029] In the present invention, the term "plurality" refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0030] A Chinese patent document with publication number CN115871513A discloses a technology named "A method and device for thermal management of batteries before charging, and electronic equipment". This technology determines whether to start battery thermal management by using the remaining mileage and remaining driving time from the current location of the vehicle to the charging station sent by the map, thereby ensuring that the battery reaches the optimal charging temperature when the user arrives at the charging station. However, the use of remaining mileage and remaining driving time to determine whether battery thermal management is turned on does not take into account conditions such as the battery's SOC, the voltage of the charging pile, and whether the vehicle is equipped with a boost box. This will not only consume the power of the entire vehicle, but may also cause the vehicle to run out of power before arriving at the charging station, or even cause the vehicle to arrive at the charging station without a charging pile that meets the requirements of the vehicle.

[0031] It can be seen that the defects / problems of the existing technology are: 1. The vehicle runs out of power before reaching the charging station, and the whole vehicle breaks down. 2. When the vehicle arrives at the charging station, there is no charging pile that meets the usage requirements, and thermal management leads to increased energy consumption, affecting the vehicle's endurance and the user's subsequent vehicle needs.

[0032] The reasons are: 1. The battery thermal management function is turned on without considering the remaining SOC of the whole vehicle or the estimated remaining SOC when arriving at the charging station. When the whole vehicle is low on power, it can only support the vehicle to reach the charging station. As a result, the energy consumption increases due to the activation of the battery thermal management function, and the vehicle cannot reach the charging station or destination. 2. With the upgrade of the high-voltage platform of the whole vehicle, most manufacturers have launched 800V high-voltage platform models, but there are still a large number of 400V charging stations in the market. If the user has an 800V car and is not equipped with a boost box, it will definitely not be able to charge when navigating to a 400V high-voltage platform. In this process, turning on the battery thermal management will increase energy consumption, lower the SOC, and affect the vehicle's endurance and the user's subsequent vehicle use plan.

[0033] To solve the above technical problems, the embodiments of the present invention provide a control method, device, equipment and storage medium for thermal management of batteries before charging. Thus, the user can start the thermal management strategy at an appropriate time before charging, thereby ensuring that the battery reaches the optimal charging temperature when the user arrives at the charging station, so that the user can complete charging in the shortest time. The following embodiments are used for detailed description.

[0034] It should be noted that the application scenario of the present invention is that the target vehicle navigates to the target charging station, and the battery thermal management of the target vehicle before charging is performed during driving, so that the battery reaches the optimal charging temperature when the target vehicle arrives at the charging station, thereby allowing the user to complete charging in the shortest time.

[0035] The cockpit controller receives relevant information from the navigation map every 1 minute and transmits the information to the vehicle controller. The vehicle controller controls the battery thermal management to be turned on or off according to the strategy in the following embodiment.

[0036] Figure 1 The flowchart of an embodiment of the control method of the pre-charging battery thermal management of the present invention is shown, and the method is executed by the vehicle control unit (VCU). Figure 1 As shown, the method comprises the following steps:

[0037] Step S110: Detect whether the current remaining power of the vehicle battery is greater than a first threshold, and detect whether the current condition meets a preset condition.

[0038] The current condition is obtained according to the current vehicle condition and / or the target charging station information.

[0039] Specifically, the VCU first determines the estimated charging time. If the estimated remaining SOC at the charging station is less than threshold 1 (i.e., the first threshold), the battery thermal management will not be turned on during this navigation driving; if the estimated remaining SOC at the charging station is greater than or equal to threshold 1 (i.e., the first threshold), the current conditions are determined. SOC is the remaining power of the vehicle. If the current conditions meet the preset conditions, the next step is executed. If the current conditions are not met, the battery thermal management will not be turned on during this navigation driving.

[0040] The preset conditions are that the target charging station has an AC charging pile, the vehicle has a boost device, or the DC charging pile voltage is ≥ the vehicle's DC charging voltage.

[0041] Step S120: If the detection results are all yes, then the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored in combination with the received real-time navigation information.

[0042] Specifically, since the current remaining mileage and the current remaining driving time of the current vehicle will change in real time with time during driving, real-time monitoring is required.

[0043] Step S130: If it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, the battery thermal management is turned on.

[0044] Specifically, if the remaining mileage is less than or equal to threshold 2 (i.e., the second threshold) and the remaining driving time is less than or equal to threshold 3 (i.e., the third threshold), the corresponding thermal management software is controlled to start battery thermal management. If one of the remaining mileage or the remaining driving time is not less than or equal to the corresponding threshold (i.e., the second threshold and the third threshold), the current vehicle will continue to receive and forward navigation map information to the VCU until the remaining mileage is less than or equal to threshold 2 (the second threshold) and the remaining driving time is less than or equal to threshold 3 (the third threshold), then the corresponding thermal management software is controlled to start battery thermal management.

[0045] Beneficial effects: By detecting whether the current remaining power of the vehicle battery is greater than the first threshold, and detecting whether the current conditions meet the preset conditions; if the detection results are both yes, then combined with the received real-time navigation information, the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored; if it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, the battery thermal management is turned on. A comprehensive judgment is made by combining the remaining power, current conditions, and real-time remaining mileage and remaining driving time, so that the best control time for turning on the battery thermal management can be determined, so that the vehicle can reach the target charging station and charge successfully.

[0046] In some embodiments, step S110 further includes: if the result of any one of the tests is no, the battery thermal management will no longer be turned on during the current navigation driving. Specifically, if the current remaining power is less than or equal to the first threshold, the battery thermal management will not be turned on during this navigation driving; if the current condition does not meet the preset condition, the battery thermal management will not be turned on during this navigation driving. The preset condition is that the target charging station has an AC charging pile, the vehicle has a boost device, or the DC charging pile voltage ≥ the vehicle DC charging voltage. If each preset condition is not met, the current condition does not meet the preset condition. Beneficial effect: If any of them is not met, it means that turning on the battery heat pipe will only consume power faster, and then the vehicle will stop on the way and cannot drive because the battery is exhausted before reaching the charging pile that can be charged. Therefore, this embodiment refines the execution strategy of not turning on the battery thermal management when the conditions are not met, and improves the technical solution.

[0047] In some embodiments, the preset conditions include that the target charging station includes an AC charging pile; Figure 2As shown, the step of detecting whether the current condition meets the preset condition in step S110 further includes:

[0048] Step S111A: Determine whether the target charging station includes an AC charging pile according to the target charging station information.

[0049] Specifically, the VCU distinguishes the charging pile information of the charging station and determines whether the target charging station has an AC charging pile. If there is no AC charging pile, it means that the current target charging station only has a DC charging pile.

[0050] Step S112A: If an AC charging pile is included, the current condition meets the preset condition.

[0051] Step S113A: If the AC charging pile is not included, the current condition does not meet the preset condition.

[0052] Beneficial effect: The steps for detecting whether the current conditions meet the preset conditions are further refined. By combining the current remaining power, whether the target charging station is equipped with an AC charging pile, the current remaining mileage and the current remaining driving time, it is specifically determined whether the battery thermal management is turned on for the current vehicle, thereby achieving dual considerations from the vehicle side and the charging station side, improving the accuracy of whether the battery thermal management control is turned on, and improving the solution of the present invention.

[0053] In some embodiments, the preset condition includes that a boost device is currently installed in the vehicle; Figure 3 As shown, the step of detecting whether the current condition meets the preset condition in step S110 further includes:

[0054] Step S111B: Determine whether a boost device is currently installed in the vehicle according to the current vehicle condition.

[0055] Specifically, the VCU obtains the information of the vehicle's boost box and determines whether there is a boost box (i.e., boost device) in the current vehicle. This is for the above-mentioned cause: "With the upgrade of the vehicle's high-voltage platform, most manufacturers have launched 800V high-voltage platform models, but there are still a large number of 400V charging stations in the market. If the user's car is 800V and is not equipped with a boost box, it will definitely not be able to charge if it navigates to the 400V high-voltage platform. In this process, turning on battery thermal management will increase energy consumption, lower SOC, and affect the vehicle's endurance box and the user's subsequent vehicle use plan."

[0056] Step S112B: If a boost device is provided, the current condition satisfies the preset condition.

[0057] Step S113B: If the boost device is not provided, the current condition does not meet the preset condition.

[0058] Beneficial effect: The steps for detecting whether the current conditions meet the preset conditions are further refined. By combining the current remaining power, the boost device currently installed in the vehicle, the current remaining mileage and the current remaining driving time, it is specifically determined whether the battery thermal management is turned on for the current vehicle. This takes into account the current situation that there are only 400V charging piles in the market. By combining the boost device currently installed in the vehicle, the judgment conditions for whether the battery thermal management control is turned on are further refined, thereby improving the accuracy of whether the battery thermal management control is turned on, and further improving the solution of the present invention.

[0059] In some embodiments, the preset condition includes that the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage; Figure 4 As shown, the step of detecting whether the current condition meets the preset condition in step S110 further includes:

[0060] Step S111C: Determine the current vehicle DC charging voltage according to the current vehicle condition, and determine the DC charging pile voltage according to the target charging station information.

[0061] Specifically, the DC charging voltage of the current vehicle is obtained according to the current vehicle condition; and the DC charging pile voltage is obtained according to the target charging station information, which is a type of information in the navigation information.

[0062] Step S112C: Detect whether the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage.

[0063] Specifically, the VCU compares the DC charging voltage of the vehicle with the voltage of the DC charging pile.

[0064] Step S113C: If yes, the current condition satisfies the preset condition.

[0065] Specifically, if the vehicle DC charging voltage is less than or equal to the DC charging pile voltage, the current condition meets the preset condition.

[0066] Step S114C: If not, the current condition does not meet the preset condition.

[0067] Specifically, if the DC charging voltage of the vehicle is greater than the DC charging pile voltage, the current condition does not meet the preset condition, which means that this charging station cannot charge the vehicle, and navigation thermal management will not be turned on during this navigation driving.

[0068] Beneficial effect: The steps for detecting whether the current conditions meet the preset conditions are further refined. By combining the current remaining power, whether the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage, the current remaining mileage and the current remaining driving time, it is specifically judged whether the current vehicle has turned on battery thermal management, thereby achieving dual considerations from the vehicle side and the charging station side. At the same time, by combining whether the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage, the judgment conditions for whether the battery thermal management control is turned on are further refined, thereby improving the accuracy of whether the battery thermal management control is turned on from many aspects, and improving the solution of the present invention.

[0069] In one embodiment, the following Table 1 is summarized based on the above embodiments to clearly illustrate the strategy of controlling battery thermal management of the present invention.

[0070] Table 1

[0071]

[0072]

[0073] The technical solution of the embodiment of the present invention enables the user to start the thermal management strategy at an appropriate time before charging, thereby ensuring that the battery reaches the optimal charging temperature when the user arrives at the charging station, allowing the user to complete charging in the shortest time.

[0074] In some embodiments, Figure 5 As shown, after step S130, the following steps are also included:

[0075] Step S210: Monitor the current remaining power of the vehicle while traveling to the target charging station.

[0076] Specifically, the real-time remaining power (ie, the current remaining power) of the current vehicle while navigating to the target charging station is monitored in real time.

[0077] Step S220: If it is monitored that the current remaining power is less than the first threshold, the battery thermal management is turned off.

[0078] Specifically, once the current remaining power is less than the first threshold and has not yet reached the target charging station, the battery thermal management is exited in time to reserve appropriate power for the user without affecting the user's charging or subsequent use.

[0079] Beneficial effect: By real-time monitoring of whether the remaining power is less than the first threshold, the battery thermal management is turned off once it is less than the first threshold, thereby realizing timely exit from the battery thermal management based on the current remaining power, and retaining the appropriate power for the user without affecting the user's charging or subsequent use.

[0080] In some embodiments, Figure 6As shown, after step S130, the following steps are also included:

[0081] Step S310: Detect whether the battery thermal management duration after the battery thermal management is turned on reaches a preset duration.

[0082] Specifically, after the battery thermal management is started, it is necessary to detect whether the start-up time has reached a preset time.

[0083] Step S320: If the preset time is reached, the battery thermal management is turned off.

[0084] Specifically, if it is reached, the battery thermal management needs to be turned off in time to prevent the user from turning it on for a long time without charging, causing the thermal management to consume more vehicle power.

[0085] Beneficial effect: By detecting whether the battery thermal management is turned on for a preset time, the battery thermal management will be terminated when it is detected that the battery thermal management time exceeds the preset time, avoiding the situation where the thermal management consumes more vehicle power due to the user not charging for a long time after turning it on, resulting in the remaining power being too low to affect the user's subsequent use of the vehicle.

[0086] In some embodiments, after determining to control the start of battery thermal management, the battery thermal management is turned on through the battery thermal management software, and the battery heating, cooling, and temperature equalization functions are performed according to the actual temperature of the battery to adjust the battery temperature. The battery thermal management system performs battery heating, cooling, and temperature equalization according to the battery heat pipe requirements, the ambient temperature, the optimal charging temperature, and the remaining driving time, and reasonably plans the thermal management time and energy consumption to ensure that the optimal charging temperature is reached when arriving at the charging station, and to reduce energy consumption as much as possible.

[0087] Beneficial effects: This embodiment controls the battery heating power, cooling water pump speed and valve opening according to the ambient temperature, optimal charging temperature and remaining driving time, and can dynamically adjust the battery thermal management rate, which can not only meet the battery to reach the optimal charging temperature when arriving at the charging station, but also minimize the energy consumption caused by battery thermal management.

[0088] Figure 7 The schematic diagram of the structure of the embodiment of the control device for thermal management of batteries before charging of the present invention is shown. Figure 7 As shown, the device 400 includes: a detection module 410 , a monitoring module 420 and a thermal management activation module 430 .

[0089] The detection module 410 is used to detect whether the current remaining power of the vehicle battery is greater than a first threshold value, and to detect whether the current condition meets a preset condition; wherein the current condition is obtained according to the current vehicle condition and / or the target charging station information;

[0090] The monitoring module 420 is used to monitor the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station in combination with the received real-time navigation information if the detection results are all yes;

[0091] The thermal management activation module 430 is used to activate battery thermal management if it is monitored that the current remaining mileage is less than or equal to the second threshold and the current remaining driving time is less than or equal to the third threshold.

[0092] Beneficial effects: By detecting whether the current remaining power of the vehicle battery is greater than the first threshold, and detecting whether the current conditions meet the preset conditions; if the detection results are both yes, then combined with the received real-time navigation information, the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored; if it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, the battery thermal management is turned on. A comprehensive judgment is made by combining the remaining power, current conditions, and real-time remaining mileage and remaining driving time, so that the best control time for turning on the battery thermal management can be determined, so that the vehicle can reach the target charging station and charge successfully.

[0093] It should be noted that the control device for thermal management of the battery before charging provided in the above embodiment and the control method for thermal management of the battery before charging provided in the above embodiment belong to the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment and will not be repeated here.

[0094] Figure 8 A schematic diagram of the structure of an embodiment of the device of the present invention is shown, which shows a schematic diagram of the structure of a computer system suitable for implementing the device of the embodiment of the present invention. The specific embodiment of the present invention does not limit the specific implementation of the device.

[0095] See also Figure 8 As shown, the device includes: a controller; a memory for storing one or more programs, and when the one or more programs are executed by the controller, the above-mentioned control method for thermal management of the battery before charging is executed.

[0096] Please continue reading Figure 8As shown, the computer system 500 of the device includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 502 or the program loaded from the storage part 508 to the random access memory (RAM) 503, such as executing the method in the above embodiment. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, ROM 502 and RAM 503 are connected to each other through a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0097] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed so that a computer program read therefrom is installed into the storage section 508 as needed.

[0098] In particular, according to an embodiment of the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present invention are executed.

[0099] Another aspect of the present invention further provides a computer-readable storage medium, which stores at least one executable instruction. When the executable instruction is executed on a device / equipment, the device / equipment executes the control method for thermal management of a battery before charging as in any of the above embodiments.

[0100] Beneficial effects: By detecting whether the current remaining power of the vehicle battery is greater than the first threshold, and detecting whether the current conditions meet the preset conditions; if the detection results are both yes, then combined with the received real-time navigation information, the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored; if it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, the battery thermal management is turned on. A comprehensive judgment is made by combining the remaining power, current conditions, and real-time remaining mileage and remaining driving time, so that the best control time for turning on the battery thermal management can be determined, so that the vehicle can reach the target charging station and charge successfully.

[0101] It should be noted that the computer-readable medium shown in the embodiment of the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable computer program is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. A computer program contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0102] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present invention. Among them, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0103] The units involved in the embodiments of the present invention may be implemented by software or hardware, and the units described may also be arranged in a processor. The names of these units do not, in some cases, limit the units themselves.

[0104] According to one aspect of an embodiment of the present invention, a computer system is also provided, including a central processing unit (CPU), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage portion into a random access memory (RAM), such as executing the method in the above embodiment. In RAM, various programs and data required for system operation are also stored. CPU, ROM and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0105] The following components are connected to the I / O interface: an input part including a keyboard, a mouse, etc.; an output part including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker; a storage part including a hard disk, etc.; and a communication part including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication part performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as needed. Removable media, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., are installed on the drive as needed so that the computer program read therefrom is installed into the storage part as needed.

[0106] The above contents are only preferred exemplary embodiments of the present invention and are not intended to limit the implementation scheme of the present invention. A person skilled in the art can easily make corresponding changes or modifications based on the main concept and spirit of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope required by the claims.

Claims

1. A control method for thermal management of a battery before charging, characterized in that: The method comprises: Detecting whether the current remaining power of the vehicle battery is greater than a first threshold, and detecting whether the current condition meets a preset condition; wherein the current condition is obtained according to the current vehicle condition and / or the target charging station information; If the test results are all yes, then the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station are monitored in combination with the received real-time navigation information; If it is monitored that the current remaining mileage is less than or equal to the second threshold, and the current remaining driving time is less than or equal to the third threshold, battery thermal management is turned on.

2. The method according to claim 1, characterized in that The step of detecting whether the current remaining power of the vehicle battery is greater than a first threshold and whether the current condition satisfies a preset condition further includes: If the result of any one of the tests is no, battery thermal management will no longer be enabled during the current navigation driving.

3. The method according to claim 1, characterized in that The preset conditions include that the target charging station includes an AC charging pile; The step of detecting whether the current condition meets the preset condition further includes: Determining whether the target charging station includes an AC charging pile according to the target charging station information; If an AC charging pile is included, the current condition satisfies the preset condition; If the AC charging pile is not included, the current condition does not meet the preset condition.

4. The method according to claim 1, characterized in that: The preset condition includes that a boost device is currently provided in the vehicle; The step of detecting whether the current condition meets the preset condition further includes: Determining whether a boost device is provided in the current vehicle according to the current vehicle condition; If a boost device is provided, the current condition satisfies the preset condition; If the boost device is not provided, the current condition does not satisfy the preset condition.

5. The method according to claim 1, characterized in that The preset conditions include that the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage; The step of detecting whether the current condition meets the preset condition further includes: Determine the current vehicle DC charging voltage according to the current vehicle condition, and determine the DC charging pile voltage according to the target charging station information; Detecting whether the DC charging pile voltage is greater than or equal to the current vehicle DC charging voltage; If so, the current condition satisfies the preset condition; If not, the current condition does not satisfy the preset condition.

6. The method according to claim 1, characterized in that If it is monitored that the current remaining mileage is less than or equal to the second threshold value, and the current remaining driving time is less than or equal to the third threshold value, after starting the battery thermal management step, the method further includes: Monitor the current remaining power of the vehicle while driving to the target charging station; If it is monitored that the current remaining power is less than the first threshold, the battery thermal management is turned off.

7. The method according to claim 1, characterized in that If it is monitored that the current remaining mileage is less than or equal to the second threshold value, and the current remaining driving time is less than or equal to the third threshold value, after starting the battery thermal management step, the method further includes: Check whether the battery thermal management duration after the battery thermal management is turned on reaches the preset duration; If the preset time is reached, the battery thermal management is turned off.

8. A control device for thermal management of a battery before charging, characterized in that: The device comprises: A detection module, used to detect whether the current remaining power of the vehicle battery is greater than a first threshold, and to detect whether the current condition meets a preset condition; wherein the current condition is obtained according to the current vehicle condition and / or the target charging station information; A monitoring module, for monitoring the current remaining mileage and the current remaining driving time of the current vehicle to the target charging station in combination with the received real-time navigation information if the detection results are all yes; The thermal management activation module is used to activate battery thermal management if it is monitored that the current remaining mileage is less than or equal to the second threshold and the current remaining driving time is less than or equal to the third threshold.

9. A device, characterized in that: include: Controller; A memory for storing one or more programs, which, when executed by the controller, enables the controller to implement the control method for thermal management of a battery before charging as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The storage medium stores at least one executable instruction, and when the executable instruction is executed on the device / equipment, the device / equipment executes the operation of the control method for thermal management of a battery before charging as claimed in any one of claims 1 to 7.

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