Vehicle charging thermal management method, apparatus, and medium

Abstract

A charging thermal management method, device, and medium for a vehicle (1000). The charging thermal management method includes the steps of: acquiring current vehicle location, current battery charge, current battery temperature, and battery charging parameter information; acquiring charging device charging parameter information of the corresponding charging device based on the current vehicle location; and determining a thermal management strategy for the battery (100) based on the current battery charge, current battery temperature, battery charging parameter information, and charging device charging parameter information. The battery (100) temperature can be pre-adjusted to suit the output capacity of the charging pile (400), thereby effectively reducing charging time.

Description

Technical Field

[0001] This disclosure relates to the field of battery thermal management technology, and more particularly to a method, apparatus and medium for charging thermal management of a vehicle. Background Technology

[0002] In recent years, vehicle manufacturers and battery manufacturers have successively launched new high-rate charging protocols such as 6C charging and 670A charging. With the continuous popularization and innovation of high-current charging standards, the market is flooded with both old and new fast charging piles, and the differences in charging output range among charging piles are becoming increasingly significant. The maximum output current of public charging piles ranges from tens of amperes to hundreds of amperes, making it difficult for car owners to choose a charging pile.

[0003] Technical problem of the present invention

[0004] This disclosure aims to at least address one of the technical problems existing in the prior art. Therefore, one object of this disclosure is to provide a method, apparatus, device, and medium for vehicle charging thermal management to solve the problems in the prior art.

[0005] Technical solutions

[0006] An embodiment of the first aspect of this disclosure provides a method for thermal management of vehicle charging. The method includes the following steps: obtaining current vehicle location, current battery charge, current battery temperature, and battery charging parameter information; obtaining charging device charging parameter information of the corresponding charging device based on the aforementioned current vehicle location; and determining the thermal management strategy of the battery based on the aforementioned current battery charge, current battery temperature, battery charging parameter information, and charging device charging parameter information.

[0007] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery charge, the battery temperature, the battery charging parameter information, and the charging device charging parameter information includes: determining matching charging parameters based on the battery charging parameter information and the charging device charging parameter information; confirming the target battery temperature based on the matching charging parameters; and confirming the thermal management strategy of the battery based on the current battery temperature and the target battery temperature.

[0008] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: determining the first remaining charge after the current battery temperature is adjusted to the target battery temperature; determining the compensated target battery temperature based on the first remaining charge; and determining the thermal management strategy of the battery based on the current battery temperature and the compensated target battery temperature.

[0009] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: determining the second remaining battery power of the vehicle from the current vehicle location to the location of the charging device based on the current vehicle location and the location of the charging device; determining the compensated target battery temperature based on the second remaining battery power; and determining the thermal management strategy of the battery based on the current battery temperature and the compensated target battery temperature.

[0010] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: determining the first remaining battery charge after the current battery temperature is adjusted to the target battery temperature; determining the second remaining battery charge when the vehicle travels from the current vehicle location to the location of the charging device based on the current vehicle location and the location of the charging device; determining the compensated target battery temperature based on the first remaining battery charge and the second remaining battery charge; and determining the thermal management strategy of the battery based on the current battery temperature and the compensated target battery temperature.

[0011] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: determining the distance from the vehicle to the charging device based on the current vehicle location and the location of the charging device; and determining the thermal management strategy of the battery based on the temperature difference between the current battery temperature and the target battery temperature and the distance from the vehicle, wherein the thermal management strategy includes the correspondence between the distance from the vehicle and the battery temperature.

[0012] In some embodiments, the step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: determining the arrival time of the vehicle to the charging device based on the current vehicle location and the location of the charging device; and determining the thermal management strategy of the battery based on the temperature difference between the current battery temperature and the target battery temperature and the arrival time, wherein the thermal management strategy includes the correspondence between the arrival time of the vehicle and the battery temperature.

[0013] In some embodiments, the step of determining the thermal management strategy of the battery based on the aforementioned current battery level, current battery temperature, battery charging parameter information, and charging device charging parameter information includes: obtaining a charging waiting time from the charging device, and determining the thermal management strategy of the battery based on the aforementioned charging waiting time, the aforementioned current battery level, current battery temperature, battery charging parameter information, and charging device charging parameter information. The aforementioned charging waiting time is obtained based on the usage status and reservation status of the charging device.

[0014] In some embodiments, the step of obtaining the charging parameter information of the corresponding charging device based on the current vehicle location further includes: querying the charging parameter information of one or more charging devices within a preset range based on the current vehicle location; determining the predicted charging time for the one or more charging devices based on the charging parameter information of the one or more charging devices and the battery charging parameters; providing the user with an option to select a charging device based on the predicted charging time; and determining the charging parameter information of the corresponding charging device in response to the user's selected option.

[0015] In some embodiments, the aforementioned method further includes the steps of: adjusting the temperature of the aforementioned battery according to the aforementioned thermal management strategy; and adjusting the charging current for charging the aforementioned battery according to the battery temperature and battery capacity in response to a charging command.

[0016] In some embodiments, the aforementioned battery charging parameter information includes at least one of the battery charging current or charging voltage corresponding to the aforementioned battery, and the correspondence between it and the battery capacity and battery temperature. In some embodiments, the aforementioned charging device charging parameter information includes the charging current or charging voltage corresponding to the aforementioned charging device.

[0017] In some embodiments, the aforementioned matching charging parameters include the charging current or charging voltage supported by the aforementioned battery charging parameter information and the aforementioned charging device charging parameter information.

[0018] In some embodiments, the aforementioned matching charging parameters include the maximum charging current supported by the aforementioned battery charging parameter information and the aforementioned charging device charging parameter information.

[0019] In some embodiments, the aforementioned thermal management strategy includes adjusting the temperature of the aforementioned battery to the aforementioned target battery temperature by controlling at least one of the heater, cooler, motor operating mode, or kinetic energy recovery mode.

[0020] An embodiment of the second aspect of this disclosure provides a charging control method for a vehicle. The method includes the following steps: displaying a first interface and detecting a first operation, wherein the first interface is used to detect the first operation, and the first operation is used to trigger a query for a first charging device; in response to the detected first operation, displaying a second interface, wherein the second interface includes a charging device identifier and charging time for one or more first charging devices; detecting a second operation, wherein the second operation is used to select a second charging device from the one or more first charging devices; and in response to the detected second operation, displaying a third interface, wherein the third interface includes the charging time of the second charging device, wherein the charging time is determined according to the charging device charging parameters of the charging device.

[0021] In some embodiments, the aforementioned method further includes the step of updating the charging time of the aforementioned third interface in response to changes in at least one of the vehicle's location, battery charge, and the usage status of the aforementioned second charging device.

[0022] In some embodiments, the aforementioned method further includes the following steps: in response to the received second operation, performing a thermal management strategy on the aforementioned vehicle according to the aforementioned second charging device to adjust the battery temperature of the vehicle.

[0023] In some embodiments, the aforementioned second operation is a voice command operation that includes the charging device identifier of the aforementioned first charging device, and the aforementioned first operation is a voice command operation or a touch operation.

[0024] In some embodiments, the aforementioned method further includes the step of: reserving a second charging device for the vehicle in response to a received second operation.

[0025] In some embodiments, the step of displaying a second interface in response to the detected first operation, wherein the second interface includes the charging device identifier of one or more first charging devices and the charging time, includes the following sub-steps: determining matching charging parameters based on the battery charging parameter information of the vehicle and the charging device charging parameter information of the one or more first charging devices; obtaining the charging duration corresponding to the one or more first charging devices based on the battery capacity of the vehicle and the matching charging parameters; determining the arrival time of the vehicle to the one or more first charging devices based on the location of the vehicle and the location of the one or more first charging devices; obtaining the charging time based on the charging duration and the arrival time; and displaying the second interface, wherein the second interface includes the charging device identifier of one or more first charging devices and the charging time.

[0026] In some embodiments, the aforementioned battery charging parameter information includes the correspondence between the battery capacity, battery temperature, and battery charging current of the aforementioned battery; the aforementioned charging device charging parameter information includes the charging current corresponding to the aforementioned charging device.

[0027] In some embodiments, the aforementioned battery charging parameter information includes the correspondence between the battery capacity, battery temperature, and battery charging voltage of the aforementioned battery; the aforementioned charging device charging parameter information includes the charging voltage corresponding to the aforementioned charging device.

[0028] In some embodiments, the aforementioned charging time includes: charging duration, or the total duration of arrival and charging duration.

[0029] In some embodiments, the aforementioned thermal management strategy includes adjusting the temperature of the aforementioned battery to a target battery temperature corresponding to the aforementioned second charging device by controlling at least one of the heater, cooler, motor operating mode, or kinetic energy recovery mode.

[0030] An embodiment of the third aspect of this disclosure provides a computer device including a processor and a memory, the memory storing a computer program that, when executed by the processor, causes the processor to implement the method of any of the above embodiments.

[0031] An embodiment of the fourth aspect of this disclosure provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method of any of the above embodiments.

[0032] An embodiment of the fifth aspect of this disclosure provides a computer program product including a computer program, wherein the computer program, when executed by a processor, implements the method of any of the above embodiments.

[0033] An embodiment of the sixth aspect of this disclosure provides a vehicle including a battery and a computer device as described in the above embodiments, wherein the computer battery is electrically connected to the battery and is used to control the thermal management of the battery.

[0034] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0035] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this disclosure and should not be construed as limiting the scope of this disclosure.

[0036] Figure 1 This is a schematic diagram of the structure of a vehicle according to some embodiments of the present disclosure;

[0037] Figure 2 This is an exploded structural diagram of a battery according to some embodiments of this disclosure;

[0038] Figure 3 This is a schematic diagram illustrating a vehicle charging at a charging station, representing some embodiments of this disclosure.

[0039] Figure 4 This is a schematic diagram of battery charging curves provided in some embodiments of this disclosure;

[0040] Figure 5A schematic diagram of a vehicle remote reservation charging station provided in some embodiments of this disclosure;

[0041] Figure 6 A flowchart illustrating a battery charging thermal management control method provided in some embodiments of this disclosure;

[0042] Figure 7a This is a schematic diagram of the data frame structure sent by a vehicle to a server according to some embodiments of this disclosure;

[0043] Figure 7b This is a schematic diagram of the data frame structure sent from the charging station to the server according to some embodiments of this disclosure;

[0044] Figure 7c This is a schematic diagram of the data frame structure from the vehicle server to the vehicle in some embodiments of this disclosure;

[0045] Figure 8 A hardware schematic diagram of a thermal management system provided for some embodiments of this disclosure;

[0046] Figure 9 This is a schematic diagram of battery charging curves provided in some embodiments of this disclosure;

[0047] Figure 10 A schematic diagram illustrating remote reservation of charging stations via mobile terminals provided in some embodiments of this disclosure;

[0048] Figure 11 A flowchart illustrating a battery charging thermal management control method provided in some embodiments of this disclosure;

[0049] Figure 12 This is a schematic diagram illustrating a vehicle reserving a charging station at a charging pile, as provided in some embodiments of this disclosure.

[0050] Figure 13 A flowchart illustrating a battery charging thermal management control method provided in some embodiments of this disclosure;

[0051] Figure 14 This is a first schematic diagram of a human-computer interaction interface provided in some embodiments of the present disclosure;

[0052] Figure 15 This is a second schematic diagram of a human-computer interaction interface provided in some embodiments of the present disclosure;

[0053] Figure 16 A third schematic diagram illustrating the human-computer interaction interface provided in some embodiments of this disclosure;

[0054] Figure 17 A fourth schematic diagram illustrating the human-computer interaction interface provided in some embodiments of this disclosure;

[0055] Figure 18This is a first schematic diagram of a human-computer interaction interface provided in some embodiments of the present disclosure;

[0056] Figure 19 A flowchart illustrating a method for querying a charging device provided in some embodiments of this disclosure;

[0057] Figure 20 A schematic diagram of a computer device provided for some embodiments of this disclosure.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1000 vehicles; 100 batteries; 200 controllers; 300 motors;

[0060] 10. Housing; 11. First section; 12. Second section; 20. Individual battery cells;

[0061] 2000 charging stations; 400 charging piles;

[0062] 3000 servers;

[0063] 5000 mobile terminals;

[0064] 4000 vehicles;

[0065] 800 display screen; U805 fourth interface; U810 first interface; U820 second interface; U830 third interface.

[0066] Specific embodiments of the present invention

[0067] The embodiments of the technical solutions disclosed herein will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solutions disclosed herein and are therefore intended to limit the scope of protection of this disclosure.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and foregoing description of the drawings of this disclosure are intended to cover non-exclusive inclusion.

[0069] In the description of the embodiments of this disclosure, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0070] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0071] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0072] In the description of the embodiments of this disclosure, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0073] In the description of the embodiments of this disclosure, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the accompanying drawings. They are used only for the convenience of describing the embodiments of this disclosure and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0074] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0075] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0076] This disclosure notes that in recent years, as more and more vehicle manufacturers and battery manufacturers have continuously launched new high-rate charging protocols, the output range of charging power supported by non-vehicle chargers (charging stations) in the market varies greatly. The maximum output current of public charging stations ranges from tens of amperes to hundreds of amperes. How to help car owners (users) make full use of the charging capacity of charging stations and reduce charging time is an urgent issue.

[0077] Based on the above considerations, the present invention provides a method for thermal management of vehicle charging, thereby adjusting the thermal state of the battery to match the fast charging requirements of the charging pile before the vehicle arrives at the charging station.

[0078] The battery cells disclosed in this disclosure can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system for such an electrical device can be constructed using battery cells and batteries incorporating the specifications of this disclosure.

[0079] This disclosure provides a charging thermal management method and apparatus for vehicles, including but not limited to passenger cars, commercial vehicles, engineering vehicles, and Automated Guided Vehicles (AGVs). The vehicle battery can be a non-replaceable battery that supports full vehicle charging, or a replaceable battery that can be detached from the vehicle body for recharging.

[0080] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example according to an embodiment of this disclosure.

[0081] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this disclosure. The vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle (hereinafter referred to as an electric vehicle). A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000.

[0082] In some embodiments of this disclosure, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0083] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery provided in some embodiments of the present disclosure. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, jointly defining a space for accommodating the battery cell 20. The second portion 12 may be a hollow structure with one open end, and the first portion 11 may be a plate-like structure, covering the open side of the second portion 12 so that the first portion 11 and the second portion 12 jointly define the space; alternatively, the first portion 11 and the second portion 12 may both be hollow structures with one open side, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0084] In battery 100, there can be multiple battery cells 20, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 20 are connected in both series and parallel configurations. Multiple battery cells 20 can be directly connected in series, parallel, or in a mixed manner, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, battery 100 can also be composed of multiple battery cells 20 first connected in series, parallel, or in a mixed manner to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed manner to form a whole, which is also housed within the housing 10. Battery 100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0085] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0086] Reference Figure 3 , Figure 3This is a schematic diagram illustrating a scenario where a vehicle is charging at a charging station, as provided in some embodiments of this disclosure. A charging station refers to a facility or location that includes one or more on-board chargers or off-board chargers (charging piles) for charging electric vehicles and monitoring the status of the charging equipment. A charging pile refers to a dedicated device that provides electrical energy to the power battery of an electric vehicle, including AC charging piles, DC charging piles, and off-board chargers. For example, in... Figure 3 The charging station 2000 is equipped with one charging pile 400. The charging pile 400 is electrically connected to the vehicle 1000 via a charging gun to charge the vehicle 1000's battery 100. The charging station 2000 can be a commercially installed station in public parking lots, highway toll stations, etc., comprising multiple public charging piles with power ranging from 200 kW to 600 kW; or it can be an individual user installed in residential parking lots, including parking spaces for home charging equipment with power ranging from 5-10 kW. There are no restrictions.

[0087] The discloser notes that the ideal operating temperature of a power battery and the ideal high-current charging temperature often do not perfectly coincide. For example, the ideal operating temperature of a lithium battery is typically between 20 and 35 degrees Celsius. When the battery temperature is below this range, the battery capacity decays and the power delivery performance decreases; when the battery temperature is above this range, the risk of self-discharge increases, and the usable capacity and lifespan are reduced. During fast charging, the ideal charging temperature of a lithium battery is often higher than this temperature range. Taking a certain model of lithium battery as an example, the correspondence between the state of charge (SoC), ideal charging temperature, and charging current of a lithium battery can be referred to in Table 1 below. In this disclosure, battery capacity is usually expressed as state of charge (SoC), but battery capacity can also be expressed as ampere-hours (Ah). In addition, the charging MAP can also be expressed as the correspondence between the state of charge, charging temperature, and charging voltage of a lithium battery, which will not be elaborated here.

[0088] Table 1. Lithium-ion battery cell charging MAP

[0089]

[0090] Referring to Table 1, taking a lithium battery with a SoC of 30% as an example, the maximum charging current for this lithium battery during the charging process from 30% to 40% is 400 amps (see row 13, "Temperature", column 40%) in Table 1. When charging at the maximum charging current of 400 amps, the ideal charging temperature for this lithium battery is approximately 50 degrees Celsius. That is, the lithium battery can be charged at the maximum charging current of 400 amps when the battery temperature is around 50 degrees Celsius. If the temperature of the lithium battery drops to 25 degrees Celsius, the charging device can only charge the lithium battery with a maximum current of 270 amps (see row 11, "Temperature", column 40%) in Table 1.

[0091] Reference Figure 3 and Figure 4 . Figure 4 This is a schematic diagram showing the changes in System-on-Chips (SoC) and charging current over time for vehicle 1000 during charging. When vehicle 1000 is in motion, its thermal management system regulates the temperature of battery 100 to between 20 and 35 degrees Celsius (e.g., 30 degrees Celsius). When vehicle 1000 arrives at charging station 2000 and connects to charging pile 400 to charge battery 100, the battery management system first preheats battery 100 to the charging temperature (45 degrees Celsius) corresponding to the maximum charging current for the current battery charge (SoC of 30%) during the first 5 minutes of charging. No charging current flows during this preheating phase. Once battery 100 reaches 45 degrees Celsius, charging pile 400 then rapidly charges battery 100 with a maximum charging current of 320 amps, gradually decreasing the maximum charging current as the battery charge increases. See also... Figure 4 The total time required to charge battery 100 from 30% to 80% is 23.7 minutes. The thermal management system heats battery 100 using methods including, but not limited to, high-frequency charging and discharging between battery cells, heating via an electric heating mesh surrounding the battery cells, and utilizing the heat generated during charging. Therefore, the charging station 400 needs to wait for battery 100 to heat to a specific temperature before it can charge battery 100 using its supported high-rate charging protocol. The preheating phase does not utilize the charging station 400's charging capacity, resulting in wasted time.

[0092] Furthermore, according to other charging schemes known to the present discloser, when the temperature of battery 100 is lower than the ideal charging temperature, charging pile 400 first charges battery 100 of vehicle 1000 with a small to medium current (e.g., 250 amps) lower than the maximum charging current, and gradually increases the charging current as the temperature of battery 100 rises until the maximum charging current is reached. Although no separate preheating stage is set in this scheme, charging pile 400 cannot quickly charge battery 100 at the maximum charging current throughout the entire charging stage, which also prolongs the charging time of battery 100.

[0093] On the other hand, if the temperature of the battery 100 is higher than 55 degrees Celsius before charging, the thermal management system of the vehicle 1000 will first cool the battery 100 down to below 50 degrees Celsius before charging it. This will not be elaborated further here.

[0094] Some embodiments of this disclosure provide a method for thermal management of vehicle charging. The method of the embodiments of this disclosure can be... Figure 5 The vehicle 1000 and the server 3000 may each execute all the steps individually, or execute only a portion of the steps; this is not limited to this. For example, in this embodiment, the vehicle 1000 executes the steps of the method. See also... Figure 5 Vehicle 1000 establishes a communication link with server 3000 via wireless communication methods such as cellular networks. Server 3000 establishes a communication link with charging station 2000 via wireless or wired communication methods. Server 3000 can directly connect to charging station 2000, or indirectly obtain status information of charging station 2000 through one or more other servers. For example, server 3000 is a management platform built by the vehicle manufacturer or battery manufacturer, and vehicle 1000 can interact with server 3000 through an in-vehicle application. Server 3000 obtains status information of charging station 2000 by connecting to an information service platform set up by the charging station operator. This information service platform is used to summarize information such as charging station location, charging pile information, whether it is in use, and available reservation time slots.

[0095] The method in this embodiment includes the following steps: Vehicle 1000 acquires its current vehicle location, current remaining battery power, current battery temperature, and battery charging parameter information. Based on its current vehicle location, Vehicle 1000 acquires the charging parameter information of the corresponding charging equipment (charging pile 400). Based on the current remaining battery power, current battery temperature, battery charging parameter information, and charging equipment parameter information, Vehicle 1000 determines a thermal management strategy for the battery 100.

[0096] In one or more embodiments, battery charging parameter information includes the battery capacity of battery 100, and also includes the correspondence between the maximum charging current, state of charge, and battery temperature of battery 100. Charging device charging parameter information includes the maximum charging voltage supported by charging pile 400, maximum charging current, and whether it can be scheduled. Battery capacity reflects the amount of electrical energy stored in the battery, typically expressed in ampere-hours (Ah). The thermal management strategy of battery 100 includes a control strategy that adjusts the operating parameters of at least one of the heater, cooling pipe, motor 30 operating mode, and kinetic energy recovery mode to raise or lower battery 100 to a target temperature, or changes the target temperature uniformity of each battery pack in battery 100. In some embodiments, the aforementioned target temperature is determined based on the correspondence between the maximum charging current, battery capacity, and battery temperature of battery 100 and the maximum charging current supported by charging pile 400.

[0097] Therefore, according to the method of this embodiment, the user can determine the scheme for adjusting the thermal management strategy of the battery 100 in advance while driving the vehicle 1000 to the charging station 2000, so that when the vehicle 1000 arrives at the charging station 2000 for charging, the battery temperature of the battery 100 is adapted to the output capacity of the charging pile 400, thereby effectively reducing the charging time.

[0098] Some embodiments of this disclosure also provide a method for thermal management of vehicle charging.

[0099] Figure 6 An interaction diagram illustrating the battery charging control method provided in this embodiment. This method can be... Figure 5 Vehicle 1000 or server 3000 may execute all the steps individually, or execute a portion of the steps individually; this is not limited to any one of them. This method includes the following steps:

[0100] Step S101: Obtain the user's charging query request.

[0101] See appendix Figure 14 The vehicle's infotainment system (hereinafter referred to as the vehicle system) receives charging query requests from users. For example, a user can activate the voice assistant application installed on the vehicle system from any interface and input the command "I want to charge" to trigger the vehicle 1000 to query charging stations. Alternatively, the user can trigger the query by clicking on the human-machine interface of the vehicle system's display screen. The server 3000 can obtain users' charging query requests through the vehicle 1000.

[0102] In other embodiments, when the vehicle 1000 detects that the current remaining charge (SoC) of the battery 100 is lower than a set threshold, the vehicle 1000 actively triggers a charging query request without needing to obtain the charging query request from the user, thereby reducing the user's operational burden.

[0103] Step S102: Based on the current vehicle location and battery information, query information on nearby charging stations.

[0104] Vehicle 1000 transmits its current vehicle location and battery information to server 3000 via a 4G / 5G wireless link. Server 3000 then queries nearby charging stations based on the received vehicle location. The vehicle location can be a geographic coordinate obtained through a Global Positioning System (GPS) device installed on vehicle 1000 or a user's mobile terminal. In some embodiments, the vehicle location can also be obtained based on indoor positioning technology, for example, by receiving near-field iBeacon signals from iBeacon base stations installed within the charging station, thereby ensuring that the battery temperature can be pre-adjusted while queuing at the charging station. The battery information may include the battery 100's SoC (System-on-Chips), State of Health (SoH), battery identification, battery model, battery temperature, and battery charging parameters. At least some of these parameters can be viewed through vehicle 1000's infotainment system or dashboard. The battery charging parameter information includes at least a portion of the battery's supported required charging current, required charging voltage, required charging power, charging protocol identifier, or a mapping table (e.g., Table 1) characterizing the relationship between the battery's state of charge, temperature, and charging current. In some embodiments, the required charging current is the maximum charging current supported by the battery; the required charging voltage is the maximum charging voltage supported by the battery; and the required charging power is the maximum charging power supported by the battery. In other embodiments, for safety and other considerations, the required charging current may be slightly lower than the maximum charging current supported by the battery. In this embodiment, the battery charging parameter information includes the maximum charging current and battery capacity corresponding to the current SoC of battery 100. In some embodiments, the battery charging parameter information is stored in the memory chip of the battery management system of battery 100 during the battery 100 manufacturing stage. In other embodiments, server 3000 may also store all or at least a portion of the battery charging parameter information corresponding to the battery model of battery 100. For example, server 3000 stores a mapping table (see Table 1) characterizing the relationship between the battery's state of charge, battery temperature, and battery charging current. When server 3000 receives battery information containing the identifier of battery 100 from vehicle 1000, server 3000 queries a mapping table showing the correspondence between the state of charge, battery temperature, and battery charging current of battery 100 based on the battery 100's identifier. At this time, the battery charging parameter information may not include this mapping table, but only the battery 100's identifier and the battery 100's maximum charging current or maximum charging voltage. This saves on the amount of data transmitted between vehicle 1000 and server 3000, and also facilitates timely updates of the mapping table stored on server 3000 by the battery manufacturer.The aforementioned battery charging parameter information may be wholly or partially the same as the information in the handshake message between the vehicle and the charging pile when the vehicle establishes an electrical connection with the off-board charger (charging pile).

[0105] The battery temperature of battery 100 can be the highest temperature, average temperature, or battery temperature displayed by the vehicle's infotainment system / instrument panel, among other things, of the multiple battery cells 20 constituting battery 100. The data frame sent by vehicle 1000 to server 3000 for querying nearby charging stations can be found in [reference needed]. Figure 7a By reading the data packets between vehicle 1000 and server 3000, the charging parameter information of battery 100 can be obtained.

[0106] Step S103: Obtain information on the location of charging stations, their availability for reservation, and supported charging protocols.

[0107] Server 3000 uses the geographic coordinates of vehicle 1000 (or a combination of geographic coordinates and the current SoC) to query charging stations within a certain distance of vehicle 1000 via a geographic information system, and obtains the geographical location, charging station availability, and supported charging protocol information of these charging stations. For example, server 3000 periodically receives the geographical location, charging station availability, supported charging protocol name, maximum output power, maximum output voltage, or maximum output current of each charging station and caches it in a database. When server 3000 receives a charging query request from vehicle 1000, it directly queries the database for the location, availability, and supported charging parameters of the charging stations, thereby improving the speed of the query operation.

[0108] In some embodiments, the data frames sent by each charging station to the server 3000 can be referred to... Figure 7b By reading the data packets sent by the charging station to the server, the charging parameters of the charging equipment can be obtained. Geographic location can be geographic coordinates; availability information can include whether one or more charging piles are in use, idle, available in 15 minutes, or there are two vehicles in the charging queue; supported charging protocol information can include charging parameters such as the maximum output voltage, maximum output current, or maximum output power supported by the charging pile. For example, the information sent by charging station 2000 to server 3000 may include the availability and supported charging protocols of all charging piles, or it may include only the availability and supported maximum charging current and / or maximum charging voltage of one or more idle charging piles that support fast charging protocols. Additionally, each charging pile can also send its own charging parameter information to the server. In some embodiments, the charging parameter information sent by the charging pile to the server may be substantially the same as the handshake message between the charging pile and the vehicle when establishing an electrical connection.

[0109] Step S104: Send the filtered charging thermal management strategy.

[0110] Based on the usage information of the charging piles, server 3000 filters out one or more charging stations with available or soon-to-be-available charging piles that can be reserved. Then, based on information such as vehicle 1000's model, current geographical coordinates, SoC, charging station's geographical location, and road planning, server 3000 determines the predicted arrival time or predicted arrival time of vehicle 1000 from its current location to each charging station and sends this information to vehicle 1000.

[0111] Server 3000 or vehicle 1000 matches the battery charging parameters supported by vehicle 1000's battery 100 with the charging equipment charging parameters supported by the available charging stations, and determines the shortest predicted total charging time T for vehicle 1000 to charge to the preset charging capacity at each charging station based on the matched charging parameters. total Among them, the predicted total charging time T total It can be determined by the predicted arrival time T jouney And the predicted shortest charging time T charge The sum is obtained by adding them together. The server capacity is 3000 or the vehicle capacity is 1000, based on the predicted total charging time T. total Or predict the shortest charging time T charge The system recommends charging stations to users. In some embodiments, the preset charging level can be set by the user according to their own driving habits (e.g., 100% or 80%), because the charging speed of the vehicle's battery drops rapidly in the last 20% of charging, resulting in a longer charging time. Allowing the user to set the preset charging level helps them better predict the actual charging time. The data frames provided by server 3000 to vehicle 1000 can be referenced... Figure 7c By reading the data packets sent to the vehicle from the server, information related to the thermal management strategy can be obtained. Based on this data frame, vehicle 1000 displays charging station information to the user via a human-machine interface (see reference). Figure 15 This interface can include the charging station name, location, estimated arrival time, predicted charging time, and remaining SoC upon arrival, thus providing the user with a more accurate charging prediction time. Additionally, in some embodiments, the arrival time can be calculated as the duration from the current time to the time the user has scheduled to start charging at charging station 400. For example, if the current time is 9 PM and the user has scheduled to charge at charging station 400 at 9:30 PM, the arrival time would be 30 minutes.

[0112] Regarding the predicted charging time, the server 3000 calculates the shortest charging time based on the matching of the battery 100 of the vehicle 100 under the current SoC with at least one of the maximum charging current, maximum charging voltage, or maximum charging power supported by the charging pile. In this embodiment, the server 3000 calculates the expected shortest charging time based on the matching of the maximum charging current of the battery 100 of the vehicle 100 under the current SoC with the maximum charging current supported by the charging pile.

[0113] Specifically, the charging MAP of the charging protocol jointly supported by vehicle 1000 and idle charging pile 400 located at charging station 2000 is shown in Table 1. Battery 100 supports a maximum charging current of no more than 400 amps when its SoC is 30%, and charging pile 400 supports a charging protocol with a maximum charging current of no more than 670 amps. Therefore, the charging protocol matched between battery 100 and charging pile 400 is a maximum charging current of 400 amps. That is, the matched charging parameters include a maximum charging current of no more than 400 amps. Additionally, server 3000 can obtain, by consulting Table 1, that the target battery temperature corresponding to battery 100's SoC of 30% battery capacity and a matched charging parameter of 400 amps is 50 degrees Celsius (see row "Temperature 13"). Thus, the target temperature for preheating can be obtained. In some embodiments, for reasons such as improving safety, the matched charging parameters may also be less than the maximum charging current, for example, a matched charging parameter of 370 amps. In some embodiments, the matched charging parameters may also be the maximum charging voltage jointly supported by battery 100 and charging pile 400.

[0114] Based on the battery capacity and SoC of the battery 100 of the vehicle 1000, and referring to row "Temperature 13" in Table 1, server 3000 calculates the following times for charging battery 100 from 30% SoC to 40% at a maximum charging current of 400 amps, charging battery 100 from 40% to 50% at a maximum charging current of 390 amps, charging battery 100 from 50% to 60% at a maximum charging current of 380 amps, charging battery 100 from 60% to 70% at a maximum charging current of 370 amps, and charging battery 100 from 70% to 80% at a maximum charging current of 280 amps, thus obtaining the predicted shortest charging time T. charge = t1 + t2 + t3 + t4 + t5. Taking the calculation method of duration t1 as an example, duration t1 = battery capacity × change in SoC / (charging current × charging voltage) = 60kWh × 10% / (400A × 700V) = 1.4min, where the battery capacity is 60kWh and the maximum charging voltage is 700V. The curves showing the changes in charging current and SoC over time can be found in [reference needed]. Figure 9 Therefore, the ideal shortest charging time T can be accurately calculated.charge = 2.8 minutes + 2.9 minutes + 3 minutes + 3.1 minutes + 3.5 minutes + 4.5 minutes = 19.8 minutes.

[0115] Furthermore, server 3000 can adjust the target battery temperature and minimum charging time based on the distance the vehicle 100 travels to the charging station and / or the battery power consumed due to the battery heating to the target battery temperature. For example, if it is determined that the current temperature of battery 100 cannot meet the maximum charging current achievable by the current SoC as shown in the charging MAP, server 3000 will adjust the charging time T based on the predicted arrival time. jouney The heating performance of the vehicle's thermal management system is used to determine the temperature that the battery 100 can adjust to before the vehicle arrives at the charging station 2000, and the SoC after adjusting to that temperature to compensate for the predicted shortest charging time.

[0116] For example, the charging MAP of the charging protocol jointly supported by vehicle 1000 and charging pile 400 located at charging station 2000 is shown in Table 1. Server 3000 queries the location, availability, and supported charging protocol information of charging station 2000, as well as the energy consumption big data information of the vehicle model, based on the vehicle location and battery information received from vehicle 1000. Therefore, server 3000 can determine that the current temperature of battery 100 of vehicle 100 is 20 degrees Celsius, the current SoC of battery 100 is 30%, and the maximum charging current of the charging protocol jointly supported by battery 100 and charging pile 400 at 30% SoC is 400A (column 5 of "Temperature 13"). The ideal charging temperature corresponding to this maximum charging current is 50 degrees Celsius. Calculations show that the predicted arrival time of vehicle 1000 to charging station 2000 is 15 minutes, and the battery 100 can rise from 20 degrees Celsius to 45 degrees Celsius during the 15-minute journey. Based on big data analysis of similar vehicle models, it is known that heating battery 100 from 20 degrees Celsius to 45 degrees Celsius using a battery heating device is expected to consume 8% of the System Total Energy (SoC). Driving vehicle 1000 for 15 minutes with the current battery charge is expected to consume 2% of the SoC. Therefore, vehicle driving and battery heating together consume approximately 10% of the SoC. In some embodiments, when the distance between vehicle 1000 and the charging station is less than a preset threshold, since the energy consumed by vehicle driving is generally much less than the energy generated by rapid heating, the energy consumed by heating battery 100 (SoC) can be compensated. When the distance between vehicle 1000 and the charging station is greater than the preset threshold, compensation can be made only for the energy consumed by vehicle 1000 while driving to the charging station, or both the energy consumed by heating and the energy consumed by the arriving battery can be compensated simultaneously, thus achieving higher accuracy in predicting remaining battery charge. In this example, the energy consumed by heating and the energy consumed by the arriving battery are used together to compensate for the current battery charge, thereby obtaining the target battery charge. The target battery charge = current battery charge - energy consumed by heating - energy consumed by the arriving battery = 30% - 8% - 2% = 20%. According to Table 1, the ideal charging temperature for a target battery charge of 20% is 50 degrees Celsius. Therefore, the target charging temperature can be compensated to 50 degrees Celsius. However, in this example, due to the limitation of the vehicle's battery heating capacity, the temperature of battery 100 cannot be heated to 50 degrees Celsius during driving. Therefore, the target charging temperature is still set at 45 degrees Celsius.

[0117] Server 3000 compensates for the target temperature based on the battery capacity of battery 100 of vehicle 1000 and SoC, that is, it compensates the temperature of the maximum charging current corresponding to 30% SoC to the temperature of the maximum charging current corresponding to 20% SoC, and takes the minimum value between the compensated temperature and 45 degrees Celsius. Referring to row "Temperature 12" in Table 1, calculate the charging time t1 for battery 100 from 20% SoC to 30% SoC at a charging current of 330 amps, the charging time t2 for 320 amps to 40% SoC, the charging time t3 for 310 amps to 50% SoC, the charging time t4 for 300 amps to 60% SoC, the charging time t5 for 290 amps to 70% SoC, and the charging time t6 for 260 amps to 80% SoC. The compensated predicted shortest charging time T is then calculated. charge-fix = t1 + t2 + t3 + t4 + t5 + t6. The predicted arrival time T after compensation. jouney And the predicted shortest charging time T charge The summation yields the predicted total charging time, T. total =T charge-fix+ T jouney Therefore, a more accurate shortest charging time can be obtained. Server 1000 will calculate the predicted total charging time T for multiple charging stations. total Send this information to vehicle 1000 so users can schedule a charging station for faster charging. See appendix. Figure 15 In some embodiments, vehicle 1000 receives information on five charging stations from server 1000 and displays two of these stations with a predicted charging time of less than 60 minutes on the vehicle's infotainment system screen for the user to choose from. When the user clicks on charging station A, vehicle 1000 sends the identifier of the selected charging station A to server 3000. Server 3000 uses the charging parameters of charging station A as the charging equipment information for the corresponding charging equipment (charging pile).

[0118] In some embodiments, the server 3000 calculates the estimated shortest charging time based on the matching between the maximum charging voltage of the vehicle 100's battery 100 under the current SoC and the maximum charging voltage supported by the charging pile. Further details are omitted here.

[0119] Step 105: Reserve a charging station according to the selected charging thermal management strategy.

[0120] The user selects the desired charging station 2000 and charging pile 400 through the vehicle's infotainment system (vehicle 1000) and sends the identifier (ID) of the charging pile 400 to the server 3000. The server 3000 then reserves the charging pile 400 for the vehicle 1000 based on the identifier of the charging pile 400 and the vehicle's identifier. Specifically, the server 3000 sends the vehicle 1000's identifier, estimated arrival time, supported charging protocols, and estimated minimum charging time to the charging pile 400, which then reserves the usage time for the vehicle 1000 based on this information. For example, refer to... Figure 15 The current time is 8:10 PM. The predicted arrival time for vehicle 1000 is 15 minutes, the predicted minimum charging time is 20 minutes, and the preset redundancy time is 30 minutes. Therefore, charging station 400 reserves the reserved usage time from 8:10 PM to 9:15 PM. Server 3000 further sends a thermal management strategy to vehicle 1000 to adjust the temperature of battery 100 to near the ideal charging temperature (e.g., 45 degrees Celsius) while vehicle 1000 is traveling to charging station 400. This ideal charging temperature corresponds to at least one of the maximum charging current, maximum charging voltage, or maximum charging power jointly supported by battery 100 and charging station 400.

[0121] Step 106: Perform thermal management on the vehicle's battery according to the preset charging scheme and the vehicle's actual location.

[0122] In response to the user-selected charging station 2000, the vehicle 1000 uses a thermal management system to implement the aforementioned thermal management strategy of the charging pile 400 of the corresponding charging station 2000 on the battery 100, so that the temperature of the battery 100 reaches or is close to the ideal charging temperature before the vehicle 1000 arrives at the charging station 2000.

[0123] The hardware structure of the thermal management system of Vehicle 1000 can be found in [reference needed]. Figure 10The battery 100 consists of multiple battery packs. The battery management system (BMS), drive module, high-voltage relay, heater, cooler, and temperature sensor group together constitute the thermal management system of the battery 100. The heater, made of positive temperature coefficient heating resistors or silicone heating films, is used to heat the battery packs. The cooler, connected to the vehicle 1000's air conditioning system, is used to reduce the temperature of the battery packs. The BMS periodically monitors the temperature of the cells within the battery packs using temperature sensors and manages the temperature of the battery 100 using the heater and cooler, thereby ensuring that the temperature of the battery 100 remains within a set temperature range during vehicle 1000 operation. The vehicle control unit (VCU) and the in-vehicle infotainment system (also known as the vehicle infotainment system) connect to the server 3000 via the cellular communication module built into the T-box (TelematicBOX), sending information about the vehicle 1000 and the battery 100 to the server 3000 and receiving instructions from the server 3000, thereby commanding the BMS to perform thermal management of the battery 100. Optionally, in addition to the temperature of the battery cells in battery 100, the thermal management strategy can also include the degree of temperature balance among the individual battery cells. Furthermore, implementing thermal management strategies to change the battery pack temperature includes activating the heater, increasing or decreasing the operating power of the cooler, reducing the motor's operating efficiency, and changing one or more of the kinetic energy recovery modes. For example, reducing the motor's operating efficiency while the vehicle 1000 is in motion by changing the motor's operating logic can raise the battery temperature more quickly than heating the battery when the vehicle is stationary, thus allowing the battery to reach the temperature required for high-speed charging. Another example is that when the current temperature is lower than the target temperature, the kinetic energy recovery mode level of the vehicle 1000 can be increased, converting the kinetic energy recovered during deceleration or braking into heat energy in the battery, thereby raising the battery temperature.

[0124] In some embodiments, the thermal management strategy includes a target battery temperature. In yet other embodiments, the thermal management strategy also includes a correlation between the battery temperature and at least one of the following: the actual distance of the vehicle 1000 from the charging station 2000, the arrival distance of the vehicle 1000, or the arrival time. For example, in the arrival time T... jouneyIf the current battery temperature is 30 degrees Celsius and the target battery temperature is 50 degrees Celsius, the thermal management strategy could be that for every minute the vehicle 1000 travels, the thermal management system raises the temperature of battery 100 by 1 degree Celsius until the temperature of battery 100 reaches 50 degrees Celsius. The arrival time can be the scheduled time from the reserved charging station 400, or the predicted time for vehicle 1000 to move to charging station 400. For example, if the current location of vehicle 1000 is 20 kilometers away from charging station 2000, vehicle 1000 checks its distance to charging station 2000 every 30 seconds within a certain period. When the distance between vehicle 1000 and charging station 2000 is 15 to 25 kilometers, battery 100 is heated to 35 degrees Celsius; when the distance is 10 to 15 kilometers, battery 100 is heated to 40 degrees Celsius; and when the distance is greater than 25 kilometers, heating of the battery is stopped. This improves the flexibility of heating and avoids unnecessary power consumption.

[0125] Step 107: Charge the vehicle's battery according to the charging preheating plan and battery information.

[0126] After vehicle 1000 enters charging station 2000, vehicle 1000 connects to charging pile 400 via charging cable. After charging pile 400 authenticates vehicle 1000, it charges vehicle 1000 according to the received commonly supported charging protocol (refer to Table 1 and...). Figure 8 According to a thermal management strategy, vehicle 1000 continues to adjust the temperature of battery 100 during the charging phase, ensuring that battery 100 can be charged with a high charging power at all states of charge. In some embodiments, the commonly supported charging protocol is sent by server 3000 to vehicle 1000 and charging station 400 during steps 103 to 105. In other embodiments, the commonly supported charging protocol can be obtained through handshake protocol messages sent when vehicle 1000 and charging station 400 are connected via charging cable. This ensures that vehicle 1000 maintains a high charging power during charging, thereby shortening charging time.

[0127] Based on the above embodiments of this disclosure, the battery can be preheated according to the matching between the battery and the charging equipment, thereby effectively reducing the charging time of the vehicle.

[0128] Some embodiments of this disclosure also provide a method for thermal management of vehicle charging.

[0129] Figure 10 This is a schematic diagram illustrating a mobile terminal remotely reserving a charging station according to some embodiments of this disclosure. (Refer to...) Figure 10The vehicle 1000 establishes a wireless communication link with the server 3000 via cellular networks or other communication methods. The server 3000 establishes a communication link with the charging station 2000 via wireless or wired communication. The server 3000 can directly connect to the charging station 2000 without going through other servers, or it can indirectly obtain the status information of the charging station 2000 through one or more other servers (e.g., servers set up by power companies to aggregate status information from multiple charging stations); this is not limited here. Furthermore, the user establishes a wireless communication link with the vehicle 1000 via a mobile terminal 5000 such as a smartphone. The wireless communication link between the mobile terminal 5000 and the vehicle 1000 can utilize wide-area communication technologies such as 4G / 5G cellular networks, and near-field communication technologies such as WiFi and Bluetooth. Additionally, the mobile terminal 5000 can also establish a wireless communication link with the server 3000 to obtain information about the charging station 2000 and reserve charging piles 400. Therefore, even when the user is outside the vehicle 1000, they can still trigger the method disclosed herein using the mobile terminal 5000. This method can be... Figure 10 The vehicle 1000, mobile terminal 5000, or server 3000 may each execute all the steps individually, or execute a portion of the steps individually. The following explanation will use mobile terminal 5000 as an example.

[0130] Figure 11 An interaction diagram illustrating the battery charging control method provided in this embodiment. (Refer to...) Figure 11 This embodiment includes the following steps:

[0131] S201 queries the user's charging query request.

[0132] Users trigger charging query requests through the human-computer interaction interface of the 5000 mobile device (see attached). Figure 14-16 ).

[0133] S202 obtains vehicle location and battery information.

[0134] Mobile device 5000 queries vehicle 1000 for vehicle location and battery information. Battery information 1000 includes vehicle 1000's geographic coordinates, ambient temperature, battery 100's state of charge (SOH), battery model, battery temperature, and supported charging protocols. Battery 100's battery temperature can be the highest or average temperature of the battery cells, or it can be viewed by the user through the vehicle's infotainment system.

[0135] When the mobile device 5000 communicates with the vehicle 1000 via near-field communication technologies such as WiFi and Bluetooth, it can query the vehicle 1000's geographical location without querying the vehicle 1000 itself, and use the mobile device 5000's own address location information as the vehicle 1000's location.

[0136] Step S203: Based on the vehicle location and battery information, query information on nearby charging stations.

[0137] The mobile terminal 5000 sends the current vehicle location and battery information to the server 3000 via a wireless link, and queries the charging station information near the current location of the vehicle 1000. This step is basically the same as step S102 in the previous embodiment, and will not be described again here.

[0138] Step S204: Obtain the location of the charging station, its availability for reservation, and the supported charging parameters.

[0139] Server 3000 queries multiple charging stations, including charging station 2000, for their locations, availability, and supported charging parameters. This step is essentially the same as step S103 in the previous embodiment and will not be described again here.

[0140] Step S205: Send the filtered charging management plan.

[0141] Server 3000 filters charging stations according to preset criteria and sends the corresponding charging thermal management schemes for the filtered charging stations to mobile terminal 5000. This step is basically the same as step S104 in the previous embodiment, and will not be described again here.

[0142] Step S206: Reserve a charging station according to the selected charging management plan.

[0143] The mobile terminal 5000 receives a charging management scheme selection command from the user and reserves a charging station 2000 according to the selected charging management scheme. This step is basically the same as step S105 in the previous embodiment, and will not be described again here.

[0144] Step S207: Send an instruction to execute the selected charging thermal management scheme.

[0145] The mobile terminal 5000 sends instructions to the vehicle 1000 to execute the selected charging thermal management scheme.

[0146] Step S208: Implement a thermal management scheme for the vehicle's battery based on the charging preheating scheme and the vehicle's real-time location.

[0147] The vehicle 1000 implements a thermal management scheme for the battery 100 based on the charging preheating scheme and the real-time location of the vehicle 1000. This step is basically the same as step S106 in the previous embodiment, and will not be described again here.

[0148] Step S209: Charge the vehicle's battery according to the charging preheating plan and vehicle information.

[0149] When vehicle 1000 arrives at charging station 2000 and connects to charging pile 400, the battery management system (BMS) of vehicle 1000 charges the vehicle's battery according to the charging preheating plan and vehicle information. This step is basically the same as step S107 in the previous embodiment, and will not be described again here.

[0150] Therefore, even when the user is not inside the vehicle 1000, it is still possible to remotely control the vehicle 1000 to preheat the battery.

[0151] Some embodiments of this disclosure also provide a vehicle charging thermal management method applicable to situations where the vehicle is located near a charging device.

[0152] This embodiment can be executed in Figure 12 On the system shown. For example, refer to... Figure 12 Vehicle 4000 is using charging station 400 for charging. Vehicle 1000 is queuing at charging station 2000, waiting for an available charging station. At this time, vehicle 1000 can establish a communication link with charging station 2000 through near-field communication methods such as Bluetooth and RFID, reserve an upcoming available charging station (such as charging station 400), and perform thermal management on battery 100 in advance during the waiting period, thereby reducing the total charging time.

[0153] Reference Figure 13 This embodiment includes the following steps:

[0154] Step 301: Broadcast the availability of the charging station and its charging parameters.

[0155] The charging station 2000 periodically transmits Bluetooth beacon frames within the station. These frames include the reservation status and charging information of one or more charging stations within the station. The reservation status includes the predicted idle time and queue waiting time for each charging station. Charging parameters include the maximum charging voltage and / or maximum charging current supported by each charging station.

[0156] Optionally, the charging station 2000 may also send information such as the usage status of one or more charging piles and the supported charging protocols to the server 3000, so that the vehicle 1000 can obtain the above information by querying the server 3000.

[0157] Step 302: Based on the charging station's reservation status, charging parameters, and battery information, display the available thermal management strategies.

[0158] Vehicle 1000 receives information from one or more charging piles from charging station 2000, and matches the battery information with the charging parameter information of each charging pile to obtain matched charging parameters. The battery information includes the battery capacity, remaining charge, charging current, and charging voltage of battery 100. For example, the matched charging parameters could be the maximum charging voltage jointly supported by the charging pile and battery 100. Based on the matched charging parameters, the battery capacity of battery 100, the remaining charge of battery 100, and the queuing time of each charging pile, vehicle 1000 calculates the target temperature and predicted charging time for battery 100 for each charging pile, and displays this information to the user via the vehicle's infotainment system display screen, indicating the one or more charging piles and their corresponding predicted charging times.

[0159] Step 303: Reserve a charging station according to the selected charging thermal management strategy.

[0160] Step 304: Perform thermal management on the vehicle's battery according to the selected charging thermal management strategy.

[0161] Step 305: Perform thermal management on the vehicle's battery according to the charging preheating plan and vehicle information.

[0162] Based on the charging station 400 selected by the user from one or more of the aforementioned charging stations, the vehicle 1000 reserves a charging station 400 and executes the corresponding thermal management strategy for the battery 100. This thermal management strategy includes adjusting the operating parameters of the heater and cooling pipes to raise or lower the battery 100 to a target temperature. Further details are omitted here.

[0163] Since vehicle 1000 is currently parked inside charging station 2000, the location information of vehicle 1000 and charging station 2000 is not transmitted in this embodiment.

[0164] Some embodiments of this disclosure also provide a vehicle charging control method, which can be applied to vehicle infotainment systems (in-vehicle multimedia entertainment terminals), in-vehicle dashboards, smartphones, computers, and other electronic devices. The method of this embodiment is described below using an in-vehicle infotainment system as an example. Vehicles can refer to... Figure 5 .

[0165] Reference Figure 19 The method includes the following steps:

[0166] Step S401: Display the first interface and detect the first operation, which is used to trigger a query for the charging device.

[0167] Reference Figure 14The vehicle 1000 displays a first interface U810 for receiving user operation commands on the vehicle's infotainment system screen. This first interface can be a voice assistant page, a navigation system page, or any other page capable of receiving voice or touch operation commands (e.g., refer to...). Figure 18 (The main desktop interface of the vehicle's infotainment system). In this embodiment, the vehicle system receives the user's voice command "I want to charge" through the first interface U810 and displays the second interface U820 on the screen.

[0168] Step S402: In response to the received first operation, a second interface is displayed, the second interface including the charging device identifier and charging time of one or more first charging devices.

[0169] Reference Figure 15 In response to the first operation received from the user, vehicle 1000 displays a second interface U820 on the display screen. The second interface may completely replace the first interface, be displayed in a different display area, cover a portion of the first interface, or serve as a graphic element of the first interface; this is not limited here. The second interface U820 includes a charging device identifier for one or more first charging devices and a predicted charging time corresponding to each first charging device. The first charging device can be a charging station or a charging pile. The charging device identifier is used to distinguish different charging devices and can be obtained from a server or the charging device itself.

[0170] For example, vehicle 1000 queries charging stations or charging piles within a certain distance of its location using a geographic information system (GIS) based on its geographical coordinates (or a combination of geographical coordinates and the current SoC). These charging stations or charging piles are designated as first charging devices and displayed on the second interface U802 in order of charging time. Vehicle 1000 also obtains its power battery's SoC, battery charging parameter information, and the charging parameters of the first charging devices to calculate the predicted charging time for one or more of the first charging devices. In some embodiments, the battery charging parameter information includes the correspondence between the battery's SoC, battery temperature, and battery charging current; the charging device charging parameter information includes the charging current corresponding to the first charging device. In other embodiments, the battery charging parameter information includes the correspondence between the battery's SoC, battery temperature, and battery charging voltage; the charging device charging parameter information includes the charging voltage corresponding to the first charging device. The charging time can be calculated based on the matching of the battery charging parameter information and the charging device charging parameter information (e.g., the maximum charging current jointly supported by the battery and the first charging device) and the battery SoC.

[0171] In some embodiments, the charging time can be a predicted minimum charging time or a predicted total charging time. The predicted minimum charging time is calculated based on the matching of the maximum charging current or maximum charging voltage supported by the battery 100 of the vehicle 100 under the current SoC and the charging pile. The predicted total charging time includes the minimum charging time and the predicted arrival time. The predicted arrival time is the time required for the vehicle 1000 to travel to the first charging device, calculated based on the location of the vehicle 1000 and the location of each first charging device. For the specific calculation method of the charging time, please refer to step S104 of the embodiments of this disclosure, which will not be repeated here.

[0172] Optionally, the second interface may also include charging parameter information, location information, and estimated arrival time of the first charging device, thereby helping the user to comprehensively select the charging device to reserve. For example, the charging parameter information includes at least one of the charging rate supported by the charging pile, the maximum charging current, and the maximum charging voltage.

[0173] Reference Figure 17 In some embodiments, the method further includes step S400, obtaining a preset charging capacity set by the user. For example, the vehicle displays an interactive interface U805 on a screen, where the user inputs a preset charging capacity used to predict charging time. The preset charging capacity is 80% of the System-on-Chips (SoC). The vehicle 1000 calculates the shortest charging time for the battery 100 at the charging station based on the difference between the current battery capacity of the battery 100 and the preset charging capacity, the battery capacity of the battery 100, and the maximum charging current supported by the battery 100 and the charging station under the current SoC, and displays this calculation on a second interface. The preset charging capacity can be set by the user according to their own driving habits (e.g., 100% or 80%). Since the charging speed of the vehicle's battery drops rapidly in the last 20% of charging, resulting in a longer charging time, allowing the user to set the preset charging capacity can help the user better predict the actual charging time.

[0174] Step S403: Detect a second operation, whereby the second operation is selected to choose a second charging device from one or more of the first charging devices. While the second interface is displayed, the vehicle 1000 detects a second operation from the user targeting the second interface. The second operation can be tapping an option for the first charging device on the second interface with a finger, or a voice command. The charging device identifier of the first charging device displayed on the second interface can be used to prompt the user to trigger the second operation. Additionally, receiving a user's voice command while both the first and second interfaces are displayed simultaneously is considered receiving an operation targeting the second interface. For example, the vehicle 1000 detects a user's voice command for "Charging Station A (Charging Device Identifier)," designates "Charging Station A" as the second charging device, and displays the third interface U830 on the vehicle's infotainment system screen.

[0175] Step S404: In response to the second operation, a third interface is displayed, the third interface including the charging time of the second charging device.

[0176] Reference Figure 16 The third interface U803 is used to prompt the user with the real-time predicted charging time for the corresponding "charging station A". In this embodiment, the third interface is the interface of the navigation application. In some embodiments, the third interface simultaneously displays the predicted shortest charging time and the arrival time of the vehicle at "charging station A" (the second charging device).

[0177] Step S405: In response to a change in at least one of the vehicle's location, battery charge, and the usage status of the second charging device, update the charging time on the third interface.

[0178] Because the predicted charging time is affected by factors such as the vehicle's location, battery level (SoC), and the availability of the second charging device, the predicted charging time needs to be recalculated and updated on the third interface when the vehicle 1000's location, distance to the charging device, time to reach the charging device, battery level, or availability of the second charging device changes. This allows the user to see the real-time predicted charging time. The availability of the second charging device can include whether it is currently in use or has been reserved. In some embodiments, if another vehicle using "Charging Station A" finishes charging early, the predicted charging time for vehicle 1000 may be shortened, thus the charging time on the third interface can also be updated.

[0179] Step S406: In response to the received second operation, perform a thermal management strategy for the vehicle according to the second charging device.

[0180] The thermal management strategy involves adjusting the battery temperature to a charging temperature corresponding to "Charging Station A" that provides the maximum charging rate for the current battery charge by controlling at least one of the heater, cooler, motor operating mode, or kinetic energy recovery mode. For example, the current battery charge (SoC) of vehicle 1000 is 30%, and the current battery temperature is 35 degrees Celsius. At this time, by referring to Table 1, it can be found that the maximum charging current jointly supported by battery 100 and the charging equipment of charging station A is 400 amps, and the target battery temperature matching the charging parameters of 400 amps is 50 degrees Celsius (see row "Temperature 13"). Therefore, vehicle 1000 executes the thermal management strategy, which heats battery 100 from 35 degrees Celsius to 50 degrees Celsius via an electric heating network.

[0181] The method described in this embodiment can help users understand the actual charging time of each charging device, thus saving charging time.

[0182] Some embodiments of this disclosure also provide a computer device, which may be a terminal, and its internal structure diagram may be as follows: Figure 20 As shown, the computer device includes a processor, memory, communication interface, display screen, and input device connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for wired or wireless communication with external terminals. Wireless communication can be achieved through Wi-Fi, carrier networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a data acquisition method as described in the above embodiments. The display screen of the computer device can be a liquid crystal display (LCD) or an e-ink display. The input device of the computer device can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the computer device casing, or an external keyboard, touchpad, or mouse, etc.

[0183] Some embodiments of this disclosure also provide a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method of any of the above embodiments.

[0184] Some embodiments of this disclosure also provide a vehicle that includes the computer equipment and battery described in the above embodiments, wherein the computer is electrically connected to the battery and is used to perform the steps of the method of any of the above embodiments.

[0185] Some embodiments of this disclosure also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method of any of the above embodiments.

[0186] Some embodiments of this disclosure also provide a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the steps of the method of any of the above embodiments.

[0187] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and they should all be covered within the scope of the claims and specification of this disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for managing the charging thermal of a vehicle, characterized in that, Includes the following steps: Obtain current vehicle location, current battery level, current battery temperature, and battery charging parameters; Based on the current vehicle location, obtain the charging parameters of the corresponding charging equipment; A thermal management strategy for the battery is determined based on the current battery charge, the current battery temperature, the battery charging parameters, and the charging device charging parameters. The step of determining the thermal management strategy for the battery based on the current battery charge, the current battery temperature, the battery charging parameters, and the charging device charging parameters includes: Based on the battery charging parameter information and the charging device charging parameter information, determine the matching charging parameters; Confirm the target battery temperature based on the matching charging parameters; Based on the current battery temperature and the target battery temperature, the thermal management strategy for the battery is determined; The step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: Confirm the first remaining battery charge after the current battery temperature is adjusted to the target battery temperature; Based on the current vehicle location and the location of the charging device, determine the second remaining battery power of the vehicle from the current vehicle location to the location of the charging device; Based on the first remaining battery capacity and the second remaining battery capacity, the target battery temperature after compensation is determined; The thermal management strategy for the battery is determined based on the current battery temperature and the compensated target battery temperature.

2. The method according to claim 1, wherein, The step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: Based on the current vehicle location and the location of the charging device, determine the distance the vehicle needs to reach the charging device; Based on the temperature difference between the current battery temperature and the target battery temperature, and the arrival distance, a thermal management strategy for the battery is determined, wherein the thermal management strategy includes the correspondence between the arrival distance of the vehicle and the battery temperature.

3. The method according to claim 1, wherein, The step of determining the thermal management strategy of the battery based on the current battery temperature and the target battery temperature further includes: Based on the current vehicle location and the location of the charging device, determine the arrival time of the vehicle to the charging device; A thermal management strategy for the battery is determined based on the temperature difference between the current battery temperature and the target battery temperature, and the arrival time. The thermal management strategy includes the correspondence between the arrival time of the vehicle and the battery temperature.

4. The method according to claim 1, wherein, The steps for determining the thermal management strategy of the battery based on the current battery charge, the current battery temperature, the battery charging parameters, and the charging device charging parameters include: The charging wait time is obtained from the charging device. The thermal management strategy for the battery is determined based on the charging waiting time, the current battery level, the current battery temperature, the battery charging parameter information, and the charging device charging parameter information. The charging waiting time is determined based on the usage status and reservation status of the charging device.

5. The method according to any one of claims 1 to 4, wherein, The step of obtaining the charging parameter information of the corresponding charging device based on the current vehicle location further includes: Based on the current vehicle location, query the charging parameter information of one or more charging devices within a preset range; Based on the charging parameter information of the charging device and the battery charging parameters of the one or more charging devices, the predicted charging time for the one or more charging devices is determined. Based on the predicted charging time, the user is provided with options for selecting a charging device; In response to the option selected by the user, the charging parameter information of the corresponding charging device is determined.

6. The method according to any one of claims 2 to 4, wherein, The method further includes the following steps: According to the thermal management strategy, the battery temperature is adjusted to the target battery temperature; In response to a charging command, the charging current for charging the battery is adjusted according to the battery temperature and battery charge level.

7. The method according to any one of claims 1 to 4, wherein, The battery charging parameter information includes at least one of the charging current or charging voltage supported by the battery, and the correspondence between the battery capacity and battery temperature.

8. The method according to any one of claims 1 to 4, wherein, The charging parameter information of the charging device includes the charging current or charging voltage supported by the charging device.

9. The method according to any one of claims 2 to 4, wherein the matching charging parameters include a charging current or charging voltage supported by both the battery charging parameter information and the charging device charging parameter information.

10. The method according to any one of claims 2 to 4, wherein, The matching charging parameters include the maximum charging current supported by both the battery charging parameter information and the charging device charging parameter information.

11. The method according to any one of claims 1 to 4, wherein, The thermal management strategy includes adjusting the battery temperature to the target battery temperature by controlling at least one of the following: the operating mode of the heater, the cooler, the motor, or the kinetic energy recovery mode.

12. A computer device comprising a processor and a memory, the memory storing a computer program, characterized in that, When executed by the processor, the computer program causes the processor to perform the steps of the method according to any one of claims 1 to 4.

13. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 1 to 4.

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