Temperature remote preprocessing control device and method based on CCS charging system

Abstract

The invention provides a temperature remote preprocessing control device and method based on a CCS charging system, and relates to the technical field of new energy automobiles, the device comprises a client, a battery management system, a vehicle temperature adjusting system and a battery system; the client is in communication connection with the battery management system through the CCS charging system, and the battery management system is used for obtaining vehicle temperature information and sending the vehicle temperature information to the client; the client is used for sending a preprocessing control instruction to the battery management system according to the vehicle temperature information; the battery management system is used for controlling the vehicle temperature adjusting system to adjust the vehicle temperature to be within the vehicle preset temperature range in response to the preprocessing control instruction. Various temperature information of the vehicle can be comprehensively obtained, a user can comprehensively analyze and judge the temperature of the vehicle in an all-around mode, the vehicle can be adjusted to the optimal state through the battery management system before the vehicle runs, and it is ensured that the user has comfortable driving experience on the premise that the cruising ability of the vehicle is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a temperature remote preprocessing control device and method based on a CCS charging system. Background Art

[0002] As the main source of on-board energy in new energy vehicles, power batteries are used to provide power energy to the vehicles. Therefore, it is very important to ensure the safe and stable operation of power batteries.

[0003] At present, new energy vehicles have been widely used, and in different application scenarios, the ambient temperature has a huge impact on the use of power batteries. For example, in high-altitude and cold areas, the performance of power batteries becomes weaker at low temperatures, and the power and available capacity will be affected to varying degrees, further affecting the vehicle's cruising range, and rapidly raising the temperature in the passenger area will consume a lot of electricity; in high-temperature areas, the rapid rise in the temperature of the rechargeable battery will affect the safety of the power battery, and rapid cooling in the passenger area will also consume a lot of battery power, further affecting the cruising range.

[0004] Therefore, how to protect the power battery from the influence of temperature to the greatest extent so that the vehicle can reach the optimal state before operation and improve the driving comfort of the vehicle while ensuring the vehicle's endurance is an urgent problem to be solved. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned prior art, the present invention provides a temperature remote preprocessing control device and method based on the CCS charging system, which solves the technical problem in the prior art that the power battery of new energy vehicles is greatly affected by temperature and cannot simultaneously ensure the vehicle's endurance and driving comfort.

[0006] On one hand, the present invention provides a temperature remote pre-processing control device based on a CCS charging system, which is applied to a vehicle connected to the CCS charging system. The device includes a client, a battery management system, a vehicle temperature adjustment system and a battery system;

[0007] The client is connected to the battery management system through the CCS charging system, and the battery management system is connected to the vehicle temperature control system and the battery system respectively;

[0008] The battery management system is used to obtain vehicle temperature information and send the vehicle temperature information to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area and the vehicle external environment temperature;

[0009] The client is used to send a pre-processing control instruction to the battery management system according to the vehicle temperature information, wherein the pre-processing control instruction carries a preset temperature range of the vehicle;

[0010] The battery management system is used for controlling the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the preset vehicle temperature range.

[0011] Optionally, the vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range;

[0012] The vehicle temperature regulation system includes a battery thermal management system and a passenger area air conditioning system, wherein the battery thermal management system and the passenger area air conditioning system are respectively connected to the battery management system, and the battery thermal management system is connected to the battery system;

[0013] The battery thermal management system is used to adjust the temperature of the battery system to within a preset temperature range of the battery system based on the control of the battery management system;

[0014] The passenger area air conditioning system is used to adjust the temperature of the vehicle passenger area to a preset temperature range of the passenger area based on the control of the battery management system.

[0015] Optionally, the device further includes a vehicle controller;

[0016] The vehicle controller is respectively connected to the battery management system, the battery thermal management system and the passenger area air conditioning system;

[0017] The battery management system is used to send an activation instruction to the vehicle controller in response to the pre-processing control instruction;

[0018] The vehicle controller is used to control the battery thermal management system and the passenger area air conditioning system to be in a standby state in response to the activation instruction.

[0019] Optionally, a temperature sensor is provided in the passenger area air conditioning system, and the temperature sensor is used to collect the external ambient temperature of the vehicle and / or the temperature of the passenger area of ​​the vehicle.

[0020] Optionally, the battery management system is further used to obtain the temperature and state of charge of the battery system;

[0021] When the temperature of the battery system is within a preset charging temperature range and the state of charge of the battery system does not exceed a preset state of charge threshold, the CCS charging system charges the battery system;

[0022] When the temperature of the battery system is outside a preset charging temperature range, and / or the state of charge of the battery system exceeds a preset state of charge threshold, the CCS charging system stops charging the battery system.

[0023] Another aspect of the present invention provides a temperature remote preprocessing control method based on a CCS charging system, which is applied to any of the above-mentioned temperature remote preprocessing control devices based on a CCS charging system, and the method comprises:

[0024] The client generates a vehicle temperature information acquisition instruction, and sends the vehicle temperature information acquisition instruction to the battery management system through the CCS charging system;

[0025] The battery management system obtains vehicle temperature information in response to the vehicle temperature information acquisition instruction and sends the vehicle temperature information to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area, and the temperature of the vehicle's external environment;

[0026] The client generates a preprocessing control instruction according to the vehicle temperature information and sends it to the battery management system, wherein the preprocessing control instruction carries a preset temperature range of the vehicle;

[0027] The battery management system controls the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the vehicle preset temperature range.

[0028] Optionally, the vehicle temperature adjustment system includes a battery thermal management system and a passenger area air conditioning system, and the vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range; the battery management system controls the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the vehicle preset temperature range, including:

[0029] The battery management system collects the vehicle's external ambient temperature through the passenger area air conditioning system and obtains a normal temperature range of the vehicle's external environment;

[0030] The battery management system controls the battery thermal management system to adjust the temperature of the battery system to within a preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within a preset temperature range of the passenger area.

[0031] Optionally, the battery management system controls the battery thermal management system to adjust the temperature of the battery system to within a preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within a preset temperature range of the passenger area, including:

[0032] When the battery management system determines that the temperature of the battery system is within the preset temperature range of the battery system, the temperature of the vehicle's external environment is within the normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system controls the passenger area air conditioning system to cool or heat the vehicle so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area;

[0033] When the battery management system determines that the temperature of the battery system is outside the preset temperature range of the battery system, the temperature of the vehicle's external environment is outside the normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system first controls the battery thermal management system to adjust the temperature of the battery system to within the preset temperature range of the battery system, and then controls the passenger area air-conditioning system to cool or heat to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area.

[0034] Optionally, the pre-processing control instruction carries a preset temperature value for the passenger area; the battery management system controls the battery thermal management system to adjust the temperature of the battery system to within the preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within the preset temperature range of the passenger area, including:

[0035] When the battery management system determines that the temperature of the battery system is within a preset temperature range of the battery system, the battery management system controls the passenger area air conditioning system to cool or heat the vehicle passenger area to adjust the temperature of the passenger area to the preset temperature value of the passenger area.

[0036] Optionally, the preprocessing control instruction includes a charging control instruction; and the method further includes:

[0037] The battery management system obtains the temperature and state of charge of the battery system in response to the charging control instruction, and obtains a preset charging temperature range and a preset state of charge threshold of the battery system;

[0038] When the temperature of the battery system is within a preset charging temperature range and the state of charge of the battery system does not exceed a preset state of charge threshold, the CCS charging system charges the battery system, and the charging request power of the battery system is less than or equal to the sum of the vehicle temperature adjustment system, the allowable charging power of the battery system, and the output power of the CCS charging system;

[0039] When the temperature of the battery system is outside a preset charging temperature range, and / or the state of charge of the battery system exceeds a preset state of charge threshold, the CCS charging system stops charging the battery system, and the charging request power of the battery system is less than or equal to the sum of the output powers of the vehicle temperature control system and the CCS charging system.

[0040] The vehicle temperature remote preprocessing control device and method provided by the present invention, the battery management system can comprehensively obtain various temperature information of the vehicle, such as the temperature of the battery system, the temperature of the vehicle passenger area and the temperature of the vehicle's external environment, and feed back the temperature information to the client, so that the user can conduct a comprehensive analysis and judgment on the vehicle temperature, and then generate specific preprocessing control instructions to meet the user's driving needs; the battery management system can control the vehicle temperature adjustment system based on the preprocessing control instructions, and then adjust the vehicle temperature to within the preset temperature range of the vehicle, that is, the vehicle can be adjusted to the optimal state before the vehicle is operated, avoiding the vehicle from consuming a large amount of electricity during temperature adjustment during operation, affecting the vehicle's endurance, and ensuring that the user has a comfortable driving experience without waiting for the temperature adjustment process when getting on the vehicle; the above temperature control processes can all be remotely controlled by the user through the client, with strong flexibility and convenience.

[0041] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0042] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 A schematic diagram of the connection structure of a vehicle temperature remote pre-processing control device in an embodiment provided in the present application;

[0045] Figure 2 A schematic flow chart of a vehicle temperature remote pre-processing control method in an embodiment provided in the present application;

[0046] Figure 3 A diagram showing the relationship between the voltage and current of a battery system in a vehicle temperature remote pre-processing control method in an embodiment provided in the present application;

[0047] Figure 4 A relationship diagram between the maximum allowable temperature, average temperature and charging current of a battery system in a vehicle temperature remote pre-processing control method in another embodiment provided in the present application.

[0048] In the figure:

[0049] BAT_Voltage, the voltage of the battery system; BAT_Current, the current of the battery system; BAT_MaxTemp, the maximum allowable temperature of the battery system; BAT_AvgTemp, the average temperature of the battery system. DETAILED DESCRIPTION

[0050] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0051] At present, new energy vehicles have been widely used, and in different application scenarios, the ambient temperature has a huge impact on the use of power batteries. For example, in high-altitude and cold areas, the performance of power batteries becomes weaker at low temperatures, and the power and available capacity will be affected to varying degrees, further affecting the vehicle's cruising range, and rapidly raising the temperature in the passenger area will consume a lot of electricity; in high-temperature areas, the rapid rise in the temperature of the rechargeable battery will affect the safety of the power battery, and rapid cooling in the passenger area will also consume a lot of battery power, further affecting the cruising range.

[0052] In view of the above technical problems, the present invention provides a temperature remote pre-processing control device based on a CCS charging system, which is applied to a vehicle connected to a CCS charging system, such as Figure 1 As shown, the device includes a client, a battery management system, a vehicle temperature control system and a battery system; the client is connected to the battery management system through the CCS charging system, and the battery management system is connected to the vehicle temperature control system and the battery system respectively; the battery management system is used to obtain vehicle temperature information and send the vehicle temperature information to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area and the temperature of the vehicle's external environment; the client is used to send a pre-processing control instruction to the battery management system according to the vehicle temperature information, wherein the pre-processing control instruction carries a vehicle preset temperature range; the battery management system is used to control the vehicle temperature control system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the vehicle preset temperature range.

[0053] The temperature remote preprocessing control device based on the CCS charging system provided by the present invention, the battery management system can comprehensively obtain various temperature information of the vehicle, such as the temperature of the battery system, the temperature of the passenger area of ​​the vehicle and the temperature of the external environment of the vehicle, and feed back the temperature information to the client, so that the user can conduct a comprehensive analysis and judgment on the vehicle temperature, and then generate specific preprocessing control instructions to meet the user's driving needs; the battery management system can control the vehicle temperature adjustment system based on the preprocessing control instructions, and then adjust the vehicle temperature to within the preset temperature range of the vehicle, that is, the vehicle can be adjusted to the optimal state before the vehicle is operated, avoiding the vehicle from consuming a large amount of electricity during temperature adjustment during operation, affecting the vehicle's endurance, and ensuring that the user has a comfortable driving experience without waiting for the temperature adjustment process when getting on the vehicle; the above temperature control processes can all be remotely controlled by the user through the client, with strong flexibility and convenience.

[0054] Among them, the implementation of the technical solution of this application relies on the CCS charging system. CCS (Combined Charging System) is a DC fast charging standard for new energy vehicles, which aims to provide a global unified charging solution for plug-in hybrid vehicles and pure electric vehicles. The characteristic of the CCS charging interface is that two DC charging pins are added on the basis of the AC slow charging interface. They are located on both sides of the bottom of the charging port, so that the same charging port can support both AC slow charging and DC fast charging without the need for additional adapters or different charging ports; CCS has strong compatibility, scalability and safety, and is widely used in the European and American markets. Specifically, in this application, the CCS charging system includes a charging station and a charging gun that meet the CCS standard. The vehicle enters a dormant state by connecting to the charging station through the charging gun, and subsequently needs to rely on the client to trigger the command to wake up for preprocessing or charging operations.

[0055] Among them, the battery management system not only realizes the function of obtaining and feeding back the vehicle temperature information, but also realizes the comprehensive control of the battery system. It can also obtain the vehicle's voltage, current, temperature and other information, and can also realize communication and control functions. This application is specifically applied to its acquisition of temperature data in the vehicle and control of the vehicle temperature adjustment system, rather than limiting the functions it realizes.

[0056] Furthermore, the vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range; the vehicle temperature adjustment system includes a battery thermal management system and a passenger area air-conditioning system, the battery thermal management system and the passenger area air-conditioning system are respectively connected to the battery management system, and the battery thermal management system is connected to the battery system; the battery thermal management system is used to adjust the temperature of the battery system to within the battery system preset temperature range based on the control of the battery management system; the passenger area air-conditioning system is used to adjust the temperature of the vehicle passenger area to within the passenger area preset temperature range based on the control of the battery management system.

[0057] In this embodiment, the temperature adjustment of the vehicle specifically includes the temperature adjustment of the vehicle battery system and the temperature adjustment of the vehicle passenger area, so that both can be within the preset temperature range, wherein the battery thermal management system specifically regulates the temperature of the battery system, can more accurately maintain the battery system within the optimal operating temperature range, reduce the impact of extreme temperature on the performance of the vehicle battery, and maintain a stable temperature environment to help slow down the battery aging process and extend its service life; while the passenger area air conditioning system focuses on the temperature control of the interior space of the vehicle, and can set an ideal driving environment according to user preferences, and is not affected by the battery temperature adjustment. Specifically in this application, the temperature adjustment of the vehicle passenger area and the battery system are separate, and the temperature of the passenger area can be adjusted faster without affecting the battery performance. The temperature adjustment of the battery system is to ensure that the vehicle can maintain a good working state under different temperature conditions. The temperature of the battery system is adjusted in advance, so that the driver and passengers can avoid the waiting process, and can drive immediately under harsh external environments, and avoid adjusting the temperature of the passenger area during the driving process of the vehicle, resulting in power loss and affecting the vehicle's endurance; and the temperature adjustment of the passenger area in advance also reduces the waiting time of the driver and passengers, and they can enter a comfortable temperature environment when they get on the car, so that the driver and passengers can have a good driving experience.

[0058] Furthermore, the device also includes a vehicle controller; the vehicle controller is respectively connected to the battery management system, the battery thermal management system and the passenger area air conditioning system; the battery management system is used to respond to the pre-processing control instruction and send an activation instruction to the vehicle controller; the vehicle controller is used to respond to the activation instruction and control the battery thermal management system and the passenger area air conditioning system to be in standby state.

[0059] Among them, the vehicle control unit (VCU) is the core electronic control unit in new energy vehicles. It is responsible for coordinating and managing the operation of various subsystems in the vehicle and plays the role of the brain. It receives data from different sensors, user input and information from other control modules, makes decisions and sends instructions to the corresponding actuators to ensure the safe and efficient operation of the vehicle.

[0060] In this embodiment, the internal structure of the vehicle is specifically improved, and the device also includes a vehicle controller. The vehicle controller, as the core of the new energy vehicle control, is respectively connected to the battery management system, the battery thermal management system and the passenger area air-conditioning system. The vehicle controller receives the signal sent by the battery management system and coordinates the control system to perform temperature adjustment. When the battery management system first receives the pre-processing control instruction sent by the client, it means that the user has a use demand and needs to pre-adjust the temperature of the vehicle, so the vehicle needs to be activated. The vehicle controller receives the activation instruction sent by the battery management system and pre-controls the battery thermal management system and the passenger area air-conditioning system to be in standby state, so that it can cooperate with the battery management system to coordinate the battery thermal management system and the passenger area air-conditioning system to perform temperature adjustment operations according to the specific pre-processing content.

[0061] Furthermore, a temperature sensor is provided in the passenger area air conditioning system, and the temperature sensor is used to collect the temperature of the external environment of the vehicle and / or the temperature of the passenger area of ​​the vehicle.

[0062] In this embodiment, the vehicle temperature control system specifically includes a battery thermal management system and a passenger area air-conditioning system, so that the user can remotely control the temperature control process through the client according to his or her own driving needs. At the same time, the present application is equipped with a temperature sensor in the passenger area air-conditioning system, which can be used to collect the external temperature environment of the vehicle and synchronously feed back the external temperature environment of the vehicle to the client for user reference. The user can determine the specific adjustment target of the vehicle temperature according to the external temperature environment of the vehicle. It has strong flexibility and meets the personalized needs of users; and the temperature sensor can also be set in the passenger area to collect the temperature of the passenger area of ​​the vehicle, and can be fed back to the client through the battery management system before and after preprocessing, so that the user can promptly understand the specific temperature of the passenger area. It should be noted that in this application, the temperature sensor can be comprehensive and collect the external environment temperature and the passenger area temperature at the same time, or it can be independent of each other, and there is no specific limitation in this application.

[0063] Specifically, in the above embodiment, the battery management system is also used to obtain the temperature and state of charge of the battery system; when the temperature of the battery system is within a preset charging temperature range and the state of charge of the battery system does not exceed the threshold of the preset state of charge, the CCS charging system charges the battery system; when the temperature of the battery system is outside the preset charging temperature range, and / or the state of charge of the battery system exceeds the threshold of the preset state of charge, the CCS charging system stops charging the battery system.

[0064] In this embodiment, after the battery management system controls the vehicle temperature adjustment system to enter the temperature adjustment process, the battery management system needs to further determine whether the vehicle can be charged at this time. The specific judgment standard is to make a comprehensive judgment on the temperature and charge state of the battery system. When the temperature of the battery system is within the preset charging temperature range, it means that the temperature of the battery system is appropriate. Charging at this time will not cause the battery system to be overcooled or overheated, will not cause safety risks, and will not affect the normal use of the battery system. At the same time, it is determined whether the charge state of the battery system has exceeded the preset charge state threshold. If it does not exceed the threshold, it means that the battery system is out of power and needs to be charged. The CCS charging system can be charged under the control of the client; if the temperature of the battery system is outside the preset charging temperature range, or the charge state of the battery system exceeds the preset charge state threshold, at least one of the two situations occurs, then the CCS charging system is controlled to stop charging the battery system to avoid subsequent safety risks.

[0065] Another aspect of the present invention provides a temperature remote preprocessing control method based on a CCS charging system, which is applied to any of the above-mentioned temperature remote preprocessing control devices based on a CCS charging system, such as Figure 2 As shown, the method includes:

[0066] 101. The client generates a vehicle temperature information acquisition instruction, and sends the vehicle temperature information acquisition instruction to the battery management system through the CCS charging system.

[0067] In this embodiment, after the vehicle stops at the charging station of the CCS charging system and connects the charging gun, the vehicle enters the sleep mode. At this time, the user can generate a vehicle temperature information acquisition instruction on the remote client. The client can specifically be an APP on the user's mobile terminal. The vehicle temperature information acquisition instruction can be sent to the battery management system through the CCS charging system. The basic communication channel is specifically realized between the client and the CCS charging system through the OCCP protocol. Among them, OCCP (Open Charge Point Protocol) is an open standard communication protocol used for data exchange between the CCS charging system and the back-end system, supporting remote monitoring, configuration and management functions.

[0068] 102. The battery management system obtains the vehicle temperature information in response to the vehicle temperature information acquisition instruction and sends it to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area, and the temperature of the vehicle's external environment.

[0069] In this embodiment, the battery management system can obtain the vehicle temperature information after receiving the vehicle status information acquisition instruction. Specifically, it can comprehensively obtain the temperature of the battery system, the temperature of the vehicle passenger area and the temperature of the vehicle's external environment, and send all temperature information to the client so that the user can make a comprehensive judgment and analysis.

[0070] 103. The client generates a preprocessing control instruction according to the vehicle temperature information and sends it to the battery management system, wherein the preprocessing control instruction carries a preset temperature range of the vehicle.

[0071] In this embodiment, the user conducts a comprehensive analysis based on the received vehicle temperature information and ultimately determines the vehicle preset temperature range that meets his or her driving needs. Before the user needs to use the vehicle, the vehicle needs to be pre-processed so that the vehicle is already in the best operating state before entering the vehicle and the vehicle temperature is also the temperature he or she requires. Therefore, the user sends the vehicle preset temperature range in the form of a pre-processing control instruction to the battery management system to accurately adjust the vehicle temperature.

[0072] 104. The battery management system controls the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within a preset vehicle temperature range.

[0073] In this embodiment, the client initiates sending a pre-processing control instruction to the battery management system. At this time, the vehicle is already in the awake state, and the vehicle temperature control system is also in the standby state under the control of the vehicle controller. The battery management system can directly control the vehicle temperature control system to adjust the vehicle temperature in response to the pre-processing control instruction, and finally make the vehicle temperature within the vehicle preset temperature range acceptable to the user.

[0074] The vehicle temperature remote preprocessing control method provided by the present application is that the battery management system can comprehensively obtain various temperature information about the vehicle and feed it back to the client, so that the user can make decisions based on the comprehensive vehicle temperature information; the client can remotely wake up the vehicle through the CCS charging system, and obtain temperature information through the battery management system and send preprocessing control instructions to the battery management system, thereby realizing remote control and operation of the vehicle, which has strong flexibility; the battery management system can adjust the vehicle temperature to the preset temperature range of the vehicle according to the preprocessing control instructions before the vehicle is used, meet the user's usage needs, and bring a good driving experience to the driver and passengers.

[0075] In one embodiment, the vehicle temperature control system includes a battery thermal management system and a passenger area air-conditioning system, and the vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range; step 104 can also be implemented in the following manner: the battery management system collects the vehicle's external ambient temperature through the passenger area air-conditioning system, and obtains the normal temperature range of the vehicle's external environment; the battery management system controls the battery thermal management system to adjust the temperature of the battery system to within the battery system preset temperature range, and the battery management system controls the passenger area air-conditioning system to adjust the vehicle's passenger area temperature to within the passenger area preset temperature range.

[0076] In this embodiment, the vehicle temperature control system specifically includes a battery thermal management system and a passenger area air-conditioning system, which are used to adjust the temperature of the battery system and the vehicle passenger area, respectively. The ultimate goal is to adjust the temperature of the battery system to within the preset temperature range of the battery system, and adjust the temperature of the vehicle passenger area to within the preset temperature range of the passenger area. In addition, the passenger area air-conditioning system can also be used to collect the temperature environment outside the vehicle, and then feed back to the client so that the user can understand the driving environment of the vehicle. At the same time, the battery management system can also obtain the normal temperature range of the vehicle's external environment, that is, obtain the judgment standard for whether the vehicle's external temperature environment is in extreme conditions, so as to provide a basis for judgment on whether to perform temperature adjustment and charging in the future.

[0077] Furthermore, when the battery management system determines that the temperature of the battery system is within a preset temperature range of the battery system, the temperature of the vehicle's external environment is within a normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system controls the passenger area air-conditioning system to cool or heat the vehicle so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area; when the battery management system determines that the temperature of the battery system is outside the preset temperature range of the battery system, the temperature of the vehicle's external environment is outside the normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system first controls the battery thermal management system to adjust the temperature of the battery system to within the preset temperature range of the battery system, and the battery management system then controls the passenger area air-conditioning system to cool or heat the vehicle so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area.

[0078] In this embodiment, there is a certain order for the temperature adjustment of the battery system and the temperature adjustment of the passenger area of ​​the vehicle, that is, the temperature of the battery system must be ensured to be within the preset temperature range of the battery system before the temperature adjustment of the passenger area of ​​the vehicle can be performed. Considering that the temperature of the battery system is more worthy of attention, the normal temperature of the battery system can ensure that the vehicle can operate stably in different environments. Therefore, the temperature of the battery system needs to be judged in the entire pre-processing process, and the judgment situations are specifically divided into the following categories:

[0079] The minimum temperature of the battery system is defined as Tmin, the maximum temperature of the battery system is defined as Tmax, and the preset temperature range of the battery system is T0~T1; the temperature of the vehicle's external environment is defined as TE, and the normal temperature range of the vehicle's external environment is TN1~TN2; the temperature of the vehicle's passenger area is defined as TB, and the preset temperature range of the vehicle's passenger area is TC0~TC1;

[0080] In the first case, when the battery system temperature is normal, T0<Tmin, Tmax<T1, and the vehicle external environment is normal, TE∈(TN1, TN2);

[0081] When the temperature of the vehicle's passenger area is high and exceeds the preset temperature range of the vehicle's passenger area, TB>TC1, the battery management system only needs to control the cooling of the passenger area air conditioning system to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area, so that the passenger area reaches the comfortable temperature set by the user;

[0082] When the temperature of the vehicle's passenger area is low, lower than the preset temperature range of the vehicle's passenger area, TB<TC0, the battery management system only needs to control the passenger area air-conditioning system to heat the vehicle's passenger area to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area, so that the passenger area reaches the comfortable temperature set by the user.

[0083] In the second case, when the battery system temperature is too high and exceeds the preset temperature range of the battery system, Tmax>T1;

[0084] When the temperature of the vehicle's passenger area is high and exceeds the preset temperature range of the vehicle's passenger area, TB>TC1, and the vehicle's external environment exceeds the normal temperature range of the vehicle's external environment, TE>TN2, the battery management system first controls the battery thermal management system to cool the battery system until it reaches the preset temperature range of the battery system, and then controls the passenger area air conditioning system to cool the vehicle's passenger area to adjust the temperature to the preset temperature range of the passenger area, so that the passenger area reaches the comfortable temperature set by the user;

[0085] When the temperature of the vehicle's passenger area is low, lower than the preset temperature range of the vehicle's passenger area, TB<TC0, and the vehicle's external environment is lower than the normal temperature range of the vehicle's external environment, TE<TN1, the battery management system first controls the battery thermal management system to heat the battery system until the temperature reaches the preset temperature range of the battery system, and then the battery management system controls the passenger area air conditioning system to heat the vehicle, so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area, so that the passenger area reaches the comfortable temperature set by the user.

[0086] In the third case, when the battery system temperature is too low, lower than the preset temperature range of the battery system, T0<Tmin;

[0087] When the temperature of the vehicle's passenger area is low, lower than the preset temperature range of the vehicle's passenger area, TB<TC0, and the vehicle's external environment is lower than the normal temperature range of the vehicle's external environment, TE<TN1, the battery management system first controls the battery thermal management system to heat the battery system until the temperature reaches the preset temperature range of the battery system, and then the battery management system controls the passenger area air conditioning system to heat the vehicle, so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area, so that the passenger area reaches the comfortable temperature set by the user.

[0088] Furthermore, the preprocessing control instruction carries a preset temperature value for the passenger area; when the battery management system determines that the temperature of the battery system is within the preset temperature range of the battery system, the battery management system controls the passenger area air-conditioning system to cool or heat the vehicle so as to adjust the temperature of the passenger area to the preset temperature value for the passenger area.

[0089] In this embodiment, when the temperature of the battery system is within the preset temperature range of the battery system, the user can also adjust the temperature of the vehicle passenger area to the preset temperature value of the passenger area based on the temperature judgment of the vehicle's external environment and the analysis of the temperature of the vehicle passenger area, so that the user can adjust it according to their needs, which has strong flexibility and freedom.

[0090] For example: when the vehicle's external environment exceeds the normal temperature range of the vehicle's external environment, TE>TN2, and the vehicle's passenger area temperature is high and exceeds the vehicle's passenger area preset temperature range, TB>TC1, the battery management system controls the passenger area air conditioning system to cool the vehicle's passenger area to adjust the vehicle's passenger area temperature to within the passenger area preset temperature range, so that the passenger area reaches the passenger area preset temperature value set by the user;

[0091] When the vehicle's external environment exceeds the normal temperature range of the vehicle's external environment, TE<TN1, and the temperature of the vehicle's passenger area is low, lower than the vehicle's passenger area preset temperature range, TB<TC0, the battery management system controls the passenger area air-conditioning system to heat the vehicle to adjust the vehicle's passenger area temperature to within the passenger area preset temperature range, so that the passenger area reaches the passenger area preset temperature value set by the user.

[0092] In one embodiment, the preprocessing control instruction includes a charging control instruction, and the method further includes:

[0093] 105. The battery management system obtains the temperature and state of charge of the battery system in response to the charging control instruction, and obtains the preset charging temperature range and the threshold value of the preset state of charge of the battery system; when the temperature of the battery system is within the preset charging temperature range, and the state of charge of the battery system does not exceed the threshold value of the preset state of charge, the CCS charging system charges the battery system, and the charging request power of the battery system is less than or equal to the sum of the vehicle temperature control system, the allowable charging power of the battery system and the output power of the CCS charging system; when the temperature of the battery system is outside the preset charging temperature range, and / or the state of charge of the battery system exceeds the threshold value of the preset state of charge, the CCS charging system stops charging the battery system, and the charging request power of the battery system is less than or equal to the sum of the output powers of the vehicle temperature control system and the CCS charging system.

[0094] In this embodiment, after the battery management system enters the pre-processing process, it needs to make a charging power request judgment based on the temperature and charge state of the battery system, which is specifically divided into two situations:

[0095] In one case, the temperature of the battery system or the state of charge of the battery system does not meet the charging requirements, which means that directly charging the battery system under the current conditions may damage the battery performance or safety. At this time, the battery management system will prevent the CCS charging system from delivering power to the battery system. At this time, the charging request power ≤ (battery thermal management power) & charging pile output capacity, that is, the battery management system will only request enough power to start the battery thermal management system to adjust the battery temperature to an appropriate range. The total power requested cannot exceed the maximum output capacity of the charging pile. The purpose of this is to ensure that before the battery system reaches safe charging conditions, only the necessary power is used for pre-processing (such as heating or cooling), and no actual charging is performed to protect the battery.

[0096] In another case, if the temperature of the battery system or the state of charge of the battery system meets the charging requirements, it means that the battery system can be directly and safely charged under the current conditions. At this time, the battery management system will allow the CCS charging system to deliver power to the battery, and the charging request power must be ≤ (battery thermal management power + passenger area air conditioning power + battery system allowed charging power) & charging pile output capacity. The battery management system will comprehensively consider the battery thermal management system, passenger area air conditioning, and the maximum charging power that the battery itself can accept to ensure that the total requested power does not exceed the maximum output capacity of the charging pile. The purpose of doing this is to maximize the use of available power resources while ensuring safety, while taking into account the comfort of the passenger area and the optimal working conditions of the battery system.

[0097] In addition, the vehicle temperature remote pre-processing control method provided by the present application may also include the following steps:

[0098] The passenger area air conditioning system starts cooling or heating, and controls the temperature in the passenger area. The passenger area temperature is fed back to the battery management system, and the start status and real-time temperature changes of the passenger area air conditioning system are fed back to the client. At the same time, the passenger area air conditioning system automatically adjusts and controls the working state;

[0099] According to the vehicle pretreatment status feedback from the client, the user can determine whether the pretreatment needs to continue according to usage requirements. When the user determines that the pretreatment meets the usage requirements, the pretreatment function is turned off through the client. At the same time, the user's functional needs are promptly controlled to the battery control system through the CCS charging system, and the pretreatment function is turned off, allowing the vehicle to enter the dormant state again.

[0100] In one embodiment of the vehicle temperature remote pre-processing control method provided in the present application, a vehicle is parked for several consecutive days when the outdoor ambient temperature is -20°C or lower. The user needs to use the vehicle later and turns on the pre-processing function through the client. Figure 3 It can be seen that after the pretreatment function is turned on, the priority of the battery pretreatment control and the impact of the startup state attempt on the battery. First, the battery management system detects that the temperature of the battery system is low, and controls the battery thermal management system to prioritize the heating function. The internal resistance of the battery system increases at low temperature, and the voltage of the battery system is rapidly reduced. The heating is continuously turned on. When the battery system temperature slowly rises, the battery system voltage also rises. At this time, the pretreatment is turned on, the discharge power increases, and the current rises rapidly. After being turned on for a short time, considering the discharge power limit at this time, the pretreatment function is turned off again. After a period of time, it is repeatedly turned on. When the battery system temperature reaches the preset temperature range of the battery system, the heating function of the battery system is turned off, and the passenger area temperature pretreatment process is started normally, and adjustment begins according to the set passenger area temperature pretreatment target temperature.

[0101] In another embodiment of the vehicle temperature remote pre-processing control method provided in the present application, the client turns on the pre-processing function. In the initial state of charging, the temperature of the battery system is too low to store the grid energy into the battery system. Therefore, the battery management system turns on the heating function. Figure 4 As shown, the maximum allowable temperature and the average temperature of the battery system continue to rise synchronously, and all the energy obtained from the power grid is provided to the battery thermal management heating system. Therefore, the charging current of the battery system continues to be displayed as 0A. Energy is not allowed to enter the battery system for storage until the battery temperature is above 0℃. Therefore, the charging current is a horizontal line in the early stage and rises rapidly in the later stage. As the battery temperature continues to rise, the battery management system requests the CCS charging system to increase the power, allowing energy to enter the battery and continue to increase until the battery system's state of charge reaches 100% and stops.

[0102] It is worth noting that the technical solution provided in this application is not limited to vehicle-mounted energy, but also includes all fields where power batteries can be used, such as ships, photovoltaics, and mobile terminals. Charging pre-processing can be used for control, and the data transmission used in this application is wired communication and wireless communication methods. The client needs to complete PC and mobile terminal development.

[0103] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0104] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A temperature remote pre-processing control device based on a CCS charging system, applied to a vehicle connected to a CCS charging system, characterized in that: The device includes a client, a battery management system, a vehicle temperature control system and a battery system; The client is connected to the battery management system through the CCS charging system, and the battery management system is connected to the vehicle temperature control system and the battery system respectively; The battery management system is used to obtain vehicle temperature information and send the vehicle temperature information to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area and the vehicle external environment temperature; The client is used to send a pre-processing control instruction to the battery management system according to the vehicle temperature information, wherein the pre-processing control instruction carries a preset temperature range of the vehicle; The battery management system is used for controlling the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the preset vehicle temperature range.

2. The temperature remote preprocessing control device based on the CCS charging system according to claim 1 is characterized in that: The vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range; The vehicle temperature regulation system includes a battery thermal management system and a passenger area air conditioning system, wherein the battery thermal management system and the passenger area air conditioning system are respectively connected to the battery management system, and the battery thermal management system is connected to the battery system; The battery thermal management system is used to adjust the temperature of the battery system to within a preset temperature range of the battery system based on the control of the battery management system; The passenger area air conditioning system is used to adjust the temperature of the vehicle passenger area to a preset temperature range of the passenger area based on the control of the battery management system.

3. The temperature remote pre-processing control device based on the CCS charging system according to claim 2 is characterized in that: The device also includes a vehicle controller; The vehicle controller is respectively connected to the battery management system, the battery thermal management system and the passenger area air conditioning system; The battery management system is used to send an activation instruction to the vehicle controller in response to the pre-processing control instruction; The vehicle controller is used to control the battery thermal management system and the passenger area air conditioning system to be in a standby state in response to the activation instruction.

4. The temperature remote pre-processing control device based on the CCS charging system according to claim 2 is characterized in that: The passenger area air conditioning system is provided with a temperature sensor, and the temperature sensor is used to collect the temperature of the external environment of the vehicle and / or the temperature of the passenger area of ​​the vehicle.

5. The temperature remote pre-processing control device based on the CCS charging system according to claim 1 is characterized in that: The battery management system is also used to obtain the temperature and charge state of the battery system; When the temperature of the battery system is within a preset charging temperature range and the state of charge of the battery system does not exceed a preset state of charge threshold, the CCS charging system charges the battery system; When the temperature of the battery system is outside a preset charging temperature range, and / or the state of charge of the battery system exceeds a preset state of charge threshold, the CCS charging system stops charging the battery system.

6. A temperature remote preprocessing control method based on a CCS charging system, applied to a temperature remote preprocessing control device based on a CCS charging system as claimed in any one of claims 1 to 5, characterized in that: The method comprises: The client generates a vehicle temperature information acquisition instruction, and sends the vehicle temperature information acquisition instruction to the battery management system through the CCS charging system; The battery management system obtains vehicle temperature information in response to the vehicle temperature information acquisition instruction and sends the vehicle temperature information to the client, wherein the vehicle temperature information includes the temperature of the battery system, the temperature of the vehicle passenger area, and the temperature of the vehicle's external environment; The client generates a preprocessing control instruction according to the vehicle temperature information and sends it to the battery management system, wherein the preprocessing control instruction carries a preset temperature range of the vehicle; The battery management system controls the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the vehicle preset temperature range.

7. The temperature remote preprocessing control method based on the CCS charging system according to claim 6 is characterized in that: The vehicle temperature adjustment system includes a battery thermal management system and a passenger area air conditioning system, the vehicle preset temperature range includes a battery system preset temperature range and a passenger area preset temperature range; the battery management system controls the vehicle temperature adjustment system to adjust the vehicle temperature in response to the pre-processing control instruction so that the vehicle temperature is within the vehicle preset temperature range, including: The battery management system collects the vehicle's external ambient temperature through the passenger area air conditioning system and obtains a normal temperature range of the vehicle's external environment; The battery management system controls the battery thermal management system to adjust the temperature of the battery system to within a preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within a preset temperature range of the passenger area.

8. The temperature remote preprocessing control method based on the CCS charging system according to claim 7 is characterized in that: The battery management system controls the battery thermal management system to adjust the temperature of the battery system to within a preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within a preset temperature range of the passenger area, including: When the battery management system determines that the temperature of the battery system is within the preset temperature range of the battery system, the temperature of the vehicle's external environment is within the normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system controls the passenger area air conditioning system to cool or heat the vehicle so as to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area; When the battery management system determines that the temperature of the battery system is outside the preset temperature range of the battery system, the temperature of the vehicle's external environment is outside the normal temperature range of the vehicle's external environment, and the temperature of the vehicle's passenger area is outside the preset temperature range of the passenger area, the battery management system first controls the battery thermal management system to adjust the temperature of the battery system to within the preset temperature range of the battery system, and then controls the passenger area air-conditioning system to cool or heat to adjust the temperature of the vehicle's passenger area to within the preset temperature range of the passenger area.

9. The temperature remote preprocessing control method based on the CCS charging system according to claim 7 is characterized in that: The pre-processing control instruction carries a preset temperature value of the passenger area; the battery management system controls the battery thermal management system to adjust the temperature of the battery system to within the preset temperature range of the battery system, and the battery management system controls the passenger area air conditioning system to adjust the temperature of the vehicle passenger area to within the preset temperature range of the passenger area, including: When the battery management system determines that the temperature of the battery system is within a preset temperature range of the battery system, the battery management system controls the passenger area air conditioning system to cool or heat the vehicle passenger area to adjust the temperature of the passenger area to the preset temperature value of the passenger area.

10. The temperature remote preprocessing control method based on the CCS charging system according to claim 6 is characterized in that: The preprocessing control instruction includes a charging control instruction; the method further includes: The battery management system obtains the temperature and state of charge of the battery system in response to the charging control instruction, and obtains a preset charging temperature range and a preset state of charge threshold of the battery system; When the temperature of the battery system is within a preset charging temperature range and the state of charge of the battery system does not exceed a preset state of charge threshold, the CCS charging system charges the battery system, and the charging request power of the battery system is less than or equal to the sum of the vehicle temperature adjustment system, the allowable charging power of the battery system, and the output power of the CCS charging system; When the temperature of the battery system is outside a preset charging temperature range, and / or the state of charge of the battery system exceeds a preset state of charge threshold, the CCS charging system stops charging the battery system, and the charging request power of the battery system is less than or equal to the sum of the output powers of the vehicle temperature control system and the CCS charging system.

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