Control method and device of vehicle thermal management system and vehicle

Abstract

The application discloses a control method and device of a vehicle thermal management system and a vehicle. The method comprises the following steps: obtaining battery information and environment information of the vehicle, wherein the battery information comprises a state of charge and a battery temperature, and the environment information is used for representing information of an environment through which the vehicle travels from a current position to a target position; determining a target temperature range of the vehicle battery based on the state of charge and the environment information, wherein a charging or discharging capacity of the vehicle battery at each temperature in the target temperature range is higher than charging or discharging capacities of the vehicle battery at other temperatures; and controlling the thermal management system of the vehicle based on the target temperature range, the battery temperature and the environment information. The application solves the technical problem of poor timeliness of changing a power assembly temperature by controlling the thermal management system in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle control, in particular to a control method and device of a vehicle thermal management system and a vehicle. BACKGROUND

[0002] At present, the thermal management system of the plug-in hybrid vehicle is to transmit the cooling medium to each power assembly in the vehicle through the pipeline, so that the cooling medium exchanges heat with the power assembly and the external environment, thereby controlling the power assembly to work in a suitable temperature range.

[0003] However, the current control strategy of the thermal management system is to adjust the current power assembly temperature by using the current power assembly state, which will make the whole control process relatively lagging, and the timeliness of controlling the power assembly to change the current temperature is poor, which may cause the temperature change of the power assembly to not meet the expected requirement, and further affect the working efficiency of the power assembly.

[0004] At present, no effective solution has been proposed for the above problems. SUMMARY

[0005] The embodiments of the present application provide a control method and device of a vehicle thermal management system and a vehicle, to at least solve the technical problem of poor timeliness of controlling the thermal management system to change the temperature of the power assembly in the related art.

[0006] According to an aspect of the embodiments of the present application, a control method of a vehicle thermal management system is provided, the method comprising: obtaining battery information and environment information of the vehicle, wherein the battery information comprises a state of charge and a battery temperature, and the environment information is used to represent information of an environment through which the vehicle travels from a current location to a target location; determining a target temperature range of the battery of the vehicle based on the state of charge and the environment information, wherein a charging or discharging capability of the battery of the vehicle at each temperature in the target temperature range is higher than a charging or discharging capability of the battery of the vehicle at other temperatures; and controlling the thermal management system of the vehicle based on the target temperature range, the battery temperature and the environment information.

[0007] Optionally, the environment information at least comprises a target driving distance, and the target driving distance is used to represent a distance from the current location to the target location, and the target temperature range of the battery of the vehicle is determined based on the state of charge and the environment information, comprising: determining a battery state of the battery of the vehicle based on the state of charge and the distance, wherein the battery state is used to represent whether the battery of the vehicle needs to be charged; and determining the target temperature range based on the battery state and the environment information.

[0008] Optionally, determining the battery state of the vehicle battery based on the state of charge and the target driving distance comprises: in response to the state of charge being normal, determining that the battery state is that the vehicle battery does not need to be charged; in response to the state of charge being abnormal and the target driving distance being greater than a first distance threshold, determining that the battery state is that the vehicle battery needs to be charged; and in response to the state of charge being abnormal and the target driving distance being not greater than the first distance threshold, determining that the battery state is that the vehicle battery does not need to be charged.

[0009] Optionally, the environmental information further comprises a road type, a device type and a device distance, the road type is used to represent a type of a current driving road of the vehicle, the device type is used to represent a type of a target charging device passed by the vehicle during a process of driving from a current position to a target position, and the device distance is used to represent a distance from the current position to a position where the target charging device is located. Based on the battery state environmental information, the target temperature interval is determined, comprising: in response to the battery state being that the vehicle battery does not need to be charged, determining the target temperature interval based on the road type; and in response to the battery state being that the vehicle battery needs to be charged, determining the target temperature interval based on the device type and the device distance.

[0010] Optionally, the environmental information at least comprises an environmental temperature, a road type, a device type and a device distance. Based on the target temperature interval, the battery temperature and the environmental information, the thermal management system of the vehicle is controlled, comprising: obtaining a battery state of a vehicle battery; in response to the battery state being that the vehicle battery does not need to be charged, controlling the thermal management system based on the battery temperature, the environmental temperature, the road type and the target temperature interval; and in response to the battery state being that the vehicle needs to be charged, controlling the thermal management system based on the battery temperature, the environmental temperature, the target temperature interval, the device distance and the device type.

[0011] Optionally, controlling the thermal management system based on the battery temperature, the environmental temperature, the road type and the target temperature interval comprises: determining a first running power and a first running type based on the battery temperature, the environmental temperature and the road type, wherein the running type is used to represent a type of the thermal management system performing a heating function or a cooling function; and controlling a motor circulation loop of the thermal management system based on the first running power and the first running type.

[0012] Optionally, controlling the thermal management system based on the battery temperature, the environmental temperature, the target temperature interval, the device distance and the device type comprises: in response to the battery temperature, the environmental temperature, the device distance and the device type, determining a second running power and a second running type; and controlling other circulation loops of the thermal management system based on the second running power and the second running type, wherein the other circulation loops are used to represent circulation loops other than the motor circulation loop in the thermal management system.

[0013] Optionally, the environment information at least comprises a device distance, the method further comprises: obtaining a battery state of the vehicle battery and the device distance; in response to the battery state being that the vehicle battery does not need to be charged, determining the driving state as the hybrid driving state; in response to the battery state being that the vehicle battery needs to be charged and the device distance being greater than a second distance threshold, determining the driving state as the engine driving state; in response to the battery state being that the vehicle battery needs to be charged and the device distance being not greater than the second distance threshold, determining the driving state as the pure electric driving state.

[0014] According to another aspect of the embodiments of the present application, a control method and device of a vehicle thermal management system and a vehicle are further provided to at least solve the technical problem of poor timeliness of changing power assembly temperature of the thermal management system in the related art.

[0015] According to an aspect of the embodiments of the present application, a control device of a vehicle thermal management system is provided, the device comprising: an obtaining module configured to obtain battery information and environment information of a vehicle, wherein the battery information comprises a state of charge and a battery temperature, and the environment information is used to represent information of an environment through which the vehicle travels from a current location to a target location; a determining module configured to determine a target temperature range of the vehicle battery based on the state of charge and the environment information, wherein a charging or discharging capability of the vehicle battery at each temperature in the target temperature range is higher than a charging or discharging capability of the vehicle battery at other temperatures; and a control module configured to control a thermal management system of the vehicle based on the target temperature range, the battery temperature and the environment information.

[0016] Optionally, the environment information at least comprises a target driving distance, and the target driving distance is used to represent a distance from the current location to the target location, and the determining module comprises: a first determining unit configured to determine a battery state of the vehicle battery based on the state of charge and the distance, wherein the battery state is used to represent whether the vehicle battery needs to be charged; and a second determining unit configured to determine the target temperature range based on the battery state and the environment information.

[0017] Optionally, the first determining unit is further configured to: in response to the state of charge being normal, determine that the battery state is that the vehicle battery does not need to be charged; in response to the state of charge being abnormal and the target driving distance being greater than a first distance threshold, determine that the battery state is that the vehicle battery needs to be charged; and in response to the state of charge being abnormal and the target driving distance being not greater than the first distance threshold, determine that the battery state is that the vehicle battery does not need to be charged.

[0018] Optionally, the environment information further comprises a road type, a device type and a device distance, the road type is used to represent a type of a current driving road of the vehicle, the device type is used to represent a type of a target charging device passed by the vehicle during a process of driving from a current position to a target position, and the device distance is used to represent a distance from the current position to a position of the target charging device, and the second determining unit is further configured to: in response to the battery state being that the vehicle battery does not need to be charged, determine the target temperature interval based on the road type; and in response to the battery state being that the vehicle battery needs to be charged, determine the target temperature interval based on the device type and the device distance.

[0019] Optionally, the environment information at least comprises an environment temperature, a road type, a device type and a device distance, and the control module comprises: a state obtaining unit, configured to obtain a battery state of a vehicle battery; a first control unit, configured to, in response to the battery state being that the vehicle battery does not need to be charged, control the thermal management system based on the battery temperature, the environment temperature, the road type and the target temperature interval; and a second control unit, configured to, in response to the battery state being that the vehicle needs to be charged, control the thermal management system based on the battery temperature, the environment temperature, the target temperature interval, the device distance and the device type.

[0020] Optionally, the first control unit is further configured to: determine a first operation power and a first operation type based on the battery temperature, the environment temperature and the road type, wherein the operation type is used to represent a type of the thermal management system performing a heating function or a cooling function; and control a motor circulation loop of the thermal management system based on the first operation power and the first operation type.

[0021] Optionally, the second control unit is further configured to: determine a second operation power and a second operation type based on the battery temperature, the environment temperature, the device distance and the device type; and control other circulation loops of the thermal management system based on the second operation power and the second operation type, wherein the other circulation loops are used to represent circulation loops of the thermal management system other than the motor circulation loop.

[0022] Optionally, the environment information at least comprises the device distance, and the device further comprises: a parameter obtaining module, configured to obtain the battery state of the vehicle battery and the device distance; a first driving state determining module, configured to, in response to the battery state being that the vehicle battery does not need to be charged, determine the driving state as a hybrid driving state; a second driving state determining module, configured to, in response to the battery state being that the vehicle battery needs to be charged and the device distance being greater than a second distance threshold, determine the driving state as an engine driving state; and a third driving state determining module, configured to, in response to the battery state being that the vehicle battery needs to be charged and the device distance being not greater than the second distance threshold, determine the driving state as an electric driving state.

[0023] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, including a stored program, wherein the program, when executed by a device in which the computer-readable storage medium is located, controls the device to perform the method for controlling the vehicle thermal management system according to any one of the preceding embodiments.

[0024] According to another aspect of the embodiments of the present application, a processor is provided, wherein the program of the processor, when executed, performs the method for controlling the vehicle thermal management system according to any one of the preceding embodiments.

[0025] According to another aspect of the embodiments of the present application, a target vehicle is provided, including one or more processors, and a storage device configured to store one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to perform the method for controlling the vehicle thermal management system according to any one of the preceding embodiments.

[0026] In the embodiments of the present application, the battery information and the environmental information of the vehicle are acquired, wherein the battery information includes the state of charge and the battery temperature; the target temperature range of the battery of the vehicle is determined based on the state of charge and the environmental information; and the manner of controlling the thermal management system of the vehicle is controlled based on the target temperature range, the battery temperature and the environmental information. The best working temperature range, i.e., the target temperature range, of the battery of the vehicle when the vehicle drives on a road is determined according to the state of charge of the battery and the environmental information corresponding to the road, and the working temperature of the battery of the vehicle on the road is further adjusted by using the environmental information and the battery temperature, so that the temperature of the battery of the vehicle can be kept in the target temperature range in the following operations, such as charging and discharging, thereby solving the technical problem of poor timeliness of changing the temperature of the power assembly by the thermal management system in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0028] Figure 1 FIG. 1 is a flowchart of a method for controlling a vehicle thermal management system according to an embodiment of the present application;

[0029] Figure 2 FIG. 2 is a structural schematic diagram of a thermal management system according to an embodiment of the present application;

[0030] Figure 3 FIG. 3 is a structural block diagram of a control device of a vehicle thermal management system according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application by persons skilled in the art. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative work should belong to the protection scope of the present application.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Embodiment 1

[0034] According to the embodiments of the present application, a method embodiment of controlling a vehicle thermal management system is provided. It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0035] Figure 1 is a flowchart of a method of controlling a vehicle thermal management system according to an embodiment of the present application, as shown in Figure 1 the method comprises the following steps:

[0036] Step S102, obtaining battery information and environmental information of the vehicle.

[0037] The battery information includes state of charge and battery temperature, and the environmental information is used to represent the information of the environment through which the vehicle travels from the current position to the target position.

[0038] Considering that there is a time difference from sending a control instruction to the thermal management system to the thermal management system changing the temperature of the power assembly according to the control instruction, the final temperature change process of the power assembly has a certain hysteresis, resulting in that the final temperature change result does not meet the expectation, therefore, the control system of the vehicle thermal management system (hereinafter referred to as the control system) can predict the optimal working temperature range of the power assembly of the vehicle in the next period of time in advance, so as to ensure the timeliness of controlling the temperature change of the power assembly by the thermal management system, and enable the power assembly to work in the optimal temperature range.

[0039] In an optional solution of the embodiment, since the hybrid drive vehicle can be driven by the power motor and the engine associated with the vehicle battery at the same time, for the convenience of understanding, the vehicle battery, the power motor and the engine can be selected as the above-mentioned power assembly, and the state of the vehicle battery, the power motor and the engine is used to control the operation of the thermal management system, so that the vehicle battery can operate in the optimal temperature range.

[0040] Specifically, in order to enable the vehicle battery to work in the optimal temperature range, the control system can monitor the information of the vehicle battery and the environmental information corresponding to the driving road of the vehicle in the future period of time in real time.

[0041] In an optional solution of the embodiment, considering that the optimal temperature range of the vehicle battery when working is affected by the state of charge and the battery temperature of the battery, therefore, when obtaining the battery information, the state of charge and the battery temperature of the vehicle battery can be mainly detected, so as to indirectly improve the accuracy of determining the optimal temperature range of the vehicle battery when working.

[0042] In an optional solution of the embodiment, the control system can obtain the environmental information corresponding to the driving road of the vehicle from the current position to the target position through the navigation information, or can estimate the urban area that the vehicle is likely to pass through according to the driving direction of the vehicle through the urban traffic management system, and then obtain the environmental information corresponding to the urban area. The specific method of obtaining the environmental information is not limited.

[0043] In step S104, the target temperature range of the vehicle battery is determined based on the state of charge and the environmental information.

[0044] The charging or discharging capacity of the vehicle battery at each temperature in the target temperature range is higher than the charging or discharging capacity of the vehicle battery at other temperatures.

[0045] The above-mentioned target temperature range can refer to the temperature range in which the working efficiency of the power assembly of the vehicle, for example, the vehicle battery, is higher. When the temperature of the vehicle battery is in the above-mentioned target temperature range, the corresponding working efficiency is higher than the corresponding working efficiency when the temperature is out of the target temperature range.

[0046] In an optional solution of the embodiment, the working efficiency of the battery can be determined by using the charging and discharging efficiency of the vehicle battery.

[0047] In an optional solution of the embodiment, considering that the running state of the vehicle battery in the next period of time is not the same under different states of charge and different environments, and the corresponding heat change trend is also not the same, therefore, when determining the target temperature range, after obtaining the battery information and the environmental information of the vehicle, the state of charge in the battery information and the environmental information can be used to determine the target temperature range of the vehicle battery.

[0048] In step S106, the thermal management system of the vehicle is controlled based on the target temperature range, the battery temperature and the environmental information.

[0049] In an optional solution of the embodiment, after obtaining the target temperature range, the control system can dynamically control the thermal management system of the vehicle according to the target temperature range, so that the power assembly of the vehicle, for example, the vehicle battery, works in the target temperature range. The control system can further combine the battery temperature and the environmental information and other parameters when controlling the thermal management of the vehicle, and the reasons are as follows:

[0050] In an optional solution of the embodiment, the initial temperature of the vehicle battery under different conditions will be different, for example, if the current power of the vehicle battery is insufficient, the power generation power of the vehicle battery will be small, which will also cause the battery temperature to be low; if the current power of the vehicle battery is reorganized, the power generation power of the vehicle battery will be large, which will also cause the battery temperature to be high, which means that the gap between the initial temperature of the vehicle battery and the target temperature range is also different. When the control system controls the thermal management system to run, so that the temperature of the vehicle battery can be stabilized in the target temperature range in the next period of time, the running state of the thermal management system will also be different, for example, if the gap is large, the thermal management system can run multiple cooling or heating modules at the same time to improve the efficiency of the vehicle battery to reach the target temperature range; if the gap is small, the thermal management system can run fewer or no cooling or heating modules to reduce the working pressure of the control system and the thermal management system, therefore, when controlling the thermal management system of the vehicle, the current initial temperature of the battery, that is, the battery temperature mentioned above, also needs to be further considered.

[0051] In an optional solution of the embodiment, different environmental information also has an impact on the temperature change of the battery. For example, if the vehicle is in front of a red light, the vehicle battery may be in standby state, continuously generating electricity but the electricity cannot be effectively dissipated, which may cause the temperature of the vehicle battery to rise. If the vehicle is usually on the road, the driving speed of the vehicle may be faster, and the operating power of the vehicle battery may be larger, which may cause the temperature of the vehicle battery to rise. When the control system controls the heat management system to operate so that the temperature of the vehicle battery can be stabilized in the target temperature range in the next operation, the operating state of the heat management system may also be different. For example, if the operating power of the vehicle battery is large, the temperature of the vehicle battery may continuously rise and the rising speed may be fast, and the heat management system may operate more cooling modules to improve the efficiency of controlling the temperature of the vehicle battery in the target temperature range. If the vehicle battery is in standby state, the temperature of the vehicle battery may rise but the rising amplitude may be small, and the heat management system may operate fewer cooling modules to reduce the operating pressure of the control system and the heat management system. Therefore, the environmental information may be further considered when the heat management system of the vehicle is controlled.

[0052] In the embodiment of the application, the battery information and the environmental information of the vehicle are acquired, the battery information includes the state of charge and the battery temperature, the target temperature range of the vehicle battery is determined based on the state of charge and the environmental information, and the mode of the heat management system of the vehicle is controlled based on the target temperature range, the battery temperature and the environmental information. The best working temperature range of the vehicle battery, i.e., the target temperature range, is determined according to the state of charge of the battery and the environmental information of the road on which the vehicle is expected to travel, so that the working temperature of the vehicle battery in the road is adjusted by using the environmental information and the battery temperature, so that the temperature of the vehicle battery can be maintained in the target temperature range in the next operation, such as charging and discharging, thereby solving the technical problem of poor timeliness of changing the temperature of the power assembly by the heat management system in the related art.

[0053] Optionally, the environmental information at least includes a target driving distance, the target driving distance is used to represent the distance from the current position to the target position, the target temperature range of the vehicle battery is determined based on the state of charge and the environmental information, and the target temperature range of the vehicle battery is determined based on the state of charge and the distance, the battery state is determined, wherein the battery state is used to represent whether the vehicle battery needs to be charged, and the target temperature range is determined based on the battery state and the environmental information.

[0054] The target driving distance may be the distance generated when the vehicle travels from the current position to the target position in the environmental information.

[0055] In an optional solution of the embodiment, since the corresponding charging and discharging efficiency, the size of output power and other information are different when the battery needs to be charged and does not need to be charged, and the optimal temperature interval during working is also different, it can be firstly judged whether the vehicle battery currently needs to be charged, that is, the battery state of the vehicle battery is determined, and then the target temperature interval is determined according to the battery state of the vehicle and the environmental information.

[0056] In an optional solution of the embodiment, it is considered that if the vehicle can travel to the target position with the current state of charge, it means that the vehicle can complete the preset travel route and does not need to be charged; if the vehicle cannot travel to the target position with the current state of charge and needs to be driven by the engine or needs to be charged halfway to complete the preset travel route, it can be determined that the vehicle needs to be charged.

[0057] Therefore, the travel distance of the vehicle from the current position to the target position, that is, the above-mentioned target travel distance, can be further considered, and then the battery state of the vehicle battery is determined according to the state of charge of the vehicle and the target travel distance, that is, whether the vehicle needs to be charged during the process of traveling from the current position to the target position.

[0058] Alternatively, the battery state of the vehicle battery is determined based on the state of charge and the target travel distance, including: in response to the state of charge being normal, determining that the battery state is that the vehicle battery does not need to be charged; in response to the state of charge being abnormal and the target travel distance being greater than a first distance threshold, determining that the battery state is that the vehicle battery needs to be charged; and in response to the state of charge being abnormal and the target travel distance being not greater than the first distance threshold, determining that the battery state is that the vehicle battery does not need to be charged.

[0059] In an optional solution of the embodiment, when determining the battery state of the vehicle battery, it can be firstly judged whether the state of charge of the vehicle battery is normal, if the state of charge is normal, it means that the current power of the vehicle battery is more, and the vehicle battery does not need to be charged; if the state of charge is abnormal, it means that the current power of the vehicle battery is less, and the vehicle battery needs to be charged.

[0060] Specifically, in the case of abnormal state of charge, the target travel distance can be compared with the first distance threshold, if the target travel distance is greater than the first distance threshold, it can be considered that the vehicle cannot travel to the target position with the current state of charge, and the vehicle battery needs to be charged; if the target travel distance is not greater than the first distance threshold, it can be considered that the vehicle can travel to the target position with the current state of charge, and the vehicle does not need to be charged.

[0061] In an optional solution of the embodiment, the first distance threshold can be dynamically determined according to the state of charge, for example, the staff can test the relationship between the power and the driving distance in advance according to the type of the vehicle or the type of the vehicle battery, determine the maximum driving distance of the vehicle at different states of charge, and then construct a power-distance relationship table according to the state of charge and the corresponding maximum driving distance. The control system can determine the maximum driving distance of the vehicle battery at the current state of charge according to the relationship table, as the first distance threshold. In order to avoid excessive use of the vehicle battery and cause the battery to be damaged, the control system can also reduce the maximum driving distance, for example, take the distance corresponding to 80% of the maximum driving distance as the first distance threshold.

[0062] In an optional solution of the embodiment, the current state of charge of the vehicle battery can be compared with a power preset value to determine whether the current state of charge of the vehicle battery is normal. If the state of charge is greater than the power preset value, it can be considered that the state of charge of the vehicle battery is normal; if the state of charge is not greater than the power threshold, it can be considered that the state of charge of the vehicle battery is not normal.

[0063] It should be noted that the process of determining the first distance threshold and whether the state of charge is normal is only exemplary and is not limited.

[0064] Optionally, the environmental information further includes a road type, a device type, and a device distance, the road type is used to represent the type of the current driving road of the vehicle, the device type is used to represent the type of the target charging device passed through by the vehicle during driving from the current position to the target position, and the device distance is used to represent the distance from the current position to the position of the target charging device. Based on the battery state environmental information, the target temperature interval is determined, including: in response to the battery state being that the vehicle battery does not need to be charged, determining the target temperature interval based on the road type; and in response to the battery state being that the vehicle battery needs to be charged, determining the target temperature interval based on the device type and the device distance.

[0065] In an optional solution of the embodiment, since the charging device used to charge the vehicle battery has two types of direct-current charging device and alternating-current charging device, and the charging efficiency, the optimal charging temperature interval and other parameters corresponding to different types of charging devices are different. Therefore, the control system can further consider the device type corresponding to the target charging device when determining the target temperature interval. The target charging device can be the charging device closest to the current position of the vehicle, can be the charging device selected by the driver himself, or can be the charging device selected by the control system according to the model and performance of the vehicle.

[0066] In an optional solution of the embodiment, due to different road types, for example, in road congestion, road normal conditions, the output power of the vehicle battery is different, and the corresponding optimal temperature interval of the battery during operation is also different. Therefore, the control system can further consider the road type corresponding to the current driving road of the vehicle when determining the temperature interval.

[0067] When determining the target temperature interval corresponding to the vehicle battery, the road type, device type and device distance in the environmental information can be acquired first, wherein the device distance can refer to the driving distance of the vehicle from the current position to the position of the target charging device.

[0068] When the battery does not need to be charged, it means that the vehicle battery can currently be used as the main power to drive the vehicle to travel, and the charging device and the device type of the charging device do not need to be determined at present. Therefore, the target temperature interval corresponding to the vehicle battery can be directly determined according to the road type in the above-mentioned environmental information at this time.

[0069] When the battery needs to be charged, it means that the engine is currently used as the main power to drive the vehicle to travel, and the vehicle battery is used as the auxiliary power or does not provide power. At this time, the target temperature interval corresponding to the vehicle battery can be determined according to the device type and device distance in the above-mentioned environmental information.

[0070] Optionally, determining the target temperature interval based on the road type comprises: in response to the road type being a first preset type, determining the target temperature interval to be a low-speed temperature interval; in response to the road type being a second preset type, determining the target temperature interval to be a medium-speed temperature interval, wherein the maximum driving speed corresponding to the road of the second preset type is greater than the maximum driving speed corresponding to the road of the first preset type; and in response to the road type being a third preset type, determining the target temperature interval to be a high-speed temperature interval, wherein the maximum driving speed corresponding to the road of the third preset type is greater than the maximum driving speed corresponding to the road of the second preset type.

[0071] The first preset type can refer to the type of the driving road when the road is congested, and the driving speed of the vehicle is low at this time. The second preset type can refer to the type of the driving road that is smooth but has a highest speed limit, for example, a smooth urban road, and the driving speed of the vehicle is moderate at this time. The third preset type can refer to the type of the driving road that has the lowest speed limit and a high speed limit, for example, a highway.

[0072] In an optional solution of the embodiment, when the vehicle battery does not need to be charged, the vehicle can drive with the vehicle battery driving the main power, and the control system can first acquire the road type of the current driving road, and determine the target temperature interval corresponding to the vehicle battery according to the road type. Generally, in order to maintain the operation performance of the vehicle battery, the working temperature of the vehicle battery can be maintained within a preset temperature interval, for example, between 20℃ and 40℃, therefore, the control system can adjust the above-mentioned preset temperature interval, for example, the temperature interval [20, 40], according to the road type, to obtain the optimal temperature interval for the current working of the vehicle battery, that is, the above-mentioned target temperature interval.

[0073] Specifically, if the above-mentioned road type is a first preset type, at this time the vehicle battery needs to operate at low power, and the corresponding temperature interval is also low, therefore, at this time the above-mentioned preset temperature interval can be reduced to obtain the above-mentioned low-speed temperature interval, for example, the temperature interval [20, 40] is reduced to obtain the low-speed temperature interval [16, 32].

[0074] If the above-mentioned road type is a second preset type, at this time the vehicle battery needs to operate at medium power, and the corresponding temperature interval is moderate, therefore, at this time the above-mentioned preset temperature interval can be directly used as the above-mentioned medium-speed temperature interval.

[0075] If the above-mentioned road type is a third preset type, at this time the vehicle battery needs to operate at high power, and the corresponding temperature interval is also high, therefore, at this time the above-mentioned preset temperature interval can be enlarged to obtain the above-mentioned high-speed temperature interval, for example, the temperature interval [20, 40] is enlarged to obtain the high-speed temperature interval [24, 48].

[0076] It should be noted that the size of the above-mentioned preset temperature interval, the scaling and enlargement of the preset temperature interval, and the like are exemplary and illustrative, and the determination of the specific temperature interval needs to be determined according to the actual situation, which is not limited herein.

[0077] Optionally, determining the target temperature interval based on the device type and the device distance comprises: in response to the device type being direct current type and the device distance being greater than a first preset distance, determining the target temperature interval as a first direct current temperature interval; in response to the device type being direct current type and the device distance being not greater than the first preset distance, determining the target temperature interval as a second direct current temperature interval; in response to the device type being alternating current type and the device distance being greater than the first preset distance, determining the target temperature interval as a first alternating current temperature interval; and in response to the device type being alternating current type and the device distance being not greater than the first preset distance, determining the target temperature interval as a second alternating current temperature interval.

[0078] In an optional solution of the embodiment, when the vehicle battery needs to be charged, due to different device types of the target charging device, the corresponding charging efficiency is also different, and therefore, in order to improve the charging efficiency of the battery, different temperature intervals can be determined for different device types.

[0079] In an optional solution of the embodiment, the staff can test the efficiency of charging the vehicle battery by using different types of charging devices in advance, determine the charging temperature when the charging efficiency is greater than a certain efficiency threshold, and generate the temperature interval with the highest charging efficiency corresponding to different device types based on the charging temperature, and establish a device type-temperature interval table according to the device type and the temperature interval with the highest charging efficiency.

[0080] In an optional solution of the embodiment, when the vehicle travels from the current driving position to the position corresponding to the target charging device, if the distance is short, the vehicle can continue to be driven by the vehicle battery as the main power; if the distance is far, the vehicle can be driven by the engine as the main power. Since the optimal temperature interval of the vehicle battery when working is different under different driving states, the above device distance can be further considered when determining the target temperature interval.

[0081] Specifically, case one: if the device type of the target charging device is a direct current type, and the above device distance is far, i.e., the device distance is greater than a first preset distance, at this time, the vehicle is driven by the engine as the main power, and the optimal temperature interval of the vehicle battery when working does not need to be considered, only the temperature interval with the highest charging efficiency of the vehicle battery needs to be considered, therefore, the control system can determine the temperature interval with the highest charging efficiency of the vehicle battery when the device type is a direct current device from the above device type-temperature interval table, and take the temperature interval as a first direct current temperature interval.

[0082] Case two: if the device type of the target charging device is a direct current type, and the above device distance is close, i.e., the device distance is not greater than the first preset distance, at this time, the engine is driven by the vehicle battery as the main power, and the control system also needs to consider the output power of the battery, therefore, after the control system determines the above temperature interval with the highest charging efficiency according to the above device type-temperature interval table, the temperature interval can be adaptively improved to improve the output power of the vehicle battery, and thus the vehicle can quickly travel to the target charging device for charging, i.e., the first direct current temperature interval can be increased to obtain the above second direct current temperature interval.

[0083] Case three: if the device type of the target charging device is an AC type, and the device distance is far, i.e., the device distance is greater than the first preset distance, the control system can determine the temperature interval in which the vehicle battery charging efficiency is the highest when the device type is an AC device from the device type-temperature interval table, and take the temperature interval as the first AC temperature interval, similar to case one.

[0084] Case four: if the device type of the target charging device is an AC type, and the device distance is close, i.e., the device distance is not greater than the first preset distance, the first AC temperature interval can be increased to obtain the second AC temperature interval.

[0085] Optionally, the environmental information at least includes an environmental temperature, a road type, a device type, and a device distance, and the control of the thermal management system of the vehicle is based on the target temperature interval, the battery temperature, and the environmental information, including: obtaining a battery state of the vehicle battery; in response to the battery state being that the vehicle battery does not need to be charged, controlling the thermal management system based on the battery temperature, the environmental temperature, the road type, and the target temperature interval; and in response to the battery state being that the vehicle needs to be charged, controlling the thermal management system based on the battery temperature, the environmental temperature, the target temperature interval, the device distance, and the device type.

[0086] In an optional solution of the embodiment, in addition to the aforementioned factors that affect the temperature of the vehicle battery, such as the road type, the device type, the device distance, etc., the temperature of the vehicle battery is also affected by the battery temperature and the environmental temperature, and therefore, when controlling the thermal management system according to the target temperature interval, the control system can first obtain the environmental temperature, the road type, the device type, and the device distance, etc. in the environmental information, as well as the current battery temperature of the vehicle battery, and use these parameters to further control the thermal management system.

[0087] Since the temperature change trends of the battery when it needs to be charged and when it does not need to be charged are different, the parameters that affect the change of the battery temperature are also different, and therefore, the control system can first obtain the battery state of the vehicle battery, in the case that the battery state is that the vehicle battery does not need to be charged, the control system can control the thermal management system to operate according to the battery temperature, the environmental temperature, the road type, and the corresponding target temperature interval; and in the case that the battery state is that the vehicle battery needs to be charged, the control system can control the thermal management system to operate according to the battery temperature, the environmental temperature, the device distance, the device type, and the corresponding target temperature interval.

[0088] Regarding the thermal management system, Figure 2 is a structural schematic diagram of a thermal management system according to an embodiment of the present application, like Figure 2As shown in the figure, 201 represents a power motor, 202 represents a DC converter, 203 represents a vehicle charger, 204 represents a vehicle battery, 205 represents an engine, 206-208 represent water pumps, 209 represents a fan, 210 represents an electric heating device, 211 represents an electric cooling device, 212 and 214 represent heat exchange devices, and 213 represents a cooling medium pipeline. The temperature of the power motor is generally not more than 55℃.

[0089] Generally, the entire thermal management system can be divided into three parts: a battery circulation loop, a motor circulation loop, and an engine circulation loop.

[0090] The battery circulation loop has a vehicle battery self-circulation function and can be used to heat, cool, and the like the vehicle battery. The battery circulation loop generally comprises a vehicle battery, an electric heating device, an electric cooling device, and a water pump.

[0091] The motor circulation loop has the functions of cooling the power motor, cooling the DC converter, and cooling the vehicle charger. The motor circulation loop generally comprises a power motor, a DC converter, a vehicle charger, a water pump, a heat exchanger, and a fan.

[0092] The engine circulation loop has the function of cooling the engine. The engine circulation loop generally comprises an engine, a water pump, a heat exchanger, and a fan.

[0093] Optionally, the thermal management system is controlled based on the battery temperature, the environmental temperature, the road type, and the target temperature range, comprising: determining a first running power and a first running type based on the battery temperature, the environmental temperature, and the road type, wherein the running type is used to represent the type of controlling the thermal management system to perform a heating function or a cooling function; and controlling the motor circulation loop of the thermal management system based on the first running power and the first running type.

[0094] The running power can refer to the power of the control system controlling the thermal management system to perform cooling or heating.

[0095] In an optional solution of the embodiment, as shown above, since the components and running power of the thermal management system required to run heating or cooling are different under different environmental information and different battery temperatures, the first running power and the first running type for controlling the components of the thermal management system can be determined according to the above-mentioned parameters such as the battery temperature, the environmental temperature, and the road type, and then the first running power and the first running type are used to control the motor circulation loop of the thermal management system to achieve heating or cooling of the power motor.

[0096] Specifically, the running state of the vehicle battery and the corresponding power motor in the next period of time can be determined according to the road type, and the first running type is determined according to the running state. Then, the first running power is determined according to the first running type and other parameters.

[0097] For example, if the vehicle battery does not need to be charged at present, the current environment temperature is lower than -10℃, the battery power is higher than 30%, the battery temperature is lower than -5℃, the power motor temperature is lower than -5℃, the road type is the high-speed type, and the target temperature interval is [24, 48]. Considering that the road type is the high-speed type, the vehicle battery and the corresponding power motor need to run at the maximum power at present, and the corresponding battery temperature and power motor temperature will continue to rise rapidly. Therefore, the first running type can be determined as the cooling type. Therefore, the control system needs to further detect the change trend of the battery temperature and the power motor temperature. When the battery temperature or the power motor temperature reaches a certain temperature threshold, the control system controls the thermal management system to cool the vehicle battery and the power motor at a moderate first running power. For example, when the battery temperature reaches 20℃, the electric cooling device is controlled to run at a moderate power to cool the vehicle battery.

[0098] If the vehicle battery does not need to be charged at present, the current environment temperature is higher than 30℃, the battery power is higher than 30%, the battery temperature is higher than 35℃, the power motor temperature is higher than 55℃, the road type is the high-speed type, and the target temperature interval is [24, 48]. As mentioned above, the vehicle battery and the corresponding power motor need to run at the maximum power at present, and the corresponding battery temperature and power motor temperature will continue to rise rapidly. Therefore, the first running type can be determined as the cooling type. Since the current battery temperature and the environment temperature are both high, the control system needs to control the thermal management system to cool the vehicle battery and the power motor at a large first running power. For example, the electric cooling device, the fan, the water pump and other components in the battery circulation loop can be used to cool the vehicle battery and the power motor at the maximum power.

[0099] If the vehicle battery currently does not need to be charged, the current environment temperature is lower than -10℃, the battery power is higher than 30%, the power motor temperature is lower than -5℃, the road type is the congestion type, and the target temperature interval is [16, 32]. Considering that the road type is the congestion type, the output power of the vehicle battery is low at this time, the power efficiency of the power motor is low, the heat generation power of the vehicle battery and the power motor is large, and the temperature of the vehicle battery and the power motor will continue to rise. It can be determined that the first running type described above is the cooling type. In order to avoid the vehicle battery and the power motor from overheating, the control system also needs to further detect the change trend of the battery temperature and the power motor temperature, and when the battery temperature or the power motor temperature reaches a certain temperature threshold, the control system controls the thermal management system to cool the vehicle battery and the power motor in advance with moderate first running power. For example, when the battery temperature reaches 20℃, the electric cooling device is controlled to operate at medium power to cool the vehicle battery.

[0100] If the vehicle battery currently does not need to be charged, the current environment temperature is higher than 30℃, the battery power is higher than 30%, the battery temperature is higher than 35℃, the power motor temperature is higher than 55℃, and the road type is the congestion type. As described above, considering that the road type is the congestion type, the temperature of the vehicle battery and the power motor will continue to rise, and it can be determined that the first running type described above is the cooling type. Moreover, since the current environment temperature, the vehicle battery temperature and the power motor temperature are all high, the control system needs to control the thermal management system to cool the vehicle battery and the power motor with large first running power. For example, the electric cooling device, the fan, the water pump and other components in the battery circulation loop can be used to cool the vehicle battery and the power motor at maximum power.

[0101] Optionally, the thermal management system is controlled based on the battery temperature, the environment temperature, the target temperature interval, the device distance and the device type, including: determining the second running power and the second running type based on the battery temperature, the environment temperature, the device distance and the device type; and controlling other circulation loops of the thermal management system based on the second running power and the second running type, wherein the other circulation loops are used to represent the circulation loops in the thermal management system except the motor circulation loop.

[0102] In the case that the vehicle battery needs to be charged, as shown above, since the current battery temperature of the vehicle battery, the ambient temperature, the device type of the target charging device, and the device distance, and the like parameters will all have an impact on the temperature of the vehicle battery when working or charging, the thermal management system needs to correspondingly operate the heating, cooling components and operating power, therefore, first, the second operating power and the second operating type for controlling the thermal management system components can be determined according to the above-mentioned battery temperature, ambient temperature, device distance, device type, and the like parameters, and then the second operating power and the second operating type are used to control other circulating loops in the thermal management system except the motor circulating loop, such as the aforementioned battery circulating loop, engine circulating loop, and the like, to realize the operation of cooling or heating the vehicle battery, and ensure that the battery temperature can be stabilized in the target temperature range.

[0103] Specifically, first, the second operating type, i.e., whether the thermal management system needs to cool or heat the vehicle battery, can be determined according to the battery temperature and the ambient temperature and the like information, and then the second operating power, i.e., the specific component that needs to be cooled or heated and the power of the component when operating, can be determined according to the second operating type and other parameters.

[0104] For example, if the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is lower than -5℃, the ambient temperature is lower than -10℃, the target charging device is a direct current charging device, and the device distance is close, within 10km, the corresponding second direct current temperature range is [30, 40]. Considering that the battery temperature and the ambient temperature are low, the control system can determine that the thermal management system needs to heat the vehicle battery at this time, so that the battery temperature of the vehicle battery can be in the second direct current temperature range when charging, thereby improving the charging efficiency of the vehicle battery, therefore, the second operating type can be determined as the heating type. Since the device distance is close, the vehicle battery can be charged in a short time, therefore, the vehicle can be driven by the vehicle battery as the main power at this time, and the control system needs to ensure that the vehicle temperature is raised to the second direct current temperature range in a short time, at this time, the control system can control the thermal management system to heat the vehicle battery in advance with a larger second operating power, for example, using the electric heating device in the battery circulating loop to heat the vehicle battery with the maximum operating power.

[0105] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is lower than -5°C, the ambient temperature is lower than -10°C, the target charging device is a direct current charging device, and the device distance is far, i.e. more than 10km, the corresponding first direct current temperature interval is [25, 35]. As shown in the foregoing, considering that the battery temperature and the ambient temperature are relatively low, it can be determined that the second running type described above is a heating type. Since the device distance is far, the vehicle battery cannot be charged in a short time, at this time the vehicle can be driven with the engine as the main power, and the control system can slowly increase the battery temperature to be within the first temperature interval, i.e. the control system can control the thermal management system to preheat the vehicle battery with a small second running power, for example, control the engine cooling medium to heat the vehicle battery with a medium running power.

[0106] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is lower than -5°C, the ambient temperature is lower than -10°C, the target charging device is an alternating current charging device, and the device distance is close, i.e. less than 10km, the corresponding second alternating current temperature interval is [25, 35]. As shown in the foregoing, considering that the battery temperature and the ambient temperature are relatively low, it can be determined that the second running type described above is a heating type. Since the device distance is close and the device type is an alternating current charging device, at this time the vehicle can be driven with the vehicle battery as the main power, therefore, in order to avoid the battery power of the vehicle battery being further reduced due to heating of the vehicle battery, resulting in a large amount of cost being consumed when the vehicle battery is charged by the alternating current charging device, it can be selected not to heat, or the thermal management system is controlled to preheat the vehicle battery with a small second running power, for example, the vehicle battery is heated with a minimum power by using an electric heating device.

[0107] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is lower than -5°C, the ambient temperature is lower than -10°C, the target charging device is an alternating current charging device, and the device distance is far, i.e. more than 10km, the corresponding first alternating current temperature interval is [20, 30]. As shown in the foregoing, considering that the battery temperature and the ambient temperature are relatively low, it can be determined that the second running type described above is a heating type. Since the device distance is far and the device type is an alternating current charging device, at this time the vehicle can be driven with the engine as the main power, and the control system can slowly increase the battery temperature to be within the first alternating current temperature interval, i.e. the control system can control the thermal management system to preheat the vehicle battery with a small second running power, for example, the vehicle battery is heated with a medium running power by controlling the engine cooling medium.

[0108] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is higher than 30℃, the ambient temperature is higher than 30℃, the target charging device is a direct current charging device, and the device distance is close, within 10km, the corresponding second direct current temperature interval is [30, 40]. Considering that the battery temperature and the ambient temperature are high, the control system can determine that the thermal management system needs to be controlled to cool the vehicle battery at this time, so that the battery temperature of the vehicle battery can be in the second direct current temperature interval when charging, thereby improving the efficiency of charging the vehicle battery, therefore, it can be determined that the above-mentioned second operation type is a cooling type. And because the device distance is close, the vehicle battery can be charged in a short time, so at this time the vehicle can drive with the vehicle battery as the main power, and the temperature of the vehicle battery will continue to rise, and the control system needs to ensure that the vehicle temperature is stable in the above-mentioned second direct current temperature interval in a short time, at this time the control system can control the thermal management system to cool the vehicle battery in advance with a larger second operation power, for example, using the electric cooling device in the battery circulation loop to cool the vehicle battery with the maximum operation power.

[0109] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is higher than 30℃, the ambient temperature is higher than 30℃, the target charging device is a direct current charging device, and the device distance is far away, outside 10km, the corresponding second direct current temperature interval is [25, 35]. As mentioned above, considering that the battery temperature and the ambient temperature are high, it can be determined that the above-mentioned second operation type is a cooling type. Because the device distance is far away, the vehicle battery cannot be charged in a short time, so at this time the vehicle can drive with the engine as the main power, and the control system can slowly cool the battery temperature of the vehicle battery, that is, the control system can control the thermal management system to cool the vehicle battery in advance with a smaller second operation power, for example, controlling the engine cooling medium to cool the vehicle battery with a medium operation power, or using the electric cooling device to cool the vehicle battery with a small power, etc.

[0110] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is higher than 30℃, the ambient temperature is higher than 30℃, the target charging device is an alternating current charging device, and the device distance is close, within 10km, the corresponding second alternating current temperature interval is [25, 35]. As described above, considering that the battery temperature and the ambient temperature are relatively high, it can be determined that the second operation type described above is a cooling type. However, since the device distance is close and the device type is an alternating current charging device, the vehicle can be driven by the vehicle battery as the main power at this time, so as to avoid the battery power of the vehicle battery being further reduced due to heating of the vehicle battery, resulting in that a large amount of fees will be consumed when the vehicle battery is charged by the alternating current charging device. Therefore, no cooling or cooling of the vehicle battery by the thermal management system in advance can be selected, for example, cooling of the vehicle battery by the electric cooling device at a minimum power.

[0111] If the vehicle battery currently needs to be charged, the battery power is less than 30%, the current battery temperature is higher than 30℃, the ambient temperature is higher than 30℃, the target charging device is an alternating current charging device, and the device distance is far, outside 10km, the corresponding second alternating current temperature interval is [20, 30]. As described above, considering that the battery temperature and the ambient temperature are relatively high, it can be determined that the second operation type described above is a cooling type. Since the device distance is far and the device type is an alternating current charging device, the vehicle can be driven by the engine as the main power at this time, and the control system can slowly reduce the battery temperature to keep it within the first alternating current temperature interval, that is, the control system can control the thermal management system to cool the vehicle battery in advance at a small second operation power, for example, the engine cooling medium is controlled to cool the vehicle battery at a medium operation power. Alternatively, since the vehicle battery is not working, the battery temperature will not continue to rise, so the thermal management system can also not be controlled to cool the vehicle battery to reduce the power loss and thus reduce the fees consumed during charging.

[0112] Optionally, the environmental information at least includes the device distance, and the method further comprises: obtaining the battery state of the vehicle battery and the device distance; in response to the battery state being that the vehicle battery does not need to be charged, determining that the driving state is a hybrid driving state; in response to the battery state being that the vehicle battery needs to be charged and the device distance being greater than a second distance threshold, determining that the driving state is an engine driving state; and in response to the battery state being that the vehicle battery needs to be charged and the device distance being not greater than the second distance threshold, determining that the driving state is a pure electric driving state.

[0113] In an optional scheme of the embodiment, in order to improve the operation efficiency of the powertrain of the vehicle, the driving state of the vehicle under different conditions can also be determined according to the environmental information and the battery information.

[0114] Specifically, if the current battery state of the vehicle battery is that the vehicle does not need to be charged, it can be determined that the current driving state of the vehicle is a hybrid driving state, i.e., the power motor and the engine can be used simultaneously to provide driving power for the vehicle; if the battery state of the vehicle battery is that the vehicle needs to be charged, the driving state can be further determined according to the device distance.

[0115] In the case where the device distance is greater than the second distance threshold, it indicates that driving the power motor with the current power cannot enable the vehicle to travel to the target charging device, at this time, it can be determined that the current driving state of the vehicle is an engine driving state, i.e., the engine is used as the main power to drive the vehicle to travel; in the case where the device distance is not greater than the second distance threshold, it indicates that driving the power motor with the current power can enable the vehicle to travel to the target charging device, at this time, it can be determined that the current driving state of the vehicle is a pure electric driving state, i.e., the power motor is used as the main power to drive the vehicle to travel.

[0116] In an optional solution of the embodiment, in order to avoid damaging the vehicle battery, the second distance threshold can be determined by the maximum output power corresponding to the current state of charge of the vehicle battery, in combination with the minimum output power of the engine. That is, according to the maximum output power corresponding to the state of charge and the minimum output power of the engine, the maximum distance that the vehicle can travel without damaging the vehicle battery when the vehicle is driven by the vehicle battery as the main power is determined, and the maximum distance is determined as the second distance threshold.

[0117] Embodiment 2

[0118] According to another aspect of the embodiment of the application, corresponding to the control method of the vehicle thermal management system, the specification also provides a control device of the vehicle thermal management system, please refer to Figure 3 , Figure 3 is a structural block diagram of a control device of a vehicle thermal management system according to an embodiment of the application, the device comprises: an acquisition module 302, configured to acquire battery information and environment information of the vehicle, wherein the battery information comprises a state of charge and a battery temperature, and the environment information is used to represent information of an environment through which the vehicle travels from a current position to a target position; a determination module 304, configured to determine a target temperature interval of the vehicle battery based on the state of charge and the environment information, wherein a charging or discharging capability of the vehicle battery at each temperature in the target temperature interval is higher than a charging or discharging capability of the vehicle battery at other temperatures; and a control module 306, configured to control a thermal management system of the vehicle based on the target temperature interval, the battery temperature and the environment information.

[0119] Optionally, the environment information at least includes a target driving distance, the target driving distance is used to represent a distance from the current position to the target position, the determining module 304 includes: a first determining unit, configured to determine a battery state of the vehicle battery based on the state of charge and the distance, wherein the battery state is used to represent whether the vehicle battery needs to be charged; and a second determining unit, configured to determine the target temperature range based on the battery state and the environment information.

[0120] Optionally, the first determining unit is further configured to: in response to the state of charge being normal, determine that the battery state is that the vehicle battery does not need to be charged; in response to the state of charge being abnormal and the target driving distance being greater than a first distance threshold, determine that the battery state is that the vehicle battery needs to be charged; and in response to the state of charge being abnormal and the target driving distance being not greater than the first distance threshold, determine that the battery state is that the vehicle battery does not need to be charged.

[0121] Optionally, the environment information further includes a road type, a device type and a device distance, the road type is used to represent a type of a driving road of the vehicle at present, the device type is used to represent a type of a target charging device passed by the vehicle during a process of driving from the current position to the target position, and the device distance is used to represent a distance from the current position to a position where the target charging device is located, and the second determining unit is further configured to: in response to the battery state being that the vehicle battery does not need to be charged, determine the target temperature range based on the road type; and in response to the battery state being that the vehicle battery needs to be charged, determine the target temperature range based on the device type and the device distance.

[0122] Optionally, the environment information at least includes an environment temperature, a road type, a device type and a device distance, and the control module 306 includes: a state obtaining unit, configured to obtain a battery state of the vehicle battery; a first control unit, configured to, in response to the battery state being that the vehicle battery does not need to be charged, control the thermal management system based on the battery temperature, the environment temperature, the road type and the target temperature range; and a second control unit, configured to, in response to the battery state being that the vehicle needs to be charged, control the thermal management system based on the battery temperature, the environment temperature, the target temperature range, the device distance and the device type.

[0123] Optionally, the first control unit is further configured to: determine a first running power and a first running type based on the battery temperature, the environment temperature and the road type, wherein the running type is used to represent a type of the thermal management system performing a heating function or a cooling function; and control a motor circulation loop of the thermal management system based on the first running power and the first running type.

[0124] Optionally, the second control unit is further configured to determine the second operation power and the second operation type based on the battery temperature, the ambient temperature, the device distance, and the device type; and control other circulation loops of the thermal management system based on the second operation power control and the second operation type, wherein the other circulation loops are used to represent circulation loops other than the motor circulation loop in the thermal management system.

[0125] Optionally, the environmental information at least includes the device distance, and the apparatus further includes: a parameter acquisition module configured to acquire the battery state of the vehicle battery and the device distance; a first driving state determination module configured to determine the driving state as the hybrid driving state in response to the battery state being that the vehicle battery does not need to be charged; a second driving state determination module configured to determine the driving state as the engine driving state in response to the battery state being that the vehicle battery needs to be charged and the device distance being greater than a second distance threshold; and a third driving state determination module configured to determine the driving state as the pure electric driving state in response to the battery state being that the vehicle battery needs to be charged and the device distance being not greater than the second distance threshold.

[0126] Embodiment 3

[0127] According to another aspect of the embodiments of the present application, a computer readable storage medium is also provided, including a stored program, wherein the program, when executed, controls the device where the computer readable storage medium is located to perform the control method of the vehicle thermal management system according to any one of the above.

[0128] Embodiment 4

[0129] According to another aspect of the embodiments of the present application, a processor is also provided, wherein the program of the processor, when executed, performs the control method of the vehicle thermal management system according to any one of the above.

[0130] Embodiment 5

[0131] According to another aspect of the embodiments of the present application, a target vehicle is also provided, including: one or more processors; a storage device configured to store one or more programs; and when the one or more programs are executed by the one or more processors, the one or more processors perform the control method of the vehicle thermal management system according to any one of the above.

[0132] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0133] In the above-mentioned embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0134] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other manners. For example, the described unit embodiments can be divided into other ways, for example, the division of units can be a logical function division, and there can be another division manner in actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or communication connection between units can be indirect coupling or communication connection through some interfaces, and can be electrical or other forms.

[0135] The units described as separate components may or can not be physically separate, and the components shown as units may or can not be physical units, i.e., they can be located in one place or distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0136] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can be physically present alone, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0137] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0138] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A control method of a vehicle thermal management system, characterized by, The method comprises: obtaining battery information and environment information of a vehicle, wherein the battery information comprises a state of charge and a battery temperature, and the environment information is used to represent information of an environment through which the vehicle travels from a current position to a target position, and at least comprises an environment temperature, a road type, a device type, and a device distance, the road type is used to represent a type of a current travel road of the vehicle, the device type is used to represent a type of a target charging device through which the vehicle travels from the current position to the target position, and the device distance is used to represent a distance from the current position to a position of the target charging device; determining a target temperature range of a vehicle battery based on the state of charge and the environment information, wherein a charging or discharging capability of the vehicle battery at each temperature in the target temperature range is higher than a charging or discharging capability of the vehicle battery at other temperatures; controlling a thermal management system of the vehicle based on the target temperature range, the battery temperature, and the environment information; wherein controlling the thermal management system of the vehicle based on the target temperature range, the battery temperature, and the environment information comprises: obtaining a battery state of the vehicle battery; in response to the battery state being that the vehicle battery does not need to be charged, controlling the thermal management system based on the battery temperature, the environment temperature, the road type, and the target temperature range; and in response to the battery state being that the vehicle needs to be charged, controlling the thermal management system based on the battery temperature, the environment temperature, the target temperature range, the device distance, and the device type.

2. The method of claim 1, wherein, The environment information at least comprises a target travel distance, the target travel distance is used to represent a distance from the current position to the target position, determining a target temperature range of a vehicle battery based on the state of charge and the environment information comprises: determining a battery state of the vehicle battery based on the state of charge and the target travel distance, wherein the battery state is used to represent whether the vehicle battery needs to be charged; determining the target temperature range based on the battery state and the environment information.

3. The method of claim 2, wherein, Determining a battery state of the vehicle battery based on the state of charge and the target travel distance comprises: in response to the state of charge being normal, determining that the battery state is that the vehicle battery does not need to be charged; in response to the state of charge being abnormal and the target travel distance being greater than a first distance threshold, determining that the battery state is that the vehicle battery needs to be charged; in response to the state of charge being abnormal and the target travel distance being not greater than the first distance threshold, determining that the battery state is that the vehicle battery does not need to be charged.

4. The method of claim 2, wherein, Determining the target temperature range based on the battery state and the environment information comprises: in response to the battery state being that the vehicle battery does not need to be charged, determining the target temperature range based on the road type; in response to the battery state being that the vehicle battery needs to be charged, determining the target temperature range based on the device type and the device distance.

5. The method of claim 1, wherein, controlling the thermal management system based on the battery temperature, the ambient temperature, the road type, and the target temperature interval, including: determining a first operation power and a first operation type based on the battery temperature, the ambient temperature, and the road type, wherein the operation type is used to represent a type of controlling the thermal management system to perform a heating function or a cooling function; controlling a motor circulation loop of the thermal management system based on the first operation power and the first operation type.

6. The method of claim 5, wherein, controlling the thermal management system based on the battery temperature, the ambient temperature, the target temperature interval, the device distance, and the device type, including: determining a second operation power and a second operation type based on the battery temperature, the ambient temperature, the device distance, and the device type; controlling other circulation loops of the thermal management system based on the second operation power control and the second operation type, wherein the other circulation loops are used to represent circulation loops other than the motor circulation loop in the thermal management system.

7. The method of claim 1, wherein, The method further includes: obtaining a battery state of the vehicle battery, and a device distance; in response to the battery state being that the vehicle battery does not need to be charged, determining that the driving state is a hybrid driving state; in response to the battery state being that the vehicle battery needs to be charged, and the device distance being greater than a second distance threshold, determining that the driving state is an engine driving state; in response to the battery state being that the vehicle battery needs to be charged, and the device distance being not greater than the second distance threshold, determining that the driving state is a pure electric driving state.

8. A control device of a vehicle thermal management system, characterized by, The apparatus includes: an obtaining module, configured to obtain battery information of a vehicle and environment information, wherein the battery information includes a state of charge and a battery temperature, and the environment information is used to represent information of an environment through which the vehicle travels from a current location to a target location, and the environment information at least includes an ambient temperature, a road type, a device type, and a device distance, the road type is used to represent a type of a current driving road of the vehicle, the device type is used to represent a type of a target charging device through which the vehicle travels from the current location to the target location, and the device distance is used to represent a distance from the current location to a location of the target charging device; a determining module, configured to determine a target temperature interval of a vehicle battery based on the state of charge and the environment information, wherein a charging or discharging capability of the vehicle battery at each temperature in the target temperature interval is higher than a charging or discharging capability of the vehicle battery at other temperatures; a control module, configured to control a thermal management system of the vehicle based on the target temperature interval, the battery temperature, and the environment information. The control module is further configured to perform the following steps: obtaining a battery state of the vehicle battery; in response to the battery state being that the vehicle battery does not need to be charged, controlling the thermal management system based on the battery temperature, the ambient temperature, the road type, and the target temperature range; and in response to the battery state being that the vehicle needs to be charged, controlling the thermal management system based on the battery temperature, the ambient temperature, the target temperature range, the device distance, and the device type.

9. A vehicle comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the thermal management system control method of any one of claims 1-7.

Images