Vehicle thermal management energy arbitration control method and system, storage medium and vehicle

Abstract

The invention provides a vehicle thermal management energy arbitration control method and system, a storage medium and a vehicle. The method comprises the following steps: acquiring the current state of each thermal management subsystem of a vehicle; determining the priority of each thermal management subsystem based on the current state of each thermal management subsystem; acquiring a current whole vehicle scene; when the current whole vehicle scene enters the preset scene, scene compensation is carried out on the priority of the corresponding heat management subsystem so as to adjust the priority; when the heat management requests of the plurality of heat management subsystems conflict, performing priority arbitration on the priority of each heat management subsystem; and controlling execution of parts of the corresponding thermal management subsystem based on the arbitration result. According to the invention, energy control of each thermal management subsystem can be ensured more accurately.

Description

Technical Field

[0001] The present application relates to the field of vehicle thermal management technology, and in particular to a vehicle thermal management energy arbitration control method, system, storage medium and vehicle. Background Art

[0002] With the development of the new energy industry and the improvement of environmental awareness, the market share of new energy electric vehicles has increased year by year, and the market has higher requirements for the performance of electric vehicles. The three-electric performance and driving range are increasingly becoming the main direction of competition. As an important means to ensure performance and achieve driving range, the intelligent control method of vehicle thermal management is an important development direction.

[0003] When performing thermal management on the entire vehicle, when multiple thermal management subsystems have thermal management requests, due to differences in performance requirements and urgency, the current thermal management control method does not comprehensively consider the actual status of the vehicle and the customer's vehicle usage scenarios, and cannot accurately and efficiently prioritize the most important performance, resulting in poor air conditioning comfort, short battery life, vehicle three-electric over-temperature protection and other problems, affecting customer experience. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a vehicle thermal management energy arbitration control method, system, storage medium and vehicle, which can more accurately ensure the energy control of each thermal management subsystem.

[0005] One aspect of an embodiment of the present application provides a vehicle thermal management energy arbitration control method. The method includes: obtaining the current state of each thermal management subsystem of the vehicle; determining the priority of each thermal management subsystem based on the current state of each thermal management subsystem; obtaining the current vehicle scene; when the current vehicle scene enters a predetermined scene, performing scene compensation on the priority of the corresponding thermal management subsystem to adjust the priority; when there is a conflict in thermal management requests of multiple thermal management subsystems, performing priority arbitration on the priority of each thermal management subsystem; and controlling the execution of components of the corresponding thermal management subsystem based on the arbitration result.

[0006] Furthermore, the thermal management subsystems include batteries, electric drives and passenger cabins, and the priority arbitration of the priorities of the thermal management subsystems includes: determining whether the numerical values ​​of the priorities of the thermal management subsystems are equal; when the numerical values ​​of the priorities of the thermal management subsystems are not equal, priority arbitration is performed according to the magnitude of the numerical values; when the numerical values ​​of the priorities of the thermal management subsystems are equal, priority arbitration is performed according to the principle that the priority of the passenger cabin is greater than the priority of the electric drive, and the priority of the electric drive is greater than the priority of the battery.

[0007] Furthermore, before the priority arbitration is performed on the priorities of each thermal management subsystem, the method also includes: determining whether the numerical values ​​of the priorities of all thermal management subsystems are less than or equal to 2; when the priority values ​​of all thermal management subsystems are less than or equal to 2, priority arbitration is performed according to the principle of energy consumption priority; when the numerical values ​​of the priorities of all thermal management subsystems are not less than or equal to 2, the step of determining whether the numerical values ​​of the priorities of each thermal management subsystem are equal is performed.

[0008] Furthermore, the method also includes: pre-dividing the priority of the electric drive into multiple levels based on the electric drive water outlet temperature and the vehicle speed, wherein the larger the value of the level, the higher the priority, and the predetermined scene includes a competition mode scene, wherein when the whole vehicle enters the competition mode scene, the priority of the electric drive is subjected to scene compensation, including: when the whole vehicle enters the competition mode scene, the priority of the electric drive is increased by a predetermined value on the basis of the original level.

[0009] Further, the method further includes: pre-dividing the priority of the passenger cabin into multiple levels based on the air-conditioning mode, wherein the larger the value of the level is, the higher the priority is, and the predetermined scenes include a rapid cooling scene, a rapid heating scene, and a fogging risk scene, wherein when the whole vehicle enters the rapid cooling scene, the rapid heating scene, and the fogging risk scene respectively, scene compensation is performed on the priority of the passenger cabin, including: when the whole vehicle enters the rapid cooling scene and the rapid heating scene, the priority of the passenger cabin is increased by a first predetermined value on the basis of the original level;

[0010] When the entire vehicle enters the fogging risk scene, the priority of the passenger cabin is increased by a second predetermined value on the basis of the original level, wherein the second predetermined value is greater than the first predetermined value.

[0011] Furthermore, the method also includes: pre-dividing the priorities of batteries in different states into multiple levels according to the states of the batteries, wherein the larger the numerical value of the level, the higher the priority, and the states of the batteries include the states of battery cooling during driving discharge, battery cooling during AC slow charging, battery cooling during DC fast charging, battery heating during driving discharge, battery heating during AC slow charging, and battery heating during DC fast charging, and the priorities of batteries in different states are divided into multiple levels, including: when the battery is in the state of battery cooling during driving discharge, pre-dividing the priorities of the batteries into multiple levels based on the maximum temperature of the battery cells; when the battery is in the state of battery cooling during driving discharge, In the cooling state, the battery priority is divided into multiple levels in advance based on the maximum temperature of the battery cells; when the battery is in the DC fast charging battery cooling state, the battery priority is divided into multiple levels in advance based on the charging power and the maximum temperature of the battery cells; when the battery is in the driving discharge battery heating state, the battery priority is divided into multiple levels in advance based on the minimum temperature of the battery cells; when the battery is in the AC slow charging battery heating state, the battery priority is divided into multiple levels in advance based on the minimum temperature of the battery cells; when the battery is in the DC fast charging battery heating state, the battery priority is divided into multiple levels in advance based on the minimum temperature of the battery cells.

[0012] Furthermore, the predetermined scenarios include short-distance power usage scenarios, long-distance vehicle usage scenarios, scheduled fast charging scenarios, low-power charging pile-seeking scenarios, and high-power charging scenarios, wherein when the entire vehicle enters the short-distance power usage scenarios, the long-distance vehicle usage scenarios, the scheduled fast charging scenarios, the low-power charging pile-seeking scenarios, and the high-power charging scenarios, respectively, scenario compensation is performed on the priority of the battery in the corresponding state, wherein when the entire vehicle enters the short-distance power usage scenarios, the long-distance vehicle usage scenarios, the scheduled fast charging scenarios, the low-power charging pile-seeking scenarios, and the high-power charging scenarios, respectively, scenario compensation is performed on the priority of the battery in the corresponding state, including: when the battery is in a state of driving discharge and battery cooling, when the entire vehicle enters the short-distance power usage scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level and is not less than 1; when the entire vehicle enters the scheduled fast charging scenario, the priority of the battery is switched to direct charging; The priority corresponding to the state of DC fast charging battery cooling; when the whole vehicle enters the low-power pile-seeking scene, the priority of the battery in the said state is reduced by a predetermined value on the basis of the original level; when the battery is in the state of DC fast charging battery cooling, when the charging power does not exceed the predetermined power threshold, and the whole vehicle enters the high-power charging scene, the priority of the battery in the said state is reduced by a predetermined value on the basis of the original level and is not less than 2; when the battery is in the state of driving discharge battery heating, when the whole vehicle enters the short-distance power use scene, the priority of the battery in the said state is reduced by a predetermined value on the basis of the original level and is not less than 1; when the whole vehicle enters the long-distance vehicle use scene, the priority of the battery in the said state is increased by a predetermined value on the basis of the original level and is not higher than 5; when the whole vehicle enters the scheduled fast charging scene, the priority of the battery is switched to the corresponding priority under the state of DC fast charging battery heating.

[0013] Another aspect of an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the vehicle thermal management energy arbitration control method as described above.

[0014] Another aspect of an embodiment of the present application provides a vehicle thermal management energy arbitration control system, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the vehicle thermal management energy arbitration control method as described above when executing the computer program.

[0015] Another aspect of the embodiments of the present application provides a vehicle, wherein the vehicle includes the vehicle thermal management energy arbitration control system as described above.

[0016] The vehicle thermal management energy arbitration control method, system, and storage medium of one or more embodiments of the present application add a whole vehicle scenario, and perform scenario compensation for the priority of the corresponding thermal management subsystem according to the whole vehicle scenario. When the thermal management requests of multiple thermal management subsystems conflict, priority arbitration is performed on the priority of each thermal management subsystem, and the corresponding components of the corresponding thermal management subsystem are controlled to perform corresponding operations according to the arbitration results, so as to better complete reasonable energy control according to the actual state of the vehicle, so that the vehicle can more accurately ensure the energy control of each thermal management subsystem, improve energy utilization efficiency, and increase the vehicle's cruising range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a flow chart of a vehicle thermal management energy arbitration control method according to an embodiment of the present application.

[0018] Figure 2 This is a schematic diagram of performing priority arbitration on the priorities of various thermal management subsystems according to an embodiment of the present application.

[0019] Figure 3 This is a specific flow chart of the vehicle thermal management energy arbitration control method of the present application.

[0020] Figure 4 A schematic diagram of the structure of a heat pump system.

[0021] Figure 5 A schematic block diagram of a vehicle thermal management energy arbitration control system according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0023] The vehicle thermal management energy arbitration control method, system, storage medium and vehicle of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0024] The present application provides a vehicle thermal management energy arbitration control method. Figure 1 A flow chart of a vehicle thermal management energy arbitration control method according to an embodiment of the present application is disclosed. Figure 1 As shown, a vehicle thermal management energy arbitration control method according to an embodiment of the present application may include steps S1 to S8.

[0025] In step S1, the current status of each thermal management subsystem of the vehicle is obtained.

[0026] In step S2, the priority of each thermal management subsystem may be determined based on the current status of each thermal management subsystem acquired in step S1.

[0027] In step S3, the current vehicle scene is obtained.

[0028] In step S4, it is determined whether the current vehicle scene has entered the predetermined scene. If the result of the determination is "yes", the process proceeds to step S5. Otherwise, the process directly proceeds to step S6.

[0029] In step S5, when the current vehicle scene enters the predetermined scene, the priority of the corresponding thermal management subsystem can be scene compensated, so as to adjust the priority accordingly. After the priority of the corresponding thermal management subsystem is scene compensated, the process enters step S6.

[0030] In step S6, it is determined whether there is a conflict between the thermal management requests (cooling or heating requests) of multiple thermal management subsystems. If the result of the determination is "yes", the process proceeds to step S7.

[0031] In step S7 , when a conflict occurs in thermal management requests from multiple thermal management subsystems, priority arbitration may be performed on the priorities of the thermal management subsystems.

[0032] In an optional embodiment, the thermal management subsystems include batteries, electric drives, and passenger compartment. Figure 2 A schematic diagram of performing priority arbitration on the priorities of various thermal management subsystems according to an embodiment of the present application is disclosed. Figure 2 As shown, in some embodiments, the priority arbitration of each thermal management subsystem in step S7 may further include steps S71 to S73.

[0033] In step S71, the numerical values ​​of the priorities of the various thermal management subsystems are compared to determine whether the numerical values ​​of the priorities of the various thermal management subsystems are equal.

[0034] When the result of the judgment in step S71 is that the values ​​of the priorities of the various thermal management subsystems are not equal, the process proceeds to step S72. In step S72, priority arbitration can be performed according to the magnitude of the values. The larger the value, the higher the priority.

[0035] When the result of the judgment in step S71 is that the priority values ​​of the thermal management subsystems are equal, the process proceeds to step S73. In step S73, priority arbitration can be performed according to the principle that the priority of the cabin is higher than the priority of the electric drive, and the priority of the electric drive is higher than the priority of the battery.

[0036] In some embodiments, the priority arbitration of each thermal management subsystem in step S7 may further include steps S74 and S75.

[0037] In step S74 , it is determined whether the priority values ​​of all thermal management subsystems are less than or equal to 2.

[0038] When the result of the judgment in step S74 is "yes", the process proceeds to step S75. In step S75, when the numerical values ​​of the priorities of all thermal management subsystems are less than or equal to 2, it means that the priorities of each thermal management subsystem are not very high, and the thermal management needs of each thermal management subsystem are not very urgent. Therefore, priority arbitration can be performed according to the principle of energy consumption priority at this time. When the result of the judgment in step S74 is "no", the process proceeds to step S71. That is to say, when the numerical values ​​of the priorities of all thermal management subsystems are not less than or equal to 2, the process proceeds to step S71 to determine whether the numerical values ​​of the priorities of each thermal management subsystem are equal.

[0039] In step S8, the components corresponding to the corresponding thermal management subsystem may be controlled to perform corresponding operations based on the arbitration result of step S7 to achieve corresponding control requirements.

[0040] In some embodiments, the vehicle thermal management energy arbitration control method of the present application may further include step S9. When the result of the judgment in step S6 is "no", the process proceeds to step S9.

[0041] In step S9, when the thermal management requests of multiple thermal management subsystems do not conflict, for example, when only a single thermal management subsystem has cooling or heating requirements, no arbitration is required, and the performance can be controlled according to the requirements of the thermal management subsystem.

[0042] The following will describe in detail how the present application prioritizes each thermal management subsystem and performs corresponding scenario compensation.

[0043] The following table 1 gives the priority judgment of electric drive and the compensation method of vehicle scenario:

[0044] Table 1

[0045]

[0046] The priority of the electric drive can be divided into multiple levels in advance based on the electric drive water outlet temperature and the vehicle speed, such as different levels 0 to 4 as shown in Table 1, wherein the larger the value of the level, the higher the priority.

[0047] The predetermined scene referred to in step S4 may include a competitive mode scene. When a signal indicating that the vehicle enters a competitive mode scene is received, the priority of the electric drive may be scene compensated. For example, in some sports car models, a competitive mode button is configured. When a signal indicating that the competitive mode button is pressed is received, it may be determined that the vehicle enters a competitive mode scene.

[0048] In some embodiments, when receiving a signal that the vehicle enters the competition mode, the priority of the electric drive can be increased by a predetermined value based on the original level. For example, the priority of the electric drive shown in Table 1 can be increased by 1 based on the original level.

[0049] Table 2 below gives the cabin priority judgment and vehicle scene compensation method:

[0050] Table 2

[0051] Air conditioning mode Cabin Priority I Scene Compensation Cabin Priority II Downtime 0 / 0 ventilation 0 / 0 Refrigeration 2 Rapid refrigeration 3 Heating 2 Rapid heating 3 Heating and dehumidification 2 Fogging risk 4

[0052] The cabin priority can be divided into multiple levels based on the air conditioning mode in advance, such as different levels of 0 to 2 as shown in Table 2, where the larger the value of the level, the higher the priority. For the shutdown and ventilation modes, the cabin priority is 0. For the cooling, heating and heating and dehumidification modes without the risk of fogging, the cabin priority is 2.

[0053] The predetermined scenes referred to in step S4 may include a rapid cooling scene, a rapid heating scene, and a fogging risk scene. When receiving that the vehicle enters the rapid cooling scene, the rapid heating scene, and the fogging risk scene, scene compensation may be performed on the priority of the cabin.

[0054] In some embodiments, when the vehicle enters a rapid cooling scenario and a rapid heating scenario, the priority of the cabin can be increased by a first predetermined value on the basis of the original level; when the vehicle enters a fogging risk scenario, the priority of the cabin can be increased by a second predetermined value on the basis of the original level, wherein the second predetermined value is greater than the first predetermined value. For example, as shown in Table 2, if the vehicle enters a rapid cooling scenario and a rapid heating scenario, the priority of the cabin is increased by 1 on the basis of the original level; if there is a fogging risk, the priority of the cabin is increased by 2 on the basis of the original level.

[0055] The priorities of batteries in different states may be divided into multiple levels in advance according to the states of the batteries, wherein the larger the value of the level is, the higher the priority is.

[0056] The predetermined scenarios referred to in step S4 may include short-distance power usage scenarios, long-distance vehicle usage scenarios, scheduled fast charging scenarios, low-power charging scenarios, and high-power charging scenarios. When receiving the vehicle entering short-distance power usage scenarios, long-distance vehicle usage scenarios, scheduled fast charging scenarios, low-power charging scenarios, and high-power charging scenarios, the priority of the battery in the corresponding state can be compensated for by scenarios.

[0057] When any of the following conditions is met, the vehicle is judged to be in a short-distance vehicle use scenario:

[0058] (1) Passengers make travel reservations through the vehicle screen, and the distance to the destination is ≤ the scheduled kilometers;

[0059] (2) The passenger uses the onboard map navigation and the mileage is ≤ the scheduled mileage;

[0060] (3) If the vehicle is powered on within the preset time (minutes), the vehicle is judged to have entered the short-distance vehicle use scenario. After the preset time (minutes), the vehicle is judged to have exited the scenario compensation and the priority is output according to the vehicle's normal strategy.

[0061] When any of the following conditions is met, the vehicle is judged to be in a long-distance vehicle use scenario:

[0062] (1) The passenger makes a reservation through the vehicle screen, and the distance to the destination is greater than the scheduled kilometers;

[0063] (2) The passenger uses the vehicle map navigation and the mileage is greater than the scheduled mileage.

[0064] The fast-charging reservation scenario refers to the scenario where the passenger navigates to the charging location through the in-vehicle map and reads the navigation estimate that the remaining time to reach the fast-charging pile is ≤15 minutes.

[0065] The low-battery charging pile search scenario refers to a scenario where the vehicle battery level (SOC) is lower than a predetermined percentage (S1).

[0066] The high-power charging scenario refers to the scenario where the charging power does not exceed 60kw (kilowatts) and the vehicle SOC ≥ the predetermined percentage.

[0067] In some embodiments, the battery status includes the status of driving discharge battery cooling, the status of AC slow charging battery cooling, the status of DC fast charging battery cooling, the status of driving discharge battery heating, the status of AC slow charging battery heating and the status of DC fast charging battery heating.

[0068] The following will introduce in detail how the present application divides the battery priorities under different states and performs corresponding scene compensation in conjunction with Tables 3 to 8.

[0069] The following table 3 gives the battery cooling priority judgment and vehicle scenario compensation method when the battery is in the state of driving discharge battery cooling:

[0070] Table 3

[0071]

[0072]

[0073] When the battery is in the state of driving discharge and battery cooling, the battery priority can be divided into multiple levels in advance based on the maximum temperature Tmax of the battery cell, such as 1 to 5 different levels shown in Table 3, where the larger the value of the level, the higher the battery temperature, the greater the safety risk, and the higher the priority. Level 1 means that the battery temperature is low and there is a small cooling requirement. Level 5 means that the battery temperature is extremely high and the battery temperature needs to be lowered as soon as possible to ensure the safety of the battery cell.

[0074] In some embodiments, when the battery is in a state of discharging during driving and cooling the battery, when a signal is received that the entire vehicle has entered a short-distance power usage scenario, the priority of the battery in this state can be reduced by a predetermined value based on the original level and not less than 1, for example, the battery cooling level after scenario compensation shown in Table 3 = Max (battery cooling level - 1, 1).

[0075] In some embodiments, when the battery is in the state of battery cooling while discharging during driving, when a signal is received that the entire vehicle has entered a scheduled fast charging scenario, the battery priority can be switched to the priority corresponding to the DC fast charging battery cooling state, and the priority can be switched to the low-power fast charging scenario in the "DC fast charging battery cooling"; if the maximum power of the fast charging pile can be identified, it can be switched to the fast charging scenario of the corresponding power range in the "DC fast charging battery cooling".

[0076] In some embodiments, when the battery is in a state of driving discharge and battery cooling, when a signal is received that the vehicle has entered a low-battery pile-seeking scenario, the priority of the battery in this state is reduced by a predetermined value based on the original level. For example, the cooling priority of the battery shown in Table 3 is outputted minus 1 based on the original level.

[0077] The following table 4 shows the battery cooling priority judgment when the battery is in the AC slow charging battery cooling state:

[0078] Table 4

[0079]

[0080]

[0081] When the battery is in the AC slow charging battery cooling state, the battery priority can be divided into multiple levels based on the battery cell maximum temperature Tmax in advance, such as 1 to 5 levels shown in Table 4, where the larger the level value, the higher the priority.

[0082] The following Table 5 gives the battery cooling priority judgment and vehicle scenario compensation method when the battery is in the DC fast charging battery cooling state:

[0083] Table 5

[0084]

[0085]

[0086] When the battery is in a DC fast charging battery cooling state, the battery priority can be divided into multiple levels in advance based on the charging power P and the battery cell maximum temperature Tmax, such as 2 to 5 different levels shown in Table 5, where the larger the level value, the higher the priority.

[0087] In some embodiments, when the battery is in a DC fast charging battery cooling state, when the charging power does not exceed a predetermined power threshold and the entire vehicle enters a high-power charging scenario, the priority of the battery in this state can be reduced by a predetermined value based on the original level and not less than 2, for example, the battery cooling level after scenario compensation shown in Table 6 = Max (battery cooling level - 1, 2).

[0088] The following table 6 gives the battery heating priority judgment and vehicle scenario compensation method when the battery is in the state of driving discharge battery heating:

[0089] Table 6

[0090]

[0091] When the battery is in the state of driving discharge and battery heating, the battery priority can be divided into multiple levels in advance based on the battery cell minimum temperature Tmin, such as 1 to 5 different levels shown in Table 6, where the larger the level value, the higher the priority.

[0092] In some embodiments, when the battery is in the state of battery heating while discharging during driving, when a signal is received that the entire vehicle has entered a short-distance power usage scenario, the priority of the battery in this state can be reduced by a predetermined value based on the original level and not less than 1, for example, the battery heating level after scenario compensation shown in Table 6 = Max (battery heating level - 1, 1).

[0093] In some embodiments, when the battery is in the state of battery heating while discharging during driving, when a signal is received that the vehicle has entered a long-distance use scenario, the priority of the battery in this state can be increased by a predetermined value not higher than 5 based on the original level. For example, the battery heating level after scenario compensation shown in Table 6 = Min (battery heating level + 1, 5).

[0094] In some embodiments, when the battery is in the state of battery heating while discharging during driving, when a signal is received that the vehicle has entered a scheduled fast charging scenario, the mode can be switched to the "DC fast charging battery heating state", and the battery priority can be switched to the corresponding priority under the "DC fast charging battery heating state".

[0095] The following table 7 shows the battery heating priority judgment when the battery is in the AC slow charging battery heating state:

[0096] Table 7

[0097] Minimum cell temperature Battery heating level 0℃<Tmin≤5℃ 1 -10℃<Tmin≤0℃ 2 -15℃<Tmin≤-10℃ 3 -25℃<Tmin≤-15℃ 4 Tmin≤-25℃ 5

[0098] When the battery is in the AC slow charging battery heating state, the battery priority can be divided into multiple levels in advance based on the battery cell minimum temperature Tmin, such as 1 to 5 different levels shown in Table 7, where the larger the level value, the higher the priority.

[0099] The following Table 8 gives the battery heating priority judgment when the battery is in the DC fast charging battery heating state:

[0100] Table 8

[0101]

[0102]

[0103] When the battery is in the state of DC fast charging battery heating, the battery priority can be divided into multiple levels in advance based on the battery cell minimum temperature Tmin, such as 1 to 5 different levels shown in Table 8, where the larger the level value, the higher the priority.

[0104] It will be understood that the predetermined scenarios mentioned above are merely some illustrative examples of the present application. However, the predetermined scenarios described in the present application are not limited thereto. The predetermined scenarios of the present application may also include other unmentioned scenarios according to actual application requirements. Any solution that can perform scenario compensation for the priority of the corresponding thermal management subsystem according to the corresponding vehicle scenario shall be within the protection scope of the claims attached to the present application.

[0105] Figure 3 A specific flow chart of the vehicle thermal management energy arbitration control method of the present application is disclosed. Figure 3As shown, 1. Status monitoring of each thermal management subsystem: Determine the electric drive status based on the electric drive water temperature and vehicle speed; determine the cabin status based on the cabin cooling, heating, and defogging requirements; determine the battery status based on the battery cell temperature, charging and discharging mode, and current. 2. Priority calculation of each thermal management subsystem: Determine the electric drive cooling priority based on the electric drive status; determine the cabin cooling priority or cabin heating priority based on the cabin status; determine the battery cooling priority or battery heating priority based on the battery status. 3. Scenario compensation: When the whole vehicle enters the competitive mode scenario, the original electric drive cooling priority is scenario compensated; when the whole vehicle enters the rapid cooling scenario or the fogging risk scenario, the original cabin cooling priority is scenario compensated; when the whole vehicle enters the fogging risk scenario or the rapid heating scenario, the original cabin heating priority is scenario compensated; when the whole vehicle enters the low-power pile-seeking scenario, the short-distance driving scenario, or the long-distance driving scenario, the original battery cooling priority or the original battery heating priority is scenario compensated. 4. Thermal management priority arbitration: Conduct vehicle thermal management priority arbitration for electric drive, cabin and battery, and obtain arbitration results of cabin priority, battery priority, electric drive priority or energy consumption priority. 5. Component execution: Control the execution of corresponding components according to the arbitration results.

[0106] Figure 4 A schematic diagram of a heat pump system 100 is disclosed. Figure 4 As shown, the heat pump system 100 includes a refrigerant circuit 110, a passenger compartment circuit 140, a battery circuit 150 and an electric drive circuit 160. The passenger compartment circuit 140 includes a heater water pump HCWP. The battery circuit 150 includes a battery 151 and a battery water pump BCPF. The electric drive circuit 160 includes an electric drive 161 and an electric drive water pump EDCP.

[0107] The refrigerant circuit 110 includes a first refrigerant circuit 120 and a second refrigerant circuit 130. The first refrigerant circuit 120 includes a compressor 111, a first heat exchanger 112, a first throttle valve BEXV, a second heat exchanger 113, and a second throttle valve AEXV. The exhaust port of the compressor 111 is connected to the first end of the first heat exchanger 112, the second end of the first heat exchanger 112 is connected to one end of the first throttle valve BEXV, the other end of the first throttle valve BEXV is connected to the air intake port of the compressor 111 through the second heat exchanger 113, and the two ends of the second throttle valve AEXV are respectively connected to the air intake port and the exhaust port of the compressor 111. The second refrigerant circuit 130 includes a third throttle valve EEXV and a third heat exchanger 114. One end of the third throttle valve EEXV is connected to the second end of the second heat exchanger 113, and the other end of the third throttle valve EEXV is connected to the air intake port of the compressor 111 through the third heat exchanger 114. The first heat exchanger 112 may be a water-cooled condenser, and the third heat exchanger 114 may be an evaporator. The first throttle valve BEXV, the second throttle valve AEXV, and the third throttle valve EEXV may be electronic expansion valves.

[0108] The heat pump system 100 further includes a nine-way valve 170 and a three-way valve HCTV. The refrigerant circuit 110 and the passenger compartment circuit 140 may be connected to the battery circuit 150 and the electric drive circuit 160 through the nine-way valve 170 and the three-way valve HCTV.

[0109] by Figure 4 As an example, the heat pump system shown in the figure is combined with the reference Figure 3 and Figure 4 As shown, when the result of arbitration is cabin priority or battery priority, the opening of the first throttle valve BEXV and the three-way valve HCTV can be controlled by multiple objectives. For example, when the cabin is prioritized, the opening of the first throttle BEXV can be opened smaller; when the battery is prioritized, the opening of the first throttle valve BEXV can be opened larger. When the result of arbitration is electric drive priority, the speed of the compressor can be limited to reduce the heat generated by the compressor. When the result of arbitration is energy consumption priority, the opening of the first throttle valve BEXV and the three-way valve HCTV can be limited.

[0110] The vehicle thermal management energy arbitration control method of the present application can divide different performance requirement priorities according to the status of each thermal management subsystem of the battery, electric drive and passenger cabin. Thermal management provides corresponding energy according to different levels, ensuring accurate energy control of each thermal management subsystem, improving energy utilization efficiency and increasing cruising range.

[0111] The vehicle thermal management energy arbitration control method of the present application can perform scenario compensation on the priority of each thermal management subsystem according to the passenger usage scenario and the vehicle status, so as to achieve reasonable control of energy.

[0112] The vehicle thermal management energy arbitration control method of the present application can perform priority arbitration based on the priority of each thermal management subsystem, and execute different thermal management control methods based on the results, taking into account the performance requirements of the vehicle under extreme working conditions and the energy consumption requirements under mild working conditions, and arbitrating energy distribution from the perspective of the vehicle system to meet the precise energy distribution in different scenarios, so as to achieve a balance between performance and energy consumption.

[0113] The present application also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the vehicle thermal management energy arbitration control method described above are implemented.

[0114] The present application also provides a vehicle thermal management energy arbitration control system 200 . Figure 5 A schematic block diagram of a vehicle thermal management energy arbitration control system according to an embodiment of the present application is disclosed. Figure 5 As shown, a vehicle thermal management energy arbitration control system 200 of an embodiment of the present application includes a processor 201, an internal bus 202, a network interface 203, a memory 204, and a non-volatile memory 205, and may also include hardware required for other services. The processor 201 can read the corresponding computer program from the non-volatile memory 205 into the memory 204 and then run it to implement the steps of the vehicle thermal management energy arbitration control method as described above. Of course, in addition to the software implementation, the present application does not exclude other implementation methods, such as logic devices or a combination of software and hardware, etc., that is to say, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic components.

[0115] The vehicle thermal management energy arbitration control system 200 of the present application may have similar beneficial technical effects as the vehicle thermal management energy arbitration control method described above, and therefore, will not be described in detail herein.

[0116] The present application also provides a vehicle, which includes the vehicle thermal management energy arbitration control system 200 described above.

[0117] The above is a detailed introduction to the vehicle thermal management energy arbitration control method, system, storage medium and vehicle provided in the embodiments of the present application. Specific examples are used herein to illustrate the vehicle thermal management energy arbitration control method, system, storage medium and vehicle in the embodiments of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application and is not intended to limit the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the spirit and principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications should also fall within the scope of protection of the claims attached to the present application.

Claims

1. A vehicle thermal management energy arbitration control method, characterized in that: include: Get the current status of each thermal management subsystem of the vehicle; Determining the priority of each thermal management subsystem based on the current status of each thermal management subsystem; Get the current vehicle scene; When the current vehicle scene enters the predetermined scene, scene compensation is performed on the priority of the corresponding thermal management subsystem to adjust the priority; When there is a conflict in thermal management requests from multiple thermal management subsystems, priority arbitration is performed on the priorities of the thermal management subsystems; as well as The execution of components of the corresponding thermal management subsystem is controlled based on the arbitration result.

2. The method according to claim 1, characterized in that The thermal management subsystems include a battery, an electric drive, and a cabin, and the priority arbitration of the thermal management subsystems includes: Determine whether the numerical values ​​of the priorities of various thermal management subsystems are equal; When the priority values ​​of various thermal management subsystems are not equal, priority arbitration is performed according to the value size; When the priority values ​​of the various thermal management subsystems are equal, priority arbitration is performed based on the principle that the priority of the cabin is higher than the priority of the electric drive, and the priority of the electric drive is higher than the priority of the battery.

3. The method according to claim 2, characterized in that Before performing priority arbitration on the priorities of the thermal management subsystems, the method further includes: Determine whether the priority values ​​of all thermal management subsystems are less than or equal to 2; When the priority values ​​of all thermal management subsystems are less than or equal to 2, priority arbitration is performed based on the principle of energy consumption first. The step of determining whether the priority values ​​of the thermal management subsystems are equal is performed only when the value of the priority of all thermal management subsystems is not less than or equal to 2.

4. The method according to claim 2, characterized in that Also includes: The priority of the electric drive is divided into multiple levels in advance based on the electric drive water outlet temperature and the vehicle speed. The larger the level value, the higher the priority. The predetermined scene includes a competitive mode scene, wherein when the vehicle enters the competitive mode scene, scene compensation is performed on the priority of the electric drive, including: When the vehicle enters the competition mode scenario, the priority of the electric drive is increased by a predetermined value based on the original level.

5. The method according to claim 2, characterized in that Also includes: The cabin priorities are divided into multiple levels based on the air conditioning mode in advance, wherein the larger the level value, the higher the priority; The predetermined scenarios include a rapid cooling scenario, a rapid heating scenario, and a fogging risk scenario. When the vehicle enters the rapid cooling scenario, the rapid heating scenario, and the fogging risk scenario, respectively, scenario compensation is performed on the priority of the cabin, including: When the vehicle enters the rapid cooling scenario and the rapid heating scenario, the priority of the passenger cabin is increased by a first predetermined value based on the original level; When the entire vehicle enters the fogging risk scene, the priority of the passenger cabin is increased by a second predetermined value on the basis of the original level, wherein the second predetermined value is greater than the first predetermined value.

6. The method according to claim 2, characterized in that Also includes: According to the battery status, the battery priority in different states is divided into multiple levels in advance, wherein the larger the value of the level, the higher the priority. The battery status includes the status of driving discharge battery cooling, the status of AC slow charge battery cooling, the status of DC fast charge battery cooling, the status of driving discharge battery heating, the status of AC slow charge battery heating and the status of DC fast charge battery heating. The priorities of the batteries in different statuses are divided into multiple levels, including: When the battery is in the state of driving discharge and battery cooling, the battery priority is divided into multiple levels based on the maximum temperature of the battery cell in advance; When the battery is in the AC slow charging and battery cooling state, the battery priority is divided into multiple levels based on the maximum temperature of the battery cell in advance; When the battery is in the state of DC fast charging and battery cooling, the battery priority is divided into multiple levels based on the charging power and the maximum temperature of the battery cell; When the battery is in the state of driving discharge battery heating, the battery priority is divided into multiple levels based on the minimum temperature of the battery cell in advance; When the battery is in the AC slow charging battery heating state, the battery priority is divided into multiple levels based on the minimum temperature of the battery cell in advance; When the battery is in the DC fast charging battery heating state, the battery priority is divided into multiple levels based on the minimum temperature of the battery cells.

7. The method according to claim 6, characterized in that The predetermined scenarios include short-distance power usage scenarios, long-distance vehicle usage scenarios, scheduled fast charging scenarios, low-power charging scenarios and high-power charging scenarios. When the vehicle enters the short-distance power usage scenarios, the long-distance vehicle usage scenarios, the scheduled fast charging scenarios, the low-power charging scenarios and the high-power charging scenarios, the priority of the battery in the corresponding state is compensated by scenarios, including: When the battery is in the state of driving discharge and battery cooling, When the vehicle enters the short-distance power usage scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level and is not less than 1; When the vehicle enters the scheduled fast charging scenario, the priority of the battery is switched to the priority corresponding to the DC fast charging battery cooling state; When the vehicle enters the low-battery pile-seeking scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level. When the battery is in the state of DC fast charging battery cooling, when the charging power does not exceed the predetermined power threshold, and the vehicle enters the high power charging scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level and is not less than 2, When the battery is in the state of driving discharge and battery heating, When the vehicle enters the short-distance power usage scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level and is not less than 1; When the vehicle enters the long-distance vehicle use scenario, the priority of the battery in the state is increased by a predetermined value not higher than 5 based on the original level; When the vehicle enters the scheduled fast charging scenario, the priority of the battery is switched to the priority corresponding to the DC fast charging battery heating state.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the vehicle thermal management energy arbitration control method according to any one of claims 1 to 7 are implemented.

9. A vehicle thermal management energy arbitration control system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the vehicle thermal management energy arbitration control method according to any one of claims 1 to 7 are implemented.

10. A vehicle, characterized in that: It comprises the vehicle thermal management energy arbitration control system as claimed in claim 9.

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