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

Abstract

The application provides a vehicle thermal management energy arbitration control method, system, storage medium and vehicle. The method comprises: acquiring current states of each thermal management subsystem of the vehicle; determining priorities of each thermal management subsystem based on the current states of each thermal management subsystem respectively; acquiring a current vehicle scene; when the current vehicle scene enters a predetermined scene, performing scene compensation on the priorities of the corresponding thermal management subsystems to adjust the priorities; when there is a conflict of thermal management requests of multiple thermal management subsystems, performing priority arbitration on the priorities of each thermal management subsystem; and controlling components of the corresponding thermal management subsystem based on the arbitration result. The application can more accurately ensure energy control of each thermal management subsystem.

Description

TECHNICAL FIELD

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

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

[0003] When multiple thermal management subsystems have thermal management requests during the thermal management of the vehicle, due to the differences in performance requirements and urgency, the current thermal management control method does not comprehensively consider the actual state of the vehicle and the customer's vehicle scene, and cannot accurately and efficiently prioritize the most important performance, resulting in problems such as poor air conditioning comfort, short cruising range, and three-electric over-temperature protection of the vehicle, which affects the customer experience. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a vehicle thermal management energy arbitration control method and system, a storage medium and a vehicle, which can more accurately guarantee 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 comprises: 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, compensating the priority of the corresponding thermal management subsystem based on the scene to adjust the priority; when multiple thermal management subsystems have conflicting thermal management requests, performing priority arbitration on the priority of each thermal management subsystem; and controlling the components of the corresponding thermal management subsystem based on the arbitration result.

[0006] Further, the each thermal management subsystem includes a battery, an electric drive and a passenger cabin, and the priority arbitration on the priority of each thermal management subsystem comprises: determining whether the numerical values of the priority of each thermal management subsystem are equal; when the numerical values of the priority of each thermal management subsystem are not equal, performing priority arbitration according to the size of the numerical values; and when the numerical values of the priority of each thermal management subsystem are equal, performing priority arbitration 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] Further, before the priority arbitration of the priority of each thermal management subsystem, the method further comprises: determining whether the values of the priorities of all thermal management subsystems are less than or equal to 2; when the priorities of all thermal management subsystems are less than or equal to 2, the priority arbitration is performed according to the principle of energy consumption priority; and when the values of the priorities of all thermal management subsystems are not less than or equal to 2, the step of determining whether the values of the priorities of the thermal management subsystems are equal is performed.

[0008] Further, the method further comprises: dividing the priority of the electric drive into multiple levels in advance based on the electric drive outlet water temperature and the vehicle speed, wherein the greater the value of the level is, the higher the priority is, and the predetermined scene includes a racing mode scene, wherein when the whole vehicle enters the racing mode scene, the priority of the electric drive is compensated according to the scene, including: when the whole vehicle enters the racing mode scene, the priority of the electric drive is increased by a predetermined value based on the original level.

[0009] Further, the method further comprises: dividing the priority of the passenger cabin into multiple levels in advance based on the air conditioning mode, wherein the greater the value of the level is, the higher the priority is, and the predetermined scene includes 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, the priority of the passenger cabin is compensated according to the scene, 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 based on the original level.

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

[0011] Further, the method further comprises: dividing the priority of the battery in different states into a plurality of levels in advance according to the state of the battery, wherein the higher the value of the level is, the higher the priority is, the state of the battery includes a driving discharge battery refrigeration state, an alternating current slow charging battery refrigeration state, a direct current fast charging battery refrigeration state, a driving discharge battery heating state, an alternating current slow charging battery heating state and a direct current fast charging battery heating state, the dividing the priority of the battery in different states into a plurality of levels comprises: when the battery is in the driving discharge battery refrigeration state, dividing the priority of the battery into a plurality of levels in advance based on the maximum temperature of the battery cell; when the battery is in the alternating current slow charging battery refrigeration state, dividing the priority of the battery into a plurality of levels in advance based on the maximum temperature of the battery cell; when the battery is in the direct current fast charging battery refrigeration state, dividing the priority of the battery into a plurality of levels in advance based on the charging power and the maximum temperature of the battery cell; when the battery is in the driving discharge battery heating state, dividing the priority of the battery into a plurality of levels in advance based on the minimum temperature of the battery cell; when the battery is in the alternating current slow charging battery heating state, dividing the priority of the battery into a plurality of levels in advance based on the minimum temperature of the battery cell; when the battery is in the direct current fast charging battery heating state, dividing the priority of the battery into a plurality of levels in advance based on the minimum temperature of the battery cell.

[0012] Furthermore, the predetermined scenarios include short-distance power consumption scenarios, long-distance driving scenarios, scheduled fast charging scenarios, low-battery charging station search scenarios, and high-battery charging scenarios. When the vehicle enters each of these scenarios, scenario compensation is performed on the battery priority in the corresponding state. Specifically, when the vehicle enters each of these scenarios, scenario compensation is performed on the battery priority in the corresponding state, including: when the battery is in a driving discharge battery cooling state, when the vehicle enters the short-distance power consumption scenario, the battery priority in that state is reduced by a predetermined value, but not lower than 1; when the vehicle enters the scheduled fast charging scenario, the battery priority is switched to direct charging. The priority of the battery in the DC fast charging cooling state is as follows: When the vehicle enters the low-battery charging station search scenario, the priority of the battery in this state is reduced by a predetermined value from its original level. When the battery is in the DC fast charging cooling state, if the charging power does not exceed a predetermined power threshold and the vehicle enters the high-battery charging scenario, the priority of the battery in this state is reduced by a predetermined value from its original level, but not lower than 2. When the battery is in the driving discharge battery heating state, when the vehicle enters the short-distance power consumption scenario, the priority of the battery in this state is reduced by a predetermined value from its original level, but not lower than 1. When the vehicle enters the long-distance driving scenario, the priority of the battery in this state is increased by a predetermined value from its original level, but not higher than 5. 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.

[0013] Another aspect of this 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 this 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. When the processor executes the computer program, it implements the steps of the vehicle thermal management energy arbitration control method as described above.

[0015] Another aspect of this application provides a vehicle. The vehicle includes the vehicle thermal management energy arbitration control system described above.

[0016] The vehicle thermal management energy arbitration control method, system and storage medium of one or more embodiments of the present application are added to the whole vehicle scene, and the priority of the corresponding thermal management subsystem is compensated according to the whole vehicle scene. When the thermal management requests of multiple thermal management subsystems conflict, the priority of each thermal management subsystem is prioritized, and the corresponding components of the corresponding thermal management subsystem are controlled to perform corresponding operations according to the arbitration result, so that the energy control can be better completed according to the actual state of the vehicle, and the energy control of each thermal management subsystem can be more accurately ensured, the energy utilization efficiency is improved, and the cruising range of the vehicle is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A flowchart of the vehicle thermal management energy arbitration control method of one embodiment of the present application.

[0018] Figure 2 A schematic diagram of prioritizing the priority of each thermal management subsystem for one embodiment of the present application.

[0019] Figure 3 A specific flowchart 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 the vehicle thermal management energy arbitration control system of one embodiment of the present application. DETAILED DESCRIPTION

[0022] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to designate the same elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, 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 will be described in detail below with reference to the accompanying drawings. The features in the following embodiments and implementation manners can be combined with each other without conflict.

[0024] The present application provides a vehicle thermal management energy arbitration control method. Figure 1 A flowchart of the vehicle thermal management energy arbitration control method of one embodiment of the present application is disclosed. As shown in Figure 1 The vehicle thermal management energy arbitration control method of one embodiment of the present application can include steps S1 to S8.

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

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

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

[0028] In step S4, it is determined whether the current vehicle scene enters a predetermined scene. When 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 compensated for the scene, so as to make a corresponding adjustment to the priority. After the priority of the corresponding thermal management subsystem is compensated for the scene, the process proceeds to step S6.

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

[0031] In step S7, when the conflict occurs between the thermal management requests of multiple thermal management subsystems, the priority of each thermal management subsystem can be arbitrated.

[0032] In an optional embodiment, each thermal management subsystem includes a battery, an electric drive, and a passenger cabin. Figure 2 A schematic diagram of the priority arbitration of the priority of each thermal management subsystem according to an embodiment of the present application is disclosed. As shown in some embodiments, the priority arbitration of the priority of each thermal management subsystem in step S7 can further include steps S71 to S73. Figure 2

[0033] In step S71, the numerical values of the priority of each thermal management subsystem are compared, and it is determined whether the numerical values of the priority of each thermal management subsystem are equal.

[0034] When the result of the determination in step S71 is that the numerical values of the priority of each thermal management subsystem are not equal, the process proceeds to step S72. In step S72, the priority can be arbitrated according to the size of the numerical values. The larger the numerical value, the higher the priority.

[0035] ​When the result of the judgment in step S71 is that the values of the priorities of the respective 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 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.

[0036] In some embodiments, the priority arbitration of the priorities of the respective thermal management subsystems in step S7 can further include steps S74 and S75.

[0037] In step S74, it is judged whether the values of the priorities of all the 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 values of the priorities of all the thermal management subsystems are less than or equal to 2, it indicates that the priorities of the respective thermal management subsystems are not very high, and the thermal management requirements of the respective thermal management subsystems are not very urgent. Therefore, at this time, the priority arbitration can be performed according to the principle of energy consumption priority. When the result of the judgment in step S74 is “no”, the process proceeds to step S71. That is, when the values of the priorities of all the thermal management subsystems are not less than or equal to 2, the step of determining whether the values of the priorities of the respective thermal management subsystems are equal in step S71 is entered.

[0039] In step S8, based on the arbitration result in step S7, the corresponding components corresponding to the respective thermal management subsystems can be controlled to perform corresponding operations to achieve corresponding control requirements.

[0040] In some embodiments, the vehicle thermal management energy arbitration control method of the present application can 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 the multiple thermal management subsystems do not conflict, for example, when only a single thermal management subsystem has a cooling or heating requirement, arbitration is not required, and the performance can be controlled according to the requirement of the thermal management subsystem to achieve.

[0042] The following will be described in detail how the priorities of the respective thermal management subsystems are divided and the corresponding scene compensation is performed.

[0043] The following Table 1 shows the priority judgment and vehicle scene compensation method of the electric drive:

[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 temperature and the vehicle speed, such as 0-4 different levels shown in Table 1, wherein the greater the level value, the higher the priority.

[0047] The predetermined scene in step S4 can include a racing mode scene. When the whole vehicle enters the racing mode scene, the priority of the electric drive can be compensated according to the scene. For example, in some sports vehicles, a racing mode button is configured. When a signal that the racing mode button is pressed is received, it can be determined that the whole vehicle enters the racing mode scene.

[0048] In some embodiments, when the whole vehicle enters the racing mode scene, 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] The following Table 2 shows the priority judgment of the passenger cabin and the whole vehicle scene compensation method:

[0050] Table 2

[0051] Air conditioning mode Cabin priority I Scenario compensation Cabin priority II Shutdown 0 / 0 Ventilation 0 / 0 Refrigeration 2 Fast refrigeration 3 Heating 2 Fast heating 3 Heating dehumidification 2 Fogging risk 4

[0052] The priority of the passenger cabin can be divided into multiple levels in advance based on the air conditioning mode, such as 0-2 different levels shown in Table 2, wherein the greater the level value, the higher the priority. For the stop and ventilation modes, the corresponding priority of the passenger cabin is 0. For the refrigeration, heating and heating dehumidification modes without fogging risk, the corresponding priority of the passenger cabin is 2.

[0053] The predetermined scene in step S4 can include a fast refrigeration scene, a fast heating scene and a fogging risk scene. When the whole vehicle enters the fast refrigeration scene, the fast heating scene and the fogging risk scene respectively, the priority of the passenger cabin can be compensated according to the scene.

[0054] In some embodiments, when the whole vehicle enters the fast refrigeration scene and the fast heating scene, the priority of the passenger cabin can be increased by a first predetermined value based on the original level; when the whole vehicle enters the fogging risk scene, the priority of the passenger cabin can be increased by a second predetermined value based on the original level, wherein the second predetermined value is greater than the first predetermined value. For example, if the whole vehicle enters the fast refrigeration and fast heating scenes, the priority of the passenger cabin is increased by 1 based on the original level as shown in Table 2; if the fogging risk occurs, the priority of the passenger cabin is increased by 2 based on the original level.

[0055] The priority of the battery in different states can be divided into multiple levels in advance according to the state of the battery, wherein the greater the level value, the higher the priority.

[0056] The predetermined scenario of step S4 can include a short-distance electricity use scenario, a long-distance vehicle use scenario, a pre-booking fast charging scenario, a low power searching scenario, and a high power charging scenario. When the vehicle respectively enters the short-distance electricity use scenario, the long-distance vehicle use scenario, the pre-booking fast charging scenario, the low power searching scenario, and the high power charging scenario, the priority of the battery in the corresponding state can be compensated.

[0057] When any of the following conditions is met, it is determined that the vehicle enters the short-distance vehicle use scenario:

[0058] (1) The passenger books a trip through the large screen of the vehicle, and the distance to the destination is ≤ the predetermined distance;

[0059] (2) The passenger uses the vehicle map navigation, and the driving distance is ≤ the predetermined distance;

[0060] (3) The vehicle is powered on within the predetermined time (minutes), and it is determined that the vehicle enters the short-distance vehicle use scenario. After the predetermined time (minutes), it is determined to exit the scenario compensation, and the priority is output according to the conventional strategy of the vehicle.

[0061] When any of the following conditions is met, it is determined that the vehicle enters the long-distance vehicle use scenario:

[0062] (1) The passenger books a trip through the large screen of the vehicle, and the distance to the destination is > the predetermined distance;

[0063] (2) The passenger uses the vehicle map navigation, and the driving distance is > the predetermined distance.

[0064] The pre-booking fast charging scenario refers to a scenario in which the passenger charges the vehicle at a charging location through the vehicle map navigation, and the remaining time to reach the fast charging pile is ≤ 15 min (minutes) according to the navigation.

[0065] The low power searching scenario refers to a scenario in which the vehicle power (SOC) is lower than the predetermined percentage (S1).

[0066] The high power charging scenario refers to a scenario in which the charging power is not more than 60 kw (kilowatts), and the vehicle SOC is ≥ the predetermined percentage.

[0067] In some embodiments, the state of the battery includes a driving discharge battery cooling state, an alternating current slow charging battery cooling state, a direct current fast charging battery cooling state, a driving discharge battery heating state, an alternating current slow charging battery heating state, and a direct current fast charging battery heating state.

[0068] The following Tables 3 to 8 will be described in detail.

[0069] Table 3 shows the cooling priority judgment of the battery and the vehicle scenario compensation method when the battery is in the driving discharge battery cooling state.

[0070] Table Three

[0071]

[0072]

[0073] In the state of the battery in the vehicle discharge battery cooling, the priority of the battery can be divided into multiple levels based on the maximum temperature Tmax of the battery cell in advance, for example, 1-5 different levels shown in Table Three, wherein the greater the value of the level, the higher the battery temperature, the greater the safety risk, and the higher the priority. Level 1 indicates that the battery temperature is low and has less cooling demand. Level 5 indicates that the battery temperature is extremely high and needs to be reduced as soon as possible to ensure the safety of the battery cell.

[0074] In some embodiments, in the state of the battery in the vehicle discharge battery cooling, when the vehicle enters the short-distance power consumption scene, 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 scene compensation shown in Table Three = Max(battery cooling level-1, 1).

[0075] In some embodiments, in the state of the battery in the vehicle discharge battery cooling, when the vehicle enters the pre-booking fast charging scene, the priority of the battery can be switched to the corresponding priority in the state of the direct current fast charging battery cooling. The priority can be switched to the low-power fast charging scene in the "direct current fast charging battery cooling". If the maximum power of the fast charging pile can be identified, the priority can be switched to the fast charging scene of the corresponding power segment in the "direct current fast charging battery cooling".

[0076] In some embodiments, in the state of the battery in the vehicle discharge battery cooling, when the vehicle enters the low-power searching pile scene, the priority of the battery in this state can be reduced by a predetermined value based on the original level, for example, the cooling priority of the battery is reduced by 1 based on the original level.

[0077] The following Table Four shows the cooling priority judgment of the battery in the state of the alternating current slow charging battery cooling:

[0078] Table Four

[0079]

[0080]

[0081] In the state of the battery in the alternating current slow charging battery cooling, the priority of the battery can be divided into multiple levels based on the maximum temperature Tmax of the battery cell in advance, for example, 1-5 levels shown in Table Four, wherein the greater the value of the level, the higher the priority.

[0082] The following Table 5 shows the battery cooling priority judgment and vehicle scene compensation method when the battery is in the state of direct current fast charging battery cooling:

[0083] Table 5

[0084]

[0085]

[0086] In the state of direct current fast charging battery cooling, the battery priority can be divided into multiple levels based on the charging power P and the maximum temperature Tmax of the battery cell, for example, 2-5 different levels shown in Table 5, wherein the greater the level value, the higher the priority.

[0087] In some embodiments, in the state of direct current fast charging battery cooling, when the charging power does not exceed the predetermined power threshold, and the vehicle enters the high power charging scene, 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 scene compensation shown in Table 6 = Max(battery cooling level-1, 2).

[0088] The following Table 6 shows the battery heating priority judgment and vehicle scene compensation method when the battery is in the state of driving discharge battery heating:

[0089] Table 6

[0090]

[0091] In the state of driving discharge battery heating, the battery priority can be divided into multiple levels based on the minimum temperature Tmin of the battery cell, for example, 1-5 different levels shown in Table 6, wherein the greater the level value, the higher the priority.

[0092] In some embodiments, in the state of driving discharge battery heating, when the vehicle enters the short-distance power consumption scene is received, 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 scene compensation shown in Table 6 = Max(battery heating level-1, 1).

[0093] In some embodiments, in the state of driving discharge battery heating, when the vehicle enters the long-distance driving scene is received, the priority of the battery in this state can be increased by a predetermined value based on the original level and not higher than 5, for example, the battery heating level after scene compensation shown in Table 6 = Min(battery heating level+1, 5).

[0094] In some embodiments, when the vehicle enters the pre-booking fast charging scenario, the mode can be switched to the "DC fast charging battery heating state", and the priority of the battery is switched to the corresponding priority in the "DC fast charging battery heating state".

[0095] Table Seven shows the battery heating priority judgment when the battery is in the AC slow charging battery heating state:

[0096] Table Seven

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

[0098] When the battery is in the AC slow charging battery heating state, the priority of the battery can be divided into multiple levels based on the minimum temperature Tmin of the battery cell, for example, 1-5 different levels as shown in Table Seven, wherein the greater the level value, the higher the priority.

[0099] Table Eight shows the battery heating priority judgment when the battery is in the DC fast charging battery heating state:

[0100] Table Eight

[0101]

[0102]

[0103] When the battery is in the DC fast charging battery heating state, the priority of the battery can be divided into multiple levels based on the minimum temperature Tmin of the battery cell, for example, 1-5 different levels as shown in Table Eight, wherein the greater the level value, the higher the priority.

[0104] It can be understood that the above-mentioned predetermined scenarios are only some illustrative examples of the present application, however, the predetermined scenarios described in the present application are not limited thereto, and the predetermined scenarios of the present application can also include other unmentioned scenarios according to actual application requirements, as long as the scheme can compensate the priority of the corresponding thermal management subsystem according to the corresponding vehicle scenario will be within the protection scope of the claims attached to the present application.

[0105] Figure 3 A specific flowchart of the vehicle thermal management energy arbitration control method of the present application is disclosed. As shown in Figure 1, the vehicle thermal management energy arbitration control method of the present application comprises the following steps: Figure 3As shown, I. Each thermal management subsystem state monitoring: determine the electric drive state based on the electric drive water temperature and vehicle speed; determine the passenger cabin state based on the passenger cabin cooling, heating, and defogging needs; determine the battery state based on the battery cell temperature, charging and discharging mode, and current. II. Each thermal management subsystem priority calculation: determine the electric drive cooling priority based on the electric drive state; determine the passenger cabin cooling priority or passenger cabin heating priority based on the passenger cabin state; determine the battery cooling priority or battery heating priority based on the battery state. III. Scene compensation: when the whole vehicle enters the competition mode scene, the original electric drive cooling priority is compensated; when the whole vehicle enters the rapid cooling scene or the fogging risk scene, the original passenger cabin cooling priority is compensated; when the whole vehicle enters the fogging risk scene or the rapid heating scene, the original passenger cabin heating priority is compensated; when the whole vehicle enters the low power seeking post scene, the short distance driving scene or the long distance driving scene, the original battery cooling priority or the original battery heating priority is compensated. IV. Thermal management priority arbitration: the whole vehicle thermal management priority arbitration of electric drive, passenger cabin and battery can obtain the arbitration result of passenger cabin priority, battery priority, electric drive priority or energy consumption priority. V. Component execution: control the corresponding components according to the arbitration result.

[0106] Figure 4 A structural schematic diagram of a heat pump system 100 is disclosed. As shown, Figure 4 The heat pump system 100 includes a refrigerant circuit 110, a passenger cabin circuit 140, a battery circuit 150, and an electric drive circuit 160. The passenger cabin circuit 140 includes a heater core 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 expansion valve BEXV, a second heat exchanger 113, and a second expansion valve AEXV. The discharge port of the compressor 111 is connected to a 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 expansion valve BEXV, the other end of the first expansion valve BEXV is connected to the suction port of the compressor 111 through the second heat exchanger 113, and the two ends of the second expansion valve AEXV are respectively connected to the suction port and discharge port of the compressor 111. The second refrigerant circuit 130 includes a third expansion valve EEXV and a third heat exchanger 114. One end of the third expansion valve EEXV is connected to the second end of the second heat exchanger 113, and the other end of the third expansion valve EEXV is connected to the suction port of the compressor 111 through the third heat exchanger 114. The first heat exchanger 112 can be a water-cooled condenser, and the third heat exchanger 114 can be an evaporator. The first throttle valve BEXV, the second throttle valve AEXV, and the third throttle valve EEXV can be electronic expansion valves.

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

[0109] by Figure 4 Taking the heat pump system shown as an example, and referring to the reference Figure 3 and Figure 4 As shown, when the arbitration result is cabin priority or battery priority, multi-objective control can be applied to the opening of the first throttle valve BEXV and the three-way valve HCTV. For example, when cabin priority is given, the opening of the first throttle valve BEXV can be reduced; when battery priority is given, the opening of the first throttle valve BEXV can be increased. When the arbitration result is electric drive priority, the compressor speed can be limited to reduce the heat generated by the compressor. When the arbitration result 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 this application can divide different performance demand priorities according to the status of each thermal management subsystem of battery, electric drive and passenger compartment. Thermal management provides corresponding energy according to different levels, ensuring accurate energy control of each thermal management subsystem, improving energy utilization efficiency and increasing driving range.

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

[0112] The vehicle thermal management energy arbitration control method of the present application can perform priority arbitration according to the priorities of various thermal management subsystems, execute different thermal management control methods according to the results, balance the performance requirements and energy consumption requirements in mild working conditions, arbitrate energy distribution from the perspective of the vehicle system, and meet the precise energy distribution in different scenarios to achieve the balance between performance and energy consumption.

[0113] The present application also provides a computer readable storage medium. The computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the vehicle thermal management energy arbitration control method described above.

[0114] The present application also provides a vehicle thermal management energy arbitration control system 200. Figure 5 A schematic block diagram of the vehicle thermal management energy arbitration control system of an embodiment of the present application is disclosed. As shown in the figure, Figure 5 The 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, a non-volatile memory 205, and of course, other hardware required by the business. 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 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, the execution subject of the following processing flow is not limited to the logic units, but can also be hardware or logic devices.

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

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

[0117] The vehicle thermal management energy arbitration control method, system, storage medium and vehicle provided by the embodiments of the present application are described in detail above. The vehicle thermal management energy arbitration control method, system, storage medium and vehicle provided by the embodiments of the present application are described in this paper by applying specific examples. The above description of the embodiments is only used to help understand the core idea of the present application and does not limit the present application. It should be noted that, for those skilled in the art, without departing from the spirit and principles of the present application, some 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 appended claims of the present application.

Claims

1. A vehicle thermal management energy arbitration control method, characterized in that, include: Obtain the current status of each thermal management subsystem of the vehicle; The priority of each thermal management subsystem is determined based on its current state. Obtain the current vehicle scene; When the current vehicle scenario enters the predetermined scenario, scenario compensation is performed on the priority of the corresponding thermal management subsystem to adjust the priority; When multiple thermal management requests from different thermal management subsystems conflict, priority arbitration is performed to determine the priority of each thermal management subsystem. as well as The arbitration result is used to control the operation of the components of the corresponding thermal management subsystem.

2. The method as described in claim 1, characterized in that, The various thermal management subsystems include batteries, electric propulsion, and the cabin. The priority arbitration of the various thermal management subsystems includes: Determine whether the priority values ​​of each thermal management subsystem are equal; When the priority values ​​of the various thermal management subsystems are not equal, priority arbitration is performed according to the magnitude of the values. When the priority values ​​of each thermal management subsystem are equal, priority arbitration is carried out according to the principle that the cabin priority is greater than the electric drive priority, and the electric drive priority is greater than the battery priority.

3. The method as described in claim 2, characterized in that, Prior to arbitrating the priorities of the various 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 carried out according to the principle of energy consumption priority. The step of determining whether the priority values ​​of each thermal management subsystem are equal is only performed when the priority values ​​of all thermal management subsystems are not less than or equal to 2.

4. The method as described in claim 2, characterized in that, Also includes: Based on the electric drive outlet water temperature and vehicle speed, the electric drive priority is pre-classified into multiple levels, with higher numerical values ​​indicating higher priority. The predetermined scenarios include a racing mode scenario. When the vehicle enters the racing mode scenario, scenario compensation is performed on the priority of the electric drive, including: When the vehicle enters the racing mode scenario, the priority of the electric drive is increased by a predetermined value based on the original level.

5. The method as described in claim 2, characterized in that, Also includes: Based on the air conditioning mode, the cabin priority is divided into multiple levels in advance, where the higher the level number, 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 each of these scenarios, the priority of the passenger cabin is compensated, 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 vehicle enters the fogging risk scenario, the priority of the passenger cabin is increased by a second predetermined value based on the original level, wherein the second predetermined value is greater than the first predetermined value.

6. The method as described in claim 2, characterized in that, Also includes: Based on the battery's state, the priority of the battery in different states is divided into multiple levels, where the higher the level number, the higher the priority. The battery states include the cooling state of the vehicle discharge battery, the cooling state of the AC slow-charging battery, the cooling state of the DC fast-charging battery, the heating state of the vehicle discharge battery, the heating state of the AC slow-charging battery, and the heating state of the DC fast-charging battery. The priority of the batteries in different states is divided into multiple levels, including: When the battery is in a cooling state during vehicle discharge, the battery priority is divided into multiple levels based on the highest temperature of the battery cells. When the battery is in the AC slow charging cooling state, the battery priority is divided into multiple levels based on the highest temperature of the battery cell. When the battery is in a DC fast charging cooling state, the battery priority is divided into multiple levels based on the charging power and the highest temperature of the battery cell. When the battery is in the state of driving discharge and battery heating, the battery priority is divided into multiple levels based on the lowest temperature of the battery cells in advance; When the battery is in AC slow charging and heating mode, the battery priority is divided into multiple levels based on the lowest temperature of the battery cell. When the battery is in DC fast charging mode and heating mode, the battery priority is divided into multiple levels based on the lowest temperature of the battery cells.

7. The method as described in claim 6, characterized in that, The predetermined scenarios include short-distance power consumption scenarios, long-distance driving scenarios, scheduled fast charging scenarios, low-battery charging station search scenarios, and high-battery charging scenarios. When the vehicle enters each of these scenarios, scenario compensation is performed to adjust the battery priority in the corresponding state, including: When the battery is in a state of cooling during vehicle discharge, When the vehicle enters the short-distance power consumption scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level, but not lower 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 charging station search scenario, the battery priority in this state is reduced by a predetermined value from its original level. When the battery is in a DC fast charging cooled state, and the charging power does not exceed a predetermined power threshold, and the vehicle enters the high-charge charging scenario, the priority of the battery in this state will be reduced by a predetermined value, but not lower than 2, based on its original level. When the battery is in the state of discharging and heating during vehicle operation, When the vehicle enters the short-distance power consumption scenario, the priority of the battery in the state is reduced by a predetermined value based on the original level, but not lower than 1. When the vehicle enters the long-distance driving scenario, the priority of the battery in the state is increased by a predetermined value based on the original level, but not higher than 5. 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 the processor, it implements the steps of the vehicle thermal management energy arbitration control method as described in any one of claims 1 to 7.

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, it implements the steps of the vehicle thermal management energy arbitration control method as described in any one of claims 1 to 7.

10. A vehicle, characterized in that, Including the vehicle thermal management energy arbitration control system as described in claim 9.

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