Thermal management control method, device and system, electronic device and storage medium

Abstract

The invention relates to a thermal management control method, equipment and system, electronic equipment and a storage medium, relates to the technical field of vehicles, and aims to reduce the overall energy consumption of the vehicle. The method comprises the following steps: determining a power consumption value of at least one target device in the thermal management system; generating an energy flow analysis graph based on the consumed power value; wherein the energy flow analysis chart is used for reflecting the power consumption value of at least one target device and the energy flow analysis chart; based on the energy flow analysis chart, determining a power distribution scheme with the minimum total energy consumption of at least one target device; and controlling at least one target device based on the power distribution scheme. According to the thermal management control method provided by the invention, the energy flow analysis chart can be generated through the consumed power value of the target equipment, and the operation state of the target equipment can be accurately regulated and controlled, so that the energy consumption of the whole vehicle is effectively reduced.

Description

Technical Field

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

[0002] As global attention to environmental protection and sustainable development continues to rise, the new energy vehicle industry has ushered in rapid development. As an important alternative to traditional fuel vehicles, new energy vehicles have significant advantages in reducing carbon emissions and reducing energy dependence. At present, the thermal management system of new energy vehicles faces a series of severe challenges. The architecture of the thermal management system is complex and diverse, covering multiple subsystems (such as battery thermal management system, motor cooling system, air conditioning system, etc.). The energy consumption and thermal management efficiency of each subsystem under different operating conditions vary significantly. On the one hand, the thermal management system of new energy vehicles needs to ensure that core components such as batteries and motors are within the appropriate temperature range under a variety of complex operating conditions to ensure performance, life and safety. On the other hand, it must take into account efficient energy utilization, strive to reduce energy consumption while meeting temperature control requirements, and improve vehicle endurance and energy efficiency. The system is highly complex and the coordination requirements of various components are strict.

[0003] While existing thermal management systems for new energy vehicles can assess energy consumption under specific subsystems or driving conditions, they lack versatility and are difficult to adapt to the diverse needs of different new energy vehicles. More importantly, under complex and changing operating conditions, existing systems lack sufficient adaptability, making it difficult to stably and efficiently achieve thermal management goals. This not only results in unnecessary energy waste, but also leads to consistently low overall vehicle energy efficiency. Summary of the Invention

[0004] The present invention provides a thermal management control method, device, system, electronic device and storage medium to reduce the overall energy consumption of a vehicle.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present application provides a thermal management control method, which includes: determining the power consumption value of at least one target device in the thermal management system; generating an energy flow analysis diagram based on the power consumption value; wherein the energy flow analysis diagram is used to reflect the power consumption value and energy flow direction of at least one target device; based on the energy flow analysis diagram, determining a power allocation scheme with the minimum total energy consumption of at least one target device; and controlling at least one target device based on the power allocation scheme.

[0007] Using these technical approaches, the power consumption of at least one target device in the thermal management system is determined. Based on this power consumption, an energy flow distribution diagram is generated that intuitively and clearly reflects the power consumption of the target device and the energy flow within the thermal management system, providing a visual analysis foundation for energy optimization. The energy flow analysis diagram allows for in-depth analysis of the underlying logic of energy distribution, ultimately determining a power allocation plan that minimizes the total energy consumption of the target device. Based on this power allocation plan, the target device can be precisely regulated, ultimately effectively reducing overall vehicle energy consumption.

[0008] Furthermore, determining the power consumption value of at least one target device in the thermal management system includes: determining the power consumption value of the at least one target device based on environmental data and / or operating data of the vehicle.

[0009] According to the above-mentioned technical means, the power consumption value of the target equipment can be determined more accurately through the vehicle's environmental data and operating data, while meeting the dynamic working conditions of the vehicle. Without the need for additional complex measuring equipment, the energy consumption fluctuations of the target equipment can be accurately captured through the vehicle's environmental data and operating data. This not only reduces the cost and deployment difficulty of the thermal management control system, but also provides a timely and reliable quantitative basis for the power allocation optimization and energy efficiency evaluation of the thermal management system, thereby improving the accuracy and economy of thermal management energy consumption control.

[0010] Furthermore, the target device includes a heat source device that generates heat during operation; the operating data includes: speed, acceleration and workload of the heat source device; based on the vehicle's environmental data and / or operating data, determining the power consumption value of at least one target device, including: determining the heat dissipation of the heat source device based on the speed, acceleration and workload of the heat source device; determining the power consumption value of the heat source device based on the heat dissipation of the heat source device.

[0011] Using these technical approaches, speed and acceleration directly reflect the vehicle's dynamic operating intensity. Combined with the workload of the heat source equipment, these technologies capture the source of heat generation, making heat dissipation calculations more accurate to actual operating conditions and reducing errors caused by relying solely on static parameters. This eliminates the need for additional complex power sensors, as power consumption can be derived from existing heat dissipation data, reducing hardware costs. Furthermore, the derivation logic, based on thermodynamic principles, ensures the stability and consistency of power calculations, providing a reliable data foundation for vehicle energy flow analysis.

[0012] Furthermore, the target device includes a refrigeration device; the operating data includes the rotational speed of the refrigeration device; based on the vehicle's environmental data and / or operating data, determining the power consumption value of at least one target device, including: determining the power consumption value of the refrigeration device based on the rotational speed of the refrigeration device and a mapping relationship; wherein the mapping relationship represents the correspondence between the rotational speed of the refrigeration device and the power consumption value.

[0013] According to the above technical means, the power consumption value of the refrigeration equipment can be determined more quickly and accurately through the rotational speed and mapping relationship of the refrigeration equipment without relying on complex real-time calculation models, which greatly reduces the data processing pressure of the thermal management control system and improves the response speed of energy consumption monitoring.

[0014] Furthermore, the target device includes a heat exchange device; based on the vehicle's environmental data and / or operating data, the power consumption value of at least one target device is determined, including: determining the working status of the heat exchange device based on the environmental data and / or operating data; determining the power consumption value of the heat exchange device based on the working status of the heat exchange device.

[0015] By combining environmental data with operational data based on the aforementioned technical means, the limitations of a single parameter can be overcome, fully capturing the true state of the heat exchange equipment under different operating conditions. This can reduce calculation deviations in power consumption values ​​caused by misjudgment of the state and improve the accuracy of thermal management control methods.

[0016] Furthermore, generating an energy flow analysis diagram based on the power consumption value includes: determining the energy flow direction between at least one target device based on the power consumption value; and generating the energy flow analysis diagram based on the power consumption value and the energy flow direction.

[0017] Using these technical methods, power consumption provides a quantitative basis for clarifying the energy flow between target devices, thereby constructing the core framework of the energy flow analysis diagram. Combining power consumption and energy flow, the resulting energy flow analysis diagram can provide an intuitive and visual representation of energy usage and flow in the thermal management system, providing a concrete reference for energy efficiency analysis.

[0018] Furthermore, based on the energy flow analysis diagram, a power allocation scheme with the minimum total energy consumption of at least one target device is determined, including: based on the energy flow analysis diagram and a preset correspondence, a power allocation scheme with the minimum total energy consumption of at least one target device is determined; wherein the preset correspondence is used to represent the correspondence between the energy flow analysis diagram and the power allocation scheme.

[0019] According to the above-mentioned technical means, through the energy flow analysis diagram and the preset corresponding relationship, the power allocation plan with the minimum total energy consumption of the target equipment is determined. The plan is formulated by considering the energy flow law at the system level, avoiding the energy efficiency imbalance of the whole vehicle caused by energy saving of a single target equipment. While ensuring the minimum total energy consumption, the coordinated operation efficiency of each target equipment is taken into account, reducing the overall energy consumption and improving the economy and reliability of the target equipment.

[0020] In the second aspect, the present application provides a thermal management control device, which includes: a processing module and a control module; the processing module is used to determine the power consumption value of at least one target device in the thermal management system; and is also used to generate an energy flow analysis diagram based on the power consumption value; wherein the energy flow analysis diagram is used to reflect the power consumption value and energy flow direction of at least one target device; and is also used to determine, based on the energy flow analysis diagram, a power allocation scheme with the minimum total energy consumption of at least one target device; the control module is used to control at least one target device based on the power allocation scheme.

[0021] Furthermore, the processing module is specifically configured to determine a power consumption value of at least one target device based on the environmental data and / or operating data of the vehicle.

[0022] Furthermore, the target device includes a heat source device that generates heat during operation; the operating data includes: speed, acceleration and workload of the heat source device; the processing module is specifically used to determine the heat dissipation of the heat source device based on the speed, acceleration and workload of the heat source device; based on the heat dissipation of the heat source device, determine the power consumption value of the heat source device.

[0023] Furthermore, the target device includes a refrigeration device; the operating data includes the rotational speed of the refrigeration device; the processing module is specifically used to determine the power consumption value of the refrigeration device based on the rotational speed of the refrigeration device and the mapping relationship; wherein the mapping relationship represents the correspondence between the rotational speed of the refrigeration device and the power consumption value.

[0024] Furthermore, the target device includes a heat exchange device; a processing module is specifically used to determine the working state of the heat exchange device based on environmental data and / or operation data; and determine the power consumption value of the heat exchange device based on the working state of the heat exchange device.

[0025] Furthermore, the processing module is specifically configured to determine the energy flow direction between at least one target device based on the power consumption value; and generate an energy flow analysis diagram based on the power consumption value and the energy flow direction.

[0026] Furthermore, the processing module is specifically used to determine a power allocation scheme with the minimum total energy consumption of at least one target device based on the energy flow analysis diagram and a preset correspondence; wherein the preset correspondence is used to represent the correspondence between the energy flow analysis diagram and the power allocation scheme.

[0027] In a third aspect, the present application provides a thermal management control system, comprising: a data acquisition device, a thermal management control device, and a thermal management system; the data acquisition device is configured to acquire environmental data and / or operational data of a vehicle; the thermal management control device is configured to determine the power consumption value of at least one target device in the thermal management system; based on the power consumption value, an energy flow analysis diagram is generated; wherein the energy flow analysis diagram is configured to reflect the power consumption value and energy flow direction of the at least one target device; based on the energy flow analysis diagram, a power allocation scheme is determined that minimizes the total energy consumption of the at least one target device; and based on the power allocation scheme, the at least one target device is controlled. The thermal management system is configured to control the temperature of the vehicle based on the at least one target device.

[0028] In a fourth aspect, the present application provides an electronic device, comprising: a processor and a memory; the memory storing instructions executable by the processor. When the processor is configured to execute the instructions, the electronic device implements the method of the first aspect.

[0029] In a fifth aspect, the present invention provides a vehicle comprising the electronic device according to the fourth aspect.

[0030] In a sixth aspect, the present invention provides a computer-readable storage medium, which, when instructions in the computer-readable storage medium are executed by a processor of a vehicle, enables the vehicle to execute the method in the above-mentioned first aspect and any possible implementation method thereof.

[0031] In a seventh aspect, the present invention provides a computer program product, which includes computer instructions. When the computer instructions are run on a vehicle, the vehicle executes the method of the above-mentioned first aspect and any possible implementation method thereof.

[0032] It should be noted that the technical effects brought about by any implementation method in the second to seventh aspects can refer to the technical effects brought about by the corresponding implementation method in the first aspect, and will not be repeated here.

[0033] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0035] Figure 1 An architectural diagram of a thermal management control system provided by the present invention;

[0036] Figure 2 A flow chart of a thermal management control method provided by the present invention;

[0037] Figure 3 An energy flow analysis diagram provided by the present invention;

[0038] Figure 4 Another energy flow analysis diagram provided by the present invention;

[0039] Figure 5 Another energy flow analysis diagram provided by the present invention;

[0040] Figure 6 A flow chart of another thermal management control method provided by the present invention;

[0041] Figure 7 A flow chart of another thermal management control method provided by the present invention;

[0042] Figure 8 A flow chart of another thermal management control method provided by the present invention;

[0043] Figure 9 Another energy flow analysis diagram provided by the present invention;

[0044] Figure 10 A structural diagram of a thermal management control device provided by the present invention;

[0045] Figure 11 This is a block diagram of an electronic device provided by the present invention. DETAILED DESCRIPTION

[0046] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily appreciate the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the various details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0047] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, article, or device comprising the element.

[0048] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0049] In some embodiments, the thermal management control method provided by the embodiments of the present application can be applied to Figure 1 The thermal management control system shown in FIG. The thermal management control system includes: a collection device 110, a thermal management control device 120, and a thermal management system 130. The thermal management control device 120, the collection device 110, and the thermal management system 130 are connected to each other in communication.

[0050] As a feasible implementation method, the acquisition device 110 is used to obtain the vehicle's environmental data and / or operating data.

[0051] Exemplarily, the acquisition device 110 may be any device or equipment capable of collecting vehicle data, such as a temperature sensor, a pressure sensor, etc., and this embodiment of the present application does not limit this.

[0052] It should be noted that the acquisition device 110 can also obtain the operating status of the vehicle through the Controller Area Network Bus (CAN bus).

[0053] As a feasible implementation manner, the thermal management control device 120 includes a processing module and a control module.

[0054] Exemplarily, the processing module is configured to determine a power consumption value of at least one target device in the thermal management system.

[0055] Exemplarily, the control module is used to generate an energy flow analysis diagram based on the power consumption value; determine a power allocation scheme with the minimum total energy consumption of at least one target device based on the energy flow analysis diagram; and control at least one target device based on the power allocation scheme.

[0056] The energy flow analysis diagram is used to reflect the power consumption value and the energy flow analysis diagram of at least one target device.

[0057] It should be understood that the target devices may include: a compressor, a thermistor (Positive Temperature Coefficient, PTC) heater, a fan, a water pump, a radiator, a heat exchanger, an evaporator, a heater core, an air conditioning system, and a chiller.

[0058] Among them, the energy consumption of the compressor can be calculated by real-time analysis of its input power and operating status to obtain the power consumption value during the cooling or heating process; the PTC heater is responsible for heating the passenger compartment and power battery, and the calculation of its power consumption helps to optimize the thermal management strategy under low-temperature conditions; by analyzing the speed and operating time of the fan and water pump, the power consumption of the two can be calculated, and then their proportion in the overall energy consumption of the thermal management system can be evaluated; combined with the ambient temperature and coolant flow, the heat exchange power (power consumption value) of the radiator and condenser can be calculated to evaluate their heat dissipation efficiency; through the operating status of the compressor and PTC heater, the heat exchange performance of the evaporator and heater core can be analyzed, providing a basis for optimizing the energy consumption of the air-conditioning system; the heat exchange power (power consumption value) of the chiller determines the temperature control effect of the battery. Calculating its heat exchange capacity can optimize the battery's working efficiency and safety.

[0059] Exemplarily, the thermal management control device 120 may be any device capable of controlling a target device, such as an electronic control unit, a vehicle controller, or a central control unit, and this embodiment of the present application does not limit this.

[0060] As a feasible implementation manner, the thermal management system 130 is configured to control the temperature of the vehicle based on at least one target device.

[0061] For ease of understanding, the thermal management control method provided in this application is described in detail below with reference to the accompanying drawings.

[0062] The thermal management control method provided in the embodiment of the present application can be applied to Figure 1 The thermal management control device 120 in the thermal management control system shown in FIG. Figure 2 As shown, the thermal management control method specifically includes the following steps:

[0063] S201: Determine a power consumption value of at least one target device in a thermal management system.

[0064] As a feasible implementation method, the target equipment includes: heat source equipment, refrigeration equipment, and heat exchange equipment.

[0065] It should be understood that heat source equipment is any device that generates heat during the operation of a thermal management system. Heat source equipment includes: batteries, motors, controllers, air conditioning systems, and other devices that continuously release heat during operation due to energy conversion or physical operation.

[0066] Refrigeration equipment is the equipment that dissipates heat during the operation of a thermal management system. Refrigeration equipment includes fans, blowers, compressors, and other devices that can dissipate excess heat through forced convection, phase change cooling, and other methods.

[0067] Heat exchange equipment bridges the gap between different components or media within a thermal management system. Heat exchange equipment, including radiators, condensers, and evaporators, creates heat transfer channels to achieve precise distribution and efficient heat transfer within the thermal management system.

[0068] As a feasible implementation method, the real-time input power value (such as voltage × current) and output power value (such as mechanical work, cooling capacity) of the target device can be synchronously obtained through the acquisition device. The difference between the two is the power consumption value of the target device.

[0069] As another feasible implementation method, the environmental data and operating data of the vehicle may be collected by a collection device, and the power consumption value of the target device may be calculated based on the environmental data and operating data of the vehicle.

[0070] In some embodiments, target devices can be divided into high-voltage accessories and low-voltage accessories. High-voltage accessories include compressors, PTC heaters, and other high-voltage accessories. Low-voltage accessories include fans, water pumps, and blowers. Calculating and outputting the power consumption of high-voltage accessories can help evaluate the energy efficiency of high-power target devices. Calculating and outputting the power consumption of low-voltage devices under target operating conditions can provide a clear power distribution for the overall energy efficiency of the thermal management system.

[0071] S202: Generate an energy flow analysis diagram based on the power consumption value.

[0072] The energy flow analysis diagram is used to reflect the power consumption value and energy flow direction of at least one target device.

[0073] As a feasible implementation method, the power consumption values ​​of the target devices in the thermal management system are integrated and summarized in real time to generate an energy flow analysis diagram for the entire vehicle.

[0074] For example, the energy flow analysis diagram can be the energy flow and heat energy flow direction under heating conditions, such as Figure 3 The figure shows the heat energy transfer path of the thermal management system. Driven by the compressor, the heat pump air-conditioning system transfers the ambient heat absorbed from the environment and the heat input by the PTC heating device to the internal condenser (water-cooled condenser and built-in condenser) through the radiator and chiller; the condenser then distributes the heat to the passenger compartment heating and battery preheating.

[0075] For example, the energy flow analysis diagram can also be the energy flow and heat energy flow direction under the refrigeration condition, such as Figure 4 As shown, the ambient heat absorbed from the passenger compartment and the heat absorbed from the battery through the battery direct cooling plate are transferred to the condenser through the evaporator through the air conditioning cycle under the action of the compressor, and finally released to the external environment by the condenser.

[0076] For example, the energy flow analysis diagram may also be the power consumption value of the target device, such as Figure 5 As shown in the figure, the power consumption values ​​allocated by the battery to thermal management components such as the compressor, fan, water pump, and PTC are intuitively listed. Through quantitative comparison, high-energy-consuming devices in the thermal management system can be accurately located.

[0077] S203: Determine a power allocation scheme that minimizes total energy consumption of at least one target device based on the energy flow analysis diagram.

[0078] The power allocation plan includes: optimal power allocation for target devices, operating parameter thresholds, and collaborative working logic.

[0079] As a feasible implementation approach, based on an energy flow analysis diagram, this approach extracts the power contribution of at least one target device in the thermal management system, energy loss nodes in the energy flow (such as pipeline heat loss and component conversion efficiency degradation points), and the collaborative relationships between different target devices (such as the linkage logic between the compressor and fan, and the energy priority between battery preheating and cabin heating). Using the vehicle's environmental data as constraints and combining the corresponding relationship between the power consumption values ​​and energy efficiency of the target devices, a power allocation solution is determined that meets the thermal management system's requirements while minimizing total energy consumption.

[0080] It should be noted that the power allocation plan can be converted into specific operational suggestions and fed back to the driver. By guiding the driver's operating behavior, the power consumption of target equipment can be indirectly regulated, thereby reducing vehicle energy consumption. For example, operational suggestions include: recommended air conditioning set temperature values, recommended blower gear values, etc.

[0081] As a feasible implementation method, by analyzing the historical power consumption values ​​of target equipment under target operating conditions with the same ambient temperature, speed, and acceleration, we can determine the power allocation plan that minimizes total energy consumption under these target operating conditions. Based on this, we construct a corresponding relationship between the energy flow analysis diagram and the power allocation plan with the lowest total energy consumption. For specific environments and operating conditions, we can associate and store the optimal power allocation plan with the corresponding energy flow path and energy consumption data for each link.

[0082] It should be noted that when determining the minimum power allocation plan for the total energy consumption of at least one target device, it is necessary to use the vehicle's current ambient temperature, speed and acceleration as a benchmark, retrieve and match historical operating conditions consistent with the target operating conditions, and then conduct analysis based on the power data under the historical operating conditions.

[0083] S204: Control at least one target device based on the power allocation solution.

[0084] As a feasible implementation method, the power allocation scheme can be converted into target operating parameters of the target device, and the operation of the target device can be controlled by the target operating parameters.

[0085] The thermal management control method provided in this application determines the power consumption value of at least one target device in the thermal management system. Based on this power consumption value, it generates an energy flow distribution diagram that can intuitively and clearly reflect the power consumption of the target device and the energy flow within the thermal management system, providing a visual analysis basis for energy consumption optimization. The energy flow analysis diagram can be used to deeply analyze the inherent logic of energy distribution and determine the power allocation scheme that minimizes the total energy consumption of the target device. Based on the power allocation scheme, the target device can be precisely controlled, ultimately achieving effective reduction in vehicle energy consumption.

[0086] In some embodiments, the power consumption value of the target device can be determined through data in the vehicle. The above step S201 can be specifically implemented as the following steps: based on the vehicle's environmental data and / or operating data, determine the power consumption value of at least one target device.

[0087] Among them, environmental data includes: ambient temperature and vehicle interior temperature.

[0088] It should be understood that ambient temperature is a key factor affecting the performance of thermal management systems. Accurately measuring and inputting ambient temperature provides the basic environmental conditions for calculating power consumption. Interior temperature is a key indicator of thermal comfort and directly affects the operating status of the air conditioning system. Inputting interior temperature helps analyze the power consumption of the air conditioning system and its impact on the overall vehicle energy efficiency.

[0089] As a feasible implementation method, the operating data includes: speed, acceleration, workload of the heat source equipment, and rotation speed of the refrigeration equipment.

[0090] It should be understood that speed not only determines the vehicle's driving state but also affects the heat transfer capacity of the heat exchange equipment through natural convection and wind resistance. Entering vehicle speed can optimize power allocation under dynamic conditions. Heat source equipment includes components such as the engine, motor, battery, and controller. The workload of these heat source equipment directly affects the energy consumption of the cooling and heat dissipation system. Accurately entering the workload of these heat source equipment can better reflect the load distribution of the thermal management system.

[0091] The speed of the cooling equipment helps understand the operating status of the thermal management system and the energy consumption characteristics of the target equipment. The cooling fan speed is a key variable affecting the cooling system's performance. Entering the fan speed can further calculate its energy consumption and contribution to cooling efficiency. The blower is responsible for air circulation in the passenger compartment, and its speed is directly related to the temperature uniformity in the vehicle and the cooling / heating efficiency of the air conditioning system. The coolant pump, as a core component of the thermal management system, can optimize coolant flow distribution by adjusting its speed, thereby improving heat exchange efficiency. The compressor is a high-energy-consuming component in the air conditioning system. Its speed directly affects the refrigerant flow and cooling effect. Entering the compressor speed can accurately calculate its energy consumption and its impact on the energy efficiency of the entire vehicle.

[0092] As a feasible implementation, vehicle operating data also includes damper opening. This damper opening determines the air circulation pattern in the passenger compartment, which in turn affects the cooling or heating load. Inputting damper opening helps analyze the performance of the thermal management system under different operating conditions.

[0093] As a feasible implementation method, an energy consumption model of the target device is constructed based on its operating data and historical power consumption data. The vehicle's environmental and operating data are then input into the energy consumption model to determine the target device's power consumption. The energy consumption model reflects the correspondence between environmental data, operating data, and power consumption values. The energy consumption model can be trained based on physical formulas or historical environmental and operating data.

[0094] The vehicle's environmental and operating data can be used to more accurately determine the power consumption value of the target device while meeting the vehicle's dynamic operating conditions. Without the need for additional complex measuring equipment, the vehicle's environmental and operating data can be used to accurately capture the energy consumption fluctuations of the target device. This not only reduces the cost and deployment difficulty of the thermal management control system, but also provides a timely and reliable quantitative basis for the power allocation optimization and energy efficiency evaluation of the thermal management system, thereby improving the accuracy and economy of thermal management energy consumption control.

[0095] As a feasible implementation method, the power consumption value of the heat source equipment can be determined by the speed, acceleration and workload of the vehicle, such as Figure 6 As shown, the above step of "determining the power consumption value of at least one target device based on the vehicle's environmental data and / or operating data" can be specifically implemented as follows:

[0096] S601 : Determine the heat dissipation of the heat source device based on the speed, acceleration, and workload of the heat source device.

[0097] As a feasible implementation method, the vehicle's speed, acceleration, and the workload of heat source equipment such as batteries, motors, and controllers are used as input parameters and substituted into the thermodynamic model for calculation to obtain the heat dissipation of each heat source equipment.

[0098] Thermodynamic models are constructed based on the principles of energy conservation and heat transfer to quantify the amount of heat released by target equipment under target operating conditions. Thermodynamic models can be constructed using pre-set rules.

[0099] Exemplarily, when the heat source device is a motor, the preset rules include: calculating the sum of mechanical loss and copper loss based on the output torque, speed and energy efficiency curve of the motor as the heat dissipation of the motor.

[0100] S602: Determine the power consumption value of the heat source device based on the heat dissipation of the heat source device.

[0101] As a feasible implementation method, based on the heat dissipation of the heat source equipment, the energy conservation theorem is used to determine the power consumption value of the heat source equipment.

[0102] Exemplarily, based on the operating data of the heat source equipment, the useful power value of the heat source equipment is determined; based on the heat dissipation of the heat source equipment, the loss power value of the heat source equipment is determined; and the sum of the useful power value and the loss power value is used as the consumed power value of the heat source equipment.

[0103] Speed ​​and acceleration directly reflect the vehicle's dynamic operating intensity. Combined with the workload of heat source equipment, they can capture the source of heat generation, making heat dissipation calculations more accurate to actual operating conditions and reducing errors caused by relying solely on static parameters. No additional complex power sensors are required; power consumption can be derived from existing heat dissipation data, reducing hardware costs. Furthermore, the derivation logic based on thermodynamic principles ensures the stability and consistency of power calculations, providing a reliable data foundation for vehicle energy flow analysis.

[0104] As a feasible implementation method, the power consumption value of the refrigeration equipment can be determined through the correspondence between the rotational speed of the refrigeration equipment and the power consumption value. The above step of "determining the power consumption value of at least one target device based on the vehicle's environmental data and / or operating data" can be specifically implemented as the following steps: determining the power consumption value of the refrigeration equipment based on the rotational speed of the refrigeration equipment and the mapping relationship.

[0105] The mapping relationship represents the corresponding relationship between the rotation speed of the refrigeration equipment and the power consumption value.

[0106] For example, the power consumption values ​​of the refrigeration equipment corresponding to different rotational speeds can be calibrated under target working conditions to form a mapping relationship between rotational speed and power.

[0107] By using the rotational speed and mapping relationship of the refrigeration equipment, the power consumption value of the refrigeration equipment can be determined more quickly and accurately without relying on complex real-time calculation models, which greatly reduces the data processing pressure of the thermal management control system and improves the response speed of energy consumption monitoring.

[0108] As a feasible implementation method, the power consumption value of the heat exchange equipment can be determined by the working status of the heat exchange equipment, such as Figure 7 As shown, the above step of "determining the power consumption value of at least one target device based on the vehicle's environmental data and / or operating data" can be specifically implemented as follows:

[0109] S701. Determine the working status of the heat exchange device based on environmental data and / or operating data.

[0110] As a feasible implementation method, the coolant flow rate and inlet and outlet temperature difference of the heat exchange equipment are determined based on the ambient temperature and operating data.

[0111] For example, based on the matching relationship between the ambient temperature and the heat generation of the heat source (the flow rate needs to be increased at high temperature or high load), combined with the air convection intensity corresponding to the vehicle speed (the higher the vehicle speed, the stronger the convection heat dissipation, and the flow rate can be appropriately reduced), the coolant flow rate is calculated through a preset flow regulation model.

[0112] For example, the inlet and outlet temperature difference of the heat exchanger is derived based on the heat balance relationship between the real-time heat generation of the heat source and the coolant flow rate, combined with the effect of ambient temperature on heat dissipation efficiency. The essence of the heat balance relationship is that the heat generated by the heat source must be promptly removed by the flow of the coolant, and the energy transfer between the two per unit time must maintain a dynamic balance.

[0113] S702: Determine the power consumption value of the heat exchange device based on the working status of the heat exchange device.

[0114] As a feasible implementation approach, the power consumption value is determined through a heat exchange and energy consumption correlation model, using coolant flow rate and inlet and outlet temperature difference as core parameters. The energy consumption correlation model essentially establishes a mapping relationship between operating parameters and energy consumption based on the principles of heat exchange and the operating characteristics of heat exchange equipment. The energy consumption correlation model is calibrated using a combination of theoretical formulas and experimental data.

[0115] Combining environmental data with operational data can overcome the limitations of a single parameter and comprehensively capture the true state of the heat exchange equipment under different operating conditions, thereby reducing the calculation deviation of the power consumption value caused by misjudgment of the state and improving the accuracy of the thermal management control method.

[0116] In some embodiments, the energy flow in the thermal management system can be determined by the power consumption value of each target device, thereby generating an energy flow analysis diagram. Figure 2 ,like Figure 8 As shown, the above step S202 can be specifically implemented as the following steps:

[0117] S801: Determine an energy flow direction between at least one target device based on a power consumption value.

[0118] As a feasible implementation approach, the direction and intensity of energy transfer are determined based on the power consumption value of the target device.

[0119] For example, the roles of target devices in the thermal management system are clarified, including: energy supply end (such as battery, generator), energy conversion end (such as compressor, water pump), and energy consumption end (such as radiator, evaporator).

[0120] Numerical relationships between target devices are established based on their roles in the thermal management system. For example, at the energy conversion end, a portion of the consumed power value is converted into effective energy and transmitted to downstream devices, while the remaining portion is released as loss (such as heat).

[0121] Based on the numerical association relationship between the target devices, an energy flow direction between at least one target device is determined.

[0122] S802: Generate an energy flow analysis diagram based on the power consumption value and energy flow direction.

[0123] As a feasible implementation method, the power consumption value of at least one target device is first standardized and mapped to a unified scale; then each target device is regarded as a node, the connection method between nodes is clarified according to the energy flow direction, and the power consumption value of the corresponding target device is marked at the node to form an energy flow analysis diagram.

[0124] For example, Figure 9 As shown, the energy flow analysis diagram may include: an energy transfer path in a battery circuit, an energy transfer path in a passenger compartment circuit, an energy transfer path in an auxiliary heat exchange circuit, and a power consumption value of a target device.

[0125] The energy transfer path in the battery circuit includes: the heat energy generated by the battery during the charging and discharging process is absorbed by the coolant in the circuit and flows to the water-cooled condenser driven by a water pump; the heat energy carried by the coolant completes heat exchange with the outside world (or other circuit media) in the water-cooled condenser, and after the temperature is reduced, it flows back to the battery, continuously cooling the battery and maintaining its stable operating temperature.

[0126] The energy transfer path within the passenger compartment circuit is as follows: the compressor consumes electrical energy (or mechanical energy) to compress the refrigerant, converting it into a high-temperature, high-pressure gas. The gas then enters the water-cooled condenser and the internal condenser, releasing some heat in the process. The cooled refrigerant flows through the electronic expansion valve (EXV), where it is throttled and reduced in pressure, transforming it into a low-temperature, low-pressure liquid. This liquid then enters the chiller and absorbs external heat (such as heat from other circuits). The refrigerant, having absorbed heat, is then drawn back into the compressor, repeating the cycle and flowing to the water-cooled condenser and the internal condenser. The internal condenser is linked to a blower, which delivers the cooling energy (or heat generated by the reverse cycle) into the passenger compartment, enabling precise temperature regulation.

[0127] The energy transfer path of the auxiliary heat exchange circuit includes: when it is necessary to heat the passenger compartment or dissipate heat for other components, the medium in the chiller (such as coolant) flows driven by the water pump: if heat dissipation is required, the heat energy carried by the medium is released through the radiator (the fan enhances air convection to accelerate heat dissipation); if heating is required, the PTC consumes electrical energy to generate heat energy, which is then heated and transported to the chiller to provide a heat source for the passenger compartment circulation loop; after completing the heat exchange, the medium flows back to the chiller to form a cycle.

[0128] It should be noted that constructing an energy flow analysis diagram reflecting the battery circuit, passenger compartment circuit, and auxiliary heat exchange circuit converts the abstract energy transfer process in the circuit into a concrete graphic language, which makes it easier to distinguish and understand the energy logic of each circuit and helps to conduct energy analysis.

[0129] Power consumption provides a quantitative basis for clarifying the energy flow between target devices, thus forming the core framework of the energy flow analysis diagram. Combining power consumption and energy flow to generate an energy flow analysis diagram can directly visualize the energy use and flow in the thermal management system, providing a concrete reference for energy efficiency analysis.

[0130] In some embodiments, the power allocation scheme is determined by the correspondence between the energy flow analysis diagram and the power allocation scheme. The above step S203 can be specifically implemented as the following steps: based on the energy flow analysis diagram and the preset correspondence, determine the power allocation scheme with the minimum total energy consumption of at least one target device.

[0131] The preset corresponding relationship is used to represent the corresponding relationship between the energy flow analysis diagram and the power allocation scheme.

[0132] As a feasible implementation method, the preset corresponding relationship can be determined by the historical power consumption value of the vehicle under the target working condition, or the preset corresponding relationship can be determined by experimental calibration, which is not limited in the embodiment of the present application.

[0133] Another feasible implementation method is to use collected environmental data, combined with the power consumption values ​​of each target device, to optimize energy consumption and determine the power allocation plan using a built-in offline optimization algorithm. During this process, the thermal management control system strictly adheres to two constraints: first, ensuring that the passenger compartment temperature remains within the set range for comfort, and second, ensuring that all powertrain components operate within a safe and efficient temperature range.

[0134] Among them, the offline optimization algorithm is used to represent the optimization logic and solution strategy obtained based on historical power data, simulation model or offline training, which is pre-integrated in the control module of the thermal management control device.

[0135] Through the energy flow analysis diagram and preset correspondence, the power allocation plan with the minimum total energy consumption of the target equipment is determined. The plan is formulated by considering the energy flow law at the system level, avoiding the imbalance of energy efficiency of the entire vehicle caused by energy saving of a single target equipment. While ensuring the minimum total energy consumption, the coordinated operation efficiency of each target equipment is taken into account, reducing overall energy consumption and improving the economy and reliability of the target equipment.

[0136] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the method. In order to realize the above functions, the thermal management control device includes a hardware structure and / or software module corresponding to the execution of each function. It should be easy to realize that the technical goals in this field are combined with the units and algorithm steps of each example described in the embodiments disclosed in this article, and the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technical goals can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0137] like Figure 10 As shown, the thermal management control device 1000 includes: a processing module 1001 and a control module 1002; the processing module 1001 and the control module 1002; the processing module 1001 is used to determine the power consumption value of at least one target device in the thermal management system; and is also used to generate an energy flow analysis diagram based on the power consumption value; wherein the energy flow analysis diagram is used to reflect the power consumption value and energy flow direction of at least one target device; and is also used to determine a power allocation scheme with the minimum total energy consumption of at least one target device based on the energy flow analysis diagram; the control module 1002 is used to control at least one target device based on the power allocation scheme.

[0138] Furthermore, the processing module 1001 is specifically configured to determine a power consumption value of at least one target device based on the environmental data and / or operating data of the vehicle.

[0139] Furthermore, the target device includes a heat source device that generates heat during operation; the operating data includes: speed, acceleration and workload of the heat source device; the processing module 1001 is specifically used to determine the heat dissipation of the heat source device based on the speed, acceleration and workload of the heat source device; and determine the power consumption value of the heat source device based on the heat dissipation of the heat source device.

[0140] Furthermore, the target device includes a refrigeration device; the operating data includes the rotational speed of the refrigeration device; the processing module 1001 is specifically used to determine the power consumption value of the refrigeration device based on the rotational speed of the refrigeration device and the mapping relationship; wherein the mapping relationship represents the correspondence between the rotational speed of the refrigeration device and the power consumption value.

[0141] Furthermore, the target device includes a heat exchange device; the processing module 1001 is specifically used to determine the working state of the heat exchange device based on environmental data and / or operation data; and determine the power consumption value of the heat exchange device based on the working state of the heat exchange device.

[0142] Furthermore, the processing module 1001 is specifically configured to determine an energy flow direction between at least one target device based on the power consumption value; and generate an energy flow analysis diagram based on the power consumption value and the energy flow direction.

[0143] Furthermore, the processing module 1001 is specifically used to determine a power allocation scheme with the minimum total energy consumption of at least one target device based on the energy flow analysis diagram and a preset correspondence; wherein the preset correspondence is used to represent the correspondence between the energy flow analysis diagram and the power allocation scheme.

[0144] like Figure 11 As shown, the electronic device 1100 includes but is not limited to: a processor 1101 and a memory 1102 .

[0145] The memory 1102 is configured to store executable instructions of the processor 1101. It is understood that the processor 1101 is configured to execute instructions to implement the thermal management control method in the above embodiment.

[0146] It should be noted that those skilled in the art can understand that Figure 11 The structure of the electronic device 1100 shown in FIG. 1 does not limit the electronic device 1100. The electronic device 1100 may include Figure 11 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0147] The processor 1101 is the control center of the electronic device 1100. It connects the various parts of the entire electronic device 1100 using various interfaces and lines. By running or executing software programs and / or modules stored in the memory 1102 and calling data stored in the memory 1102, it performs various functions of the electronic device 1100 and processes data, thereby monitoring the electronic device 1100 as a whole. The processor 1101 may include one or more processing units. Optionally, the processor 1101 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly handles wireless communications. It is understood that the above-mentioned modem processor may not be integrated into the processor 1101.

[0148] Memory 1102 can be used to store software programs and various data. Memory 1102 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and application programs required by at least one functional module (e.g., a determination unit, a processing unit, etc.). Furthermore, memory 1102 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage device.

[0149] In an exemplary embodiment, a computer-readable storage medium including instructions is further provided, such as a memory 1102 including instructions. The instructions can be executed by the processor 1101 of the electronic device 1100 to implement the thermal management control method in the above embodiment.

[0150] In actual implementation, Figure 10 The functions of the processing module 1001 and the control module 1002 can be represented by Figure 11 The processor 1101 in the embodiment calls the computer program stored in the memory 1102. The specific execution process can be referred to the description of the method part in the above embodiment, which will not be repeated here.

[0151] Optionally, the computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, the non-temporary computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0152] In an exemplary embodiment, the present application also provides a computer program product including one or more instructions, which can be executed by the processor 1101 of the electronic device 1100 to implement the thermal management control method in the above embodiment.

[0153] It should be noted that when the instructions in the above-mentioned computer-readable storage medium or one or more instructions in the computer program product are executed by the processor of the electronic device, the various processes of the above-mentioned method embodiment are implemented and the same technical effect as the above-mentioned method can be achieved. To avoid repetition, they will not be repeated here.

[0154] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete the full classification or partial functions described above.

[0155] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0156] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0157] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0158] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the full classification part or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute the full classification part or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks or optical disks.

[0159] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A thermal management control method, characterized in that: The method comprises: determining a power consumption value of at least one target device in the thermal management system; Based on the power consumption value, an energy flow analysis diagram is generated; wherein the energy flow analysis diagram is used to reflect the power consumption value and energy flow direction of the at least one target device; Determining, based on the energy flow analysis diagram, a power allocation scheme that minimizes total energy consumption of the at least one target device; Based on the power allocation scheme, the at least one target device is controlled.

2. The thermal management control method according to claim 1, characterized in that: Determining the power consumption value of at least one target device in the thermal management system includes: Based on the environmental data and / or the operating data of the vehicle, a power consumption value of the at least one target device is determined.

3. The thermal management control method according to claim 2, characterized in that: The target device includes a heat source device that generates heat during operation; the operation data includes: speed, acceleration, and workload of the heat source device; and determining the power consumption value of the at least one target device based on the vehicle's environmental data and / or operation data includes: determining a heat dissipation amount of the heat source device based on the speed, the acceleration, and the workload of the heat source device; The power consumption value of the heat source device is determined based on the heat dissipation of the heat source device.

4. The thermal management control method according to claim 2, wherein: The target device includes a refrigeration device; the operating data includes a rotational speed of the refrigeration device; and determining the power consumption value of the at least one target device based on the vehicle environment data and / or operating data includes: Based on the rotation speed of the refrigeration device and the mapping relationship, the power consumption value of the refrigeration device is determined; wherein the mapping relationship represents the corresponding relationship between the rotation speed of the refrigeration device and the power consumption value.

5. The thermal management control method according to claim 2, wherein: The target device includes a heat exchange device; and determining the power consumption value of the at least one target device based on the environmental data and / or operating data of the vehicle includes: Determining the operating state of the heat exchange device based on the environmental data and / or the operating data; Based on the working state of the heat exchange device, a power consumption value of the heat exchange device is determined.

6. The thermal management control method according to claim 1, characterized in that: The generating of an energy flow analysis diagram based on the power consumption value includes: determining an energy flow between the at least one target device based on the power consumption value; An energy flow analysis diagram is generated based on the power consumption value and the energy flow direction.

7. The thermal management control method according to claim 1, characterized in that: The determining, based on the energy flow analysis diagram, a power allocation scheme that minimizes the total energy consumption of the at least one target device includes: Based on the energy flow analysis diagram and the preset corresponding relationship, a power allocation scheme with the minimum total energy consumption of the at least one target device is determined; wherein the preset corresponding relationship is used to represent the corresponding relationship between the energy flow analysis diagram and the power allocation scheme.

8. A thermal management control device, characterized in that: include: Processing module and control module; The processing module is used to determine the power consumption value of at least one target device in the thermal management system; further configured to generate an energy flow analysis diagram based on the power consumption value; wherein the energy flow analysis diagram is configured to reflect the power consumption value and energy flow direction of the at least one target device; further configured to determine, based on the energy flow analysis diagram, a power allocation scheme that minimizes the total energy consumption of the at least one target device; The control module is configured to control the at least one target device based on the power allocation scheme.

9. A thermal management control system, characterized in that: include: Acquisition equipment, thermal management control equipment and thermal management system; The collection device is used to collect environmental data and / or operating data of the vehicle; The thermal management control device is configured to determine a power consumption value of at least one target device in the thermal management system; generate an energy flow analysis diagram based on the power consumption value; wherein the energy flow analysis diagram is configured to reflect the power consumption value and energy flow direction of the at least one target device; determine a power allocation scheme that minimizes the total energy consumption of the at least one target device based on the energy flow analysis diagram; and control the at least one target device based on the power allocation scheme; The thermal management system is configured to control the temperature of the vehicle based on the at least one target device.

10. An electronic device, characterized in that: include: processor and memory; The memory stores instructions executable by the processor; When the processor is configured to execute the instructions, the electronic device implements the thermal management control method according to any one of claims 1 to 7.

11. A vehicle, characterized in that: Comprising the electronic device as claimed in claim 10.

12. A computer-readable storage medium, characterized in that When the computer-executable instructions stored in the computer-readable storage medium are executed by a processor of a vehicle, the vehicle can execute the thermal management control method according to any one of claims 1 to 7.

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