Vehicle-based thermal management system and method, vehicle and storage medium

Abstract

The invention discloses a thermal management system and method based on a vehicle, the vehicle and a storage medium, and the system comprises a thermal management sensing subsystem which is used for obtaining a to-be-tested signal, and the to-be-tested signal is a function signal of the thermal management sensing subsystem; the thermal management control subsystem is used for determining a test flow according to the signal to be tested; and the thermal management execution subsystem is used for testing the thermal management sensing subsystem according to the test process. The technical problem that in the prior art, due to the fact that a vehicle thermal management system is complex, a vehicle failure mode is difficult to solve is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic control, and in particular, to a vehicle-based thermal management system, method, vehicle, and storage medium. Background Art

[0002] With the global control of carbon emissions becoming stricter, new energy vehicles, as a means of travel with low carbon emissions, have attracted increasing attention. Electronic components such as power batteries and motor drive systems of new energy vehicles generate a large amount of heat during operation, and need to be thermally managed through a thermal management system to both reduce the system temperature and improve the system efficiency. During use, the thermal management system of new energy vehicles may have adverse effects on battery performance due to failure modes such as sensor failures, software logic errors, actuator failures, and foreign object intrusion, thereby affecting the life and safety of new energy vehicle batteries. Therefore, it is necessary to conduct a failure mode analysis of the thermal management system of new energy vehicles to improve its performance and reliability.

[0003] Failure Mode and Effects Analysis (hereinafter referred to as FEMA) is a series of activities carried out during the product design stage and process design stage. Each subsystem, part, and each process that makes up the process are analyzed one by one to find potential failure modes and analyze their possible consequences, so as to take necessary measures in advance to improve the quality and reliability of the product. FEMA starts before product design and manufacturing process development activities and guides the implementation throughout the entire product cycle. In the field of vehicle FEMA, FEMA is increasingly applied to the development of structural components.

[0004] Currently, vehicles generally use FEMA to identify structural design defects and can identify potential failure modes and their impacts at the design stage. However, in the prior art, the thermal management system of new energy pure electric vehicles is complex, the number of electrical components is large, and the failure modes and their impacts are complicated. Therefore, the structural FEMA analysis method is no longer applicable to this situation.

[0005] In response to the above problems, no effective solution has been proposed yet. Summary of the Invention

[0006] Embodiments of the present invention provide a vehicle-based thermal management system, method, vehicle, and storage medium, so as to at least solve the technical problem in the prior art that it is difficult to solve vehicle failure modes due to the complexity of the vehicle thermal management system.

[0007] According to one embodiment of the present invention, a vehicle-based thermal management system is provided, including: a thermal management sensing subsystem for obtaining a signal to be tested, where the signal to be tested is a functional signal of the thermal management sensing subsystem; a thermal management control subsystem for determining a test process according to the signal to be tested; and a thermal management execution subsystem for testing the thermal management sensing subsystem according to the test process.

[0008] Optionally, the vehicle-based thermal management system further includes: a battery operating mode management system for obtaining a battery operating mode signal of the battery; a battery water temperature sensor for obtaining a water temperature signal inside the battery; an ambient temperature sensor for obtaining an external temperature signal of the target vehicle; and a vehicle speed sensor for obtaining a vehicle speed signal of the target vehicle.

[0009] Optionally, the vehicle-based thermal management system further includes: a vehicle controller for obtaining preset test parameters corresponding to the signal to be tested, where the preset test parameters include a preset battery operating mode, a preset battery water temperature, a preset ambient temperature, and a preset vehicle speed; and a thermal management function module for determining a test process according to the preset test parameters.

[0010] Optionally, the vehicle-based thermal management system further includes: a receiving module for receiving the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal sent by the thermal management sensing subsystem; a calculation module for determining preset test parameters corresponding to the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal; and a sending module for sending the preset test parameters to the thermal management function module and sending the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal to the thermal management execution subsystem.

[0011] According to one embodiment of the present invention, a method for testing a vehicle-based thermal management system is further provided, including: obtaining a signal to be tested, where the signal to be tested is a functional signal of the thermal management sensing subsystem; determining a test process according to the signal to be tested; and testing the thermal management sensing subsystem according to the test process.

[0012] Optionally, the method for testing a vehicle-based thermal management system further includes: obtaining preset test parameters corresponding to the signal to be tested; determining a parameter to be tested according to the test process; comparing the parameter to be tested with the preset test parameters to obtain a comparison result; and testing the thermal management sensing subsystem based on the comparison result.

[0013] Optionally, the method for testing a vehicle-based thermal management system further includes: in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters, determining that the test of the thermal management sensing subsystem is successful; and in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters, determining that the test of the thermal management sensing subsystem fails.

[0014] According to one embodiment of the present invention, there is also provided a test device for a vehicle-based thermal management system, including: an acquisition module configured to acquire a signal to be tested, where the signal to be tested is a functional signal of a thermal management sensing subsystem; a determination module configured to determine a test process according to the signal to be tested; and a test module configured to test the thermal management sensing subsystem according to the test process.

[0015] Optionally, the test module includes: an acquisition unit configured to acquire preset test parameters corresponding to the signal to be tested; a first determination unit configured to determine the parameter to be tested according to the test process; a comparison unit configured to compare the parameter to be tested with the preset test parameters to obtain a comparison result; and a test unit configured to test the thermal management sensing subsystem based on the comparison result.

[0016] Optionally, the test unit includes: a first determination subunit configured to determine that the test of the thermal management sensing subsystem is successful in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters; and a second determination subunit configured to determine that the test of the thermal management sensing subsystem fails in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters.

[0017] According to one embodiment of the present invention, there is also provided a vehicle, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the test method for the vehicle-based thermal management system in any one of the above.

[0018] According to one embodiment of the present invention, there is also provided an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the test method for the vehicle-based thermal management system in any one of the above.

[0019] According to one embodiment of the present invention, there is also provided a non-volatile storage medium, in which a computer program is stored, where the computer program is configured to execute the test method for the vehicle-based thermal management system in any one of the above when running.

[0020] According to one embodiment of the present invention, there is also provided a computer program product, in which a computer program is stored, where the computer program implements the steps of the test method for the vehicle-based thermal management system in any one of the above when executed by a processor.

[0021] In an embodiment of the present invention, a to-be-tested signal is obtained, where the to-be-tested signal is a functional signal of a thermal management sensing subsystem, achieving the purpose of determining a test process according to the to-be-tested signal, thereby achieving the technical effect of testing the thermal management sensing subsystem according to the test process, and further solving the technical problem in the prior art that it is difficult to solve the vehicle failure mode due to the complexity of the vehicle thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 is a structural block diagram of a vehicle-based thermal management system according to an embodiment of the present invention;

[0024] Figure 2 is a flowchart of a test method for a vehicle-based thermal management system according to an embodiment of the present invention;

[0025] Figure 3 is a structural block diagram of a test device for a vehicle-based thermal management system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0028] According to an embodiment of the present invention, an embodiment of a vehicle-based thermal management system is provided. It should be noted that the steps illustrated in the flowchart of the accompanying drawings can be executed in a computer system including at least a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0029] This method embodiment can also be executed in an electronic device including a memory and a processor, a similar control device, or an in-vehicle terminal. Taking the in-vehicle terminal as an example, the in-vehicle terminal can include one or more processors and a memory for storing data. Optionally, the above in-vehicle terminal can also include a communication device for communication functions and a display device. Those of ordinary skill in the art can understand that the above structural description is only illustrative and does not limit the structure of the above in-vehicle terminal. For example, the in-vehicle terminal can also include more or fewer components than the above structural description, or have a configuration different from the above structural description.

[0030] The processor can include one or more processing units. For example: the processor can include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microprocessor, a field-programmable gate array (FPGA), a neural-network processing unit (NPU), a tensor processing unit (TPU), a processing device of an artificial intelligent (AI) type processor, etc. Among them, different processing units can be independent components or integrated in one or more processors. In some instances, the electronic device can also include one or more processors.

[0031] The memory can be used to store computer programs, for example, store the computer program corresponding to the vehicle-based thermal management system in the embodiment of the present invention. The processor realizes the above vehicle-based thermal management system by running the computer program stored in the memory. The memory can include a high-speed random access memory and can also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memories. In some instances, the memory can further include a memory remotely set relative to the processor, and these remote memories can be connected to the electronic device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and their combinations.

[0032] A communication device is used to receive or transmit data via a network. Specific examples of the above-mentioned network may include a wireless network provided by the communication provider of the mobile terminal. In one example, the communication device includes a network interface controller (NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the communication device can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly. In some embodiments of this solution, the communication device is used to connect to mobile devices such as mobile phones and tablets, and can send instructions to the vehicle-mounted terminal through the mobile device.

[0033] The display device can be a touch-screen liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display enables the user to interact with the user interface of the vehicle-mounted terminal. In some embodiments, the above vehicle-mounted terminal has a graphical user interface (GUI), and the user can perform human-computer interaction with the GUI through finger contacts and / or gestures on the touch-sensitive surface. Here, the human-computer interaction function can include a vehicle gear shifting function, and the executable instructions for performing the above human-computer interaction function are configured / stored in a computer program product or a readable storage medium executable by one or more processors.

[0034] Figure 1 is a structural block diagram 100 of a vehicle-based thermal management system according to an embodiment of the present invention, as Figure 1 shown, the system includes: a thermal management sensing subsystem 101, a thermal management control subsystem 102, and a thermal management execution subsystem 103.

[0035] The thermal management sensing subsystem 101 is used to obtain a signal to be tested, where the signal to be tested is a functional signal of the thermal management sensing subsystem.

[0036] Specifically, the above thermal management sensing subsystem includes a battery inlet water temperature sensor, an ambient temperature sensor, a vehicle speed sensor, and a battery fast charge signal sensor.

[0037] Specifically, the thermal management sensing subsystem includes a battery target water temperature signal, an ambient temperature sensor signal, a vehicle speed sensor signal, and a battery fast charge signal generated by multiple sensors.

[0038] Optionally, the above battery fast charge signal is used to indicate whether the battery of the target vehicle is in a fast charge state.

[0039] The thermal management control subsystem 102 is used to determine the test process according to the signal to be tested.

[0040] Specifically, the thermal management control subsystem includes the thermal management function specification and the thermal management software on the vehicle controller.

[0041] Specifically, the thermal management control subsystem is used to determine the test process according to the signal to be tested obtained within the above-mentioned thermal management sensing subsystem.

[0042] Optionally, if the signal to be tested is the battery inlet water temperature signal, the thermal management control subsystem can design a test process for testing the battery inlet water temperature according to the received battery inlet water temperature signal.

[0043] The thermal management execution subsystem 103 is used to test the thermal management sensing subsystem according to the test process.

[0044] Specifically, the thermal management execution subsystem includes a water pump, an electric heater, an electric fan, a radiator, an expansion tank, and a battery water-cooling plate.

[0045] Specifically, the thermal management execution subsystem is used to test the thermal management function in the thermal management sensing subsystem according to the test process of thermal management.

[0046] Specifically, the present application provides a method for analyzing the failure modes and effects of the thermal management system of a new energy pure electric vehicle based on electronic control logic, including dividing the thermal management system into a thermal management sensing subsystem, a thermal management control subsystem, and a thermal management execution subsystem. The thermal management sensing subsystem collects real-time data such as temperature and pressure, the thermal management control subsystem is responsible for data analysis and strategy decision-making, and the thermal management execution subsystem receives instructions and adjusts the working state of the thermal management components. Signal transmission and functional interaction analysis are carried out among the thermal management sensing subsystem, the thermal management control subsystem, and the thermal management execution subsystem to determine the communication protocol, data flow, and control logic between the subsystems, as well as the impact of these interactions on the system stability and efficiency.

[0047] Optionally, through a hierarchical architecture, the present application achieves fine-grained management of the internal communication protocol, data flow, and control logic of the thermal management system, ensuring the stability and efficiency of the system under complex working conditions. Specifically, the data collected by the sensors of the thermal management sensing subsystem (such as the battery inlet water temperature sensor and the ambient temperature sensor) is the basis for the decision-making of the thermal management system. The thermal management control subsystem generates corresponding control instructions, such as adjusting the pump speed or turning on the electric heater, based on this data and in combination with the preset function specifications. After receiving the instructions, the thermal management execution subsystem executes precisely. For example, the pump changes its operating state according to the instructions, thereby affecting the efficiency of the battery cooling cycle. This hierarchical design realizes the efficient cooperation of the components within the thermal management system and solves the problem of system instability caused by signal transmission delay, data error, and control failure in the traditional thermal management system. This technical feature is not limited to the hierarchical architecture mentioned above and also includes the optimization of the communication protocol between subsystems, such as using the CAN bus communication with strong real-time performance to ensure the rapid and accurate transmission of data.

[0048] It is worth noting that by carefully dividing the hierarchical structure of the thermal management system, the present application realizes precise control and monitoring of the thermal management process. For example, the battery inlet water temperature sensor of the thermal management sensing subsystem can continuously monitor the temperature of the battery coolant. Once an abnormal temperature is detected, it immediately reports to the thermal management control subsystem and triggers the corresponding cooling strategy. The thermal management software of the thermal management control subsystem intelligently adjusts the thermal management strategy based on the battery state information provided by the battery management system, combined with the vehicle speed and ambient temperature. For example, it increases the heat dissipation efficiency of the radiator in a high-temperature environment or activates the electric heater in a low-temperature environment to maintain the optimal working temperature of the battery. Components such as the pump and electric fan of the thermal management execution subsystem dynamically adjust their working states according to the instructions of the planning and control layer to ensure the effective execution of the thermal management strategy. This hierarchical design not only solves the problem of inaccurate battery temperature control in the thermal management system but also improves the response speed and adaptability of the system, providing a guarantee for the stable operation of the vehicle in various environments.

[0049] Compared with the prior art, the method of the present application significantly improves the analysis depth and breadth of the thermal management system of new energy pure electric vehicles. Through hierarchical analysis and fault hypothesis, potential failure modes and their consequences can be identified more accurately. This method not only helps to detect problems early, but also guides the design improvement and the formulation of fault response strategies, thus significantly enhancing the reliability and safety of the system. In practical applications, this method helps to reduce the failure rate of the thermal management system, extend the system life, improve the overall performance and user experience of the vehicle. Especially in extreme climate conditions and high-intensity usage scenarios, its advantages are more obvious. In addition, by optimizing the sensor layout and the control strategy of the execution components, the response speed and adaptability of the thermal management system are improved, enabling the vehicle to maintain the best thermal management state under various working conditions, thereby enhancing the energy utilization efficiency and driving safety.

[0050] The above system of this embodiment will be further introduced in detail below.

[0051] As an alternative implementation, the signal to be tested includes a battery operating mode signal, a water temperature signal, an external temperature signal, and a vehicle speed signal. The target vehicle includes a battery. The thermal management sensing subsystem includes: a battery operating mode management system for obtaining the battery operating mode signal of the battery; a battery water temperature sensor for obtaining the water temperature signal inside the battery; an ambient temperature sensor for obtaining the external temperature signal of the target vehicle; and a vehicle speed sensor for obtaining the vehicle speed signal of the target vehicle.

[0052] In this embodiment, the signals to be tested in the above thermal management sensing subsystem include a battery operating mode signal, a water temperature signal, an external temperature signal, and a vehicle speed signal. The thermal management sensing subsystem includes a battery operating mode management system for obtaining the battery operating mode signal of the battery, a battery water temperature sensor for obtaining the water temperature signal inside the battery, an ambient temperature sensor for obtaining the external temperature signal of the target vehicle, and a vehicle speed sensor for obtaining the vehicle speed signal of the target vehicle.

[0053] As an alternative implementation, the thermal management control subsystem includes: a vehicle controller for obtaining the preset test parameters corresponding to the signals to be tested, where the preset test parameters include a preset battery operating mode, a preset battery water temperature, a preset ambient temperature, and a preset vehicle speed; a thermal management function module for determining the test process according to the preset test parameters.

[0054] In this embodiment, the thermal management control subsystem further includes: a vehicle controller for obtaining the preset test parameters corresponding to the signals to be tested, where the preset test parameters include a preset battery operating mode, a preset battery water temperature, a preset ambient temperature, and a preset vehicle speed, and a thermal management function module for determining the test process according to the preset test parameters.

[0055] Specifically, the vehicle controller plays a core role in electric vehicles and hybrid vehicles. Its main functions include:

[0056] 1) Vehicle coordination control: The vehicle controller is responsible for coordinating the work of each subsystem, including the battery management system (BMS), motor controller, transmission controller, etc., to ensure the coordination and efficiency of vehicle operation.

[0057] 2) Energy management: By optimizing the working states of the battery and motor, it realizes the efficient utilization of energy and extends the driving range.

[0058] 3) Driving mode management: Supports multiple driving modes (such as economy, sport, etc.) and adjusts vehicle performance according to the driver's needs.

[0059] 4) Fault diagnosis and safety monitoring: Monitors the vehicle status in real time, detects and diagnoses faults, and ensures the safety and reliability of the vehicle.

[0060] 5) Communication management: As the hub of information interaction, the vehicle controller is responsible for information transmission and data exchange between different electronic control units (ECUs).

[0061] 6) Kinetic energy recovery: Controls the reverse power generation function of the motor during braking, converts kinetic energy into electrical energy and recovers it to the battery to improve energy utilization efficiency.

[0062] As an optional implementation, the vehicle controller further includes: a receiving module for receiving the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal sent by the thermal management sensing subsystem; a calculation module for determining the preset test parameters corresponding to the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal; a sending module for sending the preset test parameters to the thermal management function module and sending the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal to the thermal management execution subsystem.

[0063] In this embodiment, the vehicle controller further includes: a receiving module for receiving the signals of the thermal management sensing subsystem into the thermal management control subsystem, that is, receiving the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal sent by the thermal management sensing subsystem; a calculation module for determining the preset test parameters corresponding to the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal; a sending module for sending the signals received by the thermal management control subsystem to the thermal management execution subsystem, that is, sending the preset test parameters to the thermal management function module and sending the battery working mode signal, water temperature signal, external temperature signal and vehicle speed signal to the thermal management execution subsystem.

[0064] Specifically, signal transmission and functional interaction analysis cover evaluating the compatibility of communication protocols between layers, the real-time nature of data streams, and the accuracy of control logic. Meanwhile, the impacts of communication latency, data errors, and control failures on the thermal management system are analyzed. The signal transmission and functional interaction analysis between the thermal management system and external boundaries, including the battery management system, vehicle controller, high-voltage distribution box, low-voltage distribution box, user usage or road conditions, environment, production, or assembly, further involves the impacts of these factors on the effectiveness and reliability of the thermal management system.

[0065] Optionally, in this application, by deeply analyzing the interactions within the thermal management system and with external boundaries, the overall effectiveness and reliability of the system are significantly enhanced. For example, in the interaction with the battery management system, the thermal management system can promptly respond to the battery fast-charging signal, quickly adjust the cooling strategy, and prevent the battery from overheating, thus solving the problem of the sharp rise in battery temperature during fast charging. Meanwhile, through close cooperation with the vehicle controller, the thermal management system can intelligently adjust the working intensity of the radiator and fan according to the vehicle speed and driving mode, reducing unnecessary energy consumption and improving energy utilization efficiency. In addition, considering the uncertainties in the production and assembly process, this application also designs flexible control logic, which can ensure the normal operation of the thermal management system through algorithm compensation even when the sensor installation position is not ideal. This comprehensive consideration of internal and external interactions not only solves the adaptability problem of the thermal management system under complex working conditions but also realizes a double improvement in system stability and efficiency through the mutual cooperation of various technical features.

[0066] It is worth noting that when analyzing the internal interactions of the thermal management test system, it is necessary to assume that there are no faults in the external boundaries. When analyzing the external boundary interactions, it is necessary to assume that there are no faults inside the thermal management system, so as to separate and clearly define the internal and external analysis environments and improve the accuracy and efficiency of the analysis. The fault-free state assumption verifies the system performance under a single fault through fault injection experiments or simulation simulations and conducts a stress test on the thermal management system to ensure the rationality of the analysis environment.

[0067] Optionally, by setting the fault-free state assumption, the present application realizes the independent analysis of the internal and external interactions of the thermal management system, significantly improving the accuracy and efficiency of the failure mode and effect analysis. In the internal interaction analysis, it is assumed that the external boundaries such as the battery management system and the vehicle controller are in normal working states, and the focus is on studying the failure modes of the internal components (such as sensors and actuators) of the thermal management system and their impacts on the system. For example, when the water pump suddenly stops working, how the system quickly switches to the standby cooling strategy to avoid the out-of-control of the battery temperature. In the external boundary interaction analysis, it is assumed that there are no faults inside the thermal management system, and the focus is on examining the impacts of external factors (such as user usage habits and road condition changes) on the performance of the thermal management system. For example, under extreme temperature conditions, how to adjust the thermal management strategy to adapt to environmental changes while ensuring the safety of the battery. This analysis method not only solves the problem of fuzzy boundary conditions in traditional fault analysis, but also verifies the performance of the system under single faults through fault injection experiments and simulation, ensuring the stability and safety of the thermal management system in the face of emergencies.

[0068] Figure 2 is a flowchart of a test method for a vehicle-based thermal management system according to an embodiment of the present invention, as Figure 2 shown, and the method includes the following steps:

[0069] Step S202, obtain a signal to be tested, where the signal to be tested is a functional signal of the thermal management perception subsystem.

[0070] Optionally, the execution subject of this embodiment is a thermal management system test controller. It should be noted that other electronic devices and processors can also be used as the execution subject, and no more limitations are made here.

[0071] In the technical solution provided in step S202 of the present invention above, the thermal management system test controller needs to first obtain the functional signals of the thermal management perception subsystem inside the thermal management system.

[0072] Specifically, the above functional signals include a battery working mode signal, a water temperature signal, an external temperature signal, and a vehicle speed signal.

[0073] Specifically, the above multiple functional signals are obtained by multiple corresponding functional sensors.

[0074] Specifically, study the impacts of the measurement accuracy, response time, and signal transmission method of the sensors in the thermal management perception subsystem on the decision-making of the planning and control layer, optimize the layout and selection of the sensors, and improve the overall perception ability and response speed of the thermal management system. Particularly emphasize the sensitivity of the ambient temperature sensor and the data transmission rate of the battery inlet water temperature sensor to ensure the normal operation of the thermal management system under extreme temperature conditions.

[0075] Optionally, by optimizing the sensor layout and selection, the present application significantly improves the perception ability and response speed of the thermal management system, ensuring the stable operation of the system under extreme temperature conditions. The measurement accuracy and response time of the sensors are directly related to the accuracy and timeliness of the thermal management system's decision-making. For example, the high-sensitivity design of the ambient temperature sensor enables it to quickly capture external temperature changes and promptly notify the planning and control layer to adjust the cooling strategy. For instance, the radiator is turned on in advance in a high-temperature environment to reduce the risk of battery temperature rise. The optimization of the data transmission rate of the battery inlet water temperature sensor ensures that the thermal management system can monitor the temperature of the coolant in real time. Once an anomaly is detected, immediate action is taken, such as increasing the pump speed to enhance the cooling effect. This optimization of the sensor layout and selection not only solves the problem of the slow response of the thermal management system to external environmental changes but also enhances the overall perception ability of the system by improving the data transmission efficiency, providing a solid guarantee for the safe driving of the vehicle under extreme climate conditions.

[0076] Step S204: Determine the test process according to the signal to be tested.

[0077] In the technical solution provided in step S204 of the present invention, after the thermal management system test controller determines the signal to be tested, it is also necessary to determine the test process corresponding to the signal to be tested according to the signal to be tested.

[0078] For example, if the signal to be tested is the battery inlet water temperature signal, the test process designed by the thermal management system test controller is to collect the temperature value corresponding to the battery inlet water, and compare this temperature value with the calibrated temperature of the battery inlet water stored in the vehicle controller in the thermal management control subsystem to verify whether the battery inlet water temperature meets the preset requirement range.

[0079] Step S206: Test the thermal management perception subsystem according to the test process.

[0080] In the technical solution provided in step S206 of the present invention, after the thermal management system test controller obtains the corresponding test process, it can test multiple functional signals in the thermal management perception subsystem according to the corresponding test process.

[0081] Specifically, the design improvement measures and fault response strategies of the test process include hardware redundancy design, software fault tolerance mechanism, fault isolation measures, and maintenance procedures to improve the reliability and maintainability of the system. For the actuating components in the thermal management system execution subsystem, analyze their working states and fault modes under different working conditions and their impacts on the vehicle's thermal management performance, and optimize the control strategies and system integration design of the actuating components.

[0082] Optionally, by introducing hardware redundancy design, software fault tolerance mechanism, fault isolation measures, and maintenance procedures, the present application greatly improves the reliability and maintainability of the new energy pure electric vehicle thermal management system. For example, the water pump in the execution layer adopts a dual-pump redundancy design. When the main pump fails, the standby pump can be immediately started to ensure the uninterrupted cooling cycle, solving the problem of system failure caused by the failure of key execution components. At the software level, the thermal management software is built with a fault tolerance algorithm, which can automatically adjust the control strategy when the data stream is interrupted or the sensor readings are abnormal, such as enabling a preset safe temperature range to ensure that the battery will not be damaged due to out-of-control thermal management. In addition, fault isolation measures such as circuit protection devices can quickly cut off the connection with the thermal management system when a fault occurs in the high-voltage distribution box, preventing the spread of the fault and protecting other parts of the system from being affected. The comprehensive application of these design improvements and fault response strategies not only solves the stability problem of the thermal management system under complex working conditions but also improves the overall performance and user experience of the thermal management system through the optimization of the system integration design. Especially in extreme climate conditions and high-intensity usage scenarios, its advantages are more significant.

[0083] From the above steps S202 to S206, it can be known that in the present invention, by obtaining the signal to be tested, where the signal to be tested is the functional signal of the thermal management sensing subsystem, the purpose of determining the test process according to the signal to be tested is achieved, thereby achieving the technical effect of testing the thermal management sensing subsystem according to the test process, and further solving the technical problem in the prior art that it is difficult to solve the vehicle failure mode due to the complexity of the vehicle thermal management system.

[0084] As an optional implementation manner, testing the thermal management sensing subsystem according to the test process includes: obtaining the preset test parameters corresponding to the signal to be tested; determining the parameter to be tested according to the test process; comparing the parameter to be tested with the preset test parameters to obtain a comparison result; and testing the thermal management sensing subsystem based on the comparison result.

[0085] In this embodiment, the thermal management system test controller testing the thermal management sensing subsystem according to the test process includes the following steps: The thermal management system test controller first needs to obtain the preset test parameters corresponding to the signal to be tested, then determine the parameter to be tested according to the test process corresponding to the signal to be tested, then compare the parameter to be tested with the preset test parameters stored in the vehicle controller to obtain a comparison result, and test the thermal management sensing subsystem based on the comparison result.

[0086] Specifically, based on the interaction analysis between the thermal management system and the external boundary, the functional specifications of the thermal management system are designed and calibrated to ensure that the thermal management system can operate stably under complex working conditions and meet the vehicle's thermal management requirements. Particular attention is paid to the coordination between the battery management and the vehicle controller, and the response strategies of the thermal management system under fast charging and slow charging conditions of the vehicle are evaluated to ensure the effectiveness and stability of the thermal management system.

[0087] Optionally, in this application, by carefully designing and calibrating the functional specifications of the thermal management system, the stable operation and efficient response of the system under complex working conditions are achieved. The design of the functional specifications fully considers the coordination between the thermal management system and external boundaries, such as the battery management system and the vehicle controller, ensuring that the response strategies of the thermal management system under fast charging and slow charging conditions not only meet safety standards but also energy efficiency requirements. For example, under fast charging conditions, the thermal management system can quickly identify the rising trend of battery temperature and activate the cooling strategy in advance to prevent the battery from overheating, solving the temperature control problem during fast charging. At the same time, the low-power mode design under slow charging conditions reduces unnecessary energy consumption and improves energy utilization efficiency. This customized design of the functional specifications not only solves the adaptability problem of the thermal management system under different charging modes but also, through close cooperation with the vehicle controller, realizes the intelligent adjustment of thermal management strategies, ensuring that the thermal management requirements of the vehicle in various usage scenarios are met.

[0088] As an alternative implementation, testing the thermal management sensing subsystem based on the comparison result includes: in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameter, determining that the test of the thermal management sensing subsystem is successful; in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameter, determining that the test of the thermal management sensing subsystem fails.

[0089] In this embodiment, testing the thermal management sensing subsystem based on the comparison result includes the following steps: when the above comparison result indicates that the parameter to be tested is consistent with the preset test parameter, the thermal management system test controller can determine that the function to be tested within the thermal management sensing subsystem is tested successfully; conversely, when the above comparison result indicates that the parameter to be tested is inconsistent with the preset test parameter, it can be determined that the function to be tested within the thermal management sensing subsystem fails the test.

[0090] It should be noted that the thermal management sensing subsystem can evaluate the software upgrade risk in the thermal management planning and control system and the emergency strategies of the planning and control layer in case of execution layer failures, enhancing the software adaptability and system robustness to ensure that the thermal management system can still maintain its basic functions in case of software updates or hardware failures.

[0091] Specifically, by evaluating software upgrade risks and designing emergency strategies, this application significantly enhances the software adaptability and overall robustness of the thermal management system, ensuring the basic functions of the system in the event of software updates or hardware failures. Software upgrade is an important part of the continuous optimization of the thermal management system, but it also brings potential risks. For example, the new version may be incompatible with the existing hardware, resulting in a decline in system performance. Therefore, this solution conducts a comprehensive risk assessment before the upgrade, including simulating and testing the communication protocol compatibility between the old and new versions to ensure that the upgraded thermal management system can seamlessly interface with the hardware devices at the execution layer. In the event of a failure at the execution layer, the emergency strategy of the planning and control layer can quickly identify the failure status. For example, when the water pump fails, the system automatically switches to the standby cooling mode, or when the electric heater fails, the battery operating mode is adjusted to reduce heat generation, ensuring that the vehicle can still maintain basic thermal management functions in an emergency. This software upgrade risk assessment and emergency strategy design not only solve the compatibility problem of the thermal management system during software updates but also improve the reliability and security of the thermal management system by enhancing the system's self-repair ability.

[0092] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that makes a contribution to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or grid device, etc.) to execute the methods of the various embodiments of the present invention.

[0093] In this embodiment, a test device for a thermal management system is also provided. This device is used to implement the above embodiments and preferred implementation methods, and those that have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0094] Figure 3 is a structural block diagram of a test device 300 for a vehicle-based thermal management system according to an embodiment of the present invention. As Figure 3 shown, the device includes: an acquisition module 301, a determination module 302, and a test module 303.

[0095] The acquisition module 301 is used to acquire a signal to be tested, where the signal to be tested is a functional signal of the thermal management sensing subsystem;

[0096] A determination module 302, configured to determine a test process according to a signal to be tested;

[0097] A test module 303, configured to test the thermal management perception subsystem according to the test process.

[0098] Optionally, the test module 303 includes: an acquisition unit, configured to acquire preset test parameters corresponding to the signal to be tested; a first determination unit, configured to determine the parameter to be tested according to the test process; a comparison unit, configured to compare the parameter to be tested with the preset test parameters to obtain a comparison result; and a test unit, configured to test the thermal management perception subsystem based on the comparison result.

[0099] Optionally, the test unit includes: a first determination subunit, configured to determine that the test of the thermal management perception subsystem is successful in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters; and a second determination subunit, configured to determine that the test of the thermal management perception subsystem fails in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters.

[0100] An embodiment of the present invention further provides a vehicle, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the above-mentioned test method for the thermal management system based on the vehicle.

[0101] Optionally, in this embodiment, the above vehicle may be configured to store a computer program for executing the following steps:

[0102] Step S202: Acquire a signal to be tested, where the signal to be tested is a functional signal of the thermal management perception subsystem;

[0103] Step S204: Determine a test process according to the signal to be tested;

[0104] Step S206: Test the thermal management perception subsystem according to the test process.

[0105] Optionally, when the processor executes the program, the following steps are further implemented: acquire preset test parameters corresponding to the signal to be tested; determine the parameter to be tested according to the test process; compare the parameter to be tested with the preset test parameters to obtain a comparison result; and test the thermal management perception subsystem based on the comparison result.

[0106] Optionally, when the processor executes the program, the following steps are further implemented: determine that the test of the thermal management perception subsystem is successful in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters; and determine that the test of the thermal management perception subsystem fails in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters.

[0107] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0108] An embodiment of the present invention further provides an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the above-mentioned test method for a vehicle-based thermal management system.

[0109] Optionally, in this embodiment, the above-mentioned electronic device may be configured to store a computer program for executing the following steps:

[0110] Step S202, obtain a signal to be tested, where the signal to be tested is a functional signal of a thermal management sensing subsystem;

[0111] Step S204, determine a test process according to the signal to be tested;

[0112] Step S206, test the thermal management sensing subsystem according to the test process.

[0113] Optionally, when the processor executes the program, the following steps are further implemented: obtain preset test parameters corresponding to the signal to be tested; determine parameters to be tested according to the test process; compare the parameters to be tested with the preset test parameters to obtain a comparison result; and test the thermal management sensing subsystem based on the comparison result.

[0114] Optionally, when the processor executes the program, the following steps are further implemented: in response to the comparison result indicating that the parameters to be tested are consistent with the preset test parameters, determine that the test of the thermal management sensing subsystem is successful; and in response to the comparison result indicating that the parameters to be tested are inconsistent with the preset test parameters, determine that the test of the thermal management sensing subsystem fails.

[0115] Optionally, specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0116] An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and the computer program is configured to execute the above-mentioned test method for a vehicle-based thermal management system when running on a computer or a processor.

[0117] Optionally, in this embodiment, the above-mentioned computer-readable storage medium may be configured to store a computer program for executing the following steps:

[0118] Step S202, obtain a signal to be tested, where the signal to be tested is a functional signal of a thermal management sensing subsystem;

[0119] Step S204, determine a test process according to the signal to be tested;

[0120] Step S206, test the thermal management perception subsystem according to the test process.

[0121] Optionally, the storage medium is configured to store program code for performing the following steps: obtaining preset test parameters corresponding to the signal to be tested; determining the parameter to be tested according to the test process; comparing the parameter to be tested with the preset test parameters to obtain a comparison result; and testing the thermal management perception subsystem based on the comparison result.

[0122] Optionally, the storage medium is configured to store program code for performing the following steps: in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters, determining that the test of the thermal management perception subsystem is successful; and in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters, determining that the test of the thermal management perception subsystem fails.

[0123] Optionally, for specific examples in this embodiment, reference may be made to the examples described in the above embodiments and optional implementation manners, and details are not described herein again.

[0124] An embodiment of the present invention further provides a computer program product, including a computer program, wherein the computer program, when executed by a processor, implements the steps of the above-mentioned test method for a vehicle-based thermal management system.

[0125] Optionally, in this embodiment, the above computer program product may be configured to store a computer program for performing the following steps:

[0126] Step S202, obtain the signal to be tested, where the signal to be tested is a functional signal of the thermal management perception subsystem;

[0127] Step S204, determine the test process according to the signal to be tested;

[0128] Step S206, test the thermal management perception subsystem according to the test process.

[0129] Optionally, when the computer program executes the program, it further implements the following steps: obtaining preset test parameters corresponding to the signal to be tested; determining the parameter to be tested according to the test process; comparing the parameter to be tested with the preset test parameters to obtain a comparison result; and testing the thermal management perception subsystem based on the comparison result.

[0130] Optionally, when the computer program executes the program, it further implements the following steps: in response to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters, determining that the test of the thermal management perception subsystem is successful; and in response to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters, determining that the test of the thermal management perception subsystem fails.

[0131] Optionally, for specific examples in this embodiment, reference may be made to the examples described in the above embodiments and optional implementation manners, and details thereof will not be repeated herein.

[0132] In the above embodiments of the present invention, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0133] In some embodiments provided by the present application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are merely illustrative. For example, the division of units can be a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of units or modules can be in an electrical or other form.

[0134] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0135] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0136] 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 computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a grid device, etc.) to execute all or part of the steps of the methods in the various embodiments of the present invention. The aforementioned storage medium includes: USB flash drives, read-only memories (ROMs), random access memories (RAMs), mobile hard disks, magnetic disks, or optical discs and other various media that can store program codes.

[0137] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle-based thermal management system, characterized in that, Comprising: A thermal management sensing subsystem for acquiring a signal to be tested, wherein the signal to be tested is a functional signal of the thermal management sensing subsystem; A thermal management control subsystem for determining a test process according to the signal to be tested; A thermal management execution subsystem for testing the thermal management sensing subsystem according to the test process.

2. The vehicle-based thermal management system according to claim 1, wherein Wherein, The signal to be tested includes a battery operating mode signal, a water temperature signal, an external temperature signal, and a vehicle speed signal. The target vehicle includes a battery, and the thermal management sensing subsystem includes: A battery operating mode management system for acquiring the battery operating mode signal of the battery; A battery water temperature sensor for acquiring the water temperature signal inside the battery; An ambient temperature sensor for acquiring the external temperature signal of the target vehicle; A vehicle speed sensor for acquiring the vehicle speed signal of the target vehicle.

3. The vehicle-based thermal management system according to claim 2, wherein, The thermal management control subsystem includes: A vehicle controller for acquiring preset test parameters corresponding to the signal to be tested, wherein the preset test parameters include a preset battery operating mode, a preset battery water temperature, a preset ambient temperature, and a preset vehicle speed; A thermal management function module for determining the test process according to the preset test parameters.

4. The vehicle-based thermal management system according to claim 3, wherein, The vehicle controller further includes: A receiving module for receiving the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal sent by the thermal management sensing subsystem; A calculation module for determining the preset test parameters corresponding to the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal; A sending module for sending the preset test parameters to the thermal management function module and sending the battery operating mode signal, the water temperature signal, the external temperature signal, and the vehicle speed signal to the thermal management execution subsystem.

5. A test method for a vehicle-based thermal management system, characterized in that, The test method is applied to the vehicle-based thermal management system according to any one of claims 1 to 4, and includes: Acquiring a signal to be tested, wherein the signal to be tested is a functional signal of the thermal management sensing subsystem; Determining a test process according to the signal to be tested; Testing the thermal management sensing subsystem according to the test process.

6. The testing method of the vehicle-based thermal management system according to claim 5, characterized in that, Testing the thermal management sensing subsystem according to the test process includes: Acquiring preset test parameters corresponding to the signal to be tested; Determining a parameter to be tested according to the test process; Comparing the parameter to be tested with the preset test parameters to obtain a comparison result; Testing the thermal management sensing subsystem based on the comparison result.

7. The test method for a vehicle-based thermal management system according to claim 6, characterized in that, Testing the thermal management sensing subsystem based on the comparison result includes: Responding to the comparison result indicating that the parameter to be tested is consistent with the preset test parameters, and determining that the thermal management sensing subsystem test is successful; Responding to the comparison result indicating that the parameter to be tested is inconsistent with the preset test parameters, and determining that the thermal management sensing subsystem test fails.

8. A test device for a vehicle-based thermal management system, characterized in that, Comprising: An acquisition module for acquiring a signal to be tested, wherein the signal to be tested is a functional signal of the thermal management sensing subsystem; A determination module, configured to determine a test process according to the signal to be tested; A test module, configured to test the thermal management perception subsystem according to the test process.

9. A vehicle, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to run the computer program to execute the test method of the vehicle-based thermal management system described in any one of claims 5 to 7 above.

10. A computer-readable storage medium, characterized in that, A computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute the test method of the vehicle-based thermal management system described in any one of claims 5 to 7 above when running on a computer or a processor.

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