Fault early warning method and device, electronic equipment and vehicle

Abstract

The application provides a fault early warning method and device, electronic equipment and vehicle. The method comprises the following steps: when the battery active temperature regulation function of a target vehicle is turned on, the temperature change value of the battery water inlet temperature of the target vehicle in a preset period and the running state of the liquid supercharger pump of the target vehicle are acquired in real time; when the running state is normal running, whether the heat exchanger of the target vehicle lacks heat exchange liquid is judged according to the comparison result of the temperature change value and the temperature change threshold; when the heat exchanger lacks heat exchange liquid, fault early warning information of lacking heat exchange liquid is generated and sent to a target terminal. Through the technical scheme of the application, the effect of early identification and alarm when the heat exchanger lacks heat exchange liquid is realized, and vehicle failure caused by unbalanced battery temperature is avoided.

Description

Technical Field

[0001] This application relates to the field of vehicle fault warning technology, and in particular to a fault warning method, device, electronic equipment and vehicle. Background Technology

[0002] As vehicles have evolved, they are generally equipped with larger power batteries. As the power source of a vehicle, the output capacity of the power battery determines the vehicle's performance and even its safety.

[0003] For liquid-cooled power batteries, when the battery temperature is too high or too low, the temperature of the liquid inside the battery is regulated by the heat exchange fluid in the chiller, which then regulates the temperature of the battery cells. If there is insufficient heat exchange fluid in the chiller, heat exchange will be inefficient, leading to battery temperature imbalance, affecting battery efficiency, and eventually triggering an alarm to remind maintenance when the battery's power output is limited, thus affecting user experience and vehicle safety. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a fault warning method, device, electronic equipment and vehicle, so as to identify and alarm in advance when the heat exchanger lacks heat exchange fluid, so as to avoid vehicle failure caused by battery temperature imbalance.

[0005] To achieve the above objectives, this application provides a fault early warning method, which includes:

[0006] When the active battery temperature regulation function of the target vehicle is turned on, the temperature change value of the battery water inlet temperature of the target vehicle and the operating status of the liquid booster pump of the target vehicle are acquired in real time within a preset period.

[0007] When the operating state is normal, the heat exchanger of the target vehicle is determined to be lacking heat exchange fluid based on the comparison result between the temperature change value and the temperature change threshold.

[0008] In the event that the heat exchanger is short of heat exchange fluid, a fault warning message indicating a lack of heat exchange fluid is generated and sent to the target terminal.

[0009] To achieve the above objectives, this application provides a fault early warning device, which includes:

[0010] The information acquisition module is used to acquire, in real time, the temperature change value of the battery inlet temperature of the target vehicle and the operating status of the liquid booster pump of the target vehicle within a preset period when the active temperature regulation function of the battery of the target vehicle is turned on.

[0011] The judgment module is used to determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid based on the comparison result between the temperature change value and the temperature change threshold when the operating state is normal.

[0012] The fault warning module is used to generate a fault warning message indicating a lack of heat exchange fluid in the heat exchanger and send it to the target terminal when the heat exchanger is short of heat exchange fluid.

[0013] To achieve the above objectives, this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a fault warning method as provided in any embodiment of this application.

[0014] For the purposes described above, this application provides a vehicle that includes electronic devices as provided in any embodiment of this application.

[0015] As can be seen from the above, the fault early warning method provided in this application acquires the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle in real time within a preset period when the active battery temperature regulation function of the target vehicle is turned on. This allows for real-time monitoring of the target vehicle's status, facilitating timely detection of battery temperature regulation faults. Furthermore, when the operating status is normal, the method compares the temperature change value with the temperature change threshold to determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid, thus eliminating interference from the liquid booster pump and more accurately determining whether the heat exchanger is lacking heat exchange fluid. If the heat exchanger is lacking heat exchange fluid, a fault early warning message is generated and sent to the target terminal. This enables early identification and alarm when the heat exchanger is lacking heat exchange fluid, avoiding vehicle malfunctions caused by battery temperature imbalance and ensuring the safety of the target vehicle and the user. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A flowchart illustrating a fault early warning method provided in an embodiment of this application;

[0018] Figure 2 A flowchart illustrating another fault warning method provided in this application embodiment;

[0019] Figure 3This is a schematic diagram of the structure of a vehicle alarm processing device provided in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Figure 1 This is a flowchart illustrating a fault warning method provided in an embodiment of this application. This method is primarily applicable to identifying faults such as insufficient heat exchange fluid in a vehicle's heat exchanger, and providing an early warning before battery temperature imbalance occurs. Figure 1 As shown, the method may specifically include the following steps:

[0024] S110. When the active battery temperature regulation function of the target vehicle is turned on, the temperature change value of the battery water inlet of the target vehicle and the operating status of the liquid booster pump of the target vehicle are acquired in real time within a preset period.

[0025] The target vehicle is the vehicle used for fault monitoring; optionally, the target vehicle is a new energy vehicle. The active battery temperature regulation function is a function where the target vehicle's power battery temperature requires external intervention to raise or lower its temperature. Activation of the active battery temperature regulation function indicates that the corresponding actuator is working normally. The preset cycle is the period used to detect changes in the battery inlet temperature. The temperature change value is the difference between the temperature at the end of the preset cycle and the temperature at the beginning. The liquid booster pump can be a pump device such as a water pump used to circulate liquid. The operating status can include normal operation, abnormal operation, and not started.

[0026] Specifically, when the active battery temperature regulation function of the target vehicle is detected to be activated, the battery cooling process needs to be monitored to determine if a fault exists. The temperature change value of the battery inlet temperature within a preset period is acquired in real time to determine whether the heating or cooling meets the temperature regulation requirements. The operating status of the liquid booster pump in the target vehicle is also acquired in real time to determine whether the liquid booster pump has started and is operating normally.

[0027] Based on the above example, if the active battery temperature regulation function includes an active battery cooling function, and the corresponding actuator for the active battery temperature regulation function is the air conditioning module of the target vehicle, then before acquiring the real-time temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle within a preset period when the active battery temperature regulation function of the target vehicle is activated, it can be determined whether the active battery cooling function of the target vehicle is activated. Specifically, it can be:

[0028] The battery temperature regulation signal is obtained in real time from the battery pack management module of the target vehicle, and the compressor operation signal is obtained in real time from the electric compressor module of the target vehicle.

[0029] The temperature regulation category is determined based on the battery temperature regulation signal, and it is also determined whether the compressor operation signal is greater than zero.

[0030] When the temperature regulation category is battery cooling and the compressor operation signal is greater than zero, the superheat signal is obtained from the target vehicle in real time.

[0031] If the overheat signal is within the preset overheat range, the active battery cooling function of the target vehicle is activated.

[0032] The active battery temperature regulation function is implemented by the vehicle's air conditioning module. The battery temperature regulation signal indicates whether the battery temperature regulation is activated, and whether it's for cooling or heating. Temperature regulation categories include battery cooling and battery heating. The compressor operation signal characterizes the compressor speed; a signal greater than zero indicates the electric compressor module is operating; otherwise, it is not. The superheat signal determines whether the refrigerant has a cooling effect. The preset superheat range is a pre-set range that describes the superheat signal's ability to meet the battery's active cooling requirements, for example, 0–5°C. Too low a range will cause compressor liquid buildup, while too high a range will result in no cooling effect.

[0033] Specifically, the system acquires battery temperature regulation signals in real-time from the target vehicle's battery pack management module and compressor operation signals in real-time from the target vehicle's electric compressor module. Based on the acquired battery temperature regulation signals, the temperature regulation category can be determined, for example: 0 for not activated, 1 for battery cooling, -1 for battery heating, etc. Based on the acquired compressor operation signals, if the compressor operation signal is greater than zero, it indicates that the electric compressor module is operating; otherwise, the electric compressor module is not operating. When the temperature regulation category is battery cooling and the compressor operation signal is greater than zero, it can be determined that the target vehicle is cooling the battery through the air conditioning module. Therefore, the superheat signal is needed to determine whether the refrigerant meets the requirements for active battery cooling activation. The superheat signal is acquired in real-time from the target vehicle, and it is determined whether the superheat signal is within the preset superheat range. If it is, it is determined that the refrigerant meets the requirements for active battery cooling activation, and therefore, the active battery cooling function of the target vehicle is activated; otherwise, it is determined that the active battery cooling function of the target vehicle is not activated.

[0034] This embodiment can be executed by a device or equipment with analytical capabilities. This device or equipment could be a central controller on the target vehicle or a remote cloud server. Preferably, it is executed by a cloud server, such as a TSP (Telematics Service Provider) platform. Analyzing and processing via a cloud server can improve efficiency and reduce the processing load on the target vehicle. In this way, the target vehicle's battery pack management module can send battery temperature regulation signals to the vehicle's in-vehicle communication device in real time, and the target vehicle's electric compressor module can send compressor operation signals to the in-vehicle communication device in real time. The in-vehicle communication device then transmits both the battery temperature regulation signals and the compressor operation signals to the cloud server, allowing the cloud server to obtain these signals in real time and determine whether the target vehicle's active battery cooling function is activated.

[0035] Based on the above example, the overheat signal can be obtained from the target vehicle in real time using any of the following methods:

[0036] Method 1: Obtain the overheat signal from the air conditioning module of the target vehicle in real time.

[0037] Specifically, if subsequent analysis and early warning are performed through the central controller on the target vehicle, the overheat signal of the air conditioning module can be obtained in real time. If subsequent analysis and early warning are performed through a cloud server, the air conditioning module of the target vehicle can send the overheat signal to the vehicle's in-vehicle communication device in real time, and then the in-vehicle communication device sends the overheat signal to the cloud server, so that the cloud server can obtain the overheat signal from the air conditioning module of the target vehicle in real time.

[0038] Method 2: Obtain pressure and temperature signals from the refrigerant outlet of the heat exchanger of the target vehicle in real time, and determine the superheat signal based on the pressure and temperature signals.

[0039] The pressure and temperature signals can be obtained from pressure and temperature sensors installed at the refrigerant outlet of the heat exchanger in the target vehicle.

[0040] Specifically, if subsequent analysis and early warning are performed through the central controller on the target vehicle, the pressure and temperature signals at the refrigerant outlet of the heat exchanger are acquired in real time, and then the superheat signal is calculated and determined. If subsequent analysis and early warning are performed through a cloud server, the pressure and temperature sensors on the target vehicle transmit the pressure and temperature signals at the refrigerant outlet of the heat exchanger to the vehicle's onboard communication equipment in real time, and the onboard communication equipment then transmits the pressure and temperature signals to the cloud server. The cloud server calculates and determines the superheat signal based on the real-time acquired pressure and temperature signals.

[0041] Based on the above example, if the active battery temperature regulation function includes an active battery heating function, and the corresponding actuator for the active battery temperature regulation function is the air conditioning module of the target vehicle, then before acquiring the real-time temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle within a preset period when the active battery temperature regulation function of the target vehicle is activated, it can be determined whether the active battery heating function of the target vehicle is activated. Specifically, it can be:

[0042] The battery temperature regulation signal is obtained in real time from the battery pack management module of the target vehicle, and the compressor operation signal is obtained in real time from the electric compressor module of the target vehicle.

[0043] The temperature regulation category is determined based on the battery temperature regulation signal, and it is also determined whether the compressor operation signal is greater than zero.

[0044] When the temperature regulation category is battery heating and the compressor operation signal is greater than zero, the subcooling signal is obtained from the target vehicle in real time.

[0045] If the supercooling signal is within the preset supercooling range, the active battery heating function of the target vehicle is activated.

[0046] The active battery temperature regulation function is implemented by the air conditioning module of the target vehicle. The subcooling signal is used to determine whether the refrigerant has a heating effect. The preset subcooling range is a pre-set range that describes the subcooling signal's ability to meet the battery's active heating requirements; for example, it should be greater than 0°C. If it's too low, there will be no heating effect; if it's too high, the compressor will experience dry running.

[0047] Specifically, the system acquires battery temperature regulation signals in real-time from the target vehicle's battery pack management module and compressor operation signals in real-time from the target vehicle's electric compressor module. Based on the acquired battery temperature regulation signals, the temperature regulation category can be determined, for example: 0 for not activated, 1 for battery cooling, and -1 for battery heating. Based on the acquired compressor operation signals, if the signal is greater than zero, it indicates that the electric compressor module is operating; otherwise, the electric compressor module is not operating. When the temperature regulation category is battery heating and the compressor operation signal is greater than zero, it can be determined that the target vehicle is using the air conditioning module for battery heating. Therefore, the subcooling signal is needed to determine whether the refrigerant meets the requirements for active battery heating activation. The subcooling signal is acquired in real-time from the target vehicle, and it is determined whether the subcooling signal is within the preset subcooling range. If it is, it is determined that the refrigerant meets the requirements for active battery heating activation, and therefore, the active battery heating function of the target vehicle is activated; otherwise, it is determined that the active battery heating function of the target vehicle is not activated.

[0048] This embodiment can be executed by a device or equipment with analytical capabilities. This device or equipment could be a central controller on the target vehicle or a remote cloud server. Preferably, it is executed by the cloud server. In this case, the target vehicle's battery pack management module can send battery temperature regulation signals to the vehicle's in-vehicle communication device in real time, and the target vehicle's electric compressor module can send compressor operation signals to the in-vehicle communication device in real time. The in-vehicle communication device then transmits both the battery temperature regulation signals and the compressor operation signals to the cloud server, allowing the cloud server to obtain these signals in real time and determine whether the target vehicle's active battery heating function is activated.

[0049] Based on the above example, the supercooling signal can be obtained from the target vehicle in real time using any of the following methods:

[0050] Method 1: Obtain the subcooling signal from the air conditioning module of the target vehicle in real time.

[0051] Specifically, if subsequent analysis and early warning are performed through the central controller on the target vehicle, the overcooling signal of the air conditioning module is obtained in real time. If subsequent analysis and early warning are performed through a cloud server, the air conditioning module of the target vehicle can send the overcooling signal to the vehicle's in-vehicle communication device in real time, and then the in-vehicle communication device sends the overcooling signal to the cloud server, so that the cloud server can obtain the overcooling signal from the air conditioning module of the target vehicle in real time.

[0052] Method 2: Obtain pressure and temperature signals from the refrigerant outlet of the heat exchanger of the target vehicle in real time, and determine the subcooling signal based on the pressure and temperature signals.

[0053] Specifically, if subsequent analysis and early warning are performed through the central controller on the target vehicle, the pressure and temperature signals at the refrigerant outlet of the heat exchanger are acquired in real time, and then the subcooling signal is calculated and determined. If subsequent analysis and early warning are performed through a cloud server, the pressure and temperature sensors on the target vehicle can transmit the pressure and temperature signals at the refrigerant outlet of the heat exchanger to the vehicle's onboard communication equipment in real time, and then the onboard communication equipment transmits the pressure and temperature signals to the cloud server. The cloud server calculates and determines the subcooling signal based on the real-time acquired pressure and temperature signals.

[0054] Based on the above example, if the active battery temperature regulation function includes an active battery heating function, and the actuator corresponding to the active battery heating function is the target heating component of the target vehicle, which is either a car heater or an engine, then before acquiring the real-time temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle within a preset period when the active battery temperature regulation function of the target vehicle is activated, the following method can be used to determine whether the active battery heating function of the target vehicle is activated:

[0055] The battery temperature regulation signal is obtained in real time from the battery pack management module of the target vehicle, and the operation signal of the target heating component of the target vehicle is obtained in real time.

[0056] The temperature regulation category is determined based on the battery temperature regulation signal, and the operation signal is used to determine whether the target heating component is operating.

[0057] When the temperature regulation category is battery heating and the target heating component is operating, the circuit temperature of the target heating component is obtained from the target heating component in real time;

[0058] If the difference between the circuit temperature and the battery inlet temperature is greater than a preset difference, the active battery heating function of the target vehicle is activated.

[0059] The active battery heating function is implemented by the target heating component of the target vehicle, which may be a Positive Temperature Coefficient (PTC) heater or an engine. The operating signal characterizes the operation of the target heating component. The circuit temperature is the temperature of the circuit used for heating within the target heating component. The preset difference is a pre-set value describing the difference between the circuit temperature and the battery inlet temperature to ensure the effective active battery heating.

[0060] Specifically, the system obtains battery temperature regulation signals in real time from the target vehicle's battery pack management module and real-time operating signals from the target vehicle's target heating component. Based on the real-time battery temperature regulation signals, the temperature regulation category can be determined, for example: 0 for not activated, 1 for battery cooling, -1 for battery heating, etc. Based on the real-time operating signals of the target heating component, it can be determined whether the target heating component is operating. If the temperature regulation category is battery heating and the target heating component is operating, it can be determined that the target vehicle is currently heating the battery through the target heating component. Therefore, it is necessary to determine whether the target heating component meets the requirements for active battery heating activation by using the circuit temperature of the target heating component and the battery inlet temperature. The system obtains the circuit temperature of the target heating component in real time and the battery inlet temperature from the target vehicle's battery pack management module, calculates the difference between the circuit temperature and the battery inlet temperature, and determines whether the difference is greater than a preset difference. If it is greater, it is determined that the target heating component meets the requirements for active battery heating activation, and therefore, the active battery heating function of the target vehicle is activated; otherwise, it is determined that the active battery heating function of the target vehicle is not activated.

[0061] S120. Under normal operating conditions, determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid based on the comparison between the temperature change value and the temperature change threshold.

[0062] The temperature change threshold is a value used to determine whether the temperature change meets the normal requirements of the battery's active temperature regulation function, in order to avoid sensor errors. The heat exchange fluid is the liquid within the heat exchanger that performs heat exchange.

[0063] Specifically, under normal operating conditions, indicating that the liquid booster pump is functioning correctly, the temperature change value is compared with a temperature change threshold. If the temperature change value is greater than the threshold, it indicates a significant temperature change in the battery, meaning the battery's active temperature regulation function is working correctly and the target vehicle's heat exchanger has sufficient heat exchange fluid. If the temperature change value is not greater than the threshold, it indicates no significant temperature change in the battery, and the active temperature regulation function is malfunctioning. Since the active temperature regulation function requires three conditions to function correctly—a functioning liquid booster pump, active temperature regulation function activation, and sufficient heat exchange fluid in the heat exchanger—in this case, the liquid booster pump is functioning correctly, the active temperature regulation function is activated, but its effectiveness is still problematic. Therefore, it can be determined that the target vehicle's heat exchanger lacks heat exchange fluid.

[0064] S130. In the event that the heat exchanger is short of heat exchange fluid, generate a fault warning message indicating a lack of heat exchange fluid and send it to the target terminal.

[0065] The fault warning message for insufficient heat exchange fluid is used to remind relevant users of the target vehicle that the heat exchanger is low on heat exchange fluid and requires immediate attention. The target terminal is a terminal device that can alert relevant users of the target vehicle, such as the vehicle's center console display or head-up display.

[0066] Specifically, if the heat exchanger lacks heat exchange fluid, it indicates that the power battery cannot be effectively regulated. Prolonged lack of this fluid can lead to abnormal battery temperature, affecting the vehicle's operation and the safety of its occupants. Therefore, a fault warning message indicating a lack of heat exchange fluid is generated and sent to the target terminal. This ensures that relevant users of the target vehicle receive the warning, allowing for timely intervention and preventing more serious malfunctions.

[0067] It should be noted that if fault warnings are issued through a cloud server, the target vehicle's air conditioning module, battery pack management module, electric compressor module, and other modules will transmit various status signal data to the T-BOX (vehicle communication device) via the GW (Gateway) / CEM (Central Electronic Module). The T-BOX will then transmit the data to the cloud server. The cloud server will process the relevant signals by cleaning NULL (invalid) values ​​to ensure the accuracy of the data.

[0068] The fault warning method provided in this embodiment acquires the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump in real time within a preset period when the active battery temperature regulation function of the target vehicle is activated. This allows for real-time monitoring of the target vehicle's status, facilitating timely detection of battery temperature regulation faults. Furthermore, when the operating status is normal, the method compares the temperature change value with a temperature change threshold to determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid. This eliminates interference from the liquid booster pump and provides a more accurate assessment of whether the heat exchanger is lacking heat exchange fluid. If the heat exchanger is lacking heat exchange fluid, a fault warning message is generated and sent to the target terminal. This method enables early identification and alarm when the heat exchanger is lacking heat exchange fluid, preventing vehicle malfunctions caused by battery temperature imbalance and ensuring the safety of the target vehicle and the user.

[0069] Figure 2This flowchart illustrates another fault warning method provided by an embodiment of this application. Based on the above embodiments, optionally, for cases where the preset period includes a first preset period and a second preset period, the temperature change value includes a first temperature change value corresponding to the first preset period and a second temperature change value corresponding to the second preset period, and the temperature change threshold includes a first temperature change threshold corresponding to the first preset period and a second temperature change threshold corresponding to the second preset period, an exemplary description is provided for determining if the heat exchanger of the target vehicle lacks heat exchange fluid. A method for identifying a liquid booster pump fault and providing a fault warning is added and exemplarily described. Explanations of terms that are the same as or corresponding to those in the above embodiments are not repeated here. Figure 2 As shown, the method may specifically include the following steps:

[0070] S210. When the active battery temperature regulation function of the target vehicle is turned on, the operating status of the liquid booster pump of the target vehicle is acquired in real time.

[0071] Specifically, the operating status of the liquid booster pump of the target vehicle is acquired in real time to determine whether the liquid booster pump is turned on and whether it is operating normally.

[0072] S220. When the operating status is not started or abnormal operation, determine that the liquid booster pump is faulty, generate a fault warning message for the liquid booster pump, and send it to the target terminal.

[0073] Among them, the liquid booster pump fault warning information is used to remind the relevant users of the target vehicle that the liquid booster pump is faulty and cannot operate, and that timely handling is required.

[0074] Specifically, if the liquid booster pump is not started or is operating abnormally, it indicates a malfunction in the liquid booster pump, preventing effective temperature regulation of the power battery. Therefore, a fault warning message for the liquid booster pump is generated and sent to the target terminal so that relevant users of the target vehicle can receive the fault warning message and take timely action.

[0075] It is understandable that a liquid booster pump malfunction can be diagnosed simply by checking the operating status of the liquid booster pump in the target vehicle; therefore, the location of this step is not specifically limited.

[0076] S230. Under normal operating conditions, obtain the first temperature change value of the battery inlet temperature of the target vehicle within the first preset cycle.

[0077] The first temperature change value is the change value of the battery inlet temperature within the first preset cycle, that is, the difference between the battery inlet temperature at the end of the first preset cycle and the battery inlet temperature at the beginning of the first preset cycle.

[0078] Specifically, if the operation status is normal, it indicates that the liquid booster pump is functioning correctly. Therefore, by monitoring the battery inlet temperature for a period of time, the effectiveness of the active battery temperature regulation function can be determined. Accordingly, the battery inlet temperature at the end of the first preset cycle and the battery inlet temperature at the beginning of the first preset cycle are obtained, and the difference between these two battery inlet temperatures is taken as the first temperature change value.

[0079] S240, if the first temperature change value is less than the first temperature change threshold, obtain the second temperature change value of the battery inlet temperature of the target vehicle within the second preset cycle.

[0080] The first preset cycle precedes the second preset cycle, and the first preset cycle is shorter than the second preset cycle. For example, if the preset cycle is 23 minutes, the first preset cycle is the first 3 minutes of the preset cycle, and the second preset cycle is the last 20 minutes of the preset cycle. The second temperature change value is the change in battery inlet temperature within the second preset cycle, that is, the difference between the battery inlet temperature at the end of the second preset cycle and the battery inlet temperature at the beginning of the second preset cycle.

[0081] Optionally, an interval period may be included between the first preset period and the second preset period. The interval period is usually small, such as 1 minute. In this case, the preset period includes the first preset period, the interval period, and the second preset period in sequence.

[0082] Specifically, if the first temperature change value is less than the first temperature change threshold, it is initially determined that the heat exchanger's heat exchange effect is poor, ruling out a liquid booster pump malfunction. However, for a more accurate assessment, longer-term monitoring is required to further determine the heat exchanger's performance. Therefore, the battery inlet temperature at the end of the second preset cycle and the battery inlet temperature at the beginning of the second preset cycle are obtained. The difference between these two battery inlet temperatures is used as the second temperature change value to determine whether the temperature increase or decrease meets the temperature regulation requirements.

[0083] S250, if the second temperature change value is less than the second temperature change threshold, determine that the heat exchanger of the target vehicle is lacking heat exchange fluid.

[0084] The first temperature change threshold and the second temperature change threshold are preset temperature change values ​​used to measure the effect of temperature regulation. The first temperature change threshold and the second temperature change threshold can be set according to actual needs, such as setting them to 2℃ to avoid sensor error. The first temperature change threshold and the second temperature change threshold can be the same or different, and no specific limitation is made here.

[0085] Specifically, it is further determined whether the second temperature change value is less than the second temperature change threshold. If it is still less than the threshold, it indicates that the temperature of the power battery has not been effectively regulated for a long period of time. Therefore, it can be determined that the heat exchanger of the target vehicle is lacking heat exchange fluid.

[0086] S260. In the event that the heat exchanger is short of heat exchange fluid, generate a fault warning message indicating a lack of heat exchange fluid and send it to the target terminal.

[0087] Understandably, a lack of heat exchange fluid in the heat exchanger typically leads to poor coolant flow in the battery pack, hindering temperature regulation and impacting battery pack efficiency. While the vehicle can still operate normally when the battery temperature is balanced, users only realize the need for maintenance when the battery power output is limited due to temperature imbalance. The approach described above doesn't wait until the battery temperature reaches the alarm threshold (i.e., temperature imbalance) before seeking repairs; instead, it proactively monitors the vehicle's condition, reducing the probability of malfunctions, ensuring driving safety, and facilitating after-sales maintenance.

[0088] Based on the above example, the fault warning information includes application warning information and / or service station warning information, and the target terminal includes the mobile terminal and / or service station terminal corresponding to the target vehicle. Therefore, a fault warning information indicating a lack of heat exchange fluid can be generated and sent to the target terminal using any one or two of the following methods:

[0089] Method 1: Based on the current location of the target vehicle, determine the surrounding service stations; combine the information on the heat exchanger's lack of heat exchange fluid with the service station information of the surrounding service stations to generate an application warning message, and send the application warning message to the mobile terminal corresponding to the target vehicle.

[0090] The current location is the location of the target vehicle when the fault warning is issued, which can be obtained through the positioning module. Nearby service stations are vehicle service stations within a preset distance from the current location. Service station information describes the nearby service stations, and may include, for example, their names, addresses, phone numbers, and operating hours. Application warning information is used to send warning messages to the mobile terminal application of the user associated with the target vehicle (such as the vehicle owner).

[0091] Specifically, the system receives the target vehicle's current location from its positioning module and identifies one or more nearby service stations based on pre-recorded service station addresses. It combines the information regarding the heat exchanger's lack of heat exchange fluid with the service station information to generate an application alert. This alert is then sent to the target vehicle's corresponding mobile terminal, allowing the vehicle's registered user to view the alert promptly and access a nearby service station for assistance.

[0092] Method 2: Based on the current location of the target vehicle, determine the surrounding service stations; combine the information on the heat exchanger's lack of heat exchange fluid with the target vehicle's vehicle information to generate a service station warning message, and send the service station warning message to the service station terminals of the surrounding service stations.

[0093] Vehicle information describes the target vehicle and may include details such as license plate number, vehicle model, owner's name, and owner's contact information. Service station warning information is used to send alerts to the service station terminals of nearby service stations.

[0094] Specifically, the system receives the target vehicle's current location from its positioning module and, based on pre-entered service station addresses, identifies one or more nearby service stations. It combines the information regarding the heat exchanger's lack of heat exchange fluid with the target vehicle's information to generate a service station alert. This alert is then sent to the service station terminals of nearby stations, enabling their staff to promptly notify the vehicle owner that the heat exchanger is low on heat exchange fluid and to remind the owner to visit a nearby service station for repairs or schedule on-site service.

[0095] Optionally, the method for determining nearby service stations may be: determining whether there is a vehicle service station within a preset distance from the current location; if so, determining the vehicle service station within the preset distance from the current location as a nearby service station; if not, determining the vehicle service station with the smallest distance from the current location as a nearby service station.

[0096] Optionally, if there are at least two nearby service stations, after one of the nearby service stations sends a reminder and notification to the vehicle owner, the warning information of the remaining nearby service stations is marked as processed, thus avoiding multiple nearby service stations sending reminders and notifications to the owner of the target vehicle.

[0097] The fault warning method provided in this embodiment acquires the real-time operating status of the liquid booster pump of the target vehicle when the battery active temperature regulation function of the target vehicle is enabled. Then, if the operating status is not started or abnormal operation, a liquid booster pump fault is determined, a liquid booster pump fault warning message is generated, and sent to the target terminal to warn of liquid booster pump faults and prevent battery temperature imbalance. If the operating status is normal operation, the method acquires the first temperature change value of the battery inlet temperature within a first preset period to monitor the status of the target vehicle in real time. If the first temperature change value is less than a first temperature change threshold... The system acquires the second temperature change value of the battery inlet temperature of the target vehicle within a second preset cycle to further monitor the vehicle's status, facilitate phased analysis, and promptly detect battery temperature regulation faults. If the second temperature change value is less than the second temperature change threshold, it determines that the target vehicle's heat exchanger lacks heat exchange fluid. By comparing and judging in two stages, the system improves the accuracy of determining whether the heat exchanger lacks heat exchange fluid, enabling early identification and alarm for liquid booster pump malfunctions and heat exchanger lack of heat exchange fluid. This avoids vehicle malfunctions caused by battery temperature imbalance, ensuring the safety of the target vehicle and the user.

[0098] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0099] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0100] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides a vehicle alarm processing device. Figure 3 This is a schematic diagram of a vehicle alarm processing device provided in an embodiment of this application. (Reference) Figure 3 The vehicle alarm processing device includes: an information acquisition module 310, a judgment module 320, and a fault warning module 330.

[0101] The information acquisition module 310 is used to acquire, in real time, the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle within a preset period when the active battery temperature regulation function of the target vehicle is activated; the judgment module 320 is used to determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid based on the comparison result of the temperature change value and the temperature change threshold when the operating status is normal; the fault warning module 330 is used to generate a fault warning message for lack of heat exchange fluid and send it to the target terminal when the heat exchanger is lacking heat exchange fluid.

[0102] Based on the above example, optionally, the active battery temperature regulation function includes an active battery cooling function; before acquiring the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle in real time within a preset period when the active battery temperature regulation function of the target vehicle is activated, it further includes: a battery active cooling function activation determination module, used to acquire a battery temperature regulation signal from the battery pack management module of the target vehicle in real time, and acquire a compressor operation signal from the electric compressor module of the target vehicle in real time; determine the temperature regulation category according to the battery temperature regulation signal, and determine whether the compressor operation signal is greater than zero; when the temperature regulation category is battery cooling and the compressor operation signal is greater than zero, acquire a superheat signal from the target vehicle in real time; in response to the superheat signal being within a preset superheat range, determine that the active battery cooling function of the target vehicle is activated; wherein, the execution component corresponding to the active battery temperature regulation function is the air conditioning module of the target vehicle.

[0103] Based on the above example, optionally, the battery active cooling function activation determination module is also used to obtain a superheat signal from the air conditioning module of the target vehicle in real time; or, to obtain a pressure signal and a temperature signal from the refrigerant outlet of the heat exchanger of the target vehicle in real time, and to determine the superheat signal based on the pressure signal and the temperature signal.

[0104] Based on the above example, optionally, the active battery temperature regulation function includes an active battery heating function; before acquiring the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle in real time within a preset period when the active battery temperature regulation function of the target vehicle is activated, it further includes: a battery active heating function activation determination module, used to acquire a battery temperature regulation signal from the battery pack management module of the target vehicle in real time, and acquire a compressor operation signal from the electric compressor module of the target vehicle in real time; determine the temperature regulation category according to the battery temperature regulation signal, and determine whether the compressor operation signal is greater than zero; when the temperature regulation category is battery heating and the compressor operation signal is greater than zero, acquire a subcooling signal from the target vehicle in real time; in response to the subcooling signal being within the subcooling preset range, determine that the active battery heating function of the target vehicle is activated; wherein, the execution component corresponding to the active battery temperature regulation function is the air conditioning module of the target vehicle.

[0105] Based on the above example, optionally, after acquiring the operating status of the liquid booster pump of the target vehicle in real time, it further includes: a liquid booster pump early warning module, used to determine the liquid booster pump failure when the operating status is not started or abnormal operation, generate liquid booster pump failure early warning information, and send it to the target terminal.

[0106] Based on the above example, optionally, the preset period includes a first preset period and a second preset period, the temperature change value includes a first temperature change value corresponding to the first preset period and a second temperature change value corresponding to the second preset period, and the temperature change threshold includes a first temperature change threshold corresponding to the first preset period and a second temperature change threshold corresponding to the second preset period; the information acquisition module 310 and the judgment module 320 are further configured to acquire the operating status of the liquid booster pump of the target vehicle in real time; when the operating status is normal operation, acquire the first temperature change value of the battery inlet temperature of the target vehicle within the first preset period; when the first temperature change value is less than the first temperature change threshold, acquire the second temperature change value of the battery inlet temperature of the target vehicle within the second preset period; when the second temperature change value is less than the second temperature change threshold, determine that the heat exchanger of the target vehicle lacks heat exchange fluid; wherein, the first preset period is before the second preset period, and the first preset period is less than the second preset period.

[0107] Based on the above example, optionally, the fault warning information includes application warning information and / or service station warning information, and the target terminal includes the mobile terminal and / or service station terminal corresponding to the target vehicle; the fault warning module 330 is further configured to determine the surrounding service stations based on the current location of the target vehicle; combine the situation of the heat exchanger lacking heat exchange fluid with the service station information of the surrounding service stations to generate application warning information, and send the application warning information to the mobile terminal corresponding to the target vehicle; and / or, combine the situation of the heat exchanger lacking heat exchange fluid with the vehicle information of the target vehicle to generate service station warning information, and send the service station warning information to the service station terminal of the surrounding service station.

[0108] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0109] The apparatus described above is used to implement the corresponding fault warning method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0110] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the fault warning method described in any of the above embodiments.

[0111] Figure 4 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0112] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0113] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0114] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0115] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0116] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0117] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0118] The electronic devices described above are used to implement the corresponding fault warning methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0119] Based on the same inventive concept, this application also provides a vehicle, wherein the vehicle includes electronic equipment as described in the above embodiments.

[0120] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a computer-readable storage medium storing computer instructions for causing the computer to execute the fault warning method as described in any of the above embodiments.

[0121] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0122] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the fault warning method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0123] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0124] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0125] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0126] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A fault early warning method, characterized in that, include: The battery temperature regulation signal is obtained in real time from the battery pack management module of the target vehicle, and the compressor operation signal is obtained in real time from the electric compressor module of the target vehicle. The temperature regulation category is determined based on the battery temperature regulation signal, and it is determined whether the compressor operation signal is greater than zero. If the temperature regulation category is battery cooling and the compressor operation signal is greater than zero, a superheat signal is obtained from the target vehicle in real time. If the superheat signal is within a preset superheat range, the active battery cooling function of the target vehicle is activated, wherein the actuator corresponding to the active battery cooling function is the air conditioning module of the target vehicle; or... The system acquires battery temperature regulation signals in real time from the battery pack management module of the target vehicle, and acquires compressor operation signals in real time from the electric compressor module of the target vehicle. It determines the temperature regulation category based on the battery temperature regulation signals and checks whether the compressor operation signal is greater than zero. If the temperature regulation category is battery heating and the compressor operation signal is greater than zero, it acquires a subcooling signal in real time from the target vehicle. If the subcooling signal is within a preset subcooling range, it determines that the active battery heating function of the target vehicle is activated. The actuator corresponding to the active battery heating function is the air conditioning module of the target vehicle. After the active cooling or active heating function of the battery in the active temperature regulation function of the target vehicle is turned on, the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle are acquired in real time within a preset period. When the operating state is normal, the heat exchanger of the target vehicle is determined to be lacking heat exchange fluid based on the comparison result between the temperature change value and the temperature change threshold. In the event that the heat exchanger is short of heat exchange fluid, a fault warning message indicating a lack of heat exchange fluid is generated and sent to the target terminal.

2. The method according to claim 1, characterized in that, The real-time acquisition of overheat signals from the target vehicle includes: The overheat signal is obtained in real time from the air conditioning module of the target vehicle; or, Pressure and temperature signals are acquired in real time from the refrigerant outlet of the heat exchanger of the target vehicle, and the superheat signal is determined based on the pressure and temperature signals.

3. The method according to claim 1, characterized in that, After acquiring the real-time operating status of the liquid booster pump of the target vehicle, the method further includes: If the operating status is not started or abnormal operation, a liquid booster pump malfunction is determined, a liquid booster pump malfunction warning message is generated, and sent to the target terminal.

4. The method according to claim 1, characterized in that, The preset period includes a first preset period and a second preset period, the temperature change value includes a first temperature change value corresponding to the first preset period and a second temperature change value corresponding to the second preset period, and the temperature change threshold includes a first temperature change threshold corresponding to the first preset period and a second temperature change threshold corresponding to the second preset period. The real-time acquisition of the temperature change value of the battery inlet temperature of the target vehicle within a preset period and the operating status of the liquid booster pump of the target vehicle. When the operating state is normal, based on the comparison result of the temperature change value and the temperature change threshold, it is determined whether the heat exchanger of the target vehicle is lacking heat exchange fluid, including: The operating status of the liquid booster pump of the target vehicle is acquired in real time. When the operating state is normal, the first temperature change value of the battery inlet temperature of the target vehicle within the first preset cycle is obtained. If the first temperature change value is less than the first temperature change threshold, obtain the second temperature change value of the battery inlet temperature of the target vehicle within a second preset period. If the second temperature change value is less than the second temperature change threshold, it is determined that the heat exchanger of the target vehicle is lacking heat exchange fluid. Wherein, the first preset period is located before the second preset period, and the first preset period is less than the second preset period.

5. The method according to claim 1, characterized in that, The fault warning information includes application warning information and / or service station warning information, and the target terminal includes the mobile terminal and / or service station terminal corresponding to the target vehicle. The generation of a fault warning message indicating a lack of heat exchange fluid, and its transmission to the target terminal, includes: Based on the current location of the target vehicle, determine the surrounding service stations; The system combines the information regarding the lack of heat exchange fluid in the heat exchanger with the service station information of nearby service stations to generate an application-based warning message, which is then sent to the mobile terminal corresponding to the target vehicle; and / or, The system combines the information of the heat exchanger lacking heat exchange fluid with the vehicle information of the target vehicle to generate a service station warning message, which is then sent to the service station terminals of the surrounding service stations.

6. A fault early warning device, characterized in that, include: A battery active cooling function activation determination module is used to obtain battery temperature regulation signals in real time from the target vehicle's battery pack management module and compressor operation signals in real time from the target vehicle's electric compressor module; determine the temperature regulation category based on the battery temperature regulation signals, and determine whether the compressor operation signal is greater than zero; if the temperature regulation category is battery cooling and the compressor operation signal is greater than zero, obtain a superheat signal in real time from the target vehicle; in response to the superheat signal being within a preset superheat range, determine that the target vehicle's battery active cooling function is activated, wherein the actuator corresponding to the battery active cooling function is the target vehicle's air conditioning module; or... The battery active heating function activation determination module is used to obtain battery temperature regulation signals from the battery pack management module of the target vehicle in real time, and to obtain compressor operation signals from the electric compressor module of the target vehicle in real time; determine the temperature regulation category based on the battery temperature regulation signals, and determine whether the compressor operation signal is greater than zero; when the temperature regulation category is battery heating and the compressor operation signal is greater than zero, obtain the subcooling signal from the target vehicle in real time; in response to the subcooling signal being within the subcooling preset range, determine that the battery active heating function of the target vehicle is activated, wherein the execution component corresponding to the battery active heating function is the air conditioning module of the target vehicle; The information acquisition module is used to acquire, in real time, the temperature change value of the battery inlet temperature and the operating status of the liquid booster pump of the target vehicle within a preset period after the battery active cooling function or battery active heating function in the battery active temperature regulation function of the target vehicle is turned on. The judgment module is used to determine whether the heat exchanger of the target vehicle is lacking heat exchange fluid based on the comparison result between the temperature change value and the temperature change threshold when the operating state is normal. The fault warning module is used to generate a fault warning message indicating a lack of heat exchange fluid in the heat exchanger and send it to the target terminal when the heat exchanger is short of heat exchange fluid.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the fault warning method as described in any one of claims 1 to 5.

8. A vehicle, characterized in that, The vehicle includes the electronic equipment as described in claim 7.

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