A method, apparatus, and electronic device for evaluating vehicle performance.

Abstract

A method, apparatus, and electronic device for evaluating vehicle performance are disclosed, relating to the field of automotive electrical performance testing technology. The method includes: testing the current and power consumption of various modules of a vehicle under different operating conditions through tests such as low-voltage power consumption testing, slow-charging power consumption testing, special operating condition power consumption testing, intelligent charging testing, and static current testing, achieving a comprehensive and accurate evaluation of the performance of different vehicle models in core indicators; then, the obtained test data is organized and analyzed to generate visual charts and data reports, enabling a more intuitive comparison of the performance of various vehicle models in different test items.

Description

Technical Field

[0001] This application relates to the field of automotive electrical performance testing technology, and more specifically, to a method, apparatus, and electronic device for evaluating vehicle performance. Background Technology

[0002] As the automotive industry transforms towards electrification, intelligentization, and connectivity, the low-voltage electrical system, as the foundation of vehicle operation, has a profound impact on energy consumption, safety, reliability, and user experience. In the field of new energy vehicles, the low-voltage system not only powers traditional lighting, air conditioning, and entertainment systems, but also works in conjunction with the high-voltage system to provide a stable power supply for core components such as intelligent driving sensors and domain controllers. Meanwhile, users are increasingly concerned about vehicle range, charging efficiency, and battery lifespan, and indicators such as power consumption control and intelligent charging in low-voltage electrical performance directly relate to the vehicle's actual range and battery health.

[0003] Therefore, how to more comprehensively and accurately evaluate the low-voltage electrical performance of various energy vehicles has become a problem that needs to be solved. Summary of the Invention

[0004] In view of this, embodiments of this application propose a method, apparatus, and electronic device for evaluating vehicle performance, which can achieve more comprehensive low-voltage electrical testing and evaluation of various vehicle models, reduce preliminary preparation work, and greatly improve testing efficiency.

[0005] The following technical solution is adopted in this application.

[0006] In a first aspect, embodiments of this application provide a method for evaluating vehicle performance, the method comprising:

[0007] The test conditions for the vehicle are determined; the test conditions indicate the vehicle's operating status and the environment in which the vehicle is located; when both the vehicle and its environment meet the test conditions, the vehicle is tested to obtain first test data; the first test data includes the current and power consumption of each module in the vehicle's multiple modules; based on the first test data, the second test data for the vehicle is determined; the second test data indicates the sum of the currents of the multiple modules and the sum of the power consumption of the multiple modules; the performance of the vehicle is evaluated based on the second test data.

[0008] In some embodiments, when the test condition is the first test condition, and when both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data, including: When both the vehicle and its surrounding environment meet the first test conditions, the vehicle is tested to obtain the first data in the first test data. The first test conditions are the environment where the vehicle is located at a first temperature and a first altitude, and the vehicle's operating state is that the vehicle is in motion. The first data are the average current and average power consumption of each module in the vehicle's multiple modules under the first test conditions.

[0009] In some embodiments, when the test condition is the second test condition, and when both the vehicle and its surrounding environment meet the test condition, the vehicle is tested to obtain first test data, including: When both the vehicle and its surrounding environment meet the second test conditions, the vehicle is tested to obtain the second data from the first test data. The second test conditions are that the vehicle's surrounding environment is at a first temperature and a first altitude, and the vehicle is in the process of charging. The second data are the average current and average power consumption of each module in the vehicle's multiple modules under the second test conditions.

[0010] In some embodiments, when the test condition is the third test condition, and when both the vehicle and its surrounding environment meet the test conditions, the vehicle is tested to obtain first test data, including: When the vehicle and its environment meet the third test conditions (environmental conditions of second temperature and first altitude, and vehicle startup and stationary status), the vehicle is tested to obtain first intermediate data. The first intermediate data consists of the first maximum current and first maximum power consumption of each module in the vehicle's multiple modules. When the vehicle and its environment meet the third test conditions (environmental conditions of third temperature and first altitude, and vehicle startup and stationary status), the vehicle is tested to obtain second intermediate data. The second intermediate data consists of the second maximum current and second maximum power consumption of each module in the vehicle's multiple modules. When the vehicle and its environment meet the third test conditions (environmental conditions of first temperature and second altitude, and vehicle driving status), the vehicle is tested to obtain third intermediate data. The third intermediate data consists of the third maximum current and third maximum power consumption of each module in the vehicle's multiple modules. Based on the first, second, and third intermediate data, third data is determined. The current value of the third data is the maximum value among the first, second, and third maximum currents, and the power consumption value is the maximum value among the first, second, and third maximum power consumptions.

[0011] In some embodiments, when the test condition is the fourth test condition, and when both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data. The method further includes: When both the vehicle and its surrounding environment meet the fourth test conditions, the vehicle is tested to obtain the fourth data in the first test data. The fourth test conditions are: the vehicle's surrounding environment is at the first temperature and the first altitude; the vehicle's operating state is that the vehicle's battery charge is reduced to a threshold before charging; the fourth data are the current and power consumption of the vehicle's battery under the fourth test conditions.

[0012] In some embodiments, when the test condition is the fifth test condition, and when both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data, and the test further includes: When both the vehicle and its surrounding environment meet the fifth test conditions, the vehicle is tested to obtain the fifth data in the first test data. The fifth test conditions are: the vehicle's surrounding environment is at the first temperature and the first altitude, and the vehicle is in sleep mode. The fifth data is the average current of each module in the vehicle's multiple modules under the fifth test conditions.

[0013] In some embodiments, after determining the second test data of the vehicle based on the first test data, the method further includes: The vehicle's low-voltage test data is acquired through the vehicle's sensors; the low-voltage test data includes the current and power consumption at the vehicle's low-voltage terminal; based on the second test data and the low-voltage test data, the third test data is determined; the current value of the third test data is the difference between the current value of the second test data and the current value of the low-voltage test data, and the power consumption value of the third test data is the difference between the power consumption value of the second test data and the power consumption value of the low-voltage test data.

[0014] In some embodiments, evaluating the vehicle's performance based on the second test data further includes: Obtain reference data for each module in the vehicle's multiple modules; evaluate the vehicle's performance based on the reference data, second test data, and third test data.

[0015] According to a second aspect of the embodiments of this application, a vehicle performance evaluation apparatus is provided, the apparatus comprising: The acquisition module is used to determine the test conditions of the vehicle; the test conditions indicate the vehicle's operating status and the environment in which the vehicle is located; the test module is used to test the vehicle when both the vehicle and its environment meet the test conditions, and obtain first test data; the first test data includes the current and power consumption of each module in the vehicle's multiple modules; the processing module is used to determine the vehicle's second test data based on the first test data; the second test data indicates the sum of the currents of the vehicle's multiple modules and the sum of the power consumption of the vehicle's multiple modules; the evaluation module is used to evaluate the vehicle's performance based on the second test data.

[0016] According to a third aspect of the embodiments of this application, an electronic device is provided, the electronic device comprising: a processor; and a memory storing computer-readable instructions, wherein when the computer-readable instructions are executed by the processor, the above-described vehicle performance evaluation method is implemented.

[0017] In this application's solution, firstly, test items such as low-voltage power consumption test, slow charging power consumption test, special operating condition power consumption test, intelligent charging test, and static current test are set up to test the current and power consumption of each module of the vehicle under different operating conditions, i.e., the first test data of each module, so as to achieve a more comprehensive low-voltage power testing and evaluation of various models and improve testing efficiency; secondly, the second test data of the vehicle is obtained based on the first test data, and the data is sorted, cleaned and compared and analyzed to generate visual charts and data reports, so as to achieve a more comprehensive and accurate evaluation of the performance of different models in core indicators, so as to facilitate the improvement of load deployment for other models and the focused management of the load of modules with high power consumption of the models.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0020] Figure 1 This is a schematic diagram illustrating a method for evaluating vehicle performance provided in an embodiment of this application.

[0021] Figure 2 This is a flowchart illustrating a method for evaluating vehicle performance provided in an embodiment of this application.

[0022] Figure 3 This is a flowchart illustrating a vehicle performance testing method provided in an embodiment of this application.

[0023] Figure 4 This is a flowchart illustrating another method for evaluating vehicle performance provided in an embodiment of this application.

[0024] Figure 5 This is a schematic diagram of the structure of a vehicle performance evaluation device provided in an embodiment of this application.

[0025] Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0026] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through specific embodiments. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0028] In conventional technology, electric vehicle electrical balance refers to the state in which the power supply and consumption of the vehicle's generator, battery, and electrical components reach equilibrium within a certain timeframe. If the vehicle's power generation and consumption fail to reach this equilibrium, it can lead to underutilization of battery capacity, shortened battery life, and even safety incidents such as fires. Currently, when conducting low-voltage electrical tests on various vehicle models, automakers rely on the experience of their engineers, failing to consider the differences in power consumption across different vehicle types under various operating conditions. This results in unsatisfactory test results and insufficient comparison between different models.

[0029] The vehicle performance evaluation method provided in this application aims to solve the above-mentioned technical problems of the prior art.

[0030] The technical solution of this application and how it solves the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram illustrating a scenario for a vehicle performance evaluation method provided in an embodiment of this application. Figure 1 As shown, the vehicle performance evaluation method provided in this application includes a vehicle 101, a first module 102, and a second module 103.

[0032] In one alternative implementation, the first module 102 is an electronic device with data processing capabilities, such as a computer, host, server, or data center.

[0033] In one alternative implementation, the second module 103 includes testing instruments such as a power analyzer, a current clamp, a voltage recorder, an environmental simulation chamber, and a slow-charging station.

[0034] Optionally, the vehicle 101, the first module 102, and the second module 103 can communicate via wired or wireless connections. Wired connections may include, but are not limited to, bus, fiber optic, or network cables. Wireless connections may include, for example, transmission control protocol / internet protocol (TCP / IP), wireless local area network (WLAN), and remote direct memory access (RDMA) over converged Ethernet (RoCE) protocols.

[0035] The following is combined with Figure 1 The vehicle 101, the first module 102, and the second module 103 shown illustrate the vehicle performance evaluation method provided in this application embodiment: First, the test conditions of the vehicle 101 are determined by the environmental simulation chamber and the slow charging pile in the second module 103; second, when both the vehicle 101 and the environment in which the vehicle 101 is located meet the test conditions, the vehicle 101 is tested, and first test data is obtained based on the test instruments such as the power analyzer, current clamp, and voltage recorder in the second module 103; finally, the first module 102 determines the second test data of the vehicle 101 based on the first test data, and evaluates the performance of the vehicle 101 based on the second test data.

[0036] Below Figure 1 Based on the first module 101 and the second module 102 shown, the vehicle performance evaluation method provided in the embodiments of this application will be further explained, such as... Figure 2 The diagram illustrates a process flow for evaluating vehicle performance. In a specific embodiment, this vehicle performance evaluation method can be applied to, for example... Figure 5 The vehicle performance evaluation device 500 and the electronic device 600 equipped with the vehicle performance evaluation device 500 are shown. Figure 6 The specific process of the embodiments of this application will be described below. Of course, it is understood that this method can be executed by a cloud server with computing power. The following will focus on... Figure 2 The process shown is explained in detail. The vehicle performance evaluation method may specifically include the following steps 201 to 204.

[0037] Step 201: Determine the test conditions for the vehicle; the test conditions are used to indicate: the operating status of the vehicle and the environment in which the vehicle is located.

[0038] In this embodiment of the application, the test conditions are multiple operating states of the vehicle and multiple environments in which the vehicle is located, set according to multiple test items.

[0039] The test items are set to be closely related to the vehicle's low-voltage electricity, and may include low-voltage power consumption test, slow charging power consumption test, special working condition power consumption test, intelligent charging test, and static current test. The test vehicle models can be recently launched models that have received good user feedback.

[0040] For example, low-voltage power consumption testing primarily evaluates the performance of a vehicle's low-voltage electrical system to ensure its stability, safety, and efficiency under various conditions. The first test condition for low-voltage power consumption testing is that the vehicle is in an environment with normal temperature and altitude, and the operating status of each module under different operating conditions.

[0041] For example, the slow charging power consumption test primarily evaluates the efficiency of the vehicle's on-board charger (OBC) in converting AC power from the grid to DC power from the battery, to ensure improved charging speed and maintain battery protection. The second test condition for the slow charging power consumption test is also that the vehicle is in an environment with normal temperature and altitude, and is in a charging state.

[0042] For example, the special operating condition power consumption test mainly evaluates the performance of the vehicle's low-voltage electrical system under extreme environments to ensure the reliability and safety of the vehicle's electrical system under extreme conditions. The third test conditions set for the special operating condition power consumption test include starting the vehicle after it has been stationary for a period of time in an environment with high temperature and normal altitude, starting the vehicle after it has been stationary for a period of time in an environment with low temperature and normal altitude, or driving at a constant speed in an environment with normal temperature and high altitude.

[0043] For another example, the intelligent charging test primarily targets situations where the T-BOX (TelematicsBox, the vehicle communication module) periodically and automatically wakes up the CAN network (Controller Area Network) when the vehicle is parked for extended periods. It detects the low-voltage battery and determines whether charging is needed, ensuring the vehicle's charging performance, safety, and reliability in various scenarios. The fourth detection condition for the intelligent charging test is that the vehicle is in an environment with normal temperature and altitude, and the vehicle is charged when the battery level drops to a critical value.

[0044] For example, static current testing is primarily used to assess battery depletion after a vehicle has been parked for a period of time, ensuring the safe operation of the vehicle's low-voltage electrical system. The fifth testing condition for static current testing is an environment with normal temperature and altitude, where all vehicle modules are in a dormant state.

[0045] Step 202: When both the vehicle and its environment meet the test conditions, the vehicle is tested to obtain the first test data. The first test data includes the current and power consumption of each module in the vehicle's multiple modules.

[0046] In this embodiment of the application, the first test data is the current and power consumption of each module of the vehicle monitored during the testing of the vehicle according to multiple test items.

[0047] In the first optional example, when both the vehicle and its environment meet the first test conditions for low-voltage power consumption testing, the power consumption of the entire vehicle and its various modules, such as the lighting system, air conditioning system, entertainment system, and body control module, is monitored in real time using a power analyzer. The operating status and power changes of each module of the vehicle under different operating conditions are recorded, and the average power consumption and average current per unit mileage or unit time are calculated.

[0048] In the second optional example, when both the vehicle and its environment meet the second test conditions for slow charging power consumption testing, the input power of the charging pile, the charging time, and the actual power received by the vehicle's battery are recorded by the charging pile and the power analyzer, respectively. Then, the charging efficiency of the vehicle is calculated, the power change trend during the charging process is analyzed, and abnormal heating or excessive power fluctuations are monitored during the charging process. The charging efficiency of the vehicle is calculated as: actual received power / input power × 100%.

[0049] In the third optional example, special operating conditions include high-temperature, low-temperature, and high-altitude conditions. The vehicle is placed in an environmental simulation chamber to monitor power consumption changes under different conditions. Specifically, for high-temperature power consumption testing, the ambient temperature can be set to 45°C and the humidity to 80%. After the vehicle has been stationary for 2 hours, it is started, and the air conditioning system is set to maximum cooling. The power consumption of the entire vehicle and the air conditioning system is recorded and tested continuously for 2 hours. For low-temperature power consumption testing, the ambient temperature can be set to -30°C. After the vehicle has been stationary for 4 hours, it is started, and the power consumption of the entire vehicle and its main modules, such as the battery heating system and seat heating system, is recorded immediately upon startup and within 10 minutes after startup. For high-altitude power consumption testing, an environmental simulation chamber can simulate the air pressure environment at an altitude of 4000 meters. The vehicle is driven at a constant speed of 60 km / h, and the power consumption of the entire vehicle and its main modules, such as the engine auxiliary system and the turbocharging system, is monitored.

[0050] In the fourth optional example, when both the vehicle and its environment meet the fourth detection condition of the intelligent charging test, and the range of the battery threshold value is set to 10% to 15% of the total battery capacity, the vehicle's intelligent charging function is triggered when the battery capacity is reduced to the threshold value. At this time, the starting logic of the vehicle's intelligent charging function is observed, and the output power of the generator, the battery charging current and voltage changes during the charging process are recorded. In this way, the charging efficiency of the vehicle and the impact on other electrical modules of the vehicle during the charging process are evaluated.

[0051] In the fifth optional example, when both the vehicle and the environment in which the vehicle is located meet the fifth detection condition of the static current test, the vehicle is left to stand still for 30 minutes to ensure that the vehicle enters deep hibernation. The negative terminal of the vehicle's battery is disconnected and a current clamp is connected in series. The static current of the battery is measured. The static current is tested after the vehicle has been parked for 1 hour, 6 hours, and 12 hours, respectively. The decay trend of the current over time is analyzed to determine whether there is a leakage.

[0052] Step 203: Determine the second test data of the vehicle based on the first test data; the second test data is used to indicate: the sum of the current of multiple modules and the sum of the power consumption of multiple modules.

[0053] In this embodiment of the application, the second test data is the total current and total power consumption of each module of the vehicle.

[0054] For example, the first test data is organized, cleaned, and analyzed. First, the first test data undergoes a quality check to determine missing values ​​and their proportions. Missing values ​​can be filled using methods such as median or interpolation. Outliers in the data are detected and handled using the IQR (interquartile range) method. Second, after processing the first test data, statistical descriptions such as mean, median, standard deviation, skewness, and kurtosis can be used to analyze the data. Finally, visual charts and data reports are generated to compare the performance of multiple vehicle models in different test items.

[0055] The first test data includes modules such as the vehicle's three-electric system, powertrain, thermal management, interior, exterior, cabin, chassis, and intelligent driving system. The second test data is the sum of the current and power consumption of each module.

[0056] Step 204: Evaluate the vehicle's performance based on the second test data.

[0057] For example, by comparing and analyzing the second test data with the total vehicle data under different operating conditions, the main purpose is to improve the load distribution of other models in the future, so as to more comprehensively and accurately understand the performance of all pneumatic models under different loads.

[0058] For example, by analyzing the power consumption of different modules under different operating conditions, the main purpose is to focus on managing the load of modules with high power consumption in this vehicle model.

[0059] For example, by using a horizontal comparison under different operating conditions, the power consumption of the same module controller in different vehicle models can be analyzed to obtain the controller's operating strategy under different operating conditions, so as to apply the relevant strategies that perform well in other vehicles to this vehicle model.

[0060] In this embodiment, firstly, test items such as low-voltage power consumption test, slow charging power consumption test, special working condition power consumption test, intelligent charging test, and static current test are set to test the current and power consumption of each module of the vehicle under different working conditions, i.e., the first test data, which realizes a comprehensive and accurate evaluation of the performance of different models in core indicators; secondly, the second test data of the vehicle is obtained based on the first test data, and the data is sorted and analyzed to generate visual charts and data reports, which realizes a more intuitive comparison of the performance of each model in different test items.

[0061] Regarding how to test the vehicle and obtain the first test data when both the vehicle and its surrounding environment meet the test conditions, this application provides an optional implementation method, such as... Figure 3 The flowchart shown is a method for testing the performance of a vehicle, which may include the following steps 301 to 311.

[0062] Step 301: Determine the test conditions for the vehicle; the test conditions are used to indicate: the vehicle's operating status and the environment in which the vehicle is located.

[0063] Step 302: When both the vehicle and its environment meet the first test conditions, the vehicle is tested to obtain the first data in the first test data. The first test conditions are the environment where the vehicle is located at a first temperature and a first altitude, and the vehicle's operating state is that the vehicle is in motion. The first data are the average current and average power consumption of each module in the vehicle's multiple modules under the first test conditions.

[0064] For example, when the vehicle is in an environment with normal temperature and altitude, and the vehicle is driving under different operating conditions, the power consumption of the whole vehicle and its various electrical devices is monitored in real time by a power analyzer. The average power consumption and average current of each electrical device per unit mileage or unit time are calculated to obtain the first data.

[0065] Among them, the low-voltage power consumption test uses high-precision power analyzers and other equipment to directly measure the real-time voltage, current and power of electrical equipment on the vehicle's circuitry, which can obtain more accurate first data.

[0066] Step 303: When both the vehicle and its environment meet the second test conditions, the vehicle is tested to obtain the second data from the first test data. The second test conditions are: the environment where the vehicle is located is at a first temperature and a first altitude, and the vehicle is in the process of charging. The second data are: the average current and average power consumption of each module in the vehicle under the second test conditions.

[0067] For example, the vehicle is in an environment with normal temperature and altitude, and the vehicle is charging. The input power, charging time and the actual power received by the vehicle are recorded by the charging pile and the power analyzer, respectively. The average power consumption and average current of each electrical device per unit time are calculated to obtain the second data.

[0068] Among them, the slow charging power consumption test can test the conversion efficiency, temperature rise, reliability and protection logic of the on-board charger (OBC), and for the whole vehicle, it can also evaluate the performance of the complete system including the on-board charger and battery management system.

[0069] Step 304: When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment is at the second temperature and the first altitude, and the operating state is the vehicle starting and stationary, the vehicle is tested to obtain the first intermediate data; the first intermediate data is the first maximum current and the first maximum power consumption of each module in the multiple modules of the vehicle.

[0070] For example, the vehicle is placed in an environmental simulation chamber, the ambient temperature in the environmental simulation chamber is set to 45°C and the ambient humidity is 80%. After the vehicle is kept still for 2 hours, the vehicle's air conditioning system is turned on and set to maximum cooling. The test is continued for 2 hours, and the maximum current and maximum power consumption of each device in the vehicle are recorded throughout the process to obtain the first intermediate data.

[0071] Step 305: When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment is at the third temperature and the first altitude, and the operating state is the vehicle starting and stationary, the vehicle is tested to obtain the second intermediate data; the second intermediate data are the second maximum current and the second maximum power consumption of each module in the multiple modules of the vehicle.

[0072] For example, the vehicle is placed in an environmental simulation chamber, the ambient temperature in the environmental simulation chamber is set to -30°C, the vehicle is kept still for 4 hours, the vehicle is started, and the maximum current and maximum power consumption of the whole vehicle and its various devices are recorded at the moment of start-up and within 10 minutes after start-up to obtain the second intermediate data.

[0073] Step 306: When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment being the first temperature and the second altitude, and the operating state being the vehicle in motion, the vehicle is tested to obtain the third intermediate data; the third intermediate data is the third maximum current and the third maximum power consumption of each module in the multiple modules of the vehicle.

[0074] For example, the vehicle is placed in an environmental simulation chamber, the ambient temperature in the environmental simulation chamber is set to normal temperature, the ambient air pressure is set to the air pressure environment at an altitude of 4000 meters, the vehicle is driven at a constant speed of 60km / h, and the maximum current and maximum power consumption of the whole vehicle and its various devices are monitored to obtain third intermediate data.

[0075] Step 307: Determine the third data based on the first intermediate data, the second intermediate data, and the third intermediate data; the current value of the third data is the maximum value among the first maximum current, the second maximum current, and the third maximum current, and the power consumption value of the third data is the maximum value among the first maximum power consumption, the second maximum power consumption, and the third maximum power consumption.

[0076] For example, when the vehicle is operating under high temperature, low temperature and high altitude conditions, each device of the vehicle obtains a first intermediate data, a second intermediate data and a third intermediate data respectively, and the maximum value of these data is determined as the third data of the device.

[0077] In one alternative implementation, for the vehicle's Battery Management System (BMS), the BMS obtains a first maximum current and a first maximum power consumption under high-temperature conditions, a second maximum current and a second maximum power consumption under low-temperature conditions, and a third maximum current and a third maximum power consumption under high-altitude conditions. The maximum value is determined from the first maximum current, the second maximum current, and the third maximum current, and the maximum value is determined from the first maximum power consumption, the second maximum power consumption, and the third maximum power consumption. This maximum value is used as the maximum current and maximum power consumption of the BMS under special operating conditions, which is the third data of the BMS.

[0078] Step 308: When both the vehicle and its environment meet the fourth test conditions, the vehicle is tested to obtain the fourth data in the first test data. The fourth test conditions are: the environment where the vehicle is located is at the first temperature and the first altitude, and the vehicle's operating state is that the vehicle's battery charge drops to the threshold and the vehicle is charged. The fourth data are the current and power consumption of the vehicle's battery under the fourth test conditions.

[0079] For example, when the vehicle is in an environment with normal temperature and altitude, the battery charge is reduced to a critical value, triggering the vehicle's intelligent charging function. During the charging process at a slow charging station, various electrical load combinations are simulated, such as turning on the headlights and entertainment system. The activation logic of the intelligent charging function is observed, and the power consumption of the generator, the current and voltage changes of the battery are tested during the charging process to verify the response capability of the intelligent charging function under complex working conditions.

[0080] Step 309: When both the vehicle and its environment meet the fifth test conditions, the vehicle is tested to obtain the fifth data in the first test data. The fifth test conditions are: the environment where the vehicle is located is at the first temperature and the first altitude, and the vehicle is in sleep mode. The fifth data is the average current of each module in the vehicle under the fifth test conditions.

[0081] For example, when the vehicle is in a normal temperature and altitude environment, after the vehicle is left idle for 30 minutes, all control modules are put into deep sleep mode. First, disconnect the negative terminal of the battery, and connect the current clamp in series between the negative terminal of the battery and the ground wire of the vehicle body, so that all current flows through this circuit. Test the static current of the battery after the vehicle has been parked for 1 hour, 6 hours, and 12 hours. This can help identify abnormal and unnecessary parasitic current consumption sources.

[0082] Step 310: Determine the second test data of the vehicle based on the first test data; the second test data is used to indicate: the sum of the current of multiple modules and the sum of the power consumption of multiple modules.

[0083] Step 311: Evaluate the vehicle's performance based on the second test data.

[0084] The specific steps of steps 301, 310 to 311 can be found in steps 201, 203 to 204, and will not be repeated here.

[0085] Based on the above, and after determining the second test data of the vehicle according to the first test data, this application provides an optional implementation method, such as... Figure 4 The flowchart of another vehicle performance evaluation method shown may specifically include the following steps 401 to 407.

[0086] Step 401, determine the test conditions for the vehicle; the test conditions are used to indicate: the operating status of the vehicle and the environment in which the vehicle is located.

[0087] Step 402: When both the vehicle and its environment meet the test conditions, the vehicle is tested to obtain the first test data; the first test data includes the current and power consumption of each module in the vehicle's multiple modules.

[0088] Step 403: Based on the first test data, determine the second test data of the vehicle; the second test data is used to indicate: the sum of the current of multiple modules and the sum of the power consumption of multiple modules.

[0089] Step 404: Obtain the low-voltage test data of the vehicle through the vehicle's sensors; the low-voltage test data includes the current and power consumption at the low-voltage end of the vehicle.

[0090] In this embodiment, the low-voltage test data refers to various key electrical parameters of the vehicle's 12V or 24V low-voltage electrical system. Specifically, the low-voltage test data includes current and power consumption directly obtained from a power analyzer under low-voltage power consumption testing, slow charging power consumption testing, special operating condition power consumption testing, intelligent charging testing, and static current testing.

[0091] Step 405: Determine the third test data based on the second test data and the low-voltage test data; the current value of the third test data is the difference between the current value of the second test data and the current value of the low-voltage test data, and the power consumption value of the third test data is the difference between the power consumption value of the second test data and the power consumption value of the low-voltage test data.

[0092] In this embodiment of the application, the third test data is the data that was not detected by the vehicle under low-voltage power consumption test, slow charging power consumption test, special working condition power consumption test, intelligent charging test, and static current test.

[0093] For example, the third test data is the difference between the second test data and the low-voltage test data. For instance, in the low-voltage power consumption test of the vehicle, the average current and average power consumption of various devices such as BMS, VCU, OBC, engine controller, motor controller, oil pump, and daytime running lights are obtained. The second detection data is the sum of the average current and the sum of the average power consumption of each device. The third detection data is the difference between the sum of the average current and the current of the low-voltage test data, and the difference between the sum of the average power consumption and the power consumption of the low-voltage test data.

[0094] Step 406: Obtain reference data for each module among multiple modules of the vehicle; In the embodiments of this application, the reference data are the test data of each module of the vehicle under standard operating conditions.

[0095] Based on the reference data, a quantitative basis is provided for the electrical load planning, architecture design and performance target setting of this vehicle model. Combined with the second test data, low voltage test data and third test data, the data is compared and analyzed horizontally or vertically, realizing the direct quantitative comparison of the energy consumption level of the vehicle models and judging the efficiency of the power system.

[0096] Step 407: Evaluate the vehicle's performance based on the reference data, the second test data, and the third test data.

[0097] For example, based on reference data, low-pressure test data, second test data, and third test data, a visualization chart or data report as shown in Table 1 can be generated to more intuitively compare the performance of multiple models in different test items.

[0098] As shown in Table 1, the components are BMS (Battery Management System), VCU (Vehicle Control Unit), OBC (On-Board Charger), ICC (Intelligent Cruise Control), IPB (Intelligent Integrated Braking System), and ESP (Electronic Stability Program).

[0099]

[0100] Table 1 Optionally, all test data can be encrypted and stored on a dedicated data storage server to ensure its security. The test data should be retained for at least five years to facilitate subsequent traceability and analysis.

[0101] Optionally, test data management standards should be established to clarify the processes for test data collection, entry, review, use, and deletion, ensuring the integrity and traceability of test data.

[0102] Optionally, test data can be backed up regularly, using a combination of local and cloud backups to prevent data loss.

[0103] The specific steps of steps 401 to 403 can be found in steps 201 to 203, and will not be repeated here.

[0104] To achieve the functions of the above embodiments, the vehicle performance evaluation method includes hardware structures and / or software modules corresponding to each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0105] exist Figures 2 to 4 Based on the vehicle performance evaluation method shown, the embodiments of this application also provide a vehicle performance evaluation device, such as... Figure 5 The schematic diagram of the vehicle performance evaluation device shown includes: an acquisition module 510, a testing module 520, a processing module 530, and an evaluation module 540.

[0106] The acquisition module 510 is used to determine the test conditions of the vehicle; the test conditions indicate: the operating status of the vehicle and the environment in which the vehicle is located; wherein, the acquisition module 510 may include, for example, Figure 1 The vehicle 101 shown includes the environmental simulation cabin and the slow-charging station in the second module 103.

[0107] Test module 520 is used to test the vehicle and its surrounding environment when both meet the test conditions, and obtain first test data. The first test data includes the current and power consumption of each module in the vehicle's multiple modules. Test module 520 may include, for example: Figure 1 The power analyzer, current clamp, and voltage recorder in vehicle 101, first module 102, and second module 103 shown.

[0108] Processing module 530 is configured to determine second test data for the vehicle based on first test data; the second test data indicates the sum of currents of multiple modules in the vehicle and the sum of power consumption of multiple modules in the vehicle; wherein, processing module 530 may include, for example, Figure 1 The vehicle 101 and the first module 102 are shown.

[0109] Evaluation module 540 is used to evaluate the performance of the vehicle based on the second test data; wherein, evaluation module 540 may include, for example, Figure 1 The vehicle 101 and the first module 102 are shown.

[0110] In some embodiments, the test module 520 includes: testing the vehicle when both the vehicle and the environment in which the vehicle is located meet the first test conditions, and obtaining first data in the first test data; the first test conditions are the environment in which the vehicle is located at a first temperature and a first altitude, and the vehicle's operating state is that the vehicle is in motion; the first data is the average current and average power consumption of each module in the vehicle's multiple modules under the first test conditions.

[0111] In some embodiments, the test module 520 includes: testing the vehicle when both the vehicle and the environment in which the vehicle is located meet the second test conditions, and obtaining second data from the first test data; the second test conditions are that the environment in which the vehicle is located is a first temperature and a first altitude, and the vehicle is in the process of charging; the second data is the average current and average power consumption of each module in the vehicle's multiple modules under the second test conditions.

[0112] In some embodiments, the test module 520 includes: testing the vehicle when the vehicle and its environment meet the third test conditions of a second temperature and a first altitude, and the vehicle is in a state of starting and stationary, to obtain first intermediate data; the first intermediate data is the first maximum current and the first maximum power consumption of each module among the vehicle's multiple modules; testing the vehicle when the vehicle and its environment meet the third test conditions of a third temperature and a first altitude, and the vehicle is in a state of starting and stationary, to obtain second intermediate data; the second intermediate data is the second maximum current and the second maximum power consumption of each module among the vehicle's multiple modules; testing the vehicle when the vehicle and its environment meet the third test conditions of a first temperature and a second altitude, and the vehicle is in a state of driving, to obtain third intermediate data; the third intermediate data is the third maximum current and the third maximum power consumption of each module among the vehicle's multiple modules; determining third data based on the first intermediate data, the second intermediate data, and the third intermediate data; the current value of the third data is the maximum value among the first maximum current, the second maximum current, and the third maximum current, and the power consumption value of the third data is the maximum value among the first maximum power consumption, the second maximum power consumption, and the third maximum power consumption.

[0113] In some embodiments, the test module 520 includes: testing the vehicle when both the vehicle and the environment in which the vehicle is located meet the fourth test conditions, and obtaining the fourth data in the first test data; the fourth test conditions are that the environment in which the vehicle is located is a first temperature and a first altitude, and the vehicle's operating state is that the vehicle's battery charge drops to a threshold and the vehicle is charged; the fourth data are the current and power consumption of the vehicle's battery under the fourth test conditions.

[0114] In some embodiments, the test module 520 includes: testing the vehicle when both the vehicle and the environment in which the vehicle is located meet the fifth test conditions, and obtaining the fifth data in the first test data; the fifth test conditions are that the environment in which the vehicle is located is a first temperature and a first altitude, and the vehicle's operating state is that the vehicle is in sleep mode; the fifth data is the average current of each module in the vehicle's multiple modules under the fifth test conditions.

[0115] In other embodiments, the processing module 530 includes: acquiring low-voltage test data of the vehicle through the vehicle's sensors; the low-voltage test data being the current and power consumption of the low-voltage terminal of the vehicle; determining third test data based on the second test data and the low-voltage test data; the current value of the third test data being the difference between the current of the second test data and the current of the low-voltage test data, and the power consumption value of the third test data being the difference between the power consumption of the second test data and the power consumption of the low-voltage test data.

[0116] In other embodiments, the processing module 530 further includes: acquiring reference data for each of the multiple modules of the vehicle; and evaluating the performance of the vehicle based on the reference data, second test data, and third test data.

[0117] According to one aspect of the embodiments of this application, Figure 6 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 6 As shown, the electronic device 600 includes a processor 610 and one or more memories 620. The one or more memories 620 are used to store program instructions executed by the processor 610. When the processor 610 executes the program instructions, it implements the interface processing method described above.

[0118] Furthermore, the processor 610 may include one or more processing cores. The processor 610 runs or executes instructions, programs, code sets, or instruction sets stored in the memory 620, and retrieves data stored in the memory 620. Optionally, the processor 610 may be implemented using at least one hardware form selected from Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 610 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the displayed content; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor and may be implemented using a separate communication chip.

[0119] According to one aspect of this application, a computer-readable storage medium is also provided, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device. The computer-readable storage medium carries computer-readable instructions that, when executed by a processor, implement the methods in any of the above embodiments.

[0120] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. Computer-readable storage media can be, for example, but not limited to: electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0121] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0122] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0123] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0124] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for evaluating vehicle performance, characterized in that, include: Determine the test conditions for the vehicle; the test conditions are used to indicate: the operating status of the vehicle and the environment in which the vehicle is located; When both the vehicle and the environment in which the vehicle is located meet the test conditions, the vehicle is tested to obtain first test data; the first test data includes the current and power consumption of each module in the multiple modules of the vehicle. Based on the first test data, determine the second test data for the vehicle; The second test data is used to indicate: the sum of the currents of the plurality of modules, and the sum of the power consumption of the plurality of modules; The performance of the vehicle is evaluated based on the second test data.

2. The method according to claim 1, characterized in that, When the test condition is the first test condition, and both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data, including: When both the vehicle and its surrounding environment meet the first test conditions, the vehicle is tested to obtain the first data in the first test data. The first test conditions are that the environment where the vehicle is located is at a first temperature and a first altitude, and the vehicle is in motion. The first data is the average current and average power consumption of each module in the multiple modules of the vehicle under the first test conditions.

3. The method according to claim 1, characterized in that, When the test condition is the second test condition, and both the vehicle and its environment meet the test condition, the vehicle is tested to obtain first test data, including: When both the vehicle and its surrounding environment meet the second test conditions, the vehicle is tested to obtain the second data from the first test data. The second test conditions are that the environment where the vehicle is located is at a first temperature and a first altitude, and the vehicle is in the process of charging. The second data is the average current and average power consumption of each module in the vehicle under the second test conditions.

4. The method according to claim 1, characterized in that, When the test condition is the third test condition, and both the vehicle and its environment meet the test condition, the vehicle is tested to obtain first test data, including: When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment being a second temperature and a first altitude, and the operating state being the vehicle starting and stationary, the vehicle is tested to obtain first intermediate data; the first intermediate data is the first maximum current and the first maximum power consumption of each module in the multiple modules of the vehicle. When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment being a third temperature and a first altitude, and the operating state being the vehicle starting and stationary, the vehicle is tested to obtain second intermediate data; the second intermediate data is the second maximum current and the second maximum power consumption of each module among the multiple modules of the vehicle. When the vehicle and the environment in which the vehicle is located meet the third test conditions, namely the environment being a first temperature and a second altitude, and the vehicle being in motion, the vehicle is tested to obtain third intermediate data; the third intermediate data is the third maximum current and the third maximum power consumption of each module in the multiple modules of the vehicle. Based on the first intermediate data, the second intermediate data, and the third intermediate data, the third data is determined; the current value of the third data is the maximum value among the first maximum current, the second maximum current, and the third maximum current, and the power consumption value of the third data is the maximum value among the first maximum power consumption, the second maximum power consumption, and the third maximum power consumption.

5. The method according to claim 1, characterized in that, When the test condition is the fourth test condition, and when both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data. The method further includes: When both the vehicle and its surrounding environment meet the fourth test conditions, the vehicle is tested to obtain the fourth data in the first test data. The fourth test conditions are that the environment where the vehicle is located is at a first temperature and a first altitude, and the vehicle is charged when its battery charge drops to a threshold. The fourth data are the current and power consumption of the vehicle's battery under the fourth test conditions.

6. The method according to claim 1, characterized in that, When the test condition is the fifth test condition, and when both the vehicle and the environment in which the vehicle is located meet the test condition, the vehicle is tested to obtain first test data. The method further includes: When both the vehicle and its surrounding environment meet the fifth test conditions, the vehicle is tested to obtain the fifth data in the first test data. The fifth test conditions are that the environment where the vehicle is located is at a first temperature and a first altitude, and the vehicle is in sleep mode. The fifth data is the average current of each module in the vehicle under the fifth test conditions.

7. The method according to claim 1, characterized in that, After determining the second test data of the vehicle based on the first test data, the method further includes: The low-voltage test data of the vehicle is acquired through the vehicle's sensors; the low-voltage test data is the current and power consumption at the low-voltage end of the vehicle. Based on the second test data and the low-voltage test data, the third test data is determined; the current value of the third test data is the difference between the current of the second test data and the current of the low-voltage test data, and the power consumption value of the third test data is the difference between the power consumption of the second test data and the power consumption of the low-voltage test data.

8. The method according to claim 7, characterized in that, The method for evaluating the performance of the vehicle based on the second test data further includes: Obtain reference data for each module among the multiple modules of the vehicle; The performance of the vehicle is evaluated based on the reference data, the second test data, and the third test data.

9. A vehicle performance evaluation device, characterized in that, The device includes: The acquisition module is used to determine the test conditions of the vehicle; the test conditions are used to indicate: the operating status of the vehicle and the environment in which the vehicle is located; The testing module is used to test the vehicle and obtain first test data when both the vehicle and the environment in which the vehicle is located meet the test conditions; the first test data includes the current and power consumption of each module in the multiple modules of the vehicle. The processing module is configured to determine second test data for the vehicle based on the first test data; the second test data is used to indicate: the sum of the currents of multiple modules of the vehicle, and the sum of the power consumption of multiple modules of the vehicle; An evaluation module is used to evaluate the performance of the vehicle based on the second test data.

10. An electronic device, characterized in that, The electronic device includes: processor; A memory storing computer-readable instructions that, when executed by the processor, implement the evaluation method as described in any one of claims 1 to 8.

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