Detection method, device and equipment for vehicle internal adjusting equipment

Abstract

The invention provides a detection method, device and equipment for adjusting equipment in a vehicle, and is applied to the technical field of automobile manufacturing quality testing, and the method comprises the steps: sending an adjusting instruction to equipment to be tested through a vehicle machine control system, so as to drive an adjusting motor of the equipment to be tested to execute a corresponding adjusting action. The motor current and the corresponding motor temperature of the adjusting motor in the process of executing the adjusting action and the state parameter of the to-be-tested equipment after the adjusting action is executed are obtained. And determining a correction current interval for adjusting the motor according to the motor temperature. And determining that the adjusting function of the to-be-tested equipment is normal under the condition that the motor current is determined to belong to the corrected current interval and the state parameters accord with the expected state parameters corresponding to the adjusting instruction, so that the problems of relatively low detection efficiency and relatively low accuracy existing in a traditional detection method for the vehicle internal adjusting equipment can be solved.

Description

Technical Field

[0001] This application relates to the field of automotive manufacturing quality testing technology, and in particular to a testing method, apparatus and equipment for vehicle interior adjustment devices. Background Technology

[0002] With the rapid development of the automobile manufacturing industry, the quality inspection of vehicle assembly has become a crucial link in ensuring vehicle safety and comfort. In related technologies, the inspection of vehicle interior adjustment devices generally employs manual inspection methods or functional judgment mechanisms based on single sensor signals.

[0003] One method, manual inspection, involves an inspector manually triggering the adjustment switch of the corresponding device and visually or tactilely determining whether the device has performed the required action, such as moving or adjusting the angle. However, this method relies heavily on the inspector's experience and subjective judgment, resulting in low accuracy and efficiency.

[0004] The functional judgment mechanism based on a single sensor signal relies on a single sensor signal, such as a Hall sensor signal to determine whether the regulating device has reached the expected position, or a motor current signal to determine whether the motor has started, thus determining whether the regulating device's regulating function is normal. However, in actual operation, due to different environments, the motor starting current characteristics of the regulating device may deviate. Relying solely on the above methods can easily lead to misjudgments or missed judgments, resulting in low detection accuracy. Summary of the Invention

[0005] The purpose of this application is to provide a method, apparatus, and equipment for detecting vehicle interior adjustment devices, thereby solving the problems of low detection efficiency and low accuracy in traditional methods for detecting vehicle interior adjustment devices.

[0006] In a first aspect, embodiments of this application provide a method for testing in-vehicle adjustment devices. The method includes: sending an adjustment command to a device under test via a vehicle control system to drive the adjustment motor of the device under test to perform a corresponding adjustment action; acquiring the motor current, corresponding motor temperature, and state parameters of the device under test after the adjustment action is performed; determining a correction current range for the adjustment motor based on the motor temperature; and determining that the adjustment function of the device under test is normal if the motor current falls within the correction current range and the state parameters match the expected state parameters corresponding to the adjustment command.

[0007] The vehicle interior adjustment device testing method provided in this application sends adjustment commands to the device under test through the vehicle control system, driving the adjustment motor of the device under test to perform corresponding adjustment actions. When the device under test performs the corresponding adjustment actions, the adjustment function of the entire device under test is comprehensively evaluated by combining motor current, motor temperature, and the status parameters of the device under test, thus avoiding erroneous conclusions due to misjudgment of a single parameter. Simultaneously, by utilizing a temperature compensation mechanism to dynamically adjust the normal range of the motor current according to the motor temperature, the impact of ambient temperature changes on the motor is reduced, improving the testing accuracy of the device under test.

[0008] One possible implementation involves determining the correction current range for the regulating motor based on the motor temperature, including: obtaining the theoretical current required for the regulating motor to perform the regulating action; correcting the theoretical current based on the motor temperature to obtain the correction current required for the regulating motor to perform the regulating action; and determining the correction current range based on the correction current.

[0009] One possible implementation, the detection method for the vehicle interior adjustment device provided in this application embodiment, further includes: when it is determined that the motor current does not belong to the correction current range and / or the state parameters do not conform to the expected state parameters corresponding to the adjustment command, determining the cause of the abnormality of the device under test based on the motor current and state parameters.

[0010] One possible implementation involves using state parameters including the target angle of the adjustment action. Based on the motor current and state parameters, the cause of the anomaly in the device under test is determined, including obtaining the actual angle after the device performs the adjustment action. If the deviation between the target angle and the actual angle exceeds an angle deviation threshold, and the motor current is not within the correction current range, the cause of the anomaly in the device under test is determined to be a component inconsistency anomaly.

[0011] This possible approach, by accurately monitoring and analyzing the deviation between the actual angle and the preset target angle after the device performs the adjustment action, combined with whether the motor current is within the correction current range, can accurately identify problems with abnormal component consistency.

[0012] One possible implementation involves using at least two synchronously controlled motors as the regulating motors, where the state parameters include the response time difference between the at least two synchronously controlled motors. Based on the motor current and state parameters, the cause of the anomaly in the device under test is determined, including: if the response time difference exceeds a time difference threshold, and the difference in motor current changes between the synchronously controlled motors exceeds a motor current change difference threshold, then the cause of the anomaly in the device under test is determined to be a vehicle assembly anomaly.

[0013] One possible implementation of the vehicle interior adjustment device detection method provided in this application embodiment further includes: when the device under test receives adjustment commands multiple times consecutively, acquiring the state parameters of each adjustment motor performing the corresponding adjustment action. If the difference between all state parameters is determined to be greater than a difference threshold, the cause of the anomaly in the device under test is determined to be a software logic anomaly.

[0014] One possible implementation, the detection method for the vehicle interior adjustment device provided in this application embodiment, further includes: at any first moment during the adjustment motor's adjustment action, detecting whether the motor current at the first moment belongs to the correction current range for the first moment. If not, determining that the adjustment function of the device under test is abnormal, generating an abnormality warning to alert the adjustment motor mechanism to jamming.

[0015] Secondly, embodiments of this application provide a detection device for vehicle interior adjustment equipment, the device comprising: a sending module, an acquisition module, and a determination module.

[0016] The sending module is used to send adjustment commands to the device under test through the vehicle control system, so as to drive the adjustment motor of the device under test to perform corresponding adjustment actions.

[0017] The acquisition module is used to acquire the motor current, the corresponding motor temperature, and the status parameters of the device under test after the adjustment action is performed by the regulating motor during the adjustment process.

[0018] The determination module is used to determine the correction current range for adjusting the motor based on the motor temperature. If the motor current falls within the correction current range and the status parameters match the expected status parameters corresponding to the adjustment command, the adjustment function of the device under test is determined to be normal.

[0019] One possible implementation involves the module determining the correction current range for the regulating motor based on motor temperature. Specifically, this involves: obtaining the theoretical current required for the regulating motor to perform its regulating action; correcting the theoretical current based on the motor temperature to obtain the correction current required for the regulating motor to perform its regulating action; and determining the correction current range based on the correction current.

[0020] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further used to: determine the cause of the abnormality of the device under test based on the motor current and the state parameters when it is determined that the motor current does not belong to the correction current range and / or the state parameters do not conform to the expected state parameters corresponding to the adjustment command.

[0021] One possible implementation involves the state parameters including the target angle of the adjustment action. When determining the cause of an anomaly in the device under test based on the motor current and state parameters, the determination module specifically acquires the actual angle of the device under test after performing the adjustment action. If the deviation between the target angle and the actual angle exceeds an angle deviation threshold, and the motor current is not within the correction current range, the cause of the anomaly in the device under test is determined to be a component inconsistency anomaly.

[0022] One possible implementation involves using at least two synchronously controlled motors as the regulating motors, where the state parameters include the response time difference between the at least two synchronously controlled motors. Specifically, when determining the cause of the anomaly in the device under test based on the motor current and state parameters, the determination module is used to: determine that the cause of the anomaly in the device under test is a vehicle assembly anomaly if the response time difference exceeds a time difference threshold and the difference in motor current changes between the synchronously controlled motors exceeds a motor current change difference threshold.

[0023] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further configured to: acquire the state parameters of each adjustment motor performing the corresponding adjustment action when the device under test receives adjustment commands multiple times consecutively; and determine that the cause of the abnormality of the device under test is a software logic abnormality if the difference between all state parameters is greater than a difference threshold.

[0024] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further configured to: at any first moment during the adjustment motor's adjustment action, detect whether the motor current at the first moment belongs to the correction current range at the first moment. If not, determine that the adjustment function of the device under test is abnormal, generate an abnormality warning, and alert the adjustment motor mechanism to jamming.

[0025] Thirdly, embodiments of this application provide a detection device for vehicle interior adjustment devices. This detection device has the function of implementing the detection method for vehicle interior adjustment devices according to the first aspect or any possible implementation of the first aspect. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described function.

[0026] Fourthly, embodiments of this application provide a computer-readable storage medium storing instructions that, when executed on a computer, enable the computer to perform the detection method for the vehicle interior adjustment device described in the first aspect or any possible implementation thereof.

[0027] Fifthly, embodiments of this application provide a computer program product containing instructions that, when run on a computer, enable the computer to execute the detection method for the vehicle interior adjustment device described in the first aspect or any possible implementation thereof.

[0028] The technical effects of any of the design methods in aspects two through five can be found in aspect one or in different possible implementations of aspect one, and will not be repeated here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of this application; Figure 2 A schematic flowchart illustrating the testing of a vehicle interior adjustment device provided in this application embodiment; Figure 3 A schematic diagram of a detection device for a vehicle interior adjustment device provided in an embodiment of this application; Figure 4 This is a system architecture diagram for detecting a vehicle interior adjustment device, provided as an embodiment of this application. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] In related technologies, the detection of vehicle interior adjustment devices generally adopts manual detection methods or functional judgment mechanisms based on single sensor signals.

[0034] The manual inspection method primarily involves inspectors manually triggering the adjustment switches on the driver and passenger seats, visually or tactilely judging whether the seats are performing the corresponding actions. This method relies on the inspector's experience and subjective judgment, lacks quantifiable technical parameters, and makes it difficult to standardize and manage the inspection process. In actual production, due to the arbitrariness of manual inspection, it is prone to missed or incorrect inspections caused by failure to strictly follow the inspection work instructions. Furthermore, the adjustment and inspection of each device requires significant time, resulting in low efficiency and failing to meet the high-speed, continuous operation requirements of modern vehicle production lines.

[0035] For functional judgment mechanisms based on single sensor signals, this approach typically relies solely on single-dimensional data for state identification, failing to integrate multi-source information such as equipment position feedback, operating current curves, and ambient temperature, resulting in weak system anti-interference capabilities. For example, under fluctuating power supply voltage or low-temperature environments, the motor starting current characteristics may shift, and relying solely on threshold judgment can easily lead to false alarms or missed detections. Although some improvement schemes attempt to introduce current gradient analysis to improve detection sensitivity, they still lack the comprehensive evaluation capability for the equipment's mechanical structure status, guide rail assembly accuracy, and the consistency of motor output torque.

[0036] Based on this, embodiments of this application provide a method, apparatus, and device for testing in-vehicle adjustment devices. The method includes sending an adjustment command to the device under test via a vehicle control system to drive the adjustment motor of the device under test to perform a corresponding adjustment action. The method acquires the motor current, corresponding motor temperature, and state parameters of the device under test after the adjustment action is performed. Based on the motor temperature, a correction current range for the adjustment motor is determined. If the motor current falls within the correction current range and the state parameters match the expected state parameters corresponding to the adjustment command, the adjustment function of the device under test is determined to be normal.

[0037] The vehicle interior adjustment device testing method provided in this application sends adjustment commands to the device under test through the vehicle control system, driving the adjustment motor of the device under test to perform corresponding adjustment actions. When the device under test performs the corresponding adjustment actions, the adjustment function of the entire device under test is comprehensively evaluated by combining motor current, motor temperature, and the status parameters of the device under test, thus avoiding erroneous conclusions due to misjudgment of a single parameter. Simultaneously, by utilizing a temperature compensation mechanism to dynamically adjust the normal range of the motor current according to the motor temperature, the impact of ambient temperature changes on the motor is reduced, improving the testing accuracy of the device under test.

[0038] The solutions provided in the embodiments of this application will be described below with specific examples.

[0039] On the one hand, embodiments of this application provide a vehicle. For example... Figure 1 As shown, the vehicle 100 may include a vehicle infotainment system 101 and a device under test 102. The vehicle infotainment system 101 and the device under test 102 are communicatively connected.

[0040] The vehicle infotainment system 101 is the central control system of the vehicle 100. It integrates various functions, such as driver assistance, entertainment, and vehicle status monitoring. The vehicle infotainment system 101 communicates with the vehicle's internal devices via a vehicle communication network, such as a CAN bus. The vehicle infotainment system 101 can send control commands (such as the adjustment commands described in this application) to the device under test 102 via the communication network to drive the device under test 102 and receive feedback information from the device under test 102.

[0041] The device under test 102 can be an adjustable device inside a vehicle. The device under test 102 may include an automatically adjustable seat and rearview mirrors. The automatically adjustable seat can be personalized according to the user's height, body type, and driving habits to provide optimal driving comfort and safety. The rearview mirrors can automatically or manually adjust their angle according to the driver's position and line of sight requirements to provide the user with a good field of vision.

[0042] Meanwhile, the device under test 102 integrates an adjustment motor, sensors, and a control unit. Upon receiving adjustment commands from the vehicle control system 101, the device under test 102 can drive the adjustment motor to perform corresponding adjustment actions and provide real-time feedback on its status parameters. For example, the seat adjustment motor can adjust the seat angle, height, and fore-aft position according to commands from the vehicle control system 101; the rearview mirror actuator can adjust the horizontal and vertical angles of the rearview mirror according to commands.

[0043] It should be noted that the above Figure 1 The vehicle 100 shown is merely an example illustrating the application scenario of this application solution, and is not intended to limit the application scenario of this application solution.

[0044] On the one hand, embodiments of this application provide a method for detecting vehicle interior adjustment devices, which can be performed by... Figure 1 The vehicle 100 shown is performing the operation. (As...) Figure 2 As shown, the method may include the following steps.

[0045] S201 sends adjustment commands to the device under test through the vehicle control system to drive the adjustment motor of the device under test to perform corresponding adjustment actions.

[0046] The adjustment instructions can be generated based on user input or preset adjustment requirements.

[0047] Specifically, users can issue test items for adjusting the device under test through the cloud platform. The intelligent testing software generates adjustment instructions based on the test items and sends these instructions to the vehicle control system. The vehicle control system then generates corresponding adjustment instructions based on these test items and sends them to the device under test.

[0048] After receiving an adjustment command, the control unit of the device under test will drive the adjustment motor to perform the corresponding adjustment action. For example, a seat adjustment device can parse the adjustment command to determine the angle, height, or fore-aft position that needs to be adjusted, and then adjust the angle, height, or position of the seat; a rearview mirror adjustment device will parse the command to determine the horizontal or vertical angle that needs to be adjusted.

[0049] S202, acquire the motor current, corresponding motor temperature, and status parameters of the device under test after the adjustment action is performed by the regulating motor during the adjustment process.

[0050] Specifically, during the process of the device under test driving the regulating motor to perform the corresponding regulating action, the device under test will monitor its internal motor current, motor temperature, and device status parameters in real time, and feed these parameters back to the vehicle control system in real time. After receiving the motor current, motor temperature, and status parameters, the vehicle control system will send them to the intelligent detection software, which will then upload them to the cloud platform.

[0051] S203 determines the correction current range for adjusting the motor based on the motor temperature.

[0052] Specifically, after receiving the motor temperature data, the cloud platform obtains the theoretical current required to adjust the motor's operating action. The theoretical current is then corrected based on the motor temperature to obtain the corrected current for the motor's operating action. Based on this corrected current, the corrected current range is determined.

[0053] For example, after receiving the motor temperature data uploaded by the vehicle control system, the cloud platform first retrieves the theoretical current value of the adjusting motor when performing the adjustment action from the database. This theoretical current can be a pre-calculated value based on factors such as the motor's design parameters, load conditions, and standard ambient temperature. The theoretical current represents the current level of the motor under ideal conditions and standard temperature environments during normal operation. For instance, for a specific model of seat adjustment motor, the theoretical current during seat tilting can be calculated based on the motor's rated power, mechanical load, and an ambient temperature of 25 degrees Celsius.

[0054] During actual operation, the operating temperature of the motor in the device under test may vary depending on the vehicle's environmental conditions (such as high or low temperatures, and the status of the vehicle's air conditioning). Therefore, relying solely on the theoretical current to assess the motor's operating status may lead to misjudgment. To more accurately evaluate the motor's actual operating condition, the cloud platform corrects the theoretical current based on the received motor temperature.

[0055] The cloud platform corrects the theoretical current based on the temperature coefficient of the motor windings and changes in ambient temperature, resulting in a corrected current. Simultaneously, a tolerance range is set for the corrected current, resulting in a corrected current interval. This tolerance range can be determined based on factors such as individual differences in the motor, measurement errors, and fluctuations during actual operation.

[0056] For example, the correction current can be determined by the following formula: ΔImax = Ibase × [1 + α(Tamb -25)].

[0057] Where ΔImax is the corrected current, Ibase is the theoretical current, Tamb is the ambient temperature, and α is the winding temperature coefficient correction factor. It should be noted that α is determined based on the winding material; for example, α = 0.003℃ for copper windings. -1 .

[0058] Furthermore, at any given moment during the adjustment process of the regulating motor, it is detected whether the motor current at that moment falls within the correction current range for that moment. If the motor current at that moment does not fall within the correction current range for that moment, it is determined that the adjustment function of the device under test is abnormal, and an abnormality warning is generated to alert the regulating motor mechanism to jamming. Here, the first moment can be any moment during the adjustment process of the regulating motor.

[0059] Specifically, the cloud platform acquires the actual current of the regulating motor at each first moment and compares this actual current with the correction current range corresponding to that first moment. This correction current range is determined based on the motor temperature at that first moment.

[0060] If, during the adjustment process, the actual current of the motor is detected to be outside the correction current range corresponding to the first moment, meaning the motor current exceeds the normal current range, it can be determined that the adjustment function of the device under test is malfunctioning. For example, the motor may have mechanical lag or other issues, affecting its normal operation. Therefore, to promptly alert the user and allow for appropriate measures, the cloud platform generates an anomaly warning message.

[0061] S204. If it is determined that the motor current is within the correction current range and the status parameters meet the expected status parameters corresponding to the adjustment command, the adjustment function of the device under test is determined to be normal.

[0062] Furthermore, if it is determined that the motor current does not belong to the correction current range and / or the state parameters do not conform to the expected state parameters corresponding to the adjustment command, the cause of the abnormality of the equipment under test is determined based on the motor current and state parameters.

[0063] One possible implementation involves using state parameters including the target angle of the adjustment action. The actual angle of the device under test after performing the adjustment action is obtained. If the deviation between the target angle and the actual angle exceeds an angle deviation threshold, and the motor current is not within the correction current range, the cause of the anomaly in the device under test is determined to be abnormal component consistency.

[0064] Specifically, the actual angle of the device under test after performing the adjustment action is obtained and compared with the target angle. If the adjustment angle deviation between the target angle and the actual angle exceeds the preset angle deviation threshold, and the motor current is not within the correction current range, the cause of the anomaly can be determined to be abnormal component consistency. For example, manufacturing defects or wear in the motor, gears, or other mechanical parts may prevent the device under test from accurately reaching the expected adjustment position.

[0065] For example, if the angle deviation exceeds the preset threshold and the current fluctuation exceeds the limit by 20% for more than 300ms, the cause of the abnormality can be determined to be abnormal component consistency.

[0066] Another possible implementation involves using at least two synchronously controlled motors, where the state parameters include the response time difference between the two synchronously controlled motors. If the response time difference exceeds a time difference threshold, and the difference in motor current changes between the synchronously controlled motors exceeds a motor current change difference threshold, the cause of the anomaly in the device under test is determined to be a vehicle assembly anomaly.

[0067] Specifically, if the response time difference exceeds a preset time difference threshold, and the difference in motor current changes between the synchronously regulating motors exceeds a motor current change difference threshold, the system will determine that the abnormality is due to an abnormality in vehicle assembly. This may indicate that during vehicle manufacturing, the motor's installation position is incorrect or there is a problem with the electrical connection, causing the motors to fail to operate synchronously.

[0068] For example, the vehicle's rearview mirror adjustment system is driven by two synchronous adjustment motors, controlling the left and right rearview mirrors respectively. Under normal circumstances, these two synchronous adjustment motors operate synchronously to ensure that the left and right rearview mirrors are adjusted to the user-set positions simultaneously. During actual testing, it was found that the response time difference between the left and right rearview mirror adjustment motors exceeded 200 milliseconds, and the current variation range of the left rearview mirror adjustment motor was 1.2A to 2.5A, while that of the right rearview mirror adjustment motor was 1.8A to 3.0A. The difference in current variation between these two motors exceeded the preset threshold for motor current variation difference, indicating that the abnormality in the rearview mirror adjustment system was due to an assembly abnormality in the vehicle.

[0069] Another possible implementation involves acquiring the status parameters of the motor performing the corresponding adjustment action each time the device under test receives adjustment commands multiple times. If the difference between all status parameters exceeds a difference threshold, the cause of the anomaly in the device under test is determined to be a software logic anomaly.

[0070] Specifically, the same adjustment command is sent to the device under test multiple times consecutively, and the state parameters of the motor are obtained after each adjustment action. If the difference in state parameters under multiple consecutive identical adjustment commands is less than the difference threshold, it can be determined that the device under test has a software logic anomaly. For example, there may be an error in the algorithm or command sequence in the control software, causing the device under test to fail to respond correctly to the adjustment command.

[0071] For example, if the difference in the results of executing the same instruction three times in a row is greater than 15%, it can be determined that the software logic is abnormal.

[0072] In this process, motor current, motor temperature, and status parameters can be matched with a pre-built cloud-based knowledge graph to quickly diagnose potential faults in the device under test. This cloud-based knowledge graph is constructed by collecting and organizing a large amount of equipment operating data, fault cases, and related characteristic information. This data can include the device's operating status, sensor data, fault codes, user feedback, etc. For example, fault code E0X1 corresponds to a fault in the driver's seat backrest adjustment motor. Fault code E0X2 corresponds to an abnormal LIN bus duty cycle and overcurrent protection trigger frequency > 3 times / min. Fault code E001 corresponds to a right mirror X-axis positioning misalignment and left Hall sensor noise peak > 50mV. Fault code E002 corresponds to an abnormal LIN bus duty cycle and overcurrent protection trigger frequency > 3 times / min.

[0073] This process utilizes cloud-based knowledge graphs to build and accumulate historical cases to form a fault mode library and achieves second-level matching, which can improve the detection efficiency and accuracy of vehicle interior adjustment devices.

[0074] Furthermore, during the process of the device under test driving the regulating motor to perform corresponding adjustment actions, the monitoring and diagnosis of the device's operating status are achieved by integrating the motor drive current characteristic curve and spatial position feedback information. The motor drive current characteristic curve records the change in motor current over time during operation. The spatial position feedback information indicates the actual positional changes of the device under test during the adjustment process.

[0075] Specifically, during the process of the device under test driving the regulating motor to perform corresponding regulating actions, current data from the motor and position data from the device are collected using current and position sensors, respectively. Then, it is ensured that these two types of data are synchronized in time. Finally, the operating status of the device is evaluated by comprehensively analyzing the current and position data. For example, if the current is normal but the position deviation is too large, it may be a mechanical component problem; if the current is abnormal but the position is normal, it may be an electrical connection problem.

[0076] For example, taking a seat adjustment system as an example, by monitoring the current changes of the seat adjustment motor and the actual position of the seat, it can be ensured that the seat can accurately reach the position set by the user. In a rearview mirror adjustment system, by monitoring the current changes of the rearview mirror adjustment motor and the actual angle of the rearview mirror, it can be ensured that the rearview mirror can be accurately adjusted to the angle set by the user.

[0077] The above primarily describes the solutions provided in this application from the perspective of the working principle of the device. It is understood that the detection device for the vehicle interior adjustment equipment includes corresponding hardware structures and / or software modules to perform each function in order to achieve the above-mentioned functions. Those skilled in the art should readily recognize that, based on the algorithm steps of the examples described in conjunction with the embodiments disclosed herein, 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 and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0078] This application embodiment can divide the detection equipment for the vehicle interior adjustment device into functional modules according to the above method example. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module.

[0079] It should be noted that the module division in this embodiment is illustrative and represents only one logical functional division; in actual implementation, other division methods may be used. When dividing functional modules according to their respective functions, Figure 3 A schematic diagram of a possible composition of the detection device for the vehicle interior adjustment equipment involved in the above and embodiments is shown. Figure 3 As shown, the detection device 300 for the vehicle interior adjustment equipment may include: a sending module 301, an acquisition module 302, and a determination module 303.

[0080] The sending module 301 is used to support the detection device 300 of the vehicle interior adjustment equipment in execution. Figure 2 S201 in the illustrated method for testing vehicle interior adjustment equipment.

[0081] Acquisition module 302 is used to support the execution of the detection device 300 for vehicle interior adjustment equipment. Figure 2 S202 in the illustrated test method for vehicle interior adjustment equipment.

[0082] Determining module 303 is used to support the execution of the detection device 300 for vehicle interior adjustment equipment. Figure 2 S203 and S204 in the illustrated test method for vehicle interior adjustment equipment.

[0083] One possible implementation involves the module determining the correction current range for the regulating motor based on motor temperature. Specifically, this involves: obtaining the theoretical current required for the regulating motor to perform its regulating action; correcting the theoretical current based on the motor temperature to obtain the correction current required for the regulating motor to perform its regulating action; and determining the correction current range based on the correction current.

[0084] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further used to: determine the cause of the abnormality of the device under test based on the motor current and the state parameters when it is determined that the motor current does not belong to the correction current range and / or the state parameters do not conform to the expected state parameters corresponding to the adjustment command.

[0085] One possible implementation involves the state parameters including the target angle of the adjustment action. When determining the cause of an anomaly in the device under test based on the motor current and state parameters, the determination module specifically acquires the actual angle of the device under test after performing the adjustment action. If the deviation between the target angle and the actual angle exceeds an angle deviation threshold, and the motor current is not within the correction current range, the cause of the anomaly in the device under test is determined to be a component inconsistency anomaly.

[0086] One possible implementation involves using at least two synchronously controlled motors as the regulating motors, where the state parameters include the response time difference between the at least two synchronously controlled motors. Specifically, when determining the cause of the anomaly in the device under test based on the motor current and state parameters, the determination module is used to: determine that the cause of the anomaly in the device under test is a vehicle assembly anomaly if the response time difference exceeds a time difference threshold and the difference in motor current changes between the synchronously controlled motors exceeds a motor current change difference threshold.

[0087] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further configured to: acquire the state parameters of each adjustment motor performing the corresponding adjustment action when the device under test receives adjustment commands multiple times consecutively; and determine that the cause of the abnormality of the device under test is a software logic abnormality if the difference between all state parameters is greater than a difference threshold.

[0088] In one possible implementation, the detection device for the vehicle interior adjustment equipment provided in this application embodiment is further configured to: at any first moment during the adjustment motor's adjustment action, detect whether the motor current at the first moment belongs to the correction current range at the first moment. If not, determine that the adjustment function of the device under test is abnormal, generate an abnormality warning, and alert the adjustment motor mechanism to jamming.

[0089] The vehicle interior adjustment device 300 provided in this application embodiment is used to perform the above-mentioned... Figure 2 The method for testing vehicle interior adjustment devices shown can achieve the same effect as the method for testing vehicle interior adjustment devices described above.

[0090] This application also provides a detection device for vehicle interior adjustment devices, which can perform the detection method and related steps for vehicle interior adjustment devices described in the above method embodiments.

[0091] This application also provides a computer-readable storage medium storing instructions that, when executed, perform the detection method and related steps of the vehicle interior adjustment device in the above method embodiments.

[0092] This application also provides a computer program product that, when run on a computer, causes the computer to execute the detection method and related steps of the vehicle interior adjustment device described in the above method embodiments.

[0093] In some embodiments, the methods shown in this application can be implemented as computer program instructions encoded in a machine-readable format on a computer-readable storage medium or on other non-transitory media or articles of art.

[0094] This application embodiment also provides a detection system 400 for vehicle interior adjustment devices, such as... Figure 4 As shown, the detection system 400 for the vehicle interior adjustment equipment includes at least one processor 401 and at least one interface circuit 402.

[0095] As an example, when the detection system 400 for the vehicle's interior adjustment equipment includes a processor and an interface circuit, the processor can be... Figure 4 The processor 401 shown in the solid box (or the processor 401 shown in the dashed box) can be an interface circuit. Figure 4 The interface circuit 402 is shown in the solid box (or the dashed box). When the detection system 400 for the vehicle's interior adjustment equipment includes two processors and two interface circuits, then the two processors include... Figure 4 The processor 401 shown in the solid box and the processor 401 shown in the dashed box, these two interface circuits include Figure 4 Interface circuit 402 is shown in both solid and dashed boxes. No limitations are imposed on this.

[0096] Processor 401 and interface circuit 402 can be interconnected via a line. For example, interface circuit 402 can be used to receive signals. Alternatively, interface circuit 402 can be used to send signals to other devices (e.g., processor 401). For instance, interface circuit 402 can read computer instructions stored in memory and send those instructions to processor 401. Processor 401 executes the instructions and, in conjunction with input / output devices, implements the various steps in the above embodiments, such as implementing... Figure 2 The methods illustrated are the steps performed in the embodiments shown. Of course, the detection system for the vehicle interior adjustment equipment may also include other discrete components, and this application does not specifically limit this.

[0097] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0098] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0099] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0100] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0101] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, or the part that contributes to it, or all or part of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0102] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A detection method of a vehicle interior conditioning device, characterized by, The method comprises: sending an adjustment instruction to a to-be-tested device through a vehicle control system to drive an adjustment motor of the to-be-tested device to perform a corresponding adjustment action; obtaining motor current of the adjustment motor in the process of performing the adjustment action, corresponding motor temperature, and state parameters of the to-be-tested device after performing the adjustment action; determining a corrected current interval of the adjustment motor according to the motor temperature; in a case where it is determined that the motor current belongs to the corrected current interval and the state parameters meet expected state parameters corresponding to the adjustment instruction, determining that an adjustment function of the to-be-tested device is normal.

2. The method of claim 1, wherein, The method further comprises: in a case where it is determined that the motor current does not belong to the corrected current interval and / or the state parameters do not meet the expected state parameters corresponding to the adjustment instruction, determining an abnormal reason of the to-be-tested device according to the motor current and the state parameters. The state parameters comprise a target angle of the adjustment action; and the method further comprises: obtaining an actual angle of the to-be-tested device after performing the adjustment action; 3. The method of claim 1, wherein, in a case where it is determined that an adjustment angle deviation between the target angle and the actual angle exceeds an angle deviation threshold value and the motor current does not belong to the corrected current interval, determining that the abnormal reason of the to-be-tested device is a component consistency abnormality. The adjustment motor is at least two synchronous adjustment motors; the state parameters comprise a response time difference of the at least two synchronous adjustment motors; and the method further comprises:

4. The method of claim 3, wherein, in a case where it is determined that the response time difference exceeds a time difference threshold value and a motor current change difference between the synchronous adjustment motors exceeds a motor current change difference threshold value, determining that the abnormal reason of the to-be-tested device is a vehicle assembly abnormality. The method further comprises: in a case where the to-be-tested device continuously receives the adjustment instruction for multiple times, obtaining state parameters of the adjustment motor in each time when performing a corresponding adjustment action; 5. The method of claim 3, wherein, in a case where it is determined that a difference degree of all the state parameters is greater than a difference degree threshold value, determining that the abnormal reason of the to-be-tested device is a software logic abnormality. The method further comprises:

6. The method of claim 1, wherein, at any first time point in the process of the adjustment motor performing the adjustment action, detecting whether motor current at the first time point belongs to a corrected current interval at the first time point; if not, determining that the adjustment function of the to-be-tested device is abnormal, and generating an abnormality warning to remind mechanism jamming of the adjustment motor. The device comprises:

7. The method of claim 1, wherein, a sending module configured to send an adjustment instruction to a to-be-tested device through a vehicle control system to drive an adjustment motor of the to-be-tested device to perform a corresponding adjustment action; ​ ​ 8. A detection device for vehicle interior adjustment equipment, characterized in that, ​ ​ An acquisition module is configured to acquire a motor current of the adjusting motor, a corresponding motor temperature during execution of the adjusting action, and a state parameter of the device to be tested after execution of the adjusting action. A determination module is configured to determine a corrected current interval of the adjusting motor according to the motor temperature, and determine that the adjusting function of the device to be tested is normal in a case where the motor current belongs to the corrected current interval and the state parameter meets an expected state parameter corresponding to the adjusting instruction.

9. A testing device for vehicle interior adjustment equipment, characterized in that, The detection device of the vehicle interior adjusting device includes a processor and a memory, the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to implement the detection method of the vehicle interior adjusting device according to any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the detection method of the vehicle interior adjusting device according to any one of claims 1 to 7.

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