Method for transmitting angle control signal, steering test system and storage medium

Abstract

The application discloses a kind of angle control signal sending method, steering test system and storage medium, wherein, it is applied to steering test system, the steering test system includes angle input steering wheel and angle sensor, the output port of the steering test system is used to connect the input end of the steering system of vehicle to be tested, the steps of the angle control signal sending method include: according to the angle value detected by the angle sensor, the rotation angle of the angle input steering wheel is determined;Test angle is determined according to the rotation angle;The test angle is sent to the steering system by the output port.The present application aims at improving the efficiency of angle control test.

Description

Technical Field

[0001] This invention relates to the field of vehicle steering testing, and more particularly to a method for transmitting angle control signals, a steering testing system, and a storage medium. Background Technology

[0002] Lane Keeping Assist (LKA) is an ADAS (Advanced Driving Assistance System) that assists drivers in keeping the vehicle within its lane markings. It uses environmental sensors to identify the vehicle's position relative to the center of the lane. If the vehicle deviates from its lane, it will warn the driver or intervene with automatic steering to bring the vehicle back into the lane.

[0003] During development and testing, it is necessary to verify whether the vehicle's lateral motion control meets the ADAS function's requirements for the accuracy of steering angle or torque control. Currently, a common approach is to use external testing equipment such as CANoe to send angle control mode commands to the EPS (Electric Power Steering) or EHPS (Electronic Hydrostatic Power Steering) system, controlling the vehicle's steering wheel to keep the vehicle within the lane. However, external testing equipment places high demands on the test personnel to achieve continuous angle control, resulting in very low efficiency in angle control testing.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a method for transmitting angle control signals, a steering test system, and a storage medium, with the aim of improving the efficiency of angle control testing.

[0006] To achieve the above objectives, the present invention provides a method for transmitting an angle control signal, applied to a steering test system. The steering test system includes an angle input steering wheel and an angle sensor. The output port of the steering test system is used to connect to the steering system input of the vehicle under test. The steps of the method for transmitting the angle control signal include:

[0007] The rotation angle of the steering wheel is determined based on the angle value detected by the angle sensor.

[0008] The test angle is determined based on the rotation angle.

[0009] The test angle is sent to the steering system through the output port.

[0010] Optionally, the step of determining the test angle based on the rotation angle includes:

[0011] Determine the rotation accuracy corresponding to the rotation angle;

[0012] The change in test angle corresponding to a unit rotation angle of the steering wheel is determined based on the rotation accuracy.

[0013] The test angle is determined based on the rotation angle and the change in test angle corresponding to the unit rotation angle.

[0014] Optionally, the steering test system further includes a shift paddle for adjusting the rotation accuracy of the steering wheel, and the step of determining the test angle based on the rotation angle includes:

[0015] Determine the rotation angle corresponding to each gear position of the gear shift lever;

[0016] The change in test angle corresponding to the unit rotation angle of the steering wheel in each gear is determined based on the rotation accuracy corresponding to each gear.

[0017] The test angle is determined by the sum of the products of the rotation angle corresponding to each gear and the change in test angle corresponding to the unit rotation angle of the steering wheel in each gear.

[0018] Optionally, the steering test system further includes an electronic display screen, and after the step of determining the test angle based on the rotation angle, it further includes:

[0019] The test angle is displayed on the electronic display screen;

[0020] When a confirmation command is received, the test angle is sent to the steering system through the output port.

[0021] Optionally, the method further includes:

[0022] Receive the target test angle;

[0023] When the test angle is equal to the target test angle, the step of sending the test angle to the steering system through the output port is executed.

[0024] Optionally, after the step of sending the test angle to the vehicle under test through the output port, the method further includes:

[0025] Obtain the actual angle at which the steering system controls the rotation of the vehicle under test;

[0026] The test results of the steering system of the vehicle under test are determined based on the actual angle and the test angle.

[0027] Optionally, after the step of obtaining the actual angle at which the steering system controls the rotation of the vehicle under test, the method further includes:

[0028] Determine the correspondence between multiple actual angles and multiple time points;

[0029] Generate the actual vehicle response curve based on the aforementioned correspondence;

[0030] The electronic display screen of the steering test system shows the response curve of the actual vehicle.

[0031] Optionally, the step of determining the test result of the steering system of the vehicle under test based on the actual angle and the test angle includes:

[0032] Obtain the preset response curve corresponding to the test angle;

[0033] The response time difference and response angle deviation are determined based on the preset response curve and the actual vehicle response curve.

[0034] The test results are determined based on the response time difference and the response angle deviation.

[0035] In addition, to achieve the above objectives, the present invention also provides a steering test system, the steering test system including a memory, a processor, and an angle control signal transmission program stored in the memory and executable on the processor, wherein when the angle control signal transmission program is executed by the processor, it implements the steps of the angle control signal transmission method as described above.

[0036] In addition, to achieve the above objectives, the present invention also provides a computer-readable storage medium storing an angle control signal transmission program, wherein the angle control signal transmission program, when executed by a processor, implements the steps of the angle control signal transmission method as described above.

[0037] This invention discloses a method for transmitting angle control signals, a steering test system, and a storage medium. The method configures a steering test system comprising an angle input steering wheel and an angle sensor that detects the rotation angle of the steering wheel. The output port of the steering test system is connected to the input terminal of the steering system of the vehicle under test. During the steering test, the rotation angle is determined based on the angle value detected by the angle sensor, and then the test angle to be output to the steering system is determined. The rotation of the steering system can be controlled based on the output test angle. This allows the tester to quickly set the test angle by turning the steering wheel, enabling continuous test angle output and continuous angle control of the steering system. This simulates the control of the steering system by an assisted driving system, improving the efficiency of angle control testing. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiments of the present invention;

[0039] Figure 2 This is a flowchart illustrating an embodiment of the angle control signal transmission method of the present invention;

[0040] Figure 3 This is a flowchart illustrating another embodiment of the angle control signal transmission method of the present invention;

[0041] Figure 4 This is a simplified structural diagram of the vehicle to be tested according to an embodiment of the present invention.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] In related technologies, sending angle control commands to the steering system using external testing equipment places high demands on testers, requiring strong programming skills to achieve continuous angle control, which makes angle control testing inefficient.

[0045] To improve the efficiency of angle control testing, this invention proposes a method for transmitting angle control signals, a steering test system, and a storage medium. The method is applied to a steering test system, which includes an angle input steering wheel and an angle sensor. The output port of the steering test system is used to connect to the steering system input of the vehicle under test. The steps of the method for transmitting angle control signals include:

[0046] The rotation angle of the steering wheel is determined based on the angle value detected by the angle sensor.

[0047] The test angle is determined based on the rotation angle.

[0048] The test angle is sent to the steering system through the output port.

[0049] This allows testers to quickly set the test angle by turning the steering wheel, enabling continuous test angle output and continuous angle control of the steering system, thus improving the efficiency of angle control testing.

[0050] The claims of this invention will be described in detail below with reference to the accompanying drawings.

[0051] like Figure 1 As shown, Figure 1 This is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiments of the present invention.

[0052] In this embodiment of the invention, the terminal can be a steering test system.

[0053] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU, a memory 1003, and a communication bus 1002. The communication bus 1002 is used to enable communication between these components. The memory 1003 may be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1003 may also be a storage device independent of the aforementioned processor 1001.

[0054] Those skilled in the art will understand that Figure 1 The terminal structure shown does not constitute a limitation on the terminal and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0055] like Figure 1 As shown, the memory 1003, which serves as a computer storage medium, may include an operating system and a program for transmitting angle control signals.

[0056] exist Figure 1 In the terminal shown, the processor 1001 can be used to call the angle control signal sending program stored in the memory 1003 and perform the following operations:

[0057] The rotation angle of the steering wheel is determined based on the angle value detected by the angle sensor.

[0058] The test angle is determined based on the rotation angle.

[0059] The test angle is sent to the steering system through the output port.

[0060] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0061] Determine the rotation accuracy corresponding to the rotation angle;

[0062] The change in test angle corresponding to a unit rotation angle of the steering wheel is determined based on the rotation accuracy.

[0063] The test angle is determined based on the rotation angle and the change in test angle corresponding to the unit rotation angle.

[0064] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0065] Determine the rotation angle corresponding to each gear position of the gear shift lever;

[0066] The change in test angle corresponding to the unit rotation angle of the steering wheel in each gear is determined based on the rotation accuracy corresponding to each gear.

[0067] The test angle is determined by the sum of the products of the rotation angle corresponding to each gear and the change in test angle corresponding to the unit rotation angle of the steering wheel in each gear.

[0068] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0069] The test angle is displayed on the electronic display screen;

[0070] When a confirmation command is received, the test angle is sent to the steering system through the output port.

[0071] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0072] Receive the target test angle;

[0073] When the test angle is equal to the target test angle, the step of sending the test angle to the steering system through the output port is executed.

[0074] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0075] Obtain the actual angle at which the steering system controls the rotation of the vehicle under test;

[0076] The test results of the steering system of the vehicle under test are determined based on the actual angle and the test angle.

[0077] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0078] Determine the correspondence between multiple actual angles and multiple time points;

[0079] Generate the actual vehicle response curve based on the aforementioned correspondence;

[0080] The electronic display screen of the steering test system shows the response curve of the actual vehicle.

[0081] Furthermore, the processor 1001 can call the angle control signal transmission program stored in the memory 1003, and also perform the following operations:

[0082] Obtain the preset response curve corresponding to the test angle;

[0083] The response time difference and response angle deviation are determined based on the preset response curve and the actual vehicle response curve.

[0084] The test results are determined based on the response time difference and the response angle deviation.

[0085] The following explanation, through specific exemplary solutions, clarifies the scope of protection claimed in the claims of this invention, so that those skilled in the art can better understand the scope of protection of the claims. It is understood that the following exemplary solutions do not limit the scope of protection of this invention, but are only used to explain this invention.

[0086] For example, refer to Figure 2 In one embodiment of the angle control signal transmission method of the present invention, the angle control signal transmission method is applied to a steering test system, the steering test system including an angle input steering wheel and an angle sensor, the output port of the steering test system being used to connect to the steering system input terminal of the vehicle under test, and the steps of the angle control signal transmission method include:

[0087] Step S10: Determine the rotation angle of the angle input steering wheel based on the angle value detected by the angle sensor;

[0088] In this embodiment, the method for sending the angle control signal is applied to a steering test system. The steering test system is used to perform angle control tests on the steering system of the vehicle under test. The steering test system includes an angle input steering wheel and an angle sensor. The angle input steering wheel and the main steering wheel used to control the vehicle's turning direction are two separate steering wheels. (Referring to...) Figure 4 The main steering wheel can be installed in the driver's cab, directly connected to the vehicle's steering system, controlling the vehicle's lateral movement and playing a primary role in controlling this movement. The angle input steering wheel can be installed in the passenger cab. This angle input steering wheel serves as the user interface for the steering test system, allowing testers to input angle values ​​by rotating the wheel. The test angle is then input into the vehicle's steering system, providing correction and assistance to the lateral movement controlled by the main steering wheel. The angle input steering wheel, installed in the passenger cab, allows testers to observe road conditions, determine whether the main steering wheel is controlling the vehicle's lateral movement, and provide accurate test angles that better simulate the assisted driving system's control effects. Using the angle input steering wheel as the user interface allows testers to continuously rotate the steering wheel, facilitating continuous linear test angles and better simulating the assisted driving system's control effects. In this way, the steering test system can correct the main steering wheel's control over lateral movement, simulating the angles output by the assisted driving system's steering control, improving the simulation's realism and ease of operation, and thus determining the steering system's response to the assisted driving system.

[0089] The steering test system also includes an angle sensor connected to the angle input steering wheel to detect the steering wheel's rotation angle. Specifically, the angle value detected by the angle sensor is acquired and used as the rotation angle of the angle input steering wheel.

[0090] Step S20: Determine the test angle based on the rotation angle;

[0091] In this embodiment, the rotation angle can characterize the amount of rotation of the steering wheel by the tester, so that the test angle that the tester wants to control the steering system can be determined based on the rotation angle.

[0092] Step S30: Send the test angle to the steering system through the output port.

[0093] In this embodiment, the output port of the steering test system is used to connect to the input port of the steering system of the vehicle under test. After determining the test angle, the steering system sends the test angle to the input port of the steering system through the output interface connected to the steering system of the vehicle under test. Upon receiving the test angle, the steering system adjusts the vehicle's steering based on the test angle.

[0094] The test angle is the final control parameter input to the steering system. Based on the rotation angle of the main steering wheel, the rotation angle of the steering system controlled by the main steering wheel is corrected by the test angle. This can intervene in the lateral movement of the vehicle to a certain extent, so that the vehicle changes its direction of travel. Based on the vehicle's behavior, the response of the steering system to the test angle can be determined, thereby simulating the response of the driver assistance system to the test angle.

[0095] Specifically, refer to Figure 4 The connection between the output port of the steering test system and the input port of the steering system of the vehicle under test also includes the ECU (Engine Control Unit). The ECU packages the test angle into a CAN message and sends the frame message to the input port of the steering system. The steering system receives the CAN message and executes the angle control mode to control the lateral movement of the vehicle according to the test angle.

[0096] In the technical solution disclosed in this embodiment, a steering test system is configured for steering testing, including an angle input steering wheel and an angle sensor that detects the rotation angle of the input steering wheel. The output port of the steering test system is used to connect to the input terminal of the steering system of the vehicle under test. During the steering test, the rotation angle is determined based on the angle value detected by the angle sensor, and then the test angle to be output to the steering system is determined. The rotation of the steering system can be controlled based on the output test angle. In this way, the tester can quickly set the test angle by turning the steering wheel, and continuous test angle output can be achieved, realizing continuous angle control of the steering system. This simplifies the control process of the simulated driver assistance system on the steering system and can also reflect the response of the steering system to the simulated driver assistance system, thus improving the efficiency of angle control testing.

[0097] Furthermore, in this embodiment, the step of determining the test angle based on the rotation angle includes:

[0098] Determine the rotation accuracy corresponding to the rotation angle;

[0099] The change in test angle corresponding to a unit rotation angle of the steering wheel is determined based on the rotation accuracy.

[0100] The test angle is determined based on the rotation angle and the change in test angle corresponding to the unit rotation angle.

[0101] The rotation angle characterizes the amount of rotation of the steering wheel when the angle is input. Since the tester determines the rotation angle by turning the steering wheel, and the test angle obtained from the rotation angle has different requirements, the rotation angle may not be equal to the test angle. When the tester needs a very accurate test angle, the rotation angle input to the steering wheel cannot have a large change in the test angle; however, when the tester does not need a very precise test angle and needs a large test angle, the rotation angle input to the steering wheel can have a large change in the test angle to reduce the tester's turning time. Therefore, the steering wheel rotation accuracy can be set. When determining the test angle, the rotation accuracy corresponding to the rotation angle is first determined. The rotation accuracy corresponding to the rotation angle refers to the rotation accuracy of the steering wheel when the rotation angle is obtained. Based on the rotation accuracy, the change in test angle per unit rotation angle is determined, and then the test angle is determined by the product of the rotation angle and the change in test angle.

[0102] By adjusting the rotation angle to achieve the required test angle, the tester can select different rotation accuracies and turn the steering wheel to achieve the required test angle more quickly or accurately, thus better meeting the test requirements and improving the efficiency of angle control testing.

[0103] Furthermore, the steering test system also includes a shift paddle for adjusting the rotation accuracy of the steering wheel, and the step of determining the test angle based on the rotation angle includes:

[0104] Determine the rotation angle corresponding to each gear position of the gear shift lever;

[0105] The change in test angle corresponding to the unit rotation angle of the steering wheel in each gear is determined based on the rotation accuracy corresponding to each gear.

[0106] The test angle is determined by the sum of the products of the rotation angle corresponding to each gear and the change in test angle corresponding to the unit rotation angle of the steering wheel in each gear.

[0107] The steering test system also includes a gear shift lever located on the angle input steering wheel, for reference. Figure 4The gear shift lever is used to adjust the sensitivity of the steering wheel rotation, and also to adjust the corresponding rotational precision of the steering wheel. In some implementations, the gear shift lever can have three positions. When the tester determines the desired angle (which can also be understood as the test angle) to be input to the steering system, they adjust the gear shift lever to make the steering wheel rotation angle closer to the desired angle, and the output test angle is also closer to the tester's desired angle. The process involves determining the rotation angle corresponding to each gear shift position; determining the change in test angle corresponding to a unit rotation angle of the steering wheel in each gear based on the rotational precision of each gear; and determining the test angle by summing the products of the rotation angle corresponding to each gear and the change in test angle corresponding to a unit rotation angle of the steering wheel in each gear. For example, if the tester desires a desired angle of 30.69°, in first gear (corresponding to a rotation accuracy of 0-360°), the tester rotates the steering wheel to 30 degrees, corresponding to a 30° test angle. In second gear (corresponding to a rotation accuracy of 0-36°), the tester rotates the steering wheel to 60°, corresponding to a 0.6° test angle. In third gear (corresponding to a rotation accuracy of 0-3.6°), the tester rotates the steering wheel to 90°, corresponding to a 0.09° test angle. Since the paddle shifters can adjust the corresponding rotation accuracy of the steering wheel, when there are multiple gears on the steering wheel, it is necessary to determine the corresponding test angle for each gear, and then accumulate the test angles for each gear to obtain the final test angle input to the steering system.

[0108] By setting multiple gear positions on the steering wheel according to the gear shift paddles, and correspondingly setting different rotation precision, testers can turn the steering wheel at different rotation precisions by adjusting the gear shift paddles, making it easier and more accurate to adjust to a test angle that is closer to or the same as the desired angle, thereby improving the efficiency of angle control testing.

[0109] Furthermore, the steering test system also includes an electronic display screen, and after the step of determining the test angle based on the rotation angle, it further includes:

[0110] The test angle is displayed on the electronic display screen;

[0111] When a confirmation command is received, the test angle is sent to the steering system through the output port.

[0112] The steering test system also includes an electronic display screen. This screen can be mounted in front of the angle input steering wheel for reference. Figure 4This allows testers to easily see the information displayed on the electronic display screen when adjusting the test angle. The electronic display screen shows the current steering wheel rotation angle at each gear position to determine the test angle. As the tester continues to adjust the steering wheel rotation angle, the test angle displayed on the electronic display screen will change. The tester can determine the current test angle by checking the displayed information, and then determine whether the test angle has reached the desired angle. If the desired angle has been reached, the tester can send a confirmation command to the steering test system. A corresponding confirmation button can be set on the electronic display screen or the steering wheel. When the tester finds that the test angle displayed on the electronic display screen has reached the desired value, they can click the confirmation button. The steering test system receives the confirmation command and then sends the test angle to the steering system through the output port.

[0113] By displaying the test angle in real time on an electronic screen, testers can quickly and accurately determine whether the test angle has been adjusted to the desired angle, and promptly send the test angle to the steering system to control the steering, thereby improving the efficiency of angle control testing.

[0114] Furthermore, the method also includes:

[0115] Receive the target test angle;

[0116] When the test angle is equal to the target test angle, the step of sending the test angle to the steering system through the output port is executed.

[0117] The steering test system can also receive the target test angle set by the tester in advance. The target test angle is a certain desired angle by the tester. When the determined test angle reaches the target test angle, the system can send the target test angle to the steering system.

[0118] It should be noted that this solution aims to continuously send test angles to the steering system, specifying the desired angle for the tester. The tester can change these desired angles at any time, and pre-setting a target test angle does not conflict with this. For example, the target test angle may be an angle that must be tested in the steering test, while other desired test angles can fluctuate based on the target angle and are randomly determined by the tester. Furthermore, the target test angle can be displayed on a display device for a direct comparison with the test angles.

[0119] When the test angle equals the target test angle, the step of sending the test angle to the steering system via the output port is executed. This eliminates the need for manual determination by the tester, thus improving the efficiency of angle control testing.

[0120] Optionally, refer to Figure 3Based on any of the above embodiments, in another embodiment of the angle control signal transmission method of the present invention, after step S30, the method further includes:

[0121] Step S40: Obtain the actual angle at which the steering system controls the rotation of the vehicle under test;

[0122] Step S50: Determine the test results of the steering system of the vehicle under test based on the actual angle and the test angle.

[0123] In this embodiment, after sending the test angle to the steering system via the output port, the steering system's rotation angle is corrected based on the rotation angle of the main steering wheel. This allows for some intervention in the vehicle's lateral movement, causing the vehicle to change its direction of travel. Based on the vehicle's observed movement, the steering system's response to the test angle can be determined. The movement pattern can be determined based on the actual angle at which the steering system controls the vehicle under test. The actual angle of the vehicle's rotation can be the vehicle body angle, wheel axle torque, or the relative angle between the vehicle body and lane lines. The steering test result can be determined based on the actual angle and the target angle of vehicle rotation corresponding to the test angle sent to the steering system, or by combining the target angle of vehicle rotation corresponding to multiple test angles sent to the steering system with the corresponding actual angle of vehicle rotation.

[0124] Alternatively, the determination can be made using scene images captured by multiple cameras installed at positions such as the front and sides of the vehicle under test. It can also be determined by a vehicle positioning system.

[0125] In the technical solution disclosed in this embodiment, the actual angle at which the steering system controls the rotation of the vehicle under test is obtained, and the test result of the steering system of the vehicle under test is determined based on the actual angle and the test angle. This allows for rapid determination of test results and improves the efficiency of angle control testing.

[0126] Furthermore, after step S40, the following steps are also included:

[0127] Determine the correspondence between multiple actual angles and multiple time points;

[0128] Generate the actual vehicle response curve based on the aforementioned correspondence;

[0129] The electronic display screen of the steering test system shows the response curve of the actual vehicle.

[0130] After sending a test angle to the steering system of the vehicle under test, the actual angles corresponding to each time point are determined. Then, the correspondence between the multiple actual angles and multiple time points is calculated. Finally, a real vehicle response curve is fitted to show the actual angle of vehicle rotation changing over time after the steering system of the vehicle under test is assisted by the test angle. The real vehicle response curve is then displayed on the electronic display screen of the steering test system.

[0131] This allows testers to directly view the actual vehicle response curve on the electronic display screen. By observing the actual vehicle response curve, they can quickly confirm the change in the actual angle of the vehicle's rotation after the steering system of the vehicle under test is controlled by the test angle, thereby quickly determining the test results and improving the efficiency of angle control testing.

[0132] Further, step S50 includes:

[0133] Obtain the preset response curve corresponding to the test angle;

[0134] The response time difference and response angle deviation are determined based on the preset response curve and the actual vehicle response curve.

[0135] The test results are determined based on the response time difference and the response angle deviation.

[0136] In this embodiment, preset response curves can be set for different test angles and the model of the vehicle under test. After the steering system of the vehicle under test is controlled by the test angle, a real vehicle response curve is generated. Then, the preset response curve and the real vehicle response curve corresponding to the test angle can be compared to determine the response time difference and response angle deviation of the vehicle steering system. When the response time difference and / or response angle deviation is less than or equal to the preset value, the steering system of the vehicle under test is determined to be qualified. When the response time difference or response angle deviation is greater than the preset value, the steering system of the vehicle under test is determined to be qualified.

[0137] By comparing the preset response curve with the actual vehicle response curve, the response time difference and response angle deviation can be determined, thereby accurately determining the test results and improving the efficiency of angle control testing.

[0138] Furthermore, this embodiment of the invention also proposes a steering test system, which includes a memory, a processor, and an angle control signal transmission program stored in the memory and executable on the processor. When the angle control signal transmission program is executed by the processor, it implements the steps of the angle control signal transmission method as described in the above embodiments.

[0139] Furthermore, embodiments of the present invention also propose a computer-readable storage medium storing a program for transmitting angle control signals. When the program for transmitting angle control signals is executed by a processor, it implements the steps of the angle control signal transmission method described in the above embodiments.

[0140] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0141] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0142] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause the test system to execute the methods described in the various embodiments of the present invention.

[0143] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for transmitting an angle control signal, characterized in that, An application is made to a steering test system, which includes an angle input steering wheel and an angle sensor. The output port of the steering test system is used to connect to the steering system input of the vehicle under test. The steps of the method for sending the angle control signal include: The rotation angle of the steering wheel is determined based on the angle value detected by the angle sensor. The test angle is determined based on the rotation angle. The test angle is sent to the steering system through the output port; The steering test system also includes a shift paddle for adjusting the rotation accuracy of the steering wheel, and the step of determining the test angle based on the rotation angle includes: Determine the rotation angle corresponding to each gear position of the gear shift lever; The change in test angle corresponding to the unit rotation angle of the steering wheel in each gear is determined based on the rotation accuracy corresponding to each gear. The test angle is determined by the sum of the products of the rotation angle corresponding to each gear and the change in test angle corresponding to the unit rotation angle of the steering wheel in each gear.

2. The method for transmitting angle control signals as described in claim 1, characterized in that, The step of determining the test angle based on the rotation angle includes: Determine the rotation accuracy corresponding to the rotation angle; The change in test angle corresponding to a unit rotation angle of the steering wheel is determined based on the rotation accuracy. The test angle is determined based on the rotation angle and the change in test angle corresponding to the unit rotation angle.

3. The method for transmitting angle control signals as described in claim 1, characterized in that, The steering test system also includes an electronic display screen. After the step of determining the test angle based on the rotation angle, the system further includes: The test angle is displayed on the electronic display screen; When a confirmation command is received, the test angle is sent to the steering system through the output port.

4. The method for transmitting angle control signals as described in claim 3, characterized in that, The method further includes: Receive target test angle; When the test angle is equal to the target test angle, the step of sending the test angle to the steering system through the output port is executed.

5. The method for transmitting angle control signals as described in claim 1, characterized in that, After the step of sending the test angle to the vehicle under test through the output port, the method further includes: Obtain the actual angle at which the steering system controls the rotation of the vehicle under test; The test results of the steering system of the vehicle under test are determined based on the actual angle and the test angle.

6. The method for transmitting angle control signals as described in claim 5, characterized in that, After the step of obtaining the actual angle at which the steering system controls the rotation of the vehicle under test, the method further includes: Determine the correspondence between multiple actual angles and multiple time points; Generate the actual vehicle response curve based on the aforementioned correspondence; The electronic display screen of the steering test system shows the response curve of the actual vehicle.

7. The method for transmitting angle control signals as described in claim 6, characterized in that, The step of determining the test result of the steering system of the vehicle under test based on the actual angle and the test angle includes: Obtain the preset response curve corresponding to the test angle; The response time difference and response angle deviation are determined based on the preset response curve and the actual vehicle response curve. The test results are determined based on the response time difference and the response angle deviation.

8. A steering test system, characterized in that, The steering test system includes: a memory, a processor, and an angle control signal transmission program stored in the memory and executable on the processor. When the angle control signal transmission program is executed by the processor, it implements the steps of the angle control signal transmission method as described in any one of claims 1 to 7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program for transmitting angle control signals, which, when executed by a processor, implements the steps of the method for transmitting angle control signals as described in any one of claims 1 to 7.

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