Vehicle steering detection system and method of operation

Abstract

The invention relates to a vehicle steering detection system which comprises an embedded box body arranged underground in a detection area. Two box body cavities and two middle partition cavities are arranged in the box body. A rotating seat is arranged in the chamber of the box body, and a tire seat is arranged on the rotating seat. One side of the rotating seat is connected with a transverse movable rod which is provided with a fixing piece, and an ultrasonic distance measuring sensor is arranged on the side wall of the middle partition cavity. The system also includes an angle sensor secured to a steering wheel of the vehicle. The ultrasonic distance measuring sensor and the angle sensor are both connected to an upper computer, the upper computer receives steering wheel rotation angle data and horizontal movement distance data of the transverse movable rod, and the precision of the steering wheel steering system is determined by comparing the data deviation of the two data. By combining a mechanical structure and an electronic sensor technology, various parameters in the vehicle steering process are monitored in real time, and the precision of the steering system is determined through data analysis, so that a scientific basis is provided for maintenance and improvement of the vehicle steering system.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle detection, and in particular to a vehicle steering detection system and an operating method. Background Art

[0002] With the advancement of science and technology and the development of society, people have higher and higher requirements for automobile safety. As one of the important components of a car, the performance of the vehicle steering system is directly related to the driver's safety and comfort experience. Traditional vehicle steering systems mainly rely on mechanical structures. In recent years, with the application of electronic technology, more and more electronic assisted steering systems (such as EPS, Electric Power Steering) have been introduced into vehicle design. These systems not only improve the steering sensitivity and response speed, but also increase the stability of vehicle control.

[0003] However, both the traditional hydraulic power steering system and the modern electric power steering system need to be regularly inspected to ensure that they are in good working condition. The traditional method is usually to conduct inspections through manual observation or simple equipment. This method is not only time-consuming and labor-intensive, but also often difficult to accurately evaluate the actual working conditions of the steering system due to the lack of accurate data support. In addition, with the development of autonomous driving technology, the accuracy requirements for vehicle steering systems have become more stringent, which requires more accurate and efficient detection methods.

[0004] Existing vehicle steering detection methods and technologies have the following main problems: Low detection accuracy: Traditional methods rely on experience or simple tool measurements, which are difficult to achieve high-precision requirements, especially when detecting small changes.

[0005] Low detection efficiency: Manual testing is not only time-consuming and labor-intensive, but also inefficient when applied on a large scale and cannot meet the needs of rapid testing.

[0006] Insufficient automation: The existing detection methods have a low degree of automation and cannot achieve a continuous and automated detection process, which is not conducive to the integration of modern production lines.

[0007] Limited data processing capabilities: Existing testing equipment is often unable to process large amounts of data in real time, resulting in analysis results that are not timely and accurate enough. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a vehicle steering detection system and an operating method, which aims to achieve real-time monitoring of various parameters in the vehicle steering process by combining mechanical structure and electronic sensor technology, and determine the accuracy of the steering system through data analysis, thereby providing a scientific basis for the maintenance and improvement of the vehicle steering system.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vehicle turning detection system, comprising a ground-embedded box arranged underground in a detection area, wherein the ground-embedded box is provided with two box chambers located on both sides and two middle compartments located in the middle, wherein a rotating seat is respectively provided in the two box chambers, and a tire seat is provided on the rotating seat, and the tire seat is located on the top surface of the ground-embedded box; A transverse movable rod is connected to one side of the rotating seat, a fixing plate is provided on the transverse movable rod, and an ultrasonic distance measuring sensor is provided on the side wall of the middle compartment located in the same horizontal direction as the fixing plate; The system also includes an angle sensor fixed to the vehicle's steering wheel; The two ultrasonic ranging sensors and the angle sensor are both connected to a host computer, which receives the steering wheel rotation angle data monitored by the angle sensor and the horizontal movement distance data of the lateral active rod monitored by the ultrasonic ranging sensor, and determines the steering wheel steering system accuracy by comparing the steering wheel rotation angle data and the horizontal movement distance data of the lateral active rod.

[0010] In a preferred solution, a fixed rod with a first hole is fixed on the rotating seat, a transverse movable rod is arranged through the middle compartment, a first protruding rod is arranged on one end of the transverse movable rod located in the box chamber, and the first protruding rod is located in the first hole; When the rotating seat rotates, the fixed rod rotates together and drives the transverse movable rod to move transversely.

[0011] In a preferred solution, the fixing sheet is arranged on a transverse movable rod in the chamber of the box body; A blocking piece is fixedly provided on the transverse movable rod in the middle compartment, and a first spring is sleeved on the transverse movable rods in the middle compartment on both sides of the blocking piece.

[0012] In a preferred solution, the rotating seat is movably arranged in the chamber of the box body and can rotate freely around its own central axis. A connecting hole is provided in the middle of the rotating seat, and positioning vertical grooves are provided on the side walls around the connecting hole. The tire seat comprises a base plate, a connecting column is arranged at the bottom of the base plate, and positioning keys are arranged on the side walls around the connecting column. The positioning keys are plugged and matched with the positioning vertical grooves to realize the axial positioning connection between the tire seats.

[0013] In a preferred solution, two groups of slide grooves are provided on both sides of the top of the base plate, and movable clamping plates are provided on the two groups of slide grooves, and the two movable clamping plates work together to clamp and fix the vehicle tire; A pressing plate is provided on the base plate between the two movable clamping plates, a bottom cavity is provided at the bottom of the base plate, two wedge-shaped blocks are provided in the bottom cavity, and a pressing rod extending downward into the bottom cavity is provided on the bottom surface of the pressing plate; The inclined surfaces of the two wedge-shaped blocks are arranged opposite to each other, and a slot is provided on the inclined surfaces, and first guide side slots are provided on both sides of the slot, and a side push rod is provided at the lower end of the pressure rod with both ends located in the two slots, and buckles are provided on both sides of the end of the side push rod, and the buckles are located in the first guide side slots on both sides of the slot; A lower push rod is provided on one end of the wedge-shaped block facing the side wall of the bottom cavity, and the lower push rod is horizontally extended to the outside of the bottom cavity. Through holes are provided on both sides of the base plate, and an intermediate rod is passed through the through hole. The intermediate rod is movably arranged in the through hole through a fixing pin, and second holes are provided at both ends of the intermediate rod; A second protruding rod is provided on one end of the lower push rod outside the bottom cavity, and the second protruding rod is located in the second hole at the lower end of the intermediate rod; An upper push rod is fixedly arranged on the outer side of the movable splint. The upper push rod extends outward horizontally. A third protruding rod is arranged at the end of the upper push rod. The third protruding rod is located in the second hole at the upper end of the intermediate rod.

[0014] In a preferred solution, a guide rod inserted into the wedge-shaped block is further provided on the side wall of the bottom cavity, and a second spring is provided on the guide rod portion located outside the wedge-shaped block.

[0015] In a preferred solution, a third spring is sleeved on the pressure rod portion outside the base plate.

[0016] In a preferred solution, an extension column section is provided at the upper end of the pressure rod, and third protruding rods are provided on both sides of the upper end of the extension column section; One end of the pressure plate is connected to the base plate through a pin shaft, and a guide groove is provided on the bottom surface near the other end. Second guide side grooves are provided on both sides of the guide groove. The extension column section extends into the guide groove, and the third protruding rod is located in the second guide side groove.

[0017] In a preferred solution, a base plate is fixedly provided on the probe rod on the angle sensor. The base plate is a circular plate. A plurality of buckle plates are provided around the base plate. A steering wheel buckle is provided on the buckle plate. The steering wheel buckle is clamped with the steering wheel to fix the angle sensor on the steering wheel.

[0018] The operating method of the above vehicle steering detection system comprises the following steps: 1) Drive the vehicle to the testing area and place the front wheels of the vehicle on two tire seats respectively; 2) Fix the angle sensor and the bottom plate together on the steering wheel by flipping the buckle plate on the bottom plate; 3) Keep the angle sensor stable and manually turn the steering wheel slowly in one direction; 4) The angle sensor monitors the steering wheel rotation angle data once a second and transmits the data to the host computer for recording; 5) The vehicle tire rotates synchronously with the wheel, driving the tire seat and the rotating seat to rotate axially, and the lateral movable rod moves laterally during the process; 6) Two ultrasonic ranging sensors monitor the lateral movement distance of the two fixed plates once per second; 7) The lateral movement distance of the two fixed plates is converted into the rotation angle data of the tire through conversion and transmitted to the host computer; 8) The host computer compares the angle sensor monitoring data and the ultrasonic ranging sensor monitoring data to determine whether the error between the three sets of data is within the allowable range; 9) If the data error is within the allowable range, reset the system, manually turn the steering wheel slowly in the other direction again, and perform the second test; If the data error exceeds the allowable range, the host computer controls the alarm module to sound an alarm.

[0019] The vehicle steering detection system and operation method provided by the present invention have the following beneficial effects by adopting the above structure and method: (1) By combining ultrasonic ranging sensors and angle sensors, high-precision detection of vehicle steering system performance is achieved. The ultrasonic ranging sensor can monitor the horizontal displacement changes caused by the tires in real time, while the angle sensor is responsible for recording the steering wheel rotation angle. By comparing these two data sets, the system can accurately calculate the working accuracy of the steering system, and even tiny changes can be captured and recorded. This high-precision detection capability enables the present invention to promptly detect potential problems in the steering system and provide reliable data support for maintenance decisions, thereby ensuring the safety performance of the vehicle; (2) The use of an automated detection process greatly improves detection efficiency. Traditional manual detection methods are not only time-consuming, but also easily affected by human factors, resulting in unstable detection results. In contrast, the system of the present invention records sensor data in real time through a host computer and automatically analyzes and compares it, eliminating human errors and ensuring the consistency and reliability of each detection. In addition, the system can complete multiple detections in a short period of time, which is suitable for the rapid detection needs of large quantities of vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the structure of the ground-embedded box of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the ground-embedded box of the present invention viewed from above.

[0022] Figure 3 It is a schematic diagram of the tire seat structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the vertical structure of the tire seat of the present invention.

[0024] Figure 5 It is a schematic diagram of the internal structure of the substrate bottom cavity of the present invention.

[0025] Figure 6 It is a schematic diagram of the pressing plate and the pressing rod structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the angle sensor of the present invention.

[0027] Figure 8 This is a data control block diagram of the present invention.

[0028] Fig. 9 This is a flowchart of the present invention when performing detection operations.

[0029] In the figure: embedded box 1, box chamber 101, middle compartment 102, tire seat 2, rotating seat 3, connecting hole 301, positioning vertical slot 302, fixing rod 4, first hole 401, transverse movable rod 5, first protruding rod 501, baffle 6, first spring 7, ultrasonic ranging sensor 8, fixing plate 9, angle sensor 10, probe rod 1001, bottom plate 11, buckle plate 12, steering wheel buckle 13, steering wheel 14, base plate 15, slide groove 151, bottom cavity 152, through hole 153, movable splint 1 6, connecting column 17, positioning key 171, pressure plate 18, guide groove 181, second guide side groove 182, lower push rod 19, second protruding rod 191, intermediate rod 20, second hole 2001, fixing pin 2002, upper push rod 21, third protruding rod 211, pressure rod 22, side push rod 221, buckle 222, movable column 223, wedge block 23, slot 231, first guide side groove 232, guide rod 24, second spring 25, third spring 26, extension column section 27, third protruding rod 271. DETAILED DESCRIPTION

[0030] Embodiment 1: like Figure 1-7 A vehicle steering detection system includes a ground-embedded box 1 arranged underground in a detection area, wherein the ground-embedded box 1 is provided with two box chambers 101 located on both sides and two middle compartments 102 located in the middle, wherein a rotating seat 3 is respectively provided in the two box chambers 101, and a tire seat 2 is provided on the rotating seat 3, and the tire seat 2 is located on the top surface of the ground-embedded box 1; A transverse movable rod 5 is connected to one side of the rotating seat 3, a fixing plate 9 is provided on the transverse movable rod 5, and an ultrasonic distance measuring sensor 8 is provided on the side wall of the middle compartment 102 in the same horizontal direction as the fixing plate 9; The system also includes an angle sensor 10 fixed to the vehicle steering wheel; The two ultrasonic ranging sensors 8 and the angle sensor 10 are both connected to the host computer, which receives the steering wheel rotation angle data monitored by the angle sensor 10 and the horizontal movement distance data of the lateral active rod 5 monitored by the ultrasonic ranging sensor 8. By comparing the steering wheel rotation angle data and the horizontal movement distance data of the lateral active rod 5, the accuracy of the steering wheel steering system is determined by the deviation of the two data.

[0031] In a preferred embodiment, a fixed rod 4 with a first hole 401 is fixed on the rotating seat 3, a transverse movable rod 5 is arranged through the middle compartment 102, and a first protruding rod 501 is arranged on one end of the transverse movable rod 5 located in the box chamber 101, and the first protruding rod 501 is located in the first hole 401; When the rotating seat 3 rotates, the fixed rod 4 rotates together and drives the transverse movable rod 5 to move transversely.

[0032] In a preferred solution, the fixing sheet 9 is arranged on the transverse movable rod 5 in the box chamber 101; A baffle 6 is fixedly provided on the transverse movable rod 5 in the middle compartment 102 , and first springs 7 are sleeved on the transverse movable rod 5 in the middle compartment 102 on both sides of the baffle 6 .

[0033] In the preferred solution, the rotating seat 3 is movably arranged in the box chamber 101 and can rotate freely around its own central axis. A connecting hole 301 is provided in the middle of the rotating seat 3, and positioning vertical grooves 302 are provided on the side walls around the connecting hole 301. The tire seat 2 includes a base plate 15 , a connecting column 17 is provided at the bottom of the base plate 15 , and positioning keys 171 are provided on the side walls around the connecting column 17 . The positioning keys 171 are plugged into and matched with the positioning vertical grooves 302 to realize the axial positioning connection between the tire seats 2 .

[0034] Embodiment 2: like Figure 3-6 As shown in , in order to ensure that the lateral movable rod 5 responds in time during the rotation of the wheel and reduce the detection error, it is considered that the movable clamping plates 16 on both sides of the tire seat 2 can completely fit the two sides of the tire, but considering the different widths of the tires, a mechanism capable of realizing adaptive clamping is designed. Combined with Example 1, the specific structure is as follows: Two groups of slide grooves 151 are provided on both sides of the top of the base plate 15, and movable clamping plates 16 are provided on the two groups of slide grooves 151. The two movable clamping plates 16 work together to clamp and fix the vehicle tire. A pressing plate 18 is provided on the base plate 15 between the two movable clamping plates 16, a bottom cavity 152 is provided at the bottom of the base plate 15, two wedge blocks 23 are provided in the bottom cavity 152, and a pressing rod 22 extending downward into the bottom cavity 152 is provided on the bottom surface of the pressing plate 18; The inclined surfaces of the two wedge-shaped blocks 23 are arranged opposite to each other, and a slot 231 is provided on the inclined surface, and first guide side slots 232 are provided on both sides of the slot 231. The lower end of the pressure rod 22 is provided with a side push rod 221 with both ends located in the two slots 231, and buckles 222 are provided on both sides of the end of the side push rod 221. The buckles 222 are located in the first guide side slots 232 on both sides of the slot 231. A lower push rod 19 is provided on one end of the wedge block 23 facing the side wall of the bottom cavity 152. The lower push rod 19 horizontally passes through the bottom cavity 152. Through holes 153 are provided on both sides of the base plate 15. An intermediate rod 20 is passed through the through hole 153. The intermediate rod 20 is movably arranged in the through hole 153 through a fixing pin 2002. Second holes 2001 are provided at both ends of the intermediate rod 20. A second protruding rod 191 is disposed on one end of the lower push rod 19 outside the bottom cavity 152. The second protruding rod 191 is located in the second hole 2001 at the lower end of the middle rod 20. An upper push rod 21 is fixedly provided on the outer side of the movable clamping plate 16 . The upper push rod 21 extends horizontally outward. A third protruding rod 211 is provided at the end of the upper push rod 21 . The third protruding rod 211 is located in the second hole 2001 at the upper end of the intermediate rod 20 .

[0035] In a preferred solution, a guide rod 24 inserted into the wedge block 23 is further provided on the side wall of the bottom cavity 152 , and a second spring 25 is provided on the portion of the guide rod 24 located outside the wedge block 23 .

[0036] In a preferred solution, a third spring 26 is sleeved on the portion of the pressure rod 22 located outside the base plate 15 .

[0037] In a preferred embodiment, an extension column section 27 is provided at the upper end of the pressure rod 22, and third protruding rods 271 are provided on both sides of the upper end of the extension column section 27; One end of the pressure plate 18 is connected to the base plate 15 through a pin shaft, and a guide groove 181 is provided on the bottom surface near the other end. Second guide side grooves 182 are provided on both sides of the guide groove 181. The extension column section 27 extends into the guide groove 181, and the third protruding rod 271 is located in the second guide side groove 182.

[0038] In the preferred solution, a base plate 11 is fixedly provided on the probe rod 1001 on the angle sensor 10. The base plate 11 is a circular plate. A plurality of buckle plates 12 are provided around the base plate 11. A steering wheel buckle 13 is provided on the buckle plate 12. The steering wheel buckle 13 is clamped with the steering wheel 14 to fix the angle sensor 10 on the steering wheel.

[0039] Embodiment 2: Combination Figure 8 , 9 The operating method of the vehicle steering detection system described in Example 1 comprises the following steps: 1) Drive the vehicle to the testing area and place the front wheels of the vehicle on two tire seats 2 respectively; 2) Fix the angle sensor 10 together with the bottom plate 11 on the steering wheel by turning over the buckle plate 12 on the bottom plate 11; 3) Keep the angle sensor 10 stable and manually turn the steering wheel slowly in one direction; 4) The angle sensor 10 monitors the rotation angle data of the steering wheel once per second and transmits the data to the host computer for recording; 5) The vehicle tire rotates synchronously with the wheel, driving the tire seat 2 and the rotating seat 3 to rotate axially, and the transverse movable rod 5 undergoes transverse displacement during the process; 6) Two ultrasonic distance measuring sensors 8 monitor the lateral movement distance of the two fixing plates 9 once per second; 7) The lateral movement distance of the two fixing plates 9 is converted into the rotation angle data of the tire through conversion and transmitted to the host computer; 8) The host computer compares the monitoring data of the angle sensor 10 and the monitoring data of the ultrasonic ranging sensor 8 to determine whether the error between the three sets of data is within the allowable range; 9) If the data error is within the allowable range, reset the system, manually turn the steering wheel slowly in the other direction again, and perform the second test; If the data error exceeds the allowable range, the host computer controls the alarm module to sound an alarm.

[0040] During the above step 1), when the vehicle reaches the detection position, the front wheel of the vehicle presses down the pressure plate 18, so that the pressure rod 22 moves down and pushes the two wedge blocks 23 to move to both sides. During this process, the three-link mechanism formed by the lower push rod 19, the middle rod 20 and the upper push rod 21 is actuated to move the two movable clamping plates 16 inward to fit closely to both sides of the tire, so as to ensure that when the tire rotates subsequently, the lateral movable rod 5 can be driven to respond immediately to avoid detection errors.

Claims

1. A vehicle steering detection system, characterized in that: The invention comprises a ground-embedded box (1) arranged underground in a detection area, wherein the ground-embedded box (1) is provided with two box chambers (101) located on both sides and two middle compartments (102) located in the middle, wherein each of the two box chambers (101) is provided with a rotating seat (3), wherein the rotating seat (3) is provided with a tire seat (2), and wherein the tire seat (2) is located on the top surface of the ground-embedded box (1); A transverse movable rod (5) is connected to one side of the rotating seat (3), a fixing plate (9) is provided on the transverse movable rod (5), and an ultrasonic distance measuring sensor (8) is provided on the side wall of the middle compartment (102) in the same horizontal direction as the fixing plate (9); The system also includes an angle sensor (10) fixed to the steering wheel of the vehicle; The two ultrasonic distance measuring sensors (8) and the angle sensor (10) are both connected to a host computer, and the host computer receives the steering wheel rotation angle data monitored by the angle sensor (10) and the horizontal movement distance data of the transverse movable rod (5) monitored by the ultrasonic distance measuring sensor (8), and determines the steering system accuracy of the steering wheel by comparing the steering wheel rotation angle data and the horizontal movement distance data of the transverse movable rod (5).

2. A vehicle turning detection system according to claim 1, characterized in that: A fixed rod (4) with a first hole (401) is fixedly provided on the rotating seat (3); a transverse movable rod (5) is arranged through the middle compartment (102); a first protruding rod (501) is provided on one end of the transverse movable rod (5) located in the box chamber (101); and the first protruding rod (501) is located in the first hole (401); When the rotating seat (3) rotates, the fixed rod (4) rotates together and drives the transverse movable rod (5) to undergo transverse displacement.

3. A vehicle turning detection system according to claim 2, characterized in that: The fixing plate (9) is arranged on a transverse movable rod (5) in the box chamber (101); A baffle (6) is fixedly provided on the transverse movable rod (5) located in the middle compartment (102), and a first spring (7) is sleeved on the transverse movable rod (5) located in the middle compartment (102) on both sides of the baffle (6).

4. A vehicle turning detection system according to claim 2, characterized in that: The rotating seat (3) is movably arranged in the box chamber (101) and can freely rotate around its own central axis. A connecting hole (301) is provided in the middle of the rotating seat (3), and positioning vertical grooves (302) are provided on the side walls around the connecting hole (301). The tire seat (2) comprises a base plate (15), a connecting column (17) is provided at the bottom of the base plate (15), positioning keys (171) are provided on the side walls around the connecting column (17), and the positioning keys (171) are plugged into and matched with the positioning vertical grooves (302) to achieve axial positioning connection between the tire seats (2).

5. A vehicle turning detection system according to claim 4, characterized in that: Two groups of slide grooves (151) are provided on both sides of the top of the base plate (15), and movable clamping plates (16) are provided on the two groups of slide grooves (151). The two movable clamping plates (16) work together to clamp and fix the vehicle tire. A pressing plate (18) is provided on the base plate (15) between the two movable clamping plates (16); a bottom cavity (152) is provided at the bottom of the base plate (15); two wedge-shaped blocks (23) are provided in the bottom cavity (152); and a pressing rod (22) is provided on the bottom surface of the pressing plate (18) and extends downward into the bottom cavity (152); The inclined surfaces of the two wedge-shaped blocks (23) are arranged opposite to each other, and a slot (231) is provided on the inclined surfaces. First guide side slots (232) are provided on both sides of the slot (231). A side push rod (221) having two ends located in the two slots (231) is provided at the lower end of the pressure rod (22). Buckles (222) are provided on both sides of the end of the side push rod (221), and the buckles (222) are located in the first guide side slots (232) on both sides of the slot (231). A lower push rod (19) is provided on one end of the wedge block (23) facing the side wall of the bottom cavity (152), and the lower push rod (19) extends horizontally to the outside of the bottom cavity (152). Through holes (153) are provided on both sides of the base plate (15), and an intermediate rod (20) is inserted through the through hole (153). The intermediate rod (20) is movably arranged in the through hole (153) via a fixing pin (2002), and second holes (2001) are provided at both ends of the intermediate rod (20); A second protruding rod (191) is provided on one end of the lower push rod (19) located outside the bottom cavity (152), and the second protruding rod (191) is located in a second hole (2001) at the lower end of the middle rod (20); An upper push rod (21) is fixedly provided on the outer side of the movable clamping plate (16). The upper push rod (21) extends outward horizontally. A third protruding rod (211) is provided at the end of the upper push rod (21). The third protruding rod (211) is located in the second hole (2001) at the upper end of the intermediate rod (20).

6. A vehicle turning detection system according to claim 5, characterized in that: A guide rod (24) inserted into the wedge-shaped block (23) is also provided on the side wall of the bottom cavity (152), and a second spring (25) is provided on the portion of the guide rod (24) located outside the wedge-shaped block (23).

7. A vehicle turning detection system according to claim 5, characterized in that: A third spring (26) is sleeved on the portion of the pressure rod (22) located outside the base plate (15).

8. A vehicle turning detection system according to claim 7, characterized in that: An extension column section (27) is provided at the upper end of the pressure rod (22), and third protruding rods (271) are provided on both sides of the upper end of the extension column section (27); One end of the pressure plate (18) is connected to the base plate (15) via a pin shaft, and a guide groove (181) is provided on the bottom surface near the other end, and second guide side grooves (182) are provided on both sides of the guide groove (181), the extension column section (27) extends into the guide groove (181), and the third protruding rod (271) is located in the second guide side groove (182).

9. A vehicle turning detection system according to claim 1, characterized in that: A base plate (11) is fixedly provided on the probe rod (1001) on the angle sensor (10), the base plate (11) being a circular plate, a plurality of buckle plates (12) being provided on the periphery of the base plate (11), a steering wheel buckle (13) being provided on the buckle plates (12), and the steering wheel buckle (13) is buckled with the steering wheel (14) to achieve the fixing of the angle sensor (10) on the steering wheel.

10. The operating method of a vehicle steering detection system according to any one of claims 1 to 9, characterized in that The following steps are involved: 1) Drive the vehicle to the testing area so that the front wheels of the vehicle are respectively pressed on the two tire seats (2); 2) fixing the angle sensor (10) together with the bottom plate (11) on the steering wheel by turning over the buckle plate (12) on the bottom plate (11); 3) Keep the angle sensor (10) stable and manually turn the steering wheel slowly in one direction; 4) The angle sensor (10) monitors the rotation angle data of the steering wheel once per second and transmits the data to the host computer for recording; 5) The vehicle tire rotates synchronously with the wheel, driving the tire seat (2) and the rotating seat (3) to rotate axially, and during this process, the transverse movable rod (5) undergoes transverse displacement; 6) Two ultrasonic distance measuring sensors (8) monitor the lateral movement distance of the two fixing plates (9) once per second; 7) The lateral movement distance of the two fixing plates (9) is converted into the rotation angle data of the tire through conversion and transmitted to the host computer; 8) The host computer compares the monitoring data of the angle sensor (10) and the monitoring data of the ultrasonic ranging sensor (8) to determine whether the error between the three sets of data is within the allowable range; 9) If the data error is within the allowable range, reset the system, manually turn the steering wheel slowly in the other direction again, and perform the second test; If the data error exceeds the allowable range, the host computer controls the alarm module to sound an alarm.

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