Vehicle steering detection system and operation method

Abstract

The present invention relates to a vehicle steering detection system, comprising an embedded box arranged underground in a detection area. Two box chambers and two central compartments are provided in the box. A rotating seat is provided in the box chamber, and a tire seat is provided on the rotating seat. One side of the rotating seat is connected to a transverse movable rod, and a fixing plate is provided on the transverse movable rod, and an ultrasonic ranging sensor is provided on the side wall of the central compartment. The system also includes an angle sensor fixed on the vehicle steering wheel. The ultrasonic ranging sensor and the angle sensor are both connected to a host computer, which receives the steering wheel rotation angle data and the transverse movable rod horizontal movement distance data, and determines the accuracy of the steering wheel steering system by comparing the data deviation between the two. The present invention realizes real-time monitoring of various parameters in the vehicle steering process by combining mechanical structure and electronic sensor technology, and determines the accuracy of the steering system through data analysis, thereby providing a scientific basis for the 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 technological advancements and social development, people's demands for vehicle safety are becoming increasingly stringent. As a crucial component of a vehicle, the performance of the vehicle's steering system is directly related to the driver's safety and comfort. Traditional vehicle steering systems primarily rely on mechanical structures. In recent years, with the application of electronic technology, an increasing number of electronically assisted steering systems (such as EPS, Electric Power Steering) have been incorporated into vehicle designs. These systems not only improve steering sensitivity and responsiveness, but also enhance vehicle handling stability.

[0003] However, both traditional hydraulic and modern electric power steering systems require regular inspection to ensure they are in good working order. Traditional methods typically rely on manual observation or simple equipment for inspection, which is not only time-consuming and labor-intensive, but also lacks precise data support, making it difficult to accurately assess the steering system's actual performance. Furthermore, with the advancement of autonomous driving technology, the precision requirements for vehicle steering systems are becoming more stringent, necessitating more precise and efficient inspection methods.

[0004] Existing vehicle steering detection methods and technologies have the following main problems:

[0005] 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.

[0006] 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.

[0007] 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.

[0008] Limited data processing capabilities: Existing testing equipment is often unable to process large amounts of data in real time, resulting in inaccurate and untimely analysis results. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a vehicle steering detection system and operation method, which aims to achieve real-time monitoring of various parameters during 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.

[0010] To solve the above technical problems, the present invention adopts the following technical solution: a vehicle turning detection system, comprising a ground-embedded box disposed underground in a detection area, the ground-embedded box having two box chambers located on both sides and two central compartments located in the middle, each of the two box chambers having a rotating seat, the rotating seat having a tire seat disposed on the rotating seat, and the tire seat being located on the top surface of the ground-embedded box;

[0011] One side of the rotating seat is connected to a transverse movable rod, a fixing plate is provided on the transverse movable rod, and an ultrasonic ranging sensor is provided on the side wall of the middle compartment in the same horizontal direction as the fixing plate;

[0012] The system also includes an angle sensor fixed to the vehicle's steering wheel;

[0013] The two ultrasonic ranging sensors and angle sensors 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. By comparing the steering wheel rotation angle data and the horizontal movement distance data of the lateral active rod, the steering wheel steering system accuracy is determined based on the deviation between the two data.

[0014] In a preferred embodiment, a fixed rod with a first hole is fixed on the rotating seat, a transverse movable rod is arranged through the middle compartment, and a first protruding rod is provided on one end of the transverse movable rod located in the box cavity, and the first protruding rod is located in the first hole;

[0015] When the rotating seat rotates, the fixed rod rotates together and drives the transverse movable rod to move transversely.

[0016] In a preferred solution, the fixing piece is provided on a transverse movable rod in the chamber of the box body;

[0017] A blocking piece is fixedly provided on the transverse movable rod located in the middle compartment, and a first spring is sleeved on the transverse movable rod located in the middle compartment on both sides of the blocking piece.

[0018] In a preferred embodiment, the rotating seat is movably arranged in the chamber of the box body and can freely rotate 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.

[0019] The tire seat comprises a base plate, a connecting column is provided at the bottom of the base plate, and positioning keys are provided on the side walls around the connecting column. The positioning keys are plugged into the positioning vertical grooves to realize the axial positioning connection between the tire seats.

[0020] In a preferred embodiment, two sets of slide grooves are provided on both sides of the top of the base plate, and movable clamping plates are provided on the two sets of slide grooves. The two movable clamping plates work together to clamp and fix the vehicle tire.

[0021] A pressure plate is provided on the base plate between the two movable splints, a bottom cavity is provided at the bottom of the base plate, two wedge-shaped blocks are provided in the bottom cavity, and a pressure rod is provided on the bottom surface of the pressure plate and extends downward into the bottom cavity;

[0022] The inclined surfaces of the two wedge-shaped blocks are arranged opposite to each other, and a slot is provided on the inclined surfaces. First guide side slots are provided on both sides of the slot. A side push rod is provided at the lower end of the pressure rod, and both ends are located in the two slots. 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.

[0023] 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 passes horizontally 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 a second hole is provided at both ends of the intermediate rod;

[0024] A second protruding rod is provided on one end of the lower push rod located outside the bottom cavity, and the second protruding rod is located in the second hole at the lower end of the intermediate rod;

[0025] An upper push rod is fixedly provided on the outer side of the movable splint. The upper push rod extends horizontally outwards. A third protruding rod is provided 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.

[0026] 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.

[0027] In a preferred solution, a third spring is sleeved on the pressure rod portion outside the base plate.

[0028] In a preferred embodiment, 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;

[0029] 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 protrusion is located in the second guide side groove.

[0030] In the preferred solution, a base plate is fixed on the probe rod on the angle sensor. The base plate is a circular plate with multiple buckle plates around it. The buckle plates are provided with a steering wheel buckle. The steering wheel buckle is clamped with the steering wheel to fix the angle sensor on the steering wheel.

[0031] The operating method of the vehicle steering detection system includes the following steps:

[0032] 1) Drive the vehicle to the testing area and place the front wheels on the two tire seats respectively;

[0033] 2) Flip the gusset plate on the bottom plate and secure the angle sensor and the bottom plate to the steering wheel.

[0034] 3) Keep the angle sensor stable and manually turn the steering wheel slowly in one direction;

[0035] 4) The angle sensor monitors the steering wheel's rotation angle data once per second and transmits the data to the host computer for recording;

[0036] 5) The vehicle tire rotates synchronously with the wheel, driving the tire seat and the rotating seat to rotate axially, and the transverse movable rod undergoes transverse displacement during the process;

[0037] 6) Two ultrasonic ranging sensors monitor the lateral movement distance of the two fixed plates once per second;

[0038] 7) The lateral movement distance of the two fixed plates is converted into the tire rotation angle data and transmitted to the host computer;

[0039] 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;

[0040] 9) If the data error is within the allowable range, reset the system and manually turn the steering wheel slowly in the other direction again to perform a second test.

[0041] If the data error exceeds the allowable range, the host computer controls the alarm module to sound an alarm.

[0042] The vehicle steering detection system and operating method provided by the present invention have the following beneficial effects by adopting the above structure and method:

[0043] (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, providing reliable data support for maintenance decisions, thereby ensuring the safety performance of the vehicle;

[0044] (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

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0046] Figure 1 It is a schematic diagram of the structure of the ground-embedded box of the present invention.

[0047] Figure 2 It is a schematic diagram of the internal structure of the ground-embedded box of the present invention from a top view.

[0048] Figure 3 It is a schematic structural diagram of the tire seat of the present invention.

[0049] Figure 4 It is a schematic diagram of the vertical structure of the tire seat of the present invention.

[0050] Figure 5 Schematic diagram of the internal structure of the substrate bottom cavity of the present invention.

[0051] Figure 6 It is a schematic diagram of the pressure plate and pressure rod structure of the present invention.

[0052] Figure 7 This is a structural diagram of the angle sensor portion of the present invention.

[0053] Figure 8 This is a data control block diagram of the present invention.

[0054] Figure 9 This is a flowchart of the detection operation performed by the present invention.

[0055] 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 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 protrusion 191, intermediate rod 20, second hole 2001, fixing pin 2002, upper push rod 21, third protrusion 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 protrusion 271. DETAILED DESCRIPTION

[0056] Example 1:

[0057] like Figure 1-7 A vehicle steering detection system includes a ground-embedded box 1 disposed underground in a detection area. The ground-embedded box 1 includes two box chambers 101 on both sides and two central compartments 102 in the middle. Each of the two box chambers 101 includes a rotating seat 3, and the rotating seat 3 includes a tire seat 2. The tire seat 2 is located on the top surface of the ground-embedded box 1.

[0058] One side of the rotating seat 3 is connected to a transverse movable rod 5, on which a fixing plate 9 is provided. An ultrasonic ranging sensor 8 is provided on the side wall of the middle compartment 102 in the same horizontal direction as the fixing plate 9.

[0059] The system also includes an angle sensor 10 fixed to the vehicle steering wheel;

[0060] The two ultrasonic ranging sensors 8 and the angle sensor 10 are both connected to the host computer. 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 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 transverse active rod 5, the steering wheel steering system accuracy is determined by the deviation of the two data.

[0061] In a preferred embodiment, a fixed rod 4 with a first hole 401 is fixed on the rotating seat 3, and 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;

[0062] When the rotating seat 3 rotates, the fixed rod 4 rotates together and drives the transverse movable rod 5 to move transversely.

[0063] In a preferred embodiment, the fixing piece 9 is provided on the transverse movable rod 5 in the box chamber 101;

[0064] A blocking piece 6 is fixedly provided on the transverse movable rod 5 located in the middle compartment 102 , and a first spring 7 is sleeved on both sides of the blocking piece 6 and on the transverse movable rod 5 located in the middle compartment 102 .

[0065] In the preferred embodiment, 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.

[0066] 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 the positioning vertical grooves 302 to achieve axial positioning connection between the tire seats 2 .

[0067] Example 2:

[0068] like Figure 3-6 As shown in FIG, in order to ensure that the transverse movable rod 5 responds promptly during the rotation of the wheel and reduce the detection error, the movable clamping plates 16 on both sides of the tire seat 2 can completely fit the two sides of the tire. However, considering the different widths of the tires, a mechanism capable of achieving adaptive clamping is designed. In combination with Example 1, the specific structure is as follows:

[0069] Two sets of slide grooves 151 are provided on both sides of the top of the base plate 15. The two sets of slide grooves 151 are provided with movable clamping plates 16. The two movable clamping plates 16 work together to clamp and fix the vehicle tire.

[0070] A pressure plate 18 is provided on the base plate 15 between the two movable splints 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. A pressure rod 22 extending downward into the bottom cavity 152 is provided on the bottom surface of the pressure plate 18.

[0071] 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. 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. The ends of the side push rod 221 are provided with buckles 222 on both sides. The buckles 222 are located in the first guide side slots 232 on both sides of the slot 231.

[0072] 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 extends horizontally to the outside of 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 by a fixing pin 2002. A second hole 2001 is provided at both ends of the intermediate rod 20.

[0073] A second protruding rod 191 is provided on one end of the lower push rod 19 located outside the bottom cavity 152. The second protruding rod 191 is located in the second hole 2001 at the lower end of the intermediate rod 20.

[0074] An upper push rod 21 is fixedly provided on the outer side of the movable splint 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 .

[0075] 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 .

[0076] In a preferred solution, a third spring 26 is sleeved on the portion of the pressure rod 22 located outside the base plate 15 .

[0077] 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;

[0078] 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 protrusion 271 is located in the second guide side groove 182.

[0079] 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.

[0080] Example 2:

[0081] Combine Figure 8 、 9 The operating method of the vehicle steering detection system described in Example 1 includes the following steps:

[0082] 1) Drive the vehicle to the testing area and place the front wheels of the vehicle on the two tire seats 2 respectively;

[0083] 2) Fix the angle sensor 10 and the base plate 11 together on the steering wheel by flipping the buckle plate 12 on the base plate 11;

[0084] 3) Keep the angle sensor 10 stable and manually turn the steering wheel slowly in one direction;

[0085] 4) The angle sensor 10 monitors the steering wheel rotation angle data once per second and transmits the data to the host computer for recording;

[0086] 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;

[0087] 6) Two ultrasonic ranging sensors 8 monitor the lateral movement distance of the two fixing plates 9 once per second;

[0088] 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;

[0089] 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;

[0090] 9) If the data error is within the allowable range, reset the system and manually turn the steering wheel slowly in the other direction again to perform a second test.

[0091] If the data error exceeds the allowable range, the host computer controls the alarm module to sound an alarm.

[0092] During step 1) above, when the vehicle reaches the detection position, the front wheel of the vehicle presses down the pressure plate 18, causing the pressure rod 22 to move downward and push the two wedge blocks 23 to move to the sides. During this process, the three-bar linkage formed by the lower push rod 19, the middle rod 20 and the upper push rod 21 is actuated, causing the two movable splints 16 to move inward to fit closely to the sides of the tire, ensuring that when the tire rotates subsequently, it can drive the lateral movable rod 5 to respond immediately, thereby avoiding detection errors.

Claims

1. A vehicle steering detection system, characterized in that: The invention comprises an embedded box (1) arranged underground in a detection area, wherein the 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 provided in each of the two box chambers (101), a tire seat (2) is provided on the rotating seat (3), and the tire seat (2) is located on the top surface of the 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 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. The host computer receives the steering wheel rotation angle data monitored by the angle sensor (10) and the lateral movement distance of the fixed plate (9) monitored by the ultrasonic distance measuring sensor (8). The lateral movement distance of the fixed plate (9) is converted into the rotation angle data of the tire through conversion. The steering wheel rotation angle data and the tire rotation angle data converted from the horizontal movement distance data of the lateral movable rod (5) are compared, and the steering wheel steering system accuracy is determined by the deviation of the two data. 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 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.

2. A vehicle steering detection system according to claim 1, characterized in that: The fixing plate (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) 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).

3. The vehicle steering detection system according to claim 1, 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), and positioning keys (171) are provided on the side walls around the connecting column (17). The positioning keys (171) are plugged into the positioning vertical groove (302) to realize the axial positioning connection between the tire seat (2) and the tire seat (2).

4. A vehicle turning detection system according to claim 3, 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 pressure plate (18) is provided on the base plate (15) between the two movable splints (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 pressure rod (22) is provided on the bottom surface of the pressure 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 surface. 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) whose two ends are located in the two slots (231). Both sides of the end of the side push rod (221) are provided with buckles (222), 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) is horizontally extended 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 provided through the through hole (153). The intermediate rod (20) is movably arranged in the through hole (153) through a fixing pin (2002), and a second hole (2001) is 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 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 splint (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).

5. A vehicle turning detection system according to claim 4, characterized in that: 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).

6. A vehicle turning detection system according to claim 4, characterized in that: A third spring (26) is sleeved on the portion of the pressure rod (22) located outside the base plate (15).

7. A vehicle turning detection system according to claim 6, 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. Second guide side grooves (182) are provided on both sides of the guide groove (181), and the extension column section (27) extends into the guide groove (181). The third protruding rod (271) is located in the second guide side groove (182).

8. The vehicle steering 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 clasps (12) being provided around the base plate (11), a steering wheel buckle (13) being provided on the clasp plates (12), and the steering wheel buckle (13) being engaged with the steering wheel (14) to achieve the fixing of the angle sensor (10) on the steering wheel.

9. The method for operating a vehicle steering detection system according to any one of claims 1 to 8, 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 steering wheel rotation angle data 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 lateral movable rod (5) undergoes lateral displacement; 6) Two ultrasonic distance measuring sensors (8) monitor the lateral movement distance of the two fixed 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 and manually turn the steering wheel slowly in the other direction again to perform a 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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