A static strength test bench and test method for automobile pedal mechanism

Abstract

The present invention relates to a static strength test bench and a test method for a vehicle pedal mechanism. The static strength test bench for a vehicle pedal mechanism comprises a base, a force detection device, a pedal fixing fixture, a pedal adjustment structure, a span adjustment structure, and a counterweight support structure. The pedal fixing fixture is fixed on the pedal adjustment structure, and the span adjustment structure can be adjusted in position along the X direction, the Y direction, and the Z direction respectively. The rodless end of the force detection device is hinged to the span adjustment structure through a fisheye bearing assembly, and the counterweight support structure comprises a support rod, the middle part of the support rod is hinged to the span adjustment structure, one end of the support rod is supported on the force detection device, and a counterweight is installed on the other end. According to the vehicle structure, the center of the fisheye bearing in the fisheye bearing assembly is placed at the span position of the driver's operating leg by adjusting the span adjustment structure; the end of the force application rod of the force detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight of the counterweight support structure.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component testing, and in particular to a static strength testing bench and a testing method for an automobile pedal mechanism. Background Art

[0002] During daily driving, when the driver performs emergency braking or acceleration on the car, the driver will apply a large force to the car's brake pedal, accelerator or clutch pedal. When the force exceeds the strength of the pedal, the pedal will be deformed or even damaged, posing a safety hazard.

[0003] This requires a pedal testing device that is applicable to various vehicle models and can accurately simulate the driver's force. In view of the above defects, the inventor of the present invention finally obtained the present invention after a long period of research and practice. Summary of the invention

[0004] In order to solve the above technical defects, the present invention provides a static strength test bench and test method for an automobile pedal mechanism, which can obtain the static strength of the automobile pedal and further evaluate whether the automobile pedal meets the design requirements.

[0005] The technical solution adopted by the present invention is:

[0006] On the one hand, a static strength test bench for an automobile pedal mechanism is provided, comprising a base, a force value detection device, a pedal fixing fixture, a pedal adjustment structure, a span adjustment structure, and a counterweight support structure;

[0007] The height direction of the stage is the Z direction, the length direction is the X direction, and the width direction is the Y direction;

[0008] The pedal adjustment structure and the span adjustment structure are installed at two ends of the base along the X direction;

[0009] The pedal fixing fixture is fixed on the pedal adjustment structure, and the pedal fixing fixture is used to install the pedal to be tested;

[0010] The span adjustment structure can be positionally adjusted along the X direction, the Y direction, and the Z direction respectively, and the rodless end of the force detection device is hinged to the span adjustment structure through a fisheye bearing assembly;

[0011] The counterweight support structure comprises a support rod, the middle part of which is hinged to the span adjustment structure, one end of which is supported on the force value detection device, and the other end of which is equipped with a counterweight;

[0012] According to the vehicle structure, the center of the fisheye bearing in the fisheye bearing assembly is placed at the span position of the driver's operating leg by adjusting the span adjustment structure; the end of the force rod of the force value detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight of the counterweight support structure.

[0013] Further, the span adjustment structure includes a first slide, a first column, a crossbeam and a connecting plate, the first slide is slidably connected to the base through a first guide rail kit, the first slide can slide on the base along the X direction, the first column is fixed on the first slide, the crossbeam is slidably connected to the first column through a second guide rail kit, the crossbeam can slide on the first column along the Z direction, the connecting plate is slidably connected to the crossbeam through a third guide rail kit, and the connecting plate can slide on the crossbeam along the Y direction.

[0014] Furthermore, the middle part of the support rod is hinged to the connecting plate through a connecting piece, a support plate is hinged to one end of the support rod, a rolling plate is fixed on the force detection device, a plurality of universal balls are installed on the bottom surface of the rolling plate, and the support plate and the bottom surface of the rolling plate are in rolling contact through the universal balls.

[0015] Furthermore, the test bench also includes a pedal test fixture, which is installed on the pedal operation plane at the end of the pedal arm of the pedal to be tested, and the pedal test fixture is provided with a ball socket, and the position of the ball socket corresponds to the position of the force point of the pedal to be tested;

[0016] The end of the force-applying rod of the force value detection device is provided with a ball head, and the ball head matches the ball socket.

[0017] Furthermore, the span adjustment structure also includes a screw rod, which is arranged in the Z direction and has one end fixedly connected to the first slide plate. The crossbeam is threadedly connected to the screw rod, and the Z-direction position of the crossbeam can be adjusted by rotating the screw rod.

[0018] Furthermore, the pedal adjustment structure includes a second slide plate, a second column and a clamp fixing plate, the second slide plate is slidably connected to the base via a third guide rail kit, the second slide plate can slide on the base along the X direction, the second column is fixed on the second slide plate, the clamp fixing plate is installed on the second column, the pedal fixing clamp is fixed to the clamp fixing plate by bolts, the clamp fixing plate is provided with a plurality of threaded holes arranged in a matrix, and the bolts adjust the installation position of the pedal fixing clamp by connecting with different threaded holes.

[0019] On the other hand, a method for testing the static strength of an automobile pedal mechanism is provided, and the above-mentioned automobile pedal mechanism static strength testing bench is used for testing;

[0020] Select appropriate feature points on the pedal to be tested and determine their coordinates in the vehicle coordinate system of the corresponding vehicle model;

[0021] Determine the coordinates of the seat point R corresponding to the vehicle model in the vehicle coordinate system, and then obtain the corresponding rotation points of the driver's left and right thighs, that is, the coordinates of the left and right hip points in the vehicle coordinate system;

[0022] Select the coordinates of the corresponding left hip point or right hip point in the vehicle coordinate system according to the type of the pedal to be tested;

[0023] According to the determined characteristic points and the coordinates of the hip point in the vehicle coordinate system, the force point of the pedal to be tested and the position of the center of the fisheye bearing in the static strength test bench of the automobile pedal mechanism are adjusted accordingly.

[0024] Furthermore, the types of pedals to be tested include a clutch pedal, a brake pedal, and an accelerator pedal. The clutch pedal corresponds to the coordinates of the left hip point in the vehicle coordinate system, and the brake pedal and the accelerator pedal correspond to the coordinates of the right hip point in the vehicle coordinate system.

[0025] Furthermore, the end of the force-applying rod of the force value detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight on the support rod, and then the force value detection device is adjusted to be in a balanced state.

[0026] Furthermore, the movement speed of the force-applying rod of the force value detection device is not less than 35 mm / min, and the maximum static strength of the pedal being measured can be obtained through the force-displacement relationship curve.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The automobile pedal mechanism static strength test bench and test method of the present invention are universal and can restore the force direction of the driver on the pedal in daily operation according to the positional relationship between the driver's hip point and the pedal feature point to obtain the static strength of the automobile pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic structural diagram of a static strength test bench for a vehicle pedal mechanism according to an embodiment of the present invention is shown;

[0031] Figure 2 A bottom view of a base showing an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the lower structure of the span adjustment structure according to an embodiment of the present invention is shown;

[0033] Figure 4 A schematic structural diagram of a pedal adjustment structure according to an embodiment of the present invention is shown;

[0034] Figure 5 A three-dimensional schematic diagram showing the connection part of the span adjustment structure and the force value detection device according to an embodiment of the present invention;

[0035] Figure 6 A side view showing a connection portion between a span adjustment structure and a force detection device according to an embodiment of the present invention;

[0036] Figure 7 A schematic structural diagram of a rolling plate according to an embodiment of the present invention is shown;

[0037] Figure 8 A schematic diagram showing the coordination between the pedal test fixture and the force value detection device according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0038] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0039] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Definition of the coordinate system direction of the whole vehicle: the coordinate system X direction is perpendicular to the length direction of the right beam 2 of the base, the Y direction is parallel to the length direction of the right beam 2 of the base, and the Z direction is perpendicular to the upper plane of the second slide 19. That is, the height direction of the platform is the Z direction, the length direction is the X direction, and the width direction is the Y direction.

[0045] In one embodiment, if Figure 1 , Figure 2As shown, the static strength test bench of the automobile pedal mechanism includes a base, a force detection device 21, a pedal fixing fixture 17, a pedal adjustment structure, a span adjustment structure, and a counterweight support structure. The pedal adjustment structure and the span adjustment structure are installed at both ends of the base along the X direction. The pedal fixing fixture is fixed on the pedal adjustment structure, and the pedal fixing fixture is used to install the pedal to be tested. The span adjustment structure can be adjusted in position along the X direction, the Y direction, and the Z direction respectively, and the rodless end of the force detection device 21 is hinged to the span adjustment structure through the fisheye bearing assembly 42. The counterweight support structure includes a support rod, the middle part of the support rod is hinged to the span adjustment structure, one end of which is supported on the force detection device 21, and the other end is installed with a counterweight 5. According to the vehicle structure, the center of the fisheye bearing in the fisheye bearing assembly is placed at the span position of the driver's operating leg by adjusting the span adjustment structure; the end of the force application rod of the force detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight 5 of the counterweight support structure.

[0046] The force-applying rod of the force detection device repeatedly applies force to the force point of the pedal to be tested, and the maximum static strength of the pedal to be tested can be obtained through the force-displacement relationship curve. The present invention simplifies the daily pedaling, and can better restore the driver's pedal operation direction in an emergency. The driver's force application direction of the pedal is affected by the relative position of the seat R point and the pedal of different car models. The car seat R point is the "riding reference point", which is the reference point for car design when the whole vehicle is arranged in the initial design, and each car model is almost different. When measuring the static strength of the pedal, first select appropriate feature points on the pedal and determine their coordinates in the vehicle coordinate system, such as (x1, y1, z1). When the coordinates of the seat point R corresponding to the vehicle model are (xr, yr, zr), the corresponding rotation points of the driver's left and right thighs, that is, the coordinates of the left and right hip points, can be obtained as (xr, yr-90, zr) and (xr, yr+90, zr). For the static strength test of the clutch pedal of a manual transmission car, since daily operation is performed by the left leg, the coordinates of the driver's left hip point and the clutch pedal feature point coordinates should be used for position adjustment. The brake pedal and the accelerator pedal both need to use the coordinates of the driver's right hip point and the feature points on the pedals for position adjustment.

[0047] In a specific embodiment, Figure 1 , Figure 3 , Figure 5 , Figure 6As shown, the span adjustment structure includes a first slide plate 3, first columns 22, 8, a crossbeam 6 and a connecting plate 37. The first slide plate 3 is slidably connected to the base through the first guide rail sets 25, 28, and the first slide plate 3 can slide on the base along the X direction. The position after sliding is fixed by the bottom fixed convex grooves 26, 27. The first columns 8, 22 are fixed on the first slide plate 3, and the crossbeam 6 is slidably connected to the first columns 22, 8 through the second guide rail sets 31, 32, and the crossbeam 6 can slide on the first columns 22, 8 along the Z direction. The connecting plate 37 is slidably connected to the crossbeam 6 through the third guide rail set 36, and the connecting plate 37 can slide on the crossbeam 6 along the Y direction. The side of the first columns 8, 22 is also welded with reinforcing plates 4, 7 with round holes. A first column transverse connecting plate 9 is also fixed between the two first columns 8, 22. The L-shaped connecting plate 35 is fixed to the cross beam 6 by bolts, and the transverse guide rail 36 is also fixedly connected to the cross beam 6 by bolts. The connecting plate 37 can move laterally with the force value measuring device through the transverse guide rail 36, and the position after movement can be fixed by using the slide groove on the L-shaped connecting plate 35.

[0048] The test bench is adjusted according to the relative position relationship between the coordinates of the driver's hip point corresponding to different pedals and the characteristic points of the test pedals, and the end of the force detection device 21, that is, the center of the fisheye bearing in the fisheye bearing assembly 42 at the end of the force detection device 21, is used as the driver's hip point. The vehicle coordinate system is adjusted in the X direction, and the first slide plate 3 can move along the first guide rail kit 25, 28 to reach the target position. The vehicle coordinate system is adjusted in the Y direction, and the connecting plate 37 can be adjusted through the third guide rail kit 36 ​​to drive the force detection device to move to the target position. The vehicle coordinate system is adjusted in the Z direction, and the crossbeam 6 can move through the second guide rail kits 31, 32 to reach the target position.

[0049] The span adjustment structure also includes screw rods 34 and 45, which are arranged in the Z direction and one end of which is fixedly connected to the first slide plate 3. The crossbeam 6 is threadedly connected to the screw rods 34 and 45 through a screw connector 33. The Z-direction position of the crossbeam 6 can be adjusted by rotating the screw rod 34. A turntable 46 is arranged at the bottom of the screw rod 34, and rotating the turntable 46 drives 34 and 45 to rotate.

[0050] like Figure 5 , Figure 6 , Figure 7As shown, the middle part of the support rod 40 is hinged with the connecting plate 37 through a connecting piece 41, and a support plate 39 is hinged at one end of the support rod 40. A rolling plate 38 is fixed on the force detection device 21, and a plurality of universal balls are installed on the bottom surface of the rolling plate 38. The support plate 39 and the bottom surface of the rolling plate 38 are in rolling contact through the universal balls. More specifically, the bottom support plate connecting piece 44 of the force detection device can rotate around the hinge, the bottom support plate connecting piece 4 of the force detection device is fixedly connected with the support plate 39 by bolts, and the connecting piece 41 is connected with the connecting plate 37 by hinges. Under the action of the counterweight 5, the connecting rod 40 will drive the bottom support plate connecting piece 44 and the connecting piece 41 of the force detection device to rotate around their own connecting hinges respectively, and the connecting piece 43 of the force detection device is fixedly connected with the connecting plate 37 by bolts. The force detection device can adjust the force direction of the force detection device by using the above connection relationship. The counterweight 5 is a disc counterweight, and the weight of the counterweight can be adjusted by adding or removing the disc. Universal balls are evenly distributed on the rolling plate 38, and the universal balls are in contact with the support plate 39. The support plate 39 carries a force detection device that utilizes the fisheye bearing assembly 42 at the end of the force detection device 21 to adjust the rotation angle of the force detection device around the Z axis of the vehicle coordinate system.

[0051] like Figure 1 , Figure 4 As shown, the pedal adjustment structure includes a second slide plate 19, second columns 12, 14 and clamp fixing plates 16, 18. The second slide plate 19 is slidably connected to the base through a third guide rail set. Preferably, the third guide rail set and the first guide rail set 25, 28 share the same track. The second slide plate 19 can slide on the base along the X direction, and the position after sliding is fixed by the bottom fixed convex grooves 26, 27. The second columns 12, 14 are fixed to the second slide plate 19 through column connecting plates 30, 29, and the clamp fixing plates 16, 18 are installed on the second columns 12, 14. The pedal fixing clamp 17 is fixed to the clamp fixing plates 16, 18 by bolts. The clamp fixing plates 16, 18 are provided with a plurality of threaded holes arranged in a matrix. The bolts adjust the installation position of the pedal fixing clamp 17 by connecting with different threaded holes. A second column transverse connecting plate 13 is also fixed between the two second columns 14, 12. A top reinforcing rod 10 is connected to the second column transverse connecting plate 13 and the first column transverse connecting plate 9 .

[0052] In a more specific embodiment, Figure 8 As shown, the automobile pedal mechanism static strength test bench also includes a pedal test fixture 48, which is installed on the pedal operation plane at the end of the pedal arm 47 of the pedal to be tested, and the pedal test fixture is provided with a ball socket, the position of the ball socket corresponds to the position of the force point of the pedal to be tested. The end of the force application rod 49 of the force value detection device 21 is provided with a ball head, and the ball head matches the ball socket.

[0053] The base size is 1900mmx760mmx100mm, and is welded from a square tube with a cross-section of 100mmx100mm and a wall thickness of 5mm. A supporting caster 1 is installed at the bottom.

[0054] According to another aspect of the present invention, in one embodiment, a method for testing the static strength of an automobile pedal mechanism is provided, and the above-mentioned automobile pedal mechanism static strength test bench is used for testing.

[0055] Select appropriate feature points on the pedal to be tested and determine their coordinates in the vehicle coordinate system of the corresponding vehicle model;

[0056] Determine the coordinates of the seat point R corresponding to the vehicle model in the vehicle coordinate system, and then obtain the corresponding rotation points of the driver's left and right thighs, that is, the coordinates of the left and right hip points in the vehicle coordinate system;

[0057] Select the coordinates of the corresponding left hip point or right hip point in the vehicle coordinate system according to the type of the pedal to be tested;

[0058] According to the determined characteristic points and the coordinates of the hip point in the vehicle coordinate system, the force point of the pedal to be tested and the position of the center of the fisheye bearing in the static strength test bench of the automobile pedal mechanism are adjusted accordingly.

[0059] The types of pedals to be tested include a clutch pedal, a brake pedal, and an accelerator pedal. The clutch pedal corresponds to the coordinates of the left hip point in the vehicle coordinate system, and the brake pedal and the accelerator pedal correspond to the coordinates of the right hip point in the vehicle coordinate system.

[0060] The end of the force-applying rod of the force value detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight on the support rod, and then the force value detection device is adjusted to be in a balanced state.

[0061] In the specific test, the pedal to be tested is first installed on the pedal fixing fixture. The pedal fixing fixture is connected to two fixture fixing plates with threaded holes vertically by bolts. Then, the test bench is adjusted according to the relative position relationship between the coordinates of the driver's hip point corresponding to different pedals and the characteristic points of the test pedal. The end of the force detection device, that is, the center of the fisheye bearing in the fisheye bearing assembly at the end of the force detection device, is used as the driver's hip point. The vehicle coordinate system is adjusted in the X direction, Y direction, and Z direction to reach the target position. The front end of the force detection device is aligned with the force point on the pedal by adjusting the counterweight. Then, the force detection device is adjusted to a balanced state. The pedal can be tested. The detection speed should be no less than 35 mm / min. The maximum static strength of the measured pedal can be obtained through the force-displacement relationship curve.

[0062] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A static strength test bench for automobile pedal mechanism, characterized in that: It includes a base, a force value detection device, a pedal fixing fixture, a pedal adjustment structure, a span point adjustment structure and a counterweight support structure; The height direction of the stage is the Z direction, the length direction is the X direction, and the width direction is the Y direction; The pedal adjustment structure and the span adjustment structure are installed at two ends of the base along the X direction; The pedal fixing fixture is fixed on the pedal adjustment structure, and the pedal fixing fixture is used to install the pedal to be tested; The span adjustment structure can be positionally adjusted along the X direction, the Y direction, and the Z direction respectively, and the rodless end of the force detection device is hinged to the span adjustment structure through a fisheye bearing assembly; The counterweight support structure comprises a support rod, the middle part of which is hinged to the span adjustment structure, one end of which is supported on the force value detection device, and the other end of which is equipped with a counterweight; According to the vehicle structure, the center of the fisheye bearing in the fisheye bearing assembly is placed at the span position of the driver's operating leg by adjusting the span adjustment structure; the end of the force rod of the force value detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight of the counterweight support structure.

2. The automobile pedal mechanism static strength test bench according to claim 1, characterized in that: The span adjustment structure includes a first slide, a first column, a crossbeam and a connecting plate. The first slide is slidably connected to the base through a first guide rail kit, and the first slide can slide on the base along the X direction. The first column is fixed on the first slide. The crossbeam is slidably connected to the first column through a second guide rail kit, and the crossbeam can slide on the first column along the Z direction. The connecting plate is slidably connected to the crossbeam through a third guide rail kit, and the connecting plate can slide on the crossbeam along the Y direction.

3. The automobile pedal mechanism static strength test bench according to claim 2, characterized in that: The middle part of the support rod is hinged to the connecting plate through a connecting piece, a support plate is hinged to one end of the support rod, a rolling plate is fixed on the force detection device, a plurality of universal balls are installed on the bottom surface of the rolling plate, and the support plate is in rolling contact with the bottom surface of the rolling plate through the universal balls.

4. The automobile pedal mechanism static strength test bench according to claim 3, characterized in that: It also includes a pedal test fixture, which is installed on the pedal operation plane at the end of the pedal arm of the pedal to be tested, and the pedal test fixture is provided with a ball socket, and the position of the ball socket corresponds to the position of the force point of the pedal to be tested; The end of the force-applying rod of the force value detection device is provided with a ball head, and the ball head matches the ball socket.

5. The automobile pedal mechanism static strength test bench according to claim 2, characterized in that: The span adjustment structure also includes a screw rod, which is arranged in the Z direction and has one end fixedly connected to the first slide plate. The crossbeam is threadedly connected to the screw rod, and the Z-direction position of the crossbeam can be adjusted by rotating the screw rod.

6. The automobile pedal mechanism static strength test bench according to claim 1, characterized in that: The pedal adjustment structure includes a second slide plate, a second column and a clamp fixing plate. The second slide plate is slidably connected to the base via a third guide rail kit. The second slide plate can slide on the base along the X direction. The second column is fixed on the second slide plate. The clamp fixing plate is installed on the second column. The pedal fixing clamp is fixed to the clamp fixing plate by bolts. The clamp fixing plate is provided with a plurality of threaded holes arranged in a matrix. The bolts adjust the installation position of the pedal fixing clamp by connecting with different threaded holes.

7. A method for testing the static strength of an automobile pedal mechanism, characterized in that: The test is performed using a static strength test bench for an automobile pedal mechanism as described in any one of claims 1 to 6; Select appropriate feature points on the pedal to be tested and determine their coordinates in the vehicle coordinate system of the corresponding vehicle model; Determine the coordinates of the seat point R corresponding to the vehicle model in the vehicle coordinate system, and then obtain the corresponding rotation points of the driver's left and right thighs, that is, the coordinates of the left and right hip points in the vehicle coordinate system; Select the coordinates of the corresponding left hip point or right hip point in the vehicle coordinate system according to the type of the pedal to be tested; According to the determined coordinates of the characteristic points and the hip point in the vehicle coordinate system, the force point of the pedal to be tested and the position of the center of the fisheye bearing in the static strength test bench of the automobile pedal mechanism are adjusted accordingly.

8. A method for testing the static strength of an automobile pedal mechanism as claimed in claim 7, characterized in that: The types of pedals to be tested include a clutch pedal, a brake pedal, and an accelerator pedal. The clutch pedal corresponds to the coordinates of the left hip point in the vehicle coordinate system, and the brake pedal and the accelerator pedal correspond to the coordinates of the right hip point in the vehicle coordinate system.

9. A method for testing the static strength of a vehicle pedal mechanism as claimed in claim 7, characterized in that: The end of the force-applying rod of the force value detection device is aligned with the force point of the pedal to be tested by adjusting the counterweight on the support rod, and then the force value detection device is adjusted to be in a balanced state.

10. A method for testing the static strength of an automobile pedal mechanism according to any one of claims 7 to 9, characterized in that: The movement speed of the force-applying rod of the force value detection device is not less than 35 mm / min, and the maximum static strength of the pedal being measured can be obtained through the force-displacement relationship curve.

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