Brake pedal travel vehicle-mounted testing device

Abstract

The utility model discloses a vehicle-mounted testing device for the travel of a brake pedal. The vehicle-mounted testing device comprises a main connecting arm, a mounting frame, a stand column, a bracket plate, a displacement sensor and a locking mechanism, the vehicle is internally provided with a seat framework, a cab floor and a pedal, the rear end of the main connecting arm is used for being connected to the seat framework, the mounting frame is connected with the front end of the main connecting arm and used for being supported on the cab floor, and the lower end of the stand column is connected to the mounting frame. The support plate is connected to the upper end portion of the stand column, the displacement sensor is rotationally connected to the support plate, and the locking mechanism is connected with the displacement sensor and used for locking and fixing the displacement sensor to the support plate after the displacement sensor rotates in place. The pedal travel detection device can directly detect the travel of the pedal through the displacement sensor, and can improve the accuracy of pedal travel detection.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted testing device for a brake pedal stroke. Background Art

[0002] At present, in order to collect pedal operation data during vehicle testing, it is necessary to accurately measure the pedal stroke. A Chinese patent with publication number CN113405815A discloses an intelligent brake system pedal stroke detection device, in which the pedal stroke is calculated based on the principle that the resistance value of the sliding rheostat increases and the current decreases after the pedal is pressed. However, there is a deviation in the pedal stroke calculated by the current change caused by the resistance change, resulting in the measured pedal stroke being inaccurate. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a vehicle-mounted test device for brake pedal stroke, which can directly detect the stroke of the pedal through a displacement sensor and can improve the accuracy of detecting the pedal stroke.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a vehicle-mounted test device for brake pedal stroke, which includes a main connecting arm, a mounting frame, a column, a bracket plate, a displacement sensor and a locking mechanism;

[0005] The vehicle has a seat frame, a cab floor and pedals;

[0006] The rear end of the main connecting arm is used to be connected to the seat frame;

[0007] The mounting frame is connected to the front end of the main connecting arm and is used to be supported on the cab floor;

[0008] The lower end of the column is connected to the mounting frame;

[0009] The bracket plate is connected to the upper end of the column;

[0010] The displacement sensor is rotatably connected to the bracket plate, and the displacement sensor is used to rotate to align with the pedal and make the measuring direction of the displacement sensor consistent with the pedal stroke direction;

[0011] The locking mechanism is connected to the displacement sensor and is used to lock and fix the displacement sensor on the bracket plate after the displacement sensor is rotated into place.

[0012] Furthermore, the rear end portion of the main connecting arm is connected to the seat frame via a first fastener, and the main connecting arm is used to rotate up and down into place with the first fastener as the rotation center when the first fastener is loosened, and the first fastener is used to lock and fix the main connecting arm to the seat frame after the main connecting arm is rotated up and down into place.

[0013] A specific structure of the mounting frame is further provided, wherein the mounting frame comprises a transverse beam body and a longitudinal beam body;

[0014] The transverse beam body extends in the left-right direction and is connected to the front end of the main connecting arm;

[0015] The longitudinal beam body extends in the front-rear direction, and the rear end portion of the longitudinal beam body is connected to the transverse beam body;

[0016] The lower end of the column is connected to the longitudinal beam;

[0017] The transverse beam and the longitudinal beam are both used for supporting on the cab floor.

[0018] Furthermore, two main connecting arms are arranged in parallel;

[0019] The transverse beam body and the longitudinal beam body are both aluminum profiles;

[0020] The front end portion of the main connecting arm is connected to the transverse beam body through a first connecting member;

[0021] The rear end of the longitudinal beam body is connected to the transverse beam body through a second connecting member;

[0022] The lower end of the column is connected to the longitudinal beam body through a third connecting member.

[0023] A specific structure of the locking mechanism is further provided, wherein the locking mechanism comprises at least one locking assembly, and the locking assembly comprises a second fastener and an arc-shaped groove;

[0024] The arc-shaped groove is arranged on the bracket plate;

[0025] The second fastener passes through the arc groove and is threadedly connected to the displacement sensor and is used to lock and fix the displacement sensor on the bracket plate.

[0026] Furthermore, three locking assemblies are arranged in sequence along the circumferential direction with the rotation center of the displacement sensor as the center of the circle.

[0027] Furthermore, the center of the arc groove is located on the rotation center of the displacement sensor.

[0028] Further, the bracket plate is connected to the upper end of the column through at least one connecting assembly;

[0029] The connecting assembly includes a waist-shaped groove and a third fastener;

[0030] The waist-shaped groove is arranged on the bracket plate and extends in the up-down direction;

[0031] The third fastener passes through the waist-shaped groove and is threadedly connected to the upper end of the column. The third fastener is used to lock and fix the bracket plate on the upper end of the column.

[0032] After adopting the above technical solution, the embodiment of the present application can directly detect the stroke of the pedal through the displacement sensor, so that the detection result is more accurate, and by rotating the displacement sensor to a suitable angle, the measurement direction of the displacement sensor can be consistent with the direction of the pedal stroke, which can further improve the accuracy of detecting the pedal stroke, so as to provide a basis for optimizing the dynamic pedal feel of the vehicle. In addition, the main connecting arm is connected to the seat frame, and the mounting frame is connected to the main connecting arm and supported on the floor of the cab, so that the mounting frame can remain stable to prevent the displacement sensor from shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the on-vehicle test device for brake pedal travel of the utility model installed on a vehicle;

[0034] Figure 2 It is a structural schematic diagram of the vehicle-mounted test device for brake pedal stroke of the utility model;

[0035] Figure 3 It is a structural schematic diagram of the support plate, displacement sensor and locking mechanism of the utility model. DETAILED DESCRIPTION

[0036] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0037] like Figures 1 to 3 As shown, a vehicle-mounted test device for brake pedal stroke includes a main connecting arm 1, a mounting frame 2, a column 3, a bracket plate 4, a displacement sensor 5 and a locking mechanism;

[0038] The vehicle has a seat frame 6, a cab floor 7 and pedals 8;

[0039] The rear end of the main connecting arm 1 is used to be connected to the seat frame 6;

[0040] The mounting frame 2 is connected to the front end of the main connecting arm 1 and is used to be supported on the cab floor 7;

[0041] The lower end of the column 3 is connected to the mounting frame 2;

[0042] The bracket plate 4 is connected to the upper end of the column 3;

[0043] The displacement sensor 5 is rotatably connected to the bracket plate 4, and the displacement sensor 5 is used to rotate to align with the pedal 8 and make the measuring direction of the displacement sensor 5 consistent with the stroke direction of the pedal 8;

[0044] The locking mechanism is connected to the displacement sensor 5 and is used to lock and fix the displacement sensor 5 on the bracket plate 4 after the displacement sensor 5 is rotated into place. Specifically, in the embodiment of the present application, the travel of the pedal 8 can be directly detected by the displacement sensor 5, so that the detection result is more accurate, and by rotating the displacement sensor 5 to a suitable angle, the measurement direction of the displacement sensor 5 can be consistent with the travel direction of the pedal 8, which can further improve the accuracy of detecting the travel of the pedal 8, so as to provide a basis for optimizing the dynamic pedal 8 feeling of the vehicle. In addition, the main connecting arm 1 is connected to the seat frame 6, and the mounting frame 2 is connected to the main connecting arm 1 and supported on the cab floor 7, so that the mounting frame 2 can be kept stable to prevent the displacement sensor 5 from shaking. In this embodiment, the vehicle can be a heavy truck, and the driver's feet need to be displaced in the left and right directions with the displacement sensor 5 during detection to prevent the driver's feet from blocking the pedal 8. Among them, the specific structures of the displacement sensor 5, the seat frame 6 and the cab floor 7 are all prior arts well known to those skilled in the art, and are not described in detail in this embodiment.

[0045] like Figure 1 , 2As shown, the rear end of the main connecting arm 1 can be connected to the seat frame 6 by a first fastener, and the main connecting arm 1 is used to rotate up and down into position with the first fastener as the rotation center when the first fastener is loosened, and the first fastener is used to lock and fix the main connecting arm 1 to the seat frame 6 after the main connecting arm 1 is rotated up and down into position. Specifically, when the first fastener is loosened, the angle of the main connecting arm 1 is rotated up and down, thereby adjusting the height position of the mounting frame 2, thereby enabling the mounting frame 2 to adapt to the height change of the cab floor 7 and support it on the cab floor 7, so as to maintain the stability of the mounting frame 2. When the angle of the main connecting arm 1 is adjusted to the right position, the first fastener is tightened again to lock and fix the main connecting arm 1 to the seat frame 6. Further, in some embodiments, the rear end of the main connecting arm 1 can also be connected to the seat frame 6 through a magnetic seat.

[0046] like Figure 1 , 2 As shown, the mounting frame 2 may include a transverse beam body 9 and a longitudinal beam body 10;

[0047] The transverse beam body 9 extends in the left-right direction and is connected to the front end of the main connecting arm 1;

[0048] The longitudinal beam body 10 extends in the front-rear direction, and the rear end of the longitudinal beam body 10 is connected to the transverse beam body 9;

[0049] The lower end of the column 3 is connected to the longitudinal beam 10;

[0050] The transverse beam 9 and the longitudinal beam 10 are both used for supporting on the cab floor 7 .

[0051] like Figure 2 As shown, two main connecting arms 1 are arranged in parallel;

[0052] The transverse beam body 9 and the longitudinal beam body 10 are both aluminum profiles;

[0053] The front end of the main connecting arm 1 is connected to the transverse beam body 9 through a first connecting member 11;

[0054] The rear end of the longitudinal beam body 10 is connected to the transverse beam body 9 via a second connecting member 12;

[0055] The lower end of the column 3 is connected to the longitudinal beam 10 through the third connecting piece 13; specifically, the aluminum profile is provided with a mounting groove, and when the first connecting piece 11 is loosened, the spacing between the two main connecting arms 1 can be adjusted to adapt to seat frames 6 of different widths; when the second connecting piece 12 is loosened, the left and right position of the longitudinal beam 10 can be adjusted, and when the third connecting piece 13 is loosened, the front and rear position of the column 3 can be adjusted; when the locking mechanism is loosened, the displacement sensor 5 can be rotated to adjust the angle of the displacement sensor 5, and then the position and angle of the displacement sensor 5 can be adjusted to align the displacement sensor 5 with the pedal 8 and make the measurement direction of the displacement sensor 5 consistent with the stroke direction of the pedal 8, thereby improving the accuracy of the displacement sensor 5 detecting the stroke of the pedal 8. When all adjustments are in place, the first connecting piece 11, the second connecting piece 12, and the third connecting piece 13 are all tightened to lock the position of the displacement sensor 5, and the angle of the displacement sensor 5 is locked by the locking mechanism. Among them, the first connecting member 11, the second connecting member 12 and the third connecting member 13 are all right-angle connecting members, and the specific structure of the right-angle connecting members is the prior art well known to those skilled in the art, and will not be described in detail in this embodiment.

[0056] like Figure 3 As shown, the locking mechanism includes at least one locking assembly, and the locking assembly may include a second fastener 14 and an arc-shaped groove 15;

[0057] The arc groove 15 is provided on the bracket plate 4;

[0058] The second fastener 14 is threadedly connected to the displacement sensor 5 after passing through the arc groove 15 and is used to lock and fix the displacement sensor 5 on the bracket plate 4; specifically, when the displacement sensor 5 rotates, the second fastener 14 can move in the arc groove 15, and when the second fastener 14 is tightened, the angle of the displacement sensor 5 can be locked; in this embodiment, the angle adjustment range of the displacement sensor 5 is 0 to 25°.

[0059] In this embodiment, three locking assemblies are sequentially arranged along the circumferential direction with the rotation center of the displacement sensor 5 as the center, and the center of the arc groove 15 is located on the rotation center of the displacement sensor 5 .

[0060] like Figure 3 As shown, the bracket plate 4 can be connected to the upper end of the column 3 through at least one connecting component;

[0061] The connecting assembly may include a waist-shaped groove 16 and a third fastener 17;

[0062] The waist-shaped groove 16 is provided on the bracket plate 4 and the waist-shaped groove 16 extends in the up-down direction;

[0063] The third fastener 17 passes through the waist-shaped groove 16 and is threadedly connected to the upper end of the column 3. The third fastener 17 is used to lock and fix the bracket plate 4 on the upper end of the column 3; specifically, when the third fastener 17 is loosened, the position of the bracket plate 4 can be adjusted up and down, thereby adjusting the height of the displacement sensor 5, and when the second fastener 14 is loosened, the displacement sensor 5 can be rotated, thereby adjusting the angle of the displacement sensor 5, so as to more conveniently adjust the displacement sensor 5 to be aligned with the pedal 8 and make the measuring direction of the displacement sensor 5 consistent with the stroke direction of the pedal 8.

[0064] In this embodiment, the first fastener, the second fastener 14 and the third fastener 17 can all be bolts. The brake pedal stroke vehicle-mounted testing device of the application embodiment is easy to adjust, has high adaptability, is very convenient to use, and has more accurate detection.

[0065] In summary, in the embodiment of the present application, the travel of the pedal 8 can be directly detected by the displacement sensor 5, so that the detection result is more accurate, and by rotating the displacement sensor 5 to a suitable angle, the measurement direction of the displacement sensor 5 can be consistent with the travel direction of the pedal 8, which can further improve the accuracy of detecting the travel of the pedal 8, so as to provide a basis for optimizing the dynamic pedal 8 feel of the vehicle. In addition, the main connecting arm 1 is connected to the seat frame 6, and the mounting frame 2 is connected to the main connecting arm 1 and supported on the cab floor 7, so that the mounting frame 2 can remain stable to prevent the displacement sensor 5 from shaking.

[0066] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle-mounted test device for brake pedal travel, characterized in that: It comprises a main connecting arm (1), a mounting frame (2), a column (3), a bracket plate (4), a displacement sensor (5) and a locking mechanism; The vehicle is provided with a seat frame (6), a cab floor (7) and pedals (8); The rear end of the main connecting arm (1) is used for connecting to the seat frame (6); The mounting frame (2) is connected to the front end of the main connecting arm (1) and is used to be supported on the cab floor (7); The lower end of the column (3) is connected to the mounting frame (2); The support plate (4) is connected to the upper end of the column (3); The displacement sensor (5) is rotatably connected to the bracket plate (4), and the displacement sensor (5) is used to rotate to align with the pedal (8) and make the measurement direction of the displacement sensor (5) consistent with the stroke direction of the pedal (8); The locking mechanism is connected to the displacement sensor (5) and is used to lock and fix the displacement sensor (5) on the bracket plate (4) after the displacement sensor (5) is rotated into place.

2. The vehicle-mounted test device for brake pedal travel according to claim 1, characterized in that: The rear end of the main connecting arm (1) is connected to the seat frame (6) via a first fastener. The main connecting arm (1) is used to rotate up and down into position with the first fastener as the rotation center when the first fastener is loosened. The first fastener is used to lock and fix the main connecting arm (1) to the seat frame (6) after the main connecting arm (1) is rotated up and down into position.

3. The vehicle-mounted test device for brake pedal travel according to claim 1, characterized in that: The mounting frame (2) comprises a transverse beam body (9) and a longitudinal beam body (10); The transverse beam body (9) extends in the left-right direction and is connected to the front end of the main connecting arm (1); The longitudinal beam body (10) extends in the front-rear direction, and the rear end portion of the longitudinal beam body (10) is connected to the transverse beam body (9); The lower end of the column (3) is connected to the longitudinal beam (10); The transverse beam body (9) and the longitudinal beam body (10) are both used for supporting on the cab floor (7).

4. The vehicle-mounted test device for brake pedal travel according to claim 3, characterized in that: The main connecting arms (1) are provided with two in parallel; The transverse beam body (9) and the longitudinal beam body (10) are both made of aluminum profiles; The front end of the main connecting arm (1) is connected to the transverse beam body (9) via a first connecting member (11); The rear end of the longitudinal beam body (10) is connected to the transverse beam body (9) via a second connecting member (12); The lower end of the column (3) is connected to the longitudinal beam (10) via a third connecting member (13).

5. The vehicle-mounted test device for brake pedal travel according to claim 1, characterized in that: The locking mechanism comprises at least one locking assembly, wherein the locking assembly comprises a second fastener (14) and an arc-shaped groove (15); The arc-shaped groove (15) is arranged on the bracket plate (4); The second fastener (14) passes through the arc-shaped groove (15) and is threadedly connected to the displacement sensor (5) and is used to lock and fix the displacement sensor (5) on the bracket plate (4).

6. The vehicle-mounted test device for brake pedal travel according to claim 5, characterized in that: The locking components are arranged in sequence in three along the circumferential direction with the rotation center of the displacement sensor (5) as the center of the circle.

7. The vehicle-mounted test device for brake pedal travel according to claim 5, characterized in that: The center of the arc groove (15) is located on the rotation center of the displacement sensor (5).

8. The vehicle-mounted test device for brake pedal travel according to claim 1, characterized in that: The support plate (4) is connected to the upper end of the column (3) via at least one connecting assembly; The connecting assembly comprises a waist-shaped groove (16) and a third fastener (17); The waist-shaped groove (16) is arranged on the support plate (4) and the waist-shaped groove (16) extends in the up-down direction; The third fastener (17) passes through the waist-shaped groove (16) and is threadedly connected to the upper end of the column (3). The third fastener (17) is used to lock and fix the bracket plate (4) on the upper end of the column (3).

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