A brake pedal assembly with an angle sensor

Abstract

The utility model provides a kind of brake pedal assembly with angle sensor, including base subassembly, pedal arm, center pivot and angle sensor, base subassembly includes left support, right support, connecting support and upper mounting support, left support and right support are fixedly connected between upper mounting and connecting support, angle sensor is fixedly installed on the outer side end of right support, further include split pin, the both sides end of center pivot is rotatably connected left support and right support, and sleeve pipe is sleeved, pedal arm is fixedly installed on sleeve pipe, sleeve pipe and center pivot are fixedly connected by split pin, the side end of center pivot is fixedly installed with plug block, the side end of the pivot of angle sensor is opened with the plug block matched with the plug groove, plug block inserts plug groove. The utility model can realize the rotation angle of pedal arm is accurately transmitted to angle sensor, reduce the part quantity and weight of base subassembly, reduce the production cost of base subassembly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle braking technology, and in particular to a brake pedal assembly with an angle sensor. Background Technology

[0002] In the automotive industry chain, the brake pedal is an indispensable component. Adding an angle sensor to the pedal allows for accurate measurement of the pedal angle during braking, providing essential input information to the vehicle control system and ensuring vehicle performance and safety. Simultaneously, the accuracy and reliability of the pedal angle sensor also significantly impact the driver's driving experience and handling feel.

[0003] In traditional brake pedal assemblies, the central pivot is fixed to the left and right brackets of the base assembly via connecting screws and lock nuts, and does not rotate. After bearings are installed between the pedal arm assembly and the base assembly, the pedal arm assembly rotates around the central pivot. The fixed central pivot in this traditional structure cannot transmit the pedal arm rotation angle to the angle sensor. Furthermore, because the pedal arm assembly is located inside the base assembly, there is insufficient space to accommodate a transmission structure, making it impossible to accurately transmit the pedal arm rotation angle to the angle sensor. Utility Model Content

[0004] The present invention aims to provide a brake pedal assembly with an angle sensor, so as to accurately transmit the rotation angle of the pedal arm to the angle sensor.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a brake pedal assembly with an angle sensor, including a base assembly, a pedal arm, a central rotating shaft, and an angle sensor. The base assembly includes a left bracket, a right bracket, a connecting bracket, and an upper mounting bracket. The left and right brackets are fixedly connected to the upper mounting bracket and the connecting bracket. The angle sensor is fixedly mounted on the outer end of the right bracket. A pedal piece is fixedly mounted on the end of the pedal arm away from the central rotating shaft, and a cotter pin is also included. The two ends of the central rotating shaft are rotatably connected to the left and right brackets respectively, and a sleeve is sleeved on them. The sleeve is located between the left and right brackets. The pedal arm is fixedly mounted on the sleeve. The sleeve and the central rotating shaft are fixedly connected by the cotter pin. A plug is fixedly mounted on the side end of the central rotating shaft. A slot adapted to the plug is opened on the rotating shaft side end of the angle sensor. The plug is inserted into the slot so that the central rotating shaft drives the rotating shaft of the angle sensor to rotate together.

[0006] As a preferred embodiment of the above solution, the sleeve has a first mounting hole, the central rotating shaft has a second mounting hole, and the cotter pin is inserted into the first mounting hole and the second mounting hole, thereby forming a fixed connection between the sleeve and the central rotating shaft.

[0007] More preferably, a spring bushing is fitted onto the sleeve, a torsion spring is fitted onto the spring bushing, a limit hole is provided on the upper mounting bracket, the upper end of the torsion spring is slidably disposed in the limit hole, and the lower end is engaged with the pedal arm.

[0008] More preferably, both the left and right supports are provided with a rotation center hole, a flange sleeve is fixedly installed in the rotation center hole, and a shaft bushing is sleeved on both ends of the central rotating shaft. The flange sleeve is sleeved on the shaft bushing, thereby forming a rotational connection between the central rotating shaft and the left and right supports.

[0009] More preferably, the length of the flange sleeve is greater than or equal to the length of the pivot bushing.

[0010] More preferably, the inner diameter of the flange sleeve is equal to the outer diameter of the rotating shaft bushing.

[0011] The beneficial effects of this utility model are:

[0012] 1. By using a cotter pin to fix the connecting sleeve and the central rotating shaft, and the plug-in slot, the pedal arm can rotate together with the central rotating shaft and the rotating shaft of the angle sensor, thereby accurately transmitting the rotation angle of the pedal arm to the angle sensor.

[0013] 2. The central pivot no longer needs to be fixed to the left and right brackets by connecting bolts and locking nuts, which reduces the number of parts and weight of the base assembly and lowers the production cost of the base assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure of the base assembly.

[0016] Figure 3 yes Figure 1 Diagram showing the connection relationship between the middle pedal arm and the sleeve.

[0017] Figure 4 This is a diagram showing the connection relationship between the sleeve and the spring bushing in this utility model.

[0018] Figure 5 yes Figure 4 A sectional view. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-5As shown, a brake pedal assembly with an angle sensor includes a base assembly, a pedal arm 6, a central rotating shaft 14, and an angle sensor 4. The base assembly includes a left bracket 1, a right bracket 3, a connecting bracket 5, and an upper mounting bracket 2. The left bracket 1 and the right bracket 3 are both fixedly connected to the upper mounting bracket 2 and the connecting bracket 5. The angle sensor 4 is fixedly mounted on the outer end of the right bracket 3. A pedal piece 7 is fixedly mounted on the end of the pedal arm 6 away from the central rotating shaft 14, and a cotter pin 9 is also included. The two ends of the central rotating shaft 14 are rotatably connected to the left bracket 1 and the right bracket 3, respectively, and are fitted with sleeves 8. The sleeves 8 are located between the left bracket 1 and the right bracket 3. The pedal arm 6 is fixedly mounted on the sleeves 8. The sleeves 8 and the central rotating shaft 14 are fixedly connected by the cotter pin 9. A plug 15 is fixedly mounted on the side end of the central rotating shaft 14. A slot adapted to the plug 15 is opened on the rotating shaft side end of the angle sensor 4. The plug 15 is inserted into the slot so that the central rotating shaft 14 drives the rotating shaft of the angle sensor 4 to rotate together. A first mounting hole is provided on the sleeve 8, and a second mounting hole is provided on the central rotating shaft 14. A cotter pin 9 is inserted into the first and second mounting holes, thereby forming a fixed connection between the sleeve 8 and the central rotating shaft 14. A rotating center hole is provided on both the left bracket 1 and the right bracket 3, and a flanged sleeve 12 is fixedly installed in the rotating center hole. Rotating shaft bushings 16 are fitted onto both ends of the central rotating shaft 14, and the flanged sleeve 12 fits onto the rotating shaft bushings 16, thereby forming a rotatable connection between the central rotating shaft 14 and the left bracket 1 and the right bracket 3. The length of the flanged sleeve 12 is greater than or equal to the length of the rotating shaft bushing 16. The inner diameter of the flanged sleeve 12 is equal to the outer diameter of the rotating shaft bushing 16.

[0021] When pedal arm 6 rotates, sleeve 8 rotates via cotter pin 9, causing central shaft 14 to rotate. Central shaft 14 then rotates via insert block 15 and slot, causing the shaft of angle sensor 4 to rotate synchronously. Insert block 15 can be a rectangular head with a rectangular cross-section. It can be formed by stamping and flanging the left bracket 1 and right bracket 3 to create a rotating center hole and a flanged edge. The flanged edge of the rotating center hole can replace the flanged sleeve 12. Angle sensor 4 is existing technology and will not be discussed further here.

[0022] A spring bushing 13 is fitted onto the sleeve 8, and a torsion spring 10 is fitted onto the spring bushing 13. A limit hole 11 is provided on the upper mounting bracket 2. The upper end of the torsion spring 10 is slidably set in the limit hole 11, and the lower end is engaged with the pedal arm 6.

[0023] After the pedal arm 6 rotates downward, the torsion spring 10 can return the pedal arm 6 to its original position. The torsion spring 10 is sleeved on the spring bushing 13 to prevent abnormal noise when the torsion spring 10 returns to its original position.

[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brake pedal assembly with an angle sensor, comprising a base assembly, a pedal arm (6), a central pivot (14), and an angle sensor (4), wherein the base assembly comprises a left bracket (1), a right bracket (3), a connecting bracket (5), and an upper mounting bracket (2), wherein the left bracket (1) and the right bracket (3) are both fixedly connected to the upper mounting bracket (2) and the connecting bracket (5), the angle sensor (4) is fixedly mounted on the outer end of the right bracket (3), and a pedal piece (7) is fixedly mounted on the end of the pedal arm (6) away from the central pivot (14), characterized in that: It also includes a cotter pin (9), the two ends of the central rotating shaft (14) are rotatably connected to the left bracket (1) and the right bracket (3) respectively, and are fitted with a sleeve (8). The sleeve (8) is located between the left bracket (1) and the right bracket (3). The pedal arm (6) is fixedly installed on the sleeve (8). The sleeve (8) and the central rotating shaft (14) are fixedly connected by the cotter pin (9). A plug (15) is fixedly installed on the side end of the central rotating shaft (14). A slot adapted to the plug (15) is opened on the rotating shaft side end of the angle sensor (4). The plug (15) is inserted into the slot so that the central rotating shaft (14) drives the rotating shaft of the angle sensor (4) to rotate together.

2. The brake pedal assembly with angle sensor according to claim 1, characterized in that: The sleeve (8) has a first mounting hole, and the central rotating shaft (14) has a second mounting hole. The cotter pin (9) is inserted into the first mounting hole and the second mounting hole, thereby forming a fixed connection between the sleeve (8) and the central rotating shaft (14).

3. The brake pedal assembly with angle sensor according to claim 1, characterized in that: A spring bushing (13) is fitted onto the sleeve (8), and a torsion spring (10) is fitted onto the spring bushing (13). A limit hole (11) is provided on the upper mounting bracket (2). The upper end of the torsion spring (10) is slidably disposed in the limit hole (11), and the lower end is engaged with the pedal arm (6).

4. A brake pedal assembly with an angle sensor according to claim 1, characterized in that: Both the left support (1) and the right support (3) are provided with a rotation center hole. A flange sleeve (12) is fixedly installed in the rotation center hole. A shaft bushing (16) is sleeved on both ends of the central rotating shaft (14). The flange sleeve (12) is sleeved on the shaft bushing (16), thereby forming a rotational connection between the central rotating shaft (14) and the left support (1) and the right support (3).

5. A brake pedal assembly with an angle sensor according to claim 4, characterized in that: The length of the flange sleeve (12) is greater than or equal to the length of the pivot bushing (16).

6. A brake pedal assembly with an angle sensor according to claim 4, characterized in that: The inner diameter of the flange sleeve (12) is equal to the outer diameter of the rotating shaft bushing (16).

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