Brake pedal assembly and vehicle

Abstract

The utility model discloses a brake pedal assembly and a vehicle. The brake pedal assembly is used for the vehicle and comprises a brake pedal support, a brake pedal and a brake pedal, the cam part comprises a first rotating shaft and a cam connected with the first rotating shaft, the first rotating shaft is rotationally connected with the brake pedal support, and an arc-shaped groove is formed in the cam; the upper pedal arm is rotationally connected with the first rotating shaft; the lower pedal arm is arranged at the lower end of the upper pedal arm and is rotationally connected with the upper pedal arm through a second rotating shaft; the half-moon plate is rotationally connected with the second rotating shaft, a clamping protrusion is arranged on the half-moon plate, and the clamping protrusion is arranged in the arc-shaped groove; and the driving mechanism is connected with the brake pedal bracket. According to the brake pedal assembly, the lower end of the lower pedal arm can be prevented from invading a cab, the protection for a driver is improved, the braking capacity of a vehicle is ensured, meanwhile, the existing front cabin layout does not need to be adjusted, the structure of a front wall plate does not need to be enhanced, and the development cost and the weight of a vehicle body are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a brake pedal assembly and a vehicle. Background Art

[0002] In a collision, the booster / dashboard can intrude into the passenger compartment, causing the brake pedal arm to tilt upward and intrude upon the driver's calf and foot. Current brake pedal structures designed to prevent this include adding a shift lever, staggering the booster push rod and pedal arm, passive crushing mechanisms, and passively destroying the brake pedal's rotation axis. Alternatively, changes to the front cabin layout and strengthening of the dashboard structure can be employed to minimize brake pedal intrusion into the passenger compartment.

[0003] The current technical solution has the following obvious disadvantages: 1. Adding a barrier rod. When the vehicle load is heavy or the driving speed is too high, the barrier rod will slip when blocking the intrusion of the pedal arm, and ultimately it will not be able to avoid the damage caused by the upward intrusion of the brake pedal arm; 2. The staggered layout structure of the booster push rod and the pedal arm takes up a very large space in the passenger compartment, which is not conducive to layout; 3. Passive collapse and destruction of the normal structure of the brake pedal will cause the brake pedal to fail in the event of a collision, which will increase the safety risks of the passengers. At the same time, the passive anti-collision effect and the consistency of vehicle functional safety cannot be effectively guaranteed. 4. Changing the front cabin layout will consume a lot of R&D and design manpower, and it will not be possible to quickly iterate existing old models; and strengthening the front panel structure will increase the weight of the vehicle, increase design costs, and have limited effects. The above methods all have great limitations. Utility Model Content

[0004] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention provides a brake pedal assembly that, in the event of a vehicle collision, prevents the lower end of the lower pedal arm from intruding into the cockpit, thereby improving driver protection and ensuring the vehicle's braking capability. Furthermore, the assembly eliminates the need for adjustments to the existing front cabin layout or reinforcement of the dash panel structure, thereby reducing development costs and vehicle weight.

[0005] The utility model also provides a vehicle, comprising the above-mentioned brake pedal assembly.

[0006] According to the brake pedal assembly of the embodiment of the present invention, it is used for a vehicle and includes: a brake pedal bracket; a cam member, the cam member includes a first rotating shaft and a cam connected to the first rotating shaft, the first rotating shaft is rotatably connected to the brake pedal bracket, and the cam is provided with an arc groove with the axis of the first rotating shaft as the center of the circle, and one end of the arc groove is open; an upper pedal arm, the upper pedal arm is rotatably connected to the first rotating shaft; a lower pedal arm, the lower pedal arm is provided at the lower end of the upper pedal arm, and is rotatably connected to the lower pedal arm through a second rotating shaft, and the second rotating shaft is located below the first rotating shaft; a meniscus, the meniscus is rotatably connected to the second rotating shaft, a latching protrusion is provided on the meniscus, and the latching protrusion is provided in the arc groove; a driving mechanism, the driving mechanism is connected to the brake pedal bracket, and is used to drive the cam member to rotate after receiving a collision signal to disengage the latching protrusion from the arc groove.

[0007] According to the brake pedal assembly of the embodiment of the present invention, the upper pedal arm is rotatably connected to the first rotating shaft through the cam provided with an arc groove with the axis of the first rotating shaft as the center of the circle; the lower pedal arm is provided at the lower end of the upper pedal arm, and is rotatably connected to the lower pedal arm through the second rotating shaft, and the second rotating shaft is located below the first rotating shaft; the meniscus is rotatably connected to the second rotating shaft, and a latching protrusion is provided on the meniscus, and the latching protrusion is provided in the arc groove; the driving mechanism is connected to the brake pedal bracket, and is used to drive the cam part to rotate after receiving a collision signal to disengage the latching protrusion from the arc groove. When the vehicle is driving normally, the latching protrusion is provided in the arc groove. At this time, the lower pedal arm, the meniscus and the upper pedal arm form a whole and rotate around the first rotating shaft, ensuring a good pedaling experience for the driver. In the event of a frontal collision, the latch disengages the arcuate groove, disengaging the lower pedal arm, meniscus, and upper pedal arm. The second pivot moves rearward, while the lower end of the lower pedal arm simultaneously moves forward around the second pivot, preventing it from intruding into the cockpit and improving driver protection. Furthermore, because the lower pedal arm, meniscus, and upper pedal arm can also rotate via the second pivot, braking capability is maintained, further enhancing driving safety. This eliminates the need to adjust the existing front cabin layout or reinforce the dash panel structure, reducing development costs and vehicle weight.

[0008] In some embodiments of the present invention, the arc-shaped slot is located above the first rotating shaft and has an open rear end.

[0009] In some embodiments of the present invention, the cam member also includes a worm gear, which is provided on the first rotating shaft and fixed relative to the cam, and the driving mechanism includes: a driving motor, which is provided on the brake pedal bracket; and a worm, which is connected to the output shaft of the driving motor and cooperates with the worm gear.

[0010] In some embodiments of the present invention, the brake pedal assembly also includes: a power assist rod, which extends along the front-to-rear direction of the vehicle, and the rear end of the power assist rod is rotatably connected to the lower pedal arm and is located below the second rotating shaft; and a stop rod, which extends along the left-right direction of the vehicle, and is arranged on the rear side of the lower pedal arm and is located below the power assist rod.

[0011] In some embodiments of the present invention, the brake pedal assembly further includes: a sensor, which is provided on the power-assisting rod and is used to detect the displacement and / or pressure of the power-assisting rod, and the sensor is communicatively connected to the drive motor.

[0012] In some embodiments of the present invention, the upper pedal arm is sleeved outside the lower pedal arm, the rear end of the upper pedal arm is open, and the meniscus is sleeved outside the upper pedal arm and the front side is open.

[0013] In some embodiments of the present invention, the upper end of the lower pedal arm has an arc-shaped notch that matches the first rotating shaft.

[0014] In some embodiments of the present invention, the second rotating shaft is a hinge.

[0015] In some embodiments of the present invention, there are two cams respectively connected to the two ends of the first rotating shaft in the length direction, and there are two latching protrusions in a one-to-one correspondence.

[0016] A vehicle according to an embodiment of the present invention includes the above-mentioned brake pedal assembly.

[0017] According to the vehicle of the embodiment of the present invention, by setting the above-mentioned brake pedal assembly, the cam is provided with an arc groove with the axis of the first rotating shaft as the center of the circle, and the upper pedal arm is rotatably connected to the first rotating shaft; the lower pedal arm is provided at the lower end of the upper pedal arm, and is rotatably connected to the lower pedal arm through the second rotating shaft, and the second rotating shaft is located below the first rotating shaft; the meniscus is rotatably connected to the second rotating shaft, and a latching protrusion is provided on the meniscus, and the latching protrusion is provided in the arc groove; the driving mechanism is connected to the brake pedal bracket, and is used to drive the cam part to rotate after receiving a collision signal so that the latching protrusion disengages the arc groove. When the vehicle is driving normally, the latching protrusion is provided in the arc groove. At this time, the lower pedal arm, the meniscus and the upper pedal arm form a whole and rotate around the first rotating shaft, ensuring a good pedaling experience for the driver. In the event of a frontal collision, the latch disengages the arcuate groove, disengaging the lower pedal arm, meniscus, and upper pedal arm. The second pivot moves rearward, while the lower end of the lower pedal arm simultaneously moves forward around the second pivot, preventing it from intruding into the cockpit and improving driver protection. Furthermore, because the lower pedal arm, meniscus, and upper pedal arm can also rotate via the second pivot, braking capability is maintained, further enhancing driving safety. This eliminates the need to adjust the existing front cabin layout or reinforce the dash panel structure, reducing development costs and vehicle weight.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a perspective view of a brake pedal assembly according to an embodiment of the present utility model;

[0021] Figure 2 1 is a side view of a brake pedal assembly according to an embodiment of the present invention, wherein some structures are not shown;

[0022] Figure 3 1 is a partial side view of a brake pedal assembly according to an embodiment of the present utility model, wherein the latching protrusion is arranged in the arc-shaped groove;

[0023] Figure 4 1 is a partial side view of a brake pedal assembly according to an embodiment of the present utility model, wherein the latching protrusion is shown disengaged from the arcuate groove;

[0024] Figure 5 Schematic diagram of a brake pedal assembly according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] 10. Brake pedal assembly;

[0027] 1. Brake pedal bracket; 11. Washer;

[0028] 2. Cam member; 21. First rotating shaft; 22. Cam; 221. Arc groove;

[0029] 3. Upper pedal arm;

[0030] 4. Lower pedal arm; 41. Second rotating shaft; 42. Arc-shaped notch; 43. Pedal pad;

[0031] 5. Meniscus; 51. Card convex;

[0032] 6. Driving mechanism; 61. Driving motor;

[0033] 7. Power lever;

[0034] 8. Gear lever;

[0035] 9. Sensor. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, 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 cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0039] Reference below Figure 1-Figure 5 A brake pedal assembly 10 according to an embodiment of the present invention is described.

[0040] like Figure 1-Figure 5 As shown, a brake pedal assembly 10 according to an embodiment of the present invention is used for a vehicle and includes: a brake pedal bracket 1 , a cam member 2 , an upper pedal arm 3 , a lower pedal arm 4 , a meniscus 5 and a drive mechanism 6 .

[0041] The cam member 2 includes a first rotating shaft 21 and a cam 22 connected to the first rotating shaft 21. The first rotating shaft 21 is rotatably connected to the brake pedal bracket 1. The cam 22 is provided with an arc groove 221 with the axis of the first rotating shaft 21 as the center of the circle, and one end of the arc groove 221 is open; the upper pedal arm 3 is rotatably connected to the first rotating shaft 21; the lower pedal arm 4 is provided at the lower end of the upper pedal arm 3, and is rotatably connected to the lower pedal arm 4 through the second rotating shaft 41, and the second rotating shaft 41 is located below the first rotating shaft 21; the meniscus 5 is rotatably connected to the second rotating shaft 41, and a locking protrusion 51 is provided on the meniscus 5, and the locking protrusion 51 is provided in the arc groove 221; the driving mechanism 6 is connected to the brake pedal bracket 1, and is used to drive the cam member 2 to rotate after receiving a collision signal so that the locking protrusion 51 disengages from the arc groove 221.

[0042] It should be noted that, Figure 1-Figure 5 As shown, the brake pedal assembly 10 also includes: a pedal pad 43, which is connected to the lower end of the lower pedal arm 4 and is arranged on the rear side of the lower pedal arm 4. The driver can step on the pedal pad 43, thereby driving the lower pedal arm 4 to rotate around the second rotating shaft 41 and the lower end of the lower pedal arm 4 to rotate forward. At this time, the meniscus 5 will also rotate around the second rotating shaft 41 in the same direction, that is, the latching protrusion 51 will rotate around the second rotating shaft 41 in the same direction. For example, in the present invention, viewed from the left side to the right side of the vehicle, the driver steps on the pedal pad 43, which will drive the lower pedal arm 4 to rotate clockwise around the second rotating shaft 41, thereby causing the latching protrusion 51 to rotate clockwise around the second rotating shaft 41.

[0043] It can be understood that the distance between the clamping protrusion 51 and the second rotating shaft 41 is greater than the distance between the clamping protrusion 51 and the first rotating shaft 21. The clamping protrusion 51 is provided on one side of the meniscus 5 along the left-right direction of the vehicle, so that the clamping protrusion 51 can be provided in the arc groove 221 and can move along the length direction of the arc groove 221. Figure 2 and Figure 3 As shown, when the locking protrusion 51 is set in the arc groove 221, the vehicle is in a normal driving state and no collision occurs. Since the cam member 2 is driven by the driving mechanism 6 when a collision signal is received, the cam member 2 and the brake pedal assembly 10 remain relatively stationary under normal driving conditions. Since the distance between the locking protrusion 51 and the second rotating shaft 41 is greater than the distance between the locking protrusion 51 and the first rotating shaft 21, when the locking protrusion 51 moves in the arc groove 221, the rotation path of the locking protrusion 51 along the second rotating shaft 41 will interfere with the movement path of the locking protrusion 51 in the arc groove 221. At this time, the cam member 2 and the brake pedal assembly 10 remain relatively stationary, thereby driving the second rotating shaft 41 to rotate around the first rotating shaft 21 to achieve smooth movement of the locking protrusion 51 in the arc groove 221. As the second rotating shaft 41 rotates, the upper pedal arm 3 can be driven to rotate around the first rotating shaft 21 in the same direction.

[0044] Thus, when the latch 51 is positioned in the arcuate groove 221, the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 form a single unit and rotate about the first rotation axis 21. That is, during normal vehicle operation, the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 form a single unit, which improves the rigidity of the unit, provides better force absorption, and provides a better pedaling feel for the driver. Furthermore, because the second rotation axis 41 is located below the first rotation axis 21, the second rotation axis 41 is closer to the pedal pad 43 than the first rotation axis 21. That is, the distance between the pedal pad 43 and the first rotation axis 21 is greater than the distance between the pedal pad 43 and the first rotation axis 21. As a result, the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 form a single unit and rotate about the first rotation axis 21, which reduces the driver's effort when the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 rotate about the second rotation axis 41, ensuring a better pedaling experience for the driver.

[0045] Furthermore, if Figure 4 and Figure 5As shown, the brake pedal assembly 10 also includes: a power-assist rod 7, which extends along the front and rear directions of the vehicle. The rear end of the power-assist rod 7 is rotationally connected to the lower pedal arm 4 and is located below the second rotating shaft 41. If at this time the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 are still a whole and rotate around the first rotating shaft 21, as the front panel invades, the power-assist rod 7 will apply a backward force to the lower pedal arm 4 and drive the lower end of the lower pedal arm 4 to move backward and upward to invade the cockpit. At this time, when the lower pedal arm 4 encounters an obstacle (such as the driver's legs), since the first rotating shaft 21 is fixed relative to the brake pedal bracket 1 in the up and down front and rear directions, the lower end of the lower pedal arm 4 will still invade the cockpit backward and upward, thereby causing damage to the driver's legs.

[0046] In the present invention, when the driving mechanism 6 receives the collision signal, the driving cam member 2 is rotated to disengage the locking protrusion 51 from the arc groove 221, thereby disintegrating the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3. At this time, when the front panel invades, the power rod 7 will apply a backward force to the lower pedal arm 4 and drive the lower end of the lower pedal arm 4 to move backward and upward to invade the cockpit. When the lower pedal arm 4 encounters an obstacle (such as the driver's legs), since the second rotating shaft 41 has no direct connection with the brake pedal bracket 1, the second rotating shaft 41 has freedom in the up and down, front and back directions, so that the second rotating shaft 41 will move backward, and at the same time, the lower end of the lower pedal arm 4 will move forward around the second rotating shaft 41, so that in the up-to-down direction, the lower pedal arm 4 gradually extends forward, thereby preventing the lower end of the lower pedal arm 4 from invading the cockpit, thereby improving protection for the driver.

[0047] At the same time, because the lower pedal arm 4, meniscus 5, and upper pedal arm 3 can also rotate via the second rotating shaft 41, the vehicle's braking capability is maintained, allowing the driver to brake the vehicle by stepping on the pedal pad 43, further improving vehicle safety during driving. Furthermore, the present invention does not require adjustments to the existing front cabin layout or reinforcement of the front panel structure, reducing development costs and vehicle weight.

[0048] Furthermore, if Figure 1 As shown, the front end of the brake pedal bracket 1 has a washer 11, so that there is a buffer between the brake pedal bracket 1 and the front panel of the vehicle, reducing the amount of impact on the brake pedal bracket 1, thereby further reducing damage to the user's legs.

[0049] According to the brake pedal assembly 10 of the embodiment of the present invention, the cam 22 is provided with an arc groove 221 with the axis of the first rotating shaft 21 as the center, and the upper pedal arm 3 is rotatably connected to the first rotating shaft 21; the lower pedal arm 4 is provided at the lower end of the upper pedal arm 3, and is rotatably connected to the lower pedal arm 4 through the second rotating shaft 41, and the second rotating shaft 41 is located below the first rotating shaft 21; the meniscus 5 is rotatably connected to the second rotating shaft 41, and the meniscus 5 is provided with a locking protrusion 51, which is arranged in the arc groove 221; the driving mechanism 6 is connected to the brake pedal bracket 1, and is used to drive the cam member 2 to rotate after receiving a collision signal so that the locking protrusion 51 disengages from the arc groove 221. When the vehicle is driving normally, when the locking protrusion 51 is arranged in the arc groove 221, the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 form a whole and rotate around the first rotating shaft 21, ensuring a good pedaling experience for the driver. When the front of the vehicle is involved in a collision, the latching protrusion 51 disengages the arcuate groove 221, causing the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 to disengage. The second rotating shaft 41 moves rearward, while the lower end of the lower pedal arm 4 moves forward about the second rotating shaft 41, preventing the lower end of the lower pedal arm 4 from intruding into the cockpit, thereby improving driver protection. Furthermore, because the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 can still rotate via the second rotating shaft 41, the vehicle's braking capability is maintained, further enhancing vehicle safety during driving. This eliminates the need to adjust the existing front cabin layout or reinforce the front panel structure, reducing development costs and vehicle weight.

[0050] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the arc-shaped slot 221 is located above the first rotating shaft 21 and has an open rear end. Thus, the cam 22 of the present invention is formed.

[0051] It can be understood that in order to make the latch 51 better arranged in the arc groove 221, the latch 51 is arranged at the upper end of the meniscus 5, and the lower end of the meniscus 5 is rotatably connected to the second rotating shaft 41. The arc groove 221 is located above the first rotating shaft 21 and the rear end is open. When the latch 51 is located in the arc groove 221 and the driver does not step on the pedal pad 43, the latch 51 is located at the front end of the arc groove 221.

[0052] At this time, when the driver steps on the pedal pad 43, looking from the left side to the right side of the vehicle, the lower pedal arm 4 and the meniscus 5 rotate clockwise, driving the upper end of the lower pedal arm 4 to move backward, and the upper end of the meniscus 5 to move backward, thereby driving the latch 51 to move toward the rear end of the arc groove 221. Since the arc groove 221 is located above the first rotating shaft 21, and the first rotating shaft 21 is located above the second rotating shaft 41, the distance between the latch 51 and the second rotating shaft 41 is greater than the distance between the latch 51 and the first rotating shaft 21. Therefore, when the latch 51 is in the arc groove 221, During movement, the path of the latching protrusion 51 rotating along the second rotating shaft 41 will interfere with the path of the latching protrusion 51 moving in the arc groove 221. At this time, the cam member 2 and the brake pedal assembly 10 remain relatively stationary, so that the lower end of the meniscus 5 moves forward, thereby driving the second rotating shaft 41 to rotate clockwise around the first rotating shaft 21 to achieve smooth movement of the latching protrusion 51 to the rear end of the arc groove 221. At the same time, the second rotating shaft 41 rotates clockwise around the first rotating shaft 21, thereby driving the upper pedal arm 3 to rotate clockwise around the first rotating shaft 21, thereby achieving vehicle braking.

[0053] In addition, when viewed from the left side to the right side of the vehicle, when the driving mechanism 6 receives the collision signal, it will drive the cam member 2 to rotate counterclockwise to disengage the locking protrusion 51 from the arc groove 221, thereby achieving the disintegration of the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3.

[0054] In some embodiments of the present invention, Figure 1 As shown, the cam member 2 also includes a worm gear, which is provided on the first rotating shaft 21 and fixed relative to the cam 22. The driving mechanism 6 includes: a driving motor 61 and a worm. The driving motor 61 is provided on the brake pedal bracket 1; the worm is connected to the output shaft of the driving motor 61 and cooperates with the worm gear.

[0055] It can be understood that the output shaft of the drive motor 61 extends in the front-to-back direction, and the first rotating shaft 21 extends in the left-to-right direction. The mutual cooperation of the worm gear enables the torque output by the output shaft of the drive motor 61 to be converted into the torque to drive the first rotating shaft 21, thereby realizing the drive mechanism 6 driving the cam member 2 to rotate, and realizing that the drive mechanism 6 drives the cam member 2 to rotate after receiving the collision signal to make the locking protrusion 51 disengage from the arc groove 221.

[0056] In some embodiments of the present invention, Figure 1 、 Figure 4 and Figure 5 As shown, the brake pedal assembly 10 also includes: a power rod 7 and a block rod 8, the power rod 7 extends along the front and rear directions of the vehicle, the rear end of the power rod 7 is rotationally connected to the lower pedal arm 4 (for example, a universal joint connection) and is located below the second rotating shaft 41; the block rod 8 extends along the left and right directions of the vehicle, the block rod 8 is arranged on the rear side of the lower pedal arm 4 and is located below the power rod 7.

[0057] As will be understood, the booster lever 7 is connected to the brake booster, transmitting the driver's pedaling force to the brake booster to brake the vehicle, while also driving the lower pedal arm 4 back to its original position, facilitating subsequent pedaling by the driver. The provision of the stop lever 8 allows the lower pedal arm 4 to rotate about the stop lever 8, further preventing the lower end of the lower pedal arm 4 from intruding into the cockpit and preventing the lower end of the lower pedal arm 4 from striking the driver's foot before moving forward, thereby better protecting the driver.

[0058] When the driving mechanism 6 receives the collision signal, the driving cam member 2 rotates to disengage the locking protrusion 51 from the arc groove 221, thereby disintegrating the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3. At this time, when the front panel invades, the power rod 7 will apply a backward force to the lower pedal arm 4 and drive the lower end of the lower pedal arm 4 to move backward and upward to invade the cockpit. When the lower pedal arm 4 encounters the blocking rod 8, since the second rotating shaft 41 has no direct connection with the brake pedal bracket 1, the second rotating shaft 41 has freedom in the up and down, front and back directions, so that the second rotating shaft 41 will move backward At the same time, the lower end of the lower pedal arm 4 will move forward around the second rotation axis 41, that is, the lower pedal arm 4 will rotate with the barrier rod 8 as the fulcrum (or rotation axis), and at this time the upper pedal arm 3 will rotate in the opposite direction around the second rotation axis 41. For example, in the present invention, viewed from the left side to the right side of the vehicle, the lower pedal arm 4 will rotate clockwise with the barrier rod 8 as the fulcrum, and the upper pedal arm 3 will rotate counterclockwise around the second rotation axis 41, so that in the top-to-bottom direction, the lower pedal arm 4 gradually extends forward, thereby preventing the lower end of the lower pedal arm 4 from invading the cockpit, thereby improving protection for the driver.

[0059] In some embodiments of the present invention, Figure 5 As shown, the brake pedal assembly 10 also includes: a sensor 9, which is arranged on the power-assisting rod 7 and is used to detect the displacement and / or pressure of the power-assisting rod 7. The sensor 9 is communicatively connected to the drive motor 61 (it can be a direct communication connection or an indirect communication connection).

[0060] It is understandable that the sensor 9 can only detect the displacement of the power lever 7, or the sensor 9 can only detect the pressure of the power lever 7, or the sensor 9 can simultaneously detect the pressure and displacement of the power lever 7. By detecting whether one or both of the displacement and / or pressure of the power lever 7 exceed a preset value by the sensor 9, it is determined whether the front of the vehicle has collided and invaded the cockpit. When the sensor 9 detects that one or both of the displacement and / or pressure of the power lever 7 exceed a preset value,

[0061] Preferably, in the present invention, the sensor 9 can simultaneously detect the pressure and displacement of the power-assisting rod 7. When the sensor 9 detects that the displacement and pressure of the power-assisting rod 7 exceed the preset value, the collision signal is transmitted to the vehicle central control and then to the drive mechanism 6 or directly to the drive mechanism 6, thereby reducing the occurrence of misjudgment and making the operation of the brake pedal assembly 10 more accurate.

[0062] In some embodiments of the present invention, Figure 1 As shown, the upper pedal arm 3 is sleeved over the lower pedal arm 4, with the rear end of the upper pedal arm 3 open, and the meniscus 5 is sleeved over the upper pedal arm 3 with its front side open. It will be understood that the rear end of the upper pedal arm 3 is open, thereby facilitating the connection and separation between the upper pedal arm 3 and the meniscus 5 and the lower pedal arm 4, and the meniscus 5 is sleeved over the upper pedal arm 3 with its front side open, thereby facilitating the connection and separation between the meniscus 5 and the upper pedal arm 3.

[0063] In addition, since the meniscus 5 is mounted outside the upper pedal arm 3 and is open on the front side, the rear side of the meniscus 5 is closed. Therefore, when the driver steps on the pedal pad 43, the lower pedal arm 4 rotates clockwise when viewed from the left side to the right side of the vehicle. At this time, the upper end of the lower pedal arm 4 moves backward, so that it can be close to the meniscus 5, thereby better driving the meniscus 5 to rotate.

[0064] In some embodiments of the present invention, Figure 2 As shown, the upper end of the lower pedal arm 4 has an arcuate notch 42 that mates with the first rotating shaft 21. It will be appreciated that when the latch 51 is disposed in the arcuate groove 221, the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 form a single unit and rotate about the first rotating shaft 21. The arcuate notch 42 that mates with the first rotating shaft 21 at the upper end of the lower pedal arm 4 facilitates rotation of the lower pedal arm 4 about the first rotating shaft 21, making rotation smoother and ensuring a good pedaling experience for the driver.

[0065] In some embodiments of the present invention, the second rotating shaft 41 is a hinge. It is understood that the hinge can provide a more stable support due to its multi-joint design, thereby making the rotation between the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 more stable and reliable.

[0066] In some embodiments of the present invention, Figure 1 As shown, there are two cams 22 connected to the two ends of the length direction of the first rotating shaft 21, and there are two corresponding clamping protrusions 51. As a result, the sliding of the clamping protrusions 51 in the cams 22 is more stable and reliable.

[0067] A vehicle according to an embodiment of the present invention will be described below.

[0068] A vehicle according to an embodiment of the present invention includes the brake pedal assembly 10 described above.

[0069] According to the vehicle of the embodiment of the present invention, by setting the above-mentioned brake pedal assembly 10, the cam 22 is provided with an arc groove 221 with the axis of the first rotating shaft 21 as the center of the circle, and the upper pedal arm 3 is rotatably connected to the first rotating shaft 21; the lower pedal arm 4 is provided at the lower end of the upper pedal arm 3, and is rotatably connected to the lower pedal arm 4 through the second rotating shaft 41, and the second rotating shaft 41 is located below the first rotating shaft 21; the meniscus 5 is rotatably connected to the second rotating shaft 41, and the meniscus 5 is provided with a locking protrusion 51, which is arranged in the arc groove 221; the driving mechanism 6 is connected to the brake pedal bracket 1, and is used to drive the cam member 2 to rotate after receiving a collision signal so that the locking protrusion 51 disengages from the arc groove 221. When the vehicle is driving normally, when the locking protrusion 51 is arranged in the arc groove 221, the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 form a whole and rotate around the first rotating shaft 21, ensuring a good pedaling experience for the driver. When the front of the vehicle is involved in a collision, the latching protrusion 51 disengages the arcuate groove 221, causing the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 to disengage. The second rotating shaft 41 moves rearward, while the lower end of the lower pedal arm 4 moves forward about the second rotating shaft 41, preventing the lower end of the lower pedal arm 4 from intruding into the cockpit, thereby improving driver protection. Furthermore, because the lower pedal arm 4, the meniscus 5, and the upper pedal arm 3 can still rotate via the second rotating shaft 41, the vehicle's braking capability is maintained, further enhancing vehicle safety during driving. This eliminates the need to adjust the existing front cabin layout or reinforce the front panel structure, reducing development costs and vehicle weight.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A brake pedal assembly, characterized in that: For vehicles and including: brake pedal bracket; a cam member, the cam member comprising a first rotating shaft and a cam connected to the first rotating shaft, the first rotating shaft being rotatably connected to the brake pedal bracket, the cam being provided with an arcuate groove having an axis of the first rotating shaft as a circle center, one end of the arcuate groove being open; an upper pedal arm, the upper pedal arm being rotatably connected to the first rotating shaft; a lower pedal arm, the lower pedal arm being disposed at a lower end of the upper pedal arm and being rotatably connected to the lower pedal arm via a second rotating shaft, the second rotating shaft being located below the first rotating shaft; a meniscus, the meniscus being rotatably connected to the second rotating shaft, the meniscus being provided with a latching protrusion, the latching protrusion being disposed in the arc-shaped groove; A driving mechanism is connected to the brake pedal bracket and is used to drive the cam member to rotate after receiving a collision signal so that the locking protrusion disengages from the arc groove.

2. The brake pedal assembly according to claim 1, characterized in that: The arc-shaped slot is located above the first rotating shaft and has an open rear end.

3. The brake pedal assembly according to claim 1, characterized in that: The cam member further includes a worm gear, which is disposed on the first rotating shaft and fixed relative to the cam. The driving mechanism includes: a drive motor, the drive motor being arranged on the brake pedal bracket; A worm is connected to the output shaft of the drive motor and cooperates with the worm wheel.

4. The brake pedal assembly according to claim 1, characterized in that: Also includes: a power-assisting rod extending in the front-rear direction of the vehicle, a rear end of the power-assisting rod being rotatably connected to the lower pedal arm and being located below the second rotating shaft; A barrier rod extends along the left-right direction of the vehicle and is arranged on the rear side of the lower pedal arm and below the power lever.

5. The brake pedal assembly according to claim 4, characterized in that: Also includes: A sensor is provided on the power-assisting rod and is used to detect the displacement and / or pressure of the power-assisting rod. The sensor is communicatively connected with the driving mechanism.

6. The brake pedal assembly according to claim 1, characterized in that: The upper pedal arm is sleeved outside the lower pedal arm, the rear end of the upper pedal arm is open, and the meniscus is sleeved outside the upper pedal arm and the front side is open.

7. The brake pedal assembly according to claim 1, characterized in that: The upper end of the lower pedal arm has an arc-shaped notch matched with the first rotating shaft.

8. The brake pedal assembly according to claim 1, wherein: The second rotating shaft is a hinge.

9. The brake pedal assembly according to claim 1, wherein: There are two cams respectively connected to the two ends of the first rotating shaft in the length direction, and there are two locking protrusions in a one-to-one correspondence.

10. A vehicle, characterized in that: Comprising a brake pedal assembly according to any one of claims 1-9.

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