Brake pedal assembly and vehicle

Abstract

The invention 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 assembly and a brake pedal assembly, 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, protection for a driver is improved, the braking capacity of a vehicle is guaranteed, meanwhile, an existing front cabin layout does not need to be adjusted, a dash panel structure does not need to be enhanced, and the development cost and the vehicle body weight are reduced.

Description

Technical Field

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

[0002] When a vehicle collides, the booster / front panel will invade the passenger compartment, causing the brake pedal arm to passively tilt upward and invade the driver's calves and feet. The existing brake pedal structures on the market to prevent the pedal arm from invading the passenger compartment include: adding a gear lever, a booster push rod and a staggered arrangement structure of the pedal arm, a passive collapse structure, and a passive destruction of the brake pedal rotation axis position structure. Alternatively, the problem of the brake pedal invading the passenger compartment due to collision can be minimized by changing the front cabin layout and strengthening the front panel structure.

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

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a brake pedal assembly, which can not only prevent the lower end of the lower pedal arm from intruding into the cockpit when the vehicle collides, thereby improving the protection of the driver and ensuring the braking ability of the vehicle, but also does not require adjustment of the existing front cabin layout, nor does it require strengthening of the front panel structure, thereby reducing development costs and vehicle weight.

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

[0006] According to an embodiment of the present invention, the brake pedal assembly 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, the cam is provided with an arc groove with the axis of the first rotating shaft as the center, 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 arranged 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 arranged 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, an arc groove with the axis of the first rotating shaft as the center is provided on the cam, 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 member 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. When the front of the vehicle collides, the cam is disengaged from the arc groove, so that the lower pedal arm, the meniscus and the upper pedal arm are disassembled, and the second shaft moves backward. At the same time, the lower end of the lower pedal arm moves forward around the second shaft to prevent the lower end of the lower pedal arm from invading the cockpit, thereby improving the protection of the driver. In addition, since the lower pedal arm, the meniscus and the upper pedal arm can also rotate through the second shaft, the braking ability of the vehicle is guaranteed, further improving the safety of the vehicle during driving. There is no need to adjust the existing front cabin layout, nor to strengthen the front 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 wheel, which is disposed on the first rotating shaft and fixed relative to the cam, and the driving mechanism includes: a driving motor, which is disposed on the brake pedal bracket; and a worm, which is connected to the output shaft of the driving motor and cooperates with the worm wheel.

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

[0011] In some embodiments of the present invention, the brake pedal assembly further includes: a sensor, wherein the sensor is disposed 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 matched with 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 two ends of the first rotating shaft in the length direction, and there are two latching protrusions corresponding to each other.

[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, and the upper pedal arm is rotatably connected to the first rotating shaft; the lower pedal arm is arranged 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 arranged in the arc groove; 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 make the latching protrusion disengage from the arc groove. When the vehicle is driving normally, the latching protrusion is arranged 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. When the front of the vehicle collides, the cam is disengaged from the arc groove, so that the lower pedal arm, the meniscus and the upper pedal arm are disassembled, and the second shaft moves backward. At the same time, the lower end of the lower pedal arm moves forward around the second shaft to prevent the lower end of the lower pedal arm from invading the cockpit, thereby improving the protection of the driver. In addition, since the lower pedal arm, the meniscus and the upper pedal arm can also rotate through the second shaft, the braking ability of the vehicle is guaranteed, further improving the safety of the vehicle during driving. There is no need to adjust the existing front cabin layout, nor to strengthen the front 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 in part will be obvious from the following description, or will be 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 easily 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 invention;

[0021] Figure 2 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 is a partial side view of a brake pedal assembly according to an embodiment of the present invention, wherein the clamping protrusion is arranged in the arc groove;

[0023] Figure 4 is a partial side view of a brake pedal assembly according to an embodiment of the present invention, wherein the latching projection is disengaged from the arc groove;

[0024] Figure 5 is a 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] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 driving 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, and the cam 22 is provided with an arc groove 221 with the axis of the first rotating shaft 21 as the center, 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 arranged 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 latching protrusion 51, and the latching protrusion 51 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 latching 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 latch 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 latch 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 arranged on one side of the meniscus 5 along the left-right direction of the vehicle, so that the clamping protrusion 51 can be arranged 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 arranged 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 receiving the collision signal, 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] Therefore, 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, that is, when the vehicle is driving normally, the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 form a whole, which improves the rigidity of the whole, better force, and the driver's pedaling feeling is better. At the same time, because the second rotating shaft 41 is located below the first rotating shaft 21, the second rotating shaft 41 is closer to the pedal pad 43 than the first rotating shaft 21, that is, the distance between the pedal pad 43 and the first rotating shaft 21 is greater than the distance between the pedal pad 43 and the first rotating shaft 21, so that 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, compared with the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 rotating around the second rotating shaft 41, the driver's pedaling is more labor-saving, ensuring the driver's good pedaling experience.

[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, and 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 back 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 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 the protection of the driver.

[0047] At the same time, since the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 can also rotate through the second rotating shaft 41, the braking ability of the vehicle is guaranteed, and the driver can still step on the pedal pad 43 to brake the vehicle, further improving the safety of the vehicle during driving. In addition, the present invention does not need to adjust the existing front cabin layout, nor does it need to strengthen 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 the damage to the user's legs.

[0049] According to the brake pedal assembly 10 of the embodiment of the present invention, an arc groove 221 with the axis of the first rotating shaft 21 as the center is provided on the cam 22, and the upper pedal arm 3 is rotatably connected to the first rotating shaft 21; the lower pedal arm 4 is arranged 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 latching protrusion 51 is provided on the meniscus 5, and the latching protrusion 51 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 latching protrusion 51 disengages from the arc groove 221. When the vehicle is driving normally, when the latching 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 collides, the cam 51 disengages from the arc groove 221, so that the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 are disassembled, and the second shaft 41 moves backward. At the same time, the lower end of the lower pedal arm 4 moves forward around the second shaft 41 to prevent the lower end of the lower pedal arm 4 from invading the cockpit, thereby improving the protection of the driver. Since the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 can also rotate through the second shaft 41, the braking ability of the vehicle is guaranteed, and the safety of the vehicle during driving is further improved. There is no need to adjust the existing front cabin layout, nor to strengthen the front panel structure, which reduces the development cost and vehicle weight.

[0050] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the arc groove 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, 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, and the upper end of the lower pedal arm 4 is driven to move backward, and the upper end of the meniscus 5 moves backward, thereby driving the clamping protrusion 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 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. Therefore, when the clamping protrusion 51 is in the arc groove 221, During movement, the path of rotation of the latch 51 along the second rotating shaft 41 will interfere with the path of movement of the latch 51 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 latch 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 latching 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 arranged 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, and the driving motor 61 is arranged 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 for driving 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 so that the locking protrusion 51 disengages 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 stop rod 8, the power rod 7 extends along the front-rear direction 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 stop rod 8 extends along the left-right direction of the vehicle, the stop rod 8 is arranged on the rear side of the lower pedal arm 4 and is located below the power rod 7.

[0057] It is understandable that the booster rod 7 is connected to the brake booster, and is used to transmit the driver's pedaling force to the brake booster to achieve the braking of the vehicle, and is also used to drive the lower pedal arm 4 back to its original position, so as to facilitate the driver's subsequent pedaling. The setting of the stopper rod 8 allows the lower pedal arm 4 to rotate with the stopper rod 8 as a fulcrum, thereby further preventing the lower end of the lower pedal arm 4 from invading the cockpit, and also preventing the lower end of the lower pedal arm 4 from hitting the driver's feet 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 make the locking protrusion 51 disengage from the arc groove 221, so that the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 are disassembled. 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. The lower pedal arm 4 will move, and at the same time, the lower end of the lower pedal arm 4 will move forward around the second rotating shaft 41, that is, the lower pedal arm 4 will rotate with the blocking rod 8 as the fulcrum (or rotating shaft), and at this time, the upper pedal arm 3 will rotate in the opposite direction around the second rotating shaft 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 blocking rod 8 as the fulcrum, and the upper pedal arm 3 will rotate counterclockwise around the second rotating shaft 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 the protection of 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 rod 7 and is used to detect the displacement and / or pressure of the power rod 7. The sensor 9 is communicatively connected with 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. The sensor 9 detects whether one or both of the displacement and / or pressure of the power lever 7 exceed a preset value, thereby determining whether the front of the vehicle collides and invades 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 brake pedal assembly 10 work more accurately.

[0062] In some embodiments of the present invention, Figure 1 As shown, the upper pedal arm 3 is sleeved outside the lower pedal arm 4, the rear end of the upper pedal arm 3 is open, and the meniscus 5 is sleeved outside the upper pedal arm 3 and the front side is open. It can be understood that the rear end of the upper pedal arm 3 is open, so as to facilitate the combination and separation between the upper pedal arm 3 and the meniscus 5 and the lower pedal arm 4, and the meniscus 5 is sleeved outside the upper pedal arm 3 and the front side is open, so as to facilitate the combination 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 the front side is open, 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 arc-shaped notch 42 that matches the first rotating shaft 21. It can be understood that when the locking protrusion 51 is set in the arc-shaped 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, and the upper end of the lower pedal arm 4 has an arc-shaped notch 42 that matches the first rotating shaft 21, so that the lower pedal arm 4 is easy to rotate around the first rotating shaft 21, making the 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 understandable that the hinge can provide a more stable support due to its multi-joint design, so that the rotation between the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 is 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. Therefore, the sliding of the clamping protrusions 51 in the cam 22 is more stable and reliable.

[0067] A vehicle according to an embodiment of the present invention is 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 arranged 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 clamping protrusion 51, and the clamping protrusion 51 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 the collision signal so that the clamping protrusion 51 disengages from the arc groove 221. When the vehicle is driving normally, when the clamping 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 collides, the cam 51 disengages from the arc groove 221, so that the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 are disassembled, and the second shaft 41 moves backward. At the same time, the lower end of the lower pedal arm 4 moves forward around the second shaft 41 to prevent the lower end of the lower pedal arm 4 from invading the cockpit, thereby improving the protection of the driver. Since the lower pedal arm 4, the meniscus 5 and the upper pedal arm 3 can also rotate through the second shaft 41, the braking ability of the vehicle is guaranteed, and the safety of the vehicle during driving is further improved. There is no need to adjust the existing front cabin layout, nor to strengthen the front panel structure, which reduces the development cost and vehicle weight.

[0070] In the description of this specification, the description with reference to the terms "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 the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does 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.

[0071] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit 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, and 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 is disposed at the lower end of the upper pedal arm and is rotatably connected to the lower pedal arm via a second rotating shaft, wherein the second rotating shaft is located below the first rotating shaft; A meniscus, the meniscus is rotatably connected to the second rotating shaft, the meniscus is provided with a clamping protrusion, and the clamping protrusion is arranged in the arc 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 is separated 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 comprises a worm gear, which is disposed on the first rotating shaft and fixed relative to the cam. The driving mechanism comprises: A driving motor, wherein the driving motor is arranged on the brake pedal bracket; A worm is connected to the output shaft of the driving 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, the power-assisting rod extending in the front-rear direction of the vehicle, the 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 at the rear side of the lower pedal arm and below the power-assisting rod.

5. The brake pedal assembly according to claim 4, characterized in that: Also includes: A sensor is arranged 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 motor.

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, characterized in that: The second rotating shaft is a hinge.

9. The brake pedal assembly according to claim 1, characterized in that: 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 corresponding to each other.

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

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