Brake pedal assembly for vehicle and vehicle

Abstract

The present application discloses a brake pedal assembly for a vehicle and a vehicle, wherein the brake pedal assembly comprises: a base; a brake pedal, which is rotatably arranged on the base; a locking mechanism, which is arranged on the base and comprises: a locking member and a driving member and a reset member respectively connected to the locking member, wherein the locking member has a locking position for limiting the rotation of the brake pedal; wherein when the parking mechanism of the vehicle is normal, the driving member overcomes the reset force of the reset member and drives the locking member away from the locking position, and when the parking mechanism of the vehicle fails, the driving member stops working so that the reset member drives the locking member to move to the locking position. According to the brake pedal assembly of the present application, when the parking mechanism of the vehicle fails, the brake pedal can be kept in a braking state through the locking mechanism, and will not be affected by the power failure of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a brake pedal assembly for a vehicle and a vehicle. Background Art

[0002] In the related art, the brake pedal mechanism uses the ratchet and pawl to lock the brake pedal under the action of electromagnetic force and then uses hydraulics to achieve parking. This mechanism has the risk of insufficient or disappearing electromagnetic force after the vehicle is parked, the engine is turned off and the power is cut off. The pawl returns to its position under the action of the spring, resulting in parking failure. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a brake pedal assembly for a vehicle, which can keep the brake pedal in a braking state through a locking mechanism when the parking mechanism of the vehicle fails, and will not be affected by power failure of the vehicle.

[0004] The application also proposes a vehicle having the brake pedal assembly.

[0005] According to the present application, the brake pedal assembly for a vehicle includes: a base; a brake pedal, which is rotatably arranged on the base; a locking mechanism, which is arranged on the base and includes: a locking member and a driving member and a reset member respectively connected to the locking member, and the locking member has a locking position for limiting the rotation of the brake pedal; wherein when the parking mechanism of the vehicle is normal, the driving member overcomes the reset force of the reset member and drives the locking member away from the locking position, and when the parking mechanism of the vehicle fails, the driving member stops working so that the reset member drives the locking member to move to the locking position.

[0006] According to the brake pedal assembly of the embodiment of the present application, by providing a locking mechanism, when the parking mechanism of the vehicle fails, the brake pedal can be depressed first to put the vehicle in a braking state, and then the driving member can stop working, and the driving member no longer outputs driving force to the outside. At this time, the locking member can be moved to the locking position under the action of the reset member, and the locking member will limit the rotation of the brake pedal, and the brake pedal will remain in the braking state.

[0007] According to one embodiment of the present application, a first meshing tooth is provided on the brake pedal; the locking mechanism also includes: a limit gear, a second meshing tooth is provided on the limit gear, the second meshing tooth cooperates with the first meshing tooth to link the limit gear with the brake pedal, and when the locking member moves to the locking position, the locking member cooperates with the limit gear to limit the rotation of the limit gear.

[0008] According to an embodiment of the present application, one of the position limiting gear and the locking member is provided with an external spline, and the other of the position limiting gear and the locking member is provided with an internal spline that cooperates with the external spline.

[0009] According to an embodiment of the present application, the locking mechanism further includes: a mounting seat, the mounting seat is fixed on the base, and the locking member is slidably disposed on the base to approach or move away from the limiting gear.

[0010] According to one embodiment of the present application, the mounting seat includes: a bottom plate, which is fixed on the base; a first sleeve, one end of the first sleeve is fixedly connected to the bottom plate, and the other end of the first sleeve extends in a direction close to the limit gear, and the locking member is slidably arranged on the first sleeve; wherein the reset member is sleeved on the outside of the first sleeve and one end of the reset member is connected to the bottom plate, and the other end of the reset member is connected to the locking member.

[0011] According to one embodiment of the present application, a limiting member for limiting the rotation of the locking member is arranged between the first sleeve and the locking member; the limiting member includes: a limiting protrusion and a limiting groove that cooperate with each other, the limiting protrusion extends along the axial direction of the first sleeve, one of the limiting protrusion and the limiting groove is arranged on the outer side wall of the first sleeve, and the other of the limiting protrusion and the limiting groove is arranged on the locking member.

[0012] According to one embodiment of the present application, the mounting seat further includes: a second sleeve, the second sleeve is arranged on the base plate and located on the outside of the first sleeve, and the second sleeve, the first sleeve and the base plate define a positioning groove for accommodating the reset member.

[0013] According to an embodiment of the present application, the driving member is configured as an electromagnet, and the outer periphery of the base plate radially extends beyond the second sleeve to define a mounting groove for accommodating the electromagnet.

[0014] According to one embodiment of the present application, the locking mechanism further includes: a rotating shaft, the rotating shaft is fixed on the base, the rotating shaft passes through the limiting gear, the locking member and the first sleeve, and the limiting gear is rotatable relative to the rotating shaft.

[0015] The vehicle according to the present application includes the above-mentioned brake pedal assembly. Since the vehicle according to the present application is provided with the above-mentioned brake pedal assembly, when the parking mechanism of the vehicle fails, the brake pedal can be depressed first to put the vehicle in a braking state, and then the driving member can stop working, and the driving member no longer outputs driving force to the outside. At this time, the locking member can be moved to the locking position under the action of the reset member, and the locking member will limit the rotation of the brake pedal, and the brake pedal will remain in the braking state, thereby effectively protecting the safety of the driver and passengers.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a brake pedal assembly according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the cooperation between the brake pedal and the locking mechanism according to an embodiment of the present application;

[0020] Figure 3 is an exploded view of a brake pedal assembly according to an embodiment of the present application;

[0021] Figure 4 is a cross-sectional view of a locking mechanism according to an embodiment of the present application (when the locking member is in a locked position);

[0022] Figure 5 yes Figure 4 Cross-sectional view along AA direction;

[0023] Figure 6 yes Figure 4 Cross-sectional view along direction BB;

[0024] Figure 7 is a cross-sectional view of a locking mechanism according to an embodiment of the present application (when the locking member is away from the locking position);

[0025] Figure 8 It is a schematic diagram of the vehicle with the EPB normal and in motion;

[0026] Fig. 9 It is a schematic diagram of the locking member locking the brake pedal when the EPB of the vehicle fails;

[0027] Fig.10 It is a schematic diagram of the vehicle when the brake pedal is released when the locking member is away from the locking position.

[0028] Reference numerals:

[0029] Brake pedal assembly 100,

[0030] Base 110, brake pedal 120, first meshing tooth 121,

[0031] Locking mechanism 130, locking member 131, driving member 132, reset member 133, limiting gear 134, second meshing tooth 134a, mounting seat 135, bottom plate 135a, first sleeve 135b, second sleeve 135c, limiting protrusion 136a, limiting groove 136b, rotating shaft 137, positioning groove 101, mounting groove 102. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and 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 only used to explain the present application, and cannot be understood as limiting the present application.

[0033] Reference below Figure 1-Figure 10 A brake pedal assembly 100 for a vehicle according to an embodiment of the present application is described.

[0034] According to an embodiment of the present application, a brake pedal assembly 100 for a vehicle includes a base 110 , a brake pedal 120 and a locking mechanism 130 .

[0035] The base 110 can be fixed on the floor or on the vehicle body, and the brake pedal 120 can be rotatably arranged on the base 110. When the brake pedal 120 is stepped on downward, braking can be achieved. It can be understood that a return spring can be arranged between the brake pedal 120 and the base 110. When the driver releases the brake pedal 120, the brake pedal 120 can be reset under the action of the return spring, thereby releasing the brake.

[0036] The locking mechanism 130 is arranged on the base 110, and the locking mechanism 130 includes a locking member 131, a driving member 132 and a reset member 133. The driving member 132 and the reset member 133 are both connected to the locking member 131. The locking member 131 can move under the action of the driving member 132 and / or the reset member 133. The locking member 131 has a locking position for limiting the rotation of the brake pedal 120. When the locking member 131 moves to the locking position, the locking member 131 can limit the brake pedal 120, thereby limiting the rotation of the brake pedal 120. When the locking member 131 is away from the locking position, the locking member 131 no longer cooperates with the brake pedal 120, thereby failing to limit the rotation of the brake pedal 120.

[0037] When the parking mechanism of the vehicle is normal, the locking mechanism 130 is not needed to additionally lock the brake pedal 120. The driving member 132 can overcome the reset force of the reset member 133 and output the driving force outward, so that the driving member 132 can drive the locking member 131 away from the locking position, so that the locking member 131 cannot limit the rotation of the brake pedal 120, and the brake pedal 120 can be stepped on without restriction.

[0038] When the parking mechanism of the vehicle fails, the driving member 132 can be stopped. At this time, the driving member 132 no longer outputs driving force to the outside, and the locking member 131 moves to the locking position under the action of the reset force of the reset member 133, so that the locking member 131 can limit the rotation of the brake pedal 120, and the brake pedal 120 is fixed in one position and no longer rotates. Regardless of whether the vehicle has electricity or not, the locking member 131 can be moved to the locking position under the action of the reset member 133 to complete the limitation of the brake pedal 120.

[0039] For example, when the parking mechanism of the vehicle fails, the brake pedal 120 can be stepped on first to put the vehicle in a braking state, and then the driving member 132 can stop working. The driving member 132 no longer outputs driving force to the outside. At this time, the locking member 131 can be moved to the locking position under the action of the reset member 133. The locking member 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 will remain in the braking state.

[0040] According to the brake pedal assembly 100 of the embodiment of the present application, by providing a locking mechanism 130, when the parking mechanism of the vehicle fails, the brake pedal 120 can be depressed first to put the vehicle in a braking state, and then the driving member 132 can stop working. The driving member 132 no longer outputs driving force to the outside. At this time, the locking member 131 can be moved to the locking position under the action of the reset member 133. The locking member 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 will remain in the braking state.

[0041] In some embodiments of the present application, a first meshing tooth 121 is provided on the brake pedal 120, and the locking mechanism 130 also includes: a limiting gear 134, on which a second meshing tooth 134a is provided, and the second meshing tooth 134a cooperates with the first meshing tooth 121 to link the limiting gear 134 with the brake pedal 120.

[0042] When the locking piece 131 moves to the locking position, the locking piece 131 cooperates with the limit gear 134 to limit the rotation of the limit gear 134; when the locking piece 131 cooperates with the limit gear 134, the limit gear 134 cannot rotate, and since the limit gear 134 is linked with the brake pedal 120, the brake pedal 120 cannot rotate either; when the locking piece 131 does not cooperate with the limit gear 134, the limit gear 134 can rotate, so that the brake pedal 120 linked with the limit gear 134 can also rotate.

[0043] Furthermore, one of the locking member 131 and the limiting gear 134 is provided with an external spline, and the other of the locking member 131 and the limiting gear 134 is provided with an internal spline that matches the external spline. When the locking member 131 and the limiting gear 134 are matched, the connection between the two is more secure, ensuring the parking ability of the vehicle when the parking mechanism is damaged, and ensuring the safety of the driver and passengers.

[0044] In some embodiments of the present application, the locking mechanism 130 further includes a mounting seat 135, the mounting seat 135 is fixed on the base 110, and the locking member 131 is slidably disposed on the base 110 to approach or move away from the limiting gear 134. It should be noted that the locking member 131 can only slide, but cannot rotate about its own axis; thus, the locking member 131 can be moved to the locking position, but when cooperating with the limiting gear 134, the locking member 131 cannot rotate, thereby limiting the rotation of the brake pedal 120, so that the brake pedal 120 remains in the braking state.

[0045] Specifically, the mounting base 135 includes: a base plate 135a and a first sleeve 135b, the base plate 135a is fixed on the base 110, one end of the first sleeve 135b is fixedly connected to the base plate 135a, and the other end of the first sleeve 135b extends toward the direction close to the limiting gear 134, and the locking member 131 is slidably arranged on the first sleeve 135b, and the axis of the first sleeve 135b can be orthogonal to the base plate 135a, so that the locking member 131 can move along the axis of the first sleeve 135b.

[0046] Of course, the reset member 133 can be sleeved on the outside of the first sleeve 135b, one end of the reset member 133 is connected to the bottom plate 135a, and the other end of the reset member 133 is connected to the locking member 131. Therefore, one end of the reset member 133 is fixed, and the reset member 133 can always apply a reset force to the locking member 131 to move it toward the locking position. The reset member 133 can be a reset spring. Since the reset member 133 is sleeved on the outside of the first sleeve 135b, the reset member 133 is more stable during the contraction and extension process.

[0047] Furthermore, a limiting member for limiting the rotation of the locking member 131 is provided between the first sleeve 135b and the locking member 131; specifically, the limiting member includes: a limiting protrusion 136a and a limiting groove 136b that cooperate with each other, the limiting protrusion 136a extends along the axial direction of the first sleeve 135b, one of the limiting protrusion 136a and the limiting groove 136b is provided on the outer side wall of the first sleeve 135b, and the other of the limiting protrusion 136a and the limiting groove 136b is provided on the locking member 131. Thus, the locking member 131 can only slide along the axial direction of the first sleeve 135b, but cannot rotate relative to itself. It should be noted that the locking member 131 can be sleeved on the outer side wall of the first sleeve 135b.

[0048] In some embodiments of the present application, the mounting seat 135 also includes a second sleeve 135c, which is disposed on the base plate 135a and located on the outside of the first sleeve 135b. Optionally, the axis of the second sleeve 135c coincides with the axis of the first sleeve 135b. The second sleeve 135c, the first sleeve 135b and the base plate 135a define a positioning groove 101 for accommodating the reset member 133, thereby facilitating the installation of the reset member 133 and the positioning of the reset member 133.

[0049] In some embodiments of the present application, the driving member 132 is configured as an electromagnet, and the outer periphery of the bottom plate 135a radially exceeds the second sleeve 135c to define a mounting groove 102 for accommodating the electromagnet. Thus, the electromagnet is more convenient to fix, and the installation stability of the electromagnet is improved.

[0050] When the electromagnet is energized, it can overcome the resetting force of the resetting member 133 and adsorb the locking member 131 so that the locking member 131 is away from the locking position. After the electromagnet is de-energized, the resetting member 133 drives the locking member 131 to move to the locking position, so that the locking member 131 locks the limit gear 134, restricting the rotation of the limit gear 134, and thus the brake pedal 120 linked with the limit gear 134 cannot rotate.

[0051] In some embodiments of the present application, the locking mechanism 130 further includes a rotating shaft 137, which is fixed on the base 110, passes through the limiting gear 134, the locking member 131 and the first sleeve 135b, and the limiting gear 134 is rotatable relative to the rotating shaft 137. It can be understood that the rotating shaft 137 can be composed of a bolt rod of a bolt, the bolt head of the bolt is stopped at one end of the base 110, and the free end of the bolt rod passes through the base 110 and is threadedly matched with a nut disposed at the other end of the base 110.

[0052] The working process of the brake pedal assembly of the embodiment of the present application is described below.

[0053] like Figure 1As shown, when the ECU (vehicle electronic control unit) detects through the CAN network that the EPB (electronic parking system) functions normally and the vehicle is moving, the ECU sends a command to the control switch to energize the electromagnet. At this time, the power supply transmits electrical energy to the electromagnet. The magnetic attraction force generated by the electromagnet overcomes the reset force of the reset member and drives the locking member 131 away from the locking position. In this state, the parking brake is realized by the EPB.

[0054] like Figure 2 As shown, when the ECU detects an EPB failure through the CAN network (a fault code will be sent to the ECU after detecting an EPB failure) and the vehicle is stationary, the instrument displays the EPB fault information, the driver steps on the brake pedal, triggers the control button (the above-mentioned control button can be arranged at any position within the driver's operational range), and then disconnects the control switch, and the locking member 131 is no longer subjected to the adsorption force of the electromagnet; the locking member 131 cooperates with the limit gear 134 under the action of the reset member, at this time the limit gear 134 and the brake pedal 120 linked to the limit gear 134 cannot rotate, and the brake pedal 120 is maintained at a certain depth, so that a certain hydraulic pressure is maintained inside the caliper, thereby realizing four-wheel parking.

[0055] like Figure 3 As shown, when the ECU detects that the vehicle is stationary through the CAN network, the control button is triggered to turn on the control switch. The electromagnet generates suction after being energized, and the locking member 131 is separated from the limit gear 134 under the action of the electromagnetic force. At this time, the limit gear 134 and the brake pedal 120 are no longer restricted, and the brake pedal 120 returns to the initial position under the reaction force of the pedal return torsion spring and the power assist mechanism, thereby realizing parking release.

[0056] The following is a brief description of the vehicle in the embodiment of the present application.

[0057] The vehicle according to the embodiment of the present application includes the above-mentioned brake pedal assembly 100. Since the vehicle according to the embodiment of the present application is provided with the above-mentioned brake pedal assembly 100, when the parking mechanism of the vehicle fails, the brake pedal 120 can be depressed first to put the vehicle in a braking state, and then the driving member 132 can be stopped from working. The driving member 132 no longer outputs driving force to the outside. At this time, the locking member 131 can be moved to the locking position under the action of the reset member 133. The locking member 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 will remain in the braking state, thereby effectively protecting the safety of the driver and passengers.

[0058] 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 application. 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.

[0059] Although the embodiments of the present application 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 spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A brake pedal assembly for a vehicle, characterized in that: include: Pedestal; a brake pedal rotatably disposed on the base; A locking mechanism, the locking mechanism is arranged on the base and comprises: a locking member and a driving member and a reset member respectively connected to the locking member, the locking member having a locking position for limiting the rotation of the brake pedal; in The driving member is constructed as an electromagnet. When the parking mechanism of the vehicle is normal and the electromagnet is energized, the driving member overcomes the resetting force of the resetting member and drives the locking member away from the locking position. When the parking mechanism of the vehicle fails, after the electromagnet is powered off, the brake pedal is first depressed to put the vehicle in a braking state, and the driving member stops working so that the resetting member drives the locking member to move to the locking position. The locking member restricts the rotation of the brake pedal, and the brake pedal remains in a braking state.

2. The brake pedal assembly for a vehicle according to claim 1, characterized in that: The brake pedal is provided with a first meshing tooth; The locking mechanism also includes: a limit gear, on which a second meshing tooth is arranged, and the second meshing tooth cooperates with the first meshing tooth to link the limit gear with the brake pedal, and when the locking member moves to the locking position, the locking member cooperates with the limit gear to limit the rotation of the limit gear.

3. The brake pedal assembly for a vehicle according to claim 2, characterized in that: One of the position-limiting gear and the locking member is provided with an external spline, and the other of the position-limiting gear and the locking member is provided with an internal spline matched with the external spline.

4. The brake pedal assembly for a vehicle according to claim 2, characterized in that: The locking mechanism further comprises: a mounting seat, the mounting seat is fixed on the base, and the locking member is slidably arranged on the base to approach or move away from the limiting gear.

5. The brake pedal assembly for a vehicle according to claim 4, characterized in that: The mounting seat comprises: A bottom plate, the bottom plate being fixed on the base; A first sleeve, one end of which is fixedly connected to the bottom plate, the other end of which extends toward the direction close to the limit gear, and the locking member is slidably disposed on the first sleeve; The reset member is sleeved on the outside of the first sleeve, one end of the reset member is connected to the bottom plate, and the other end of the reset member is connected to the locking member.

6. The brake pedal assembly for a vehicle according to claim 5, characterized in that: A limiting member for limiting the rotation of the locking member is provided between the first sleeve and the locking member; The limiting member includes: a limiting protrusion and a limiting groove that cooperate with each other, the limiting protrusion extends along the axial direction of the first sleeve, one of the limiting protrusion and the limiting groove is arranged on the outer side wall of the first sleeve, and the other of the limiting protrusion and the limiting groove is arranged on the locking member.

7. The brake pedal assembly for a vehicle according to claim 5, characterized in that: The mounting seat further includes: a second sleeve, which is arranged on the bottom plate and located outside the first sleeve, and the second sleeve, the first sleeve and the bottom plate define a positioning groove for accommodating the reset member.

8. The brake pedal assembly for a vehicle according to claim 7, characterized in that: The driving member is configured as an electromagnet, and the outer periphery of the bottom plate radially extends beyond the second sleeve to define a mounting groove for accommodating the electromagnet.

9. The brake pedal assembly for a vehicle according to claim 5, characterized in that: The locking mechanism further includes: a rotating shaft, which is fixed on the base, passes through the limiting gear, the locking member and the first sleeve, and the limiting gear is rotatable relative to the rotating shaft.

10. A vehicle, characterized in that: A brake pedal assembly comprising any one of claims 1-9.

Images