CN115871616A - Brake pedal assembly for vehicle and vehicle - Google Patents

Abstract

The present application discloses a brake pedal assembly for a vehicle and the vehicle, the brake pedal assembly includes: a base; a brake pedal, the brake pedal is rotatably arranged on the base; A locking mechanism, the locking mechanism is arranged on the base and includes: a locking member, a driving member and a reset member respectively connected to the locking member, the locking member has a function to limit the brake pedal The locking position of the rotation; 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 the parking mechanism of the vehicle When the vehicle mechanism fails, the driving part stops working so that the reset part drives the locking part 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 the braking state through the locking mechanism, and at the same time it will not be affected by the power failure of the vehicle.

Description

Brake pedal assembly for vehicle and vehicle

technical field

The present application relates to the technical field of vehicles, in particular to a brake pedal assembly for a vehicle and the vehicle.

Background technique

In the related technology, the brake pedal mechanism uses the ratchet and pawl to lock the brake pedal under the action of electromagnetic force, and then uses hydraulic pressure to realize parking. This mechanism has the risk of insufficient electromagnetic force or disappearance after the vehicle is parked and turned off. It returns under the action of the spring, thereby causing the parking failure.

Contents of the invention

This application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of this application is to propose a brake pedal assembly for a vehicle, which can keep the brake pedal in the braking state through a locking mechanism when the parking mechanism of the vehicle fails , and will not be affected by vehicle power outages.

The present application also proposes a vehicle having the above-mentioned brake pedal assembly.

The brake pedal assembly for vehicles according to the present application includes: a base; a brake pedal, the brake pedal is rotatably arranged on the base; a locking mechanism, the locking mechanism is arranged on The base 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 that restricts the rotation of the brake pedal; wherein in the vehicle 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; when the parking mechanism of the vehicle fails, the driving member stops working The reset member drives the locking member to move to the locking position.

According to the brake pedal assembly of the embodiment of the present application, by setting the locking mechanism, when the parking mechanism of the vehicle fails, the brake pedal can be stepped on first, so that the vehicle is in the braking state, and then the driving part is stopped to drive The part no longer outputs driving force outwards, and now the locking part can move to the locking position under the action of the reset part, and the locking part will limit the rotation of the brake pedal, and the brake pedal remains in the braking state.

According to an embodiment of the present application, the brake pedal is provided with first meshing teeth; the locking mechanism further includes: a limiting gear, and the limiting gear is provided with second meshing teeth, and the second The meshing teeth cooperate with the first meshing teeth so that the limiting gear is linked with the brake pedal, and when the locking member moves to the locking position, the locking member and the limiting gear The gears cooperate to limit the rotation of the limiting gear.

According to an embodiment of the present application, an external spline is provided on one of the limiting gear and the locking member, and an external spline is provided on the other of the limiting gear and the locking member. Internal splines for spline fits.

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 arranged on the base to approach or move away from The limiting gear.

According to an embodiment of the present application, the mounting seat includes: a base plate, the base plate is fixed on the base; a first sleeve, one end of the first sleeve is fixedly connected with the base plate, and the first sleeve The other end of a sleeve extends towards the 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 first sleeve On the outside, 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.

According to an embodiment of the present application, a limiting member that restricts the rotation of the locking member is provided between the first sleeve and the locking member; the limiting member includes: limiting protrusions that cooperate with each other and a limiting groove, the limiting protrusion extends in the axial direction of the first sleeve, and one of the limiting protrusion and the limiting groove is arranged on the outer side of the first sleeve The other one of the wall, the limiting protrusion and the limiting groove is arranged on the locking member.

According to an embodiment of the present application, the mounting seat further includes: a second sleeve, the second sleeve is arranged on the bottom plate and is located outside the first sleeve, the second sleeve, The first sleeve and the bottom plate define a positioning slot for accommodating the reset member.

According to an embodiment of the present application, the driving member is configured as an electromagnet, and the outer periphery of the bottom plate radially exceeds the second sleeve to define a mounting slot for accommodating the electromagnet.

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

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 fails, the vehicle can first step on the brake pedal to let the vehicle In the braking state, then the driving part is stopped, and the driving part no longer outputs the driving force. At this time, the locking part can move to the locking position under the action of the reset part, and the locking part will limit the rotation of the brake pedal, and the braking The pedal remains in the braking state, thereby effectively protecting the safety of the driver and passengers.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

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, wherein:

FIG. 1 is a schematic diagram of a brake pedal assembly according to an embodiment of the present application;

Fig. 2 is a schematic diagram of cooperation between a brake pedal and a locking mechanism according to an embodiment of the present application;

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

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

Fig. 5 is a sectional view along the A-A direction of Fig. 4;

Fig. 6 is a sectional view along the B-B direction of Fig. 4;

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

Fig. 8 is a schematic diagram of the vehicle in EPB normal and running;

Fig. 9 is a schematic diagram of the brake pedal being locked by the locking member when the EPB of the vehicle fails;

Fig. 10 is a schematic diagram of the vehicle when the brake pedal is parked and released when the locking member is away from the locked position.

Reference signs:

brake pedal assembly 100,

base 110, brake pedal 120, first meshing teeth 121,

Locking mechanism 130, locking member 131, driving member 132, reset member 133, limit gear 134, second meshing teeth 134a, mounting seat 135, bottom plate 135a, first sleeve 135b, second sleeve 135c, limit The protrusion 136a, the limiting groove 136b, the rotating shaft 137, the positioning groove 101, and the installation groove 102.

Detailed ways

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are only for explaining the present application, and should not be construed as limiting the present application.

A brake pedal assembly 100 for a vehicle according to an embodiment of the present application will be described below with reference to FIGS. 1-10 .

The brake pedal assembly 100 for a vehicle according to the embodiment of the present application includes: a base 110 , a brake pedal 120 and a locking mechanism 130 .

The base 110 can be fixed on the floor or fixed on the vehicle body, and the brake pedal 120 is rotatably arranged on the base 110, and when the brake pedal 120 is stepped down, braking can be realized; it can be understood that the brake pedal A return spring may be provided between the 120 and the base 110 , and when the driver releases the brake pedal 120 , the brake pedal 120 can return under the action of the return spring, thereby releasing the brake.

The locking mechanism 130 is arranged on the base 110. The locking mechanism 130 includes a locking member 131, a driving member 132 and a reset member 133. Both the driving member 132 and the reset member 133 are connected to the locking member 131. The locking member 131 can be The driving part 132 and/or the reset part 133 moves under the action, and the locking part 131 has a locking position that limits the rotation of the brake pedal 120. When the locking part 131 moves to the locking position, the locking part 131 can brake The pedal 120 is limited so as to limit the rotation of the brake pedal 120 . When the locking member 131 is away from the locked position, the locking member 131 no longer cooperates with the brake pedal 120 , so that the rotation of the brake pedal 120 cannot be restricted.

When the parking mechanism of the vehicle is normal, there is no need for the locking mechanism 130 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, and then the driving member 132 The locking member 131 can be driven away from the locking position, so that the locking member 131 cannot restrict the rotation of the brake pedal 120, and the brake pedal 120 can be stepped on without restriction.

When the parking mechanism of the vehicle fails, the driving part 132 can be stopped working at this time, and the driving part 132 no longer outputs the driving force outwards, and the locking part 131 moves to the locking position under the reset force of the reset part 133. Position, and then the locking member 131 can limit the rotation of the brake pedal 120, the brake pedal 120 is fixed at a position and no longer rotates, no matter whether the vehicle has power, the locking member 131 can move to the locking position under the action of the reset member 133 position completes the limit of the brake pedal 120 .

For example, when the parking mechanism of the vehicle fails, the brake pedal 120 can be stepped on first to allow the vehicle to be in a braking state, and then the driving part 132 is stopped, and the driving part 132 no longer outputs the driving force outwardly. 131 can move 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 remains in the braking state.

According to the brake pedal assembly 100 of the embodiment of the present application, by setting the locking mechanism 130, when the parking mechanism of the vehicle fails, the brake pedal 120 can be stepped on first, so that the vehicle is in a braking state, and then the driving member 132 stop working, the driving member 132 no longer outputs the driving force outwardly, at this moment, the locking member 131 can move to the locking position under the action of the reset member 133, and the locking member 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 will keep In the state of braking.

In some embodiments of the present application, the brake pedal 120 is provided with a first meshing tooth 121, and the locking mechanism 130 further includes: a limit gear 134, and a second meshing tooth 134a is provided on the limit gear 134, and the second meshing The tooth 134 a cooperates with the first meshing tooth 121 to make the limiting gear 134 and the brake pedal 120 interlock.

When the locking member 131 moves to the locking position, the locking member 131 cooperates with the limiting gear 134 to limit the rotation of the limiting gear 134; when the locking member 131 cooperates with the limiting gear 134, the limiting gear 134 cannot rotate , because the limit gear 134 is linked with the brake pedal 120, so the brake pedal 120 can not rotate; The coupled brake pedal 120 can also be rotated.

Further, 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 cooperating with the external spline. When the locking member 131 cooperates with the limit gear 134, the connection between the two is more firm, which ensures the parking capability when the parking mechanism of the vehicle is damaged, and ensures the safety of the drivers and passengers.

In some embodiments of the present application, the locking mechanism 130 further includes a mounting base 135, the mounting base 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 limit gear 134, the locking member 131 cannot rotate, thereby restricting the rotation of the brake pedal 120, so that the brake pedal 120 remains in the braking state.

Specifically, the mounting seat 135 includes: a bottom plate 135a and a first sleeve 135b, the bottom plate 135a is fixed on the base 110, one end of the first sleeve 135b is fixedly connected to the bottom plate 135a, and the other end of the first sleeve 135b faces toward the limit The direction of the position gear 134 extends, and the locking member 131 is slidably arranged on the first sleeve 135b. The axis of the first sleeve 135b can be perpendicular to the bottom plate 135a, so the locking member 131 can move along the first sleeve 135b. axis moves.

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 exert a reset force on the locking member 131 to move toward the locking position. The return member 133 may be a return spring, and since the return member 133 is sheathed on the outside of the first sleeve 135b, the return member 133 is more stable during contraction and stretching.

Further, a limiting member that restricts 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 limit protrusion 136a extends along the axial direction of the first sleeve 135b, one of the limit protrusion 136a and the limit groove 136b is arranged on the outer side wall of the first sleeve 135b, the limit protrusion 136a and the limit The other one of the grooves 136b is disposed 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 wall of the first sleeve 135b.

In some embodiments of the present application, the mount 135 further includes a second sleeve 135c, the second sleeve 135c is arranged on the bottom plate 135a and is located outside the first sleeve 135b, optionally, the second sleeve 135c The axis coincides with the axis of the first sleeve 135b, and the second sleeve 135c, the first sleeve 135b and the bottom plate 135a define a positioning groove 101 for accommodating the reset member 133, thereby facilitating installation of the reset member 133 and positioning of the reset member 133 .

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 slot 102 for accommodating the electromagnet. Therefore, the fixing of the electromagnet is more convenient, and the installation stability of the electromagnet is improved.

When the electromagnet is energized, it can overcome the reset force of the reset member 133 and absorb the locking member 131 so that the locking member 131 is away from the locking position. After the electromagnet is powered off, the reset member 133 drives the locking member 131 to move to the locking position. Therefore, the locking member 131 locks the limit gear 134 to limit the rotation of the limit gear 134, and the brake pedal 120 linked with the limit gear 134 cannot rotate.

In some embodiments of the present application, the locking mechanism 130 further includes a rotating shaft 137, which is fixed on the base 110, and the rotating shaft 137 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 formed by a bolt shank, the bolt head of the bolt stops against one end of the base 110, and the free end of the bolt shank passes through the base 110 and is arranged on the other end of the base 110. The nut thread fits.

The following describes the working process of the brake pedal assembly of the embodiment of the present application.

As shown in Figure 1, when the ECU (vehicle electronic control unit) detects through the CAN network that the EPB (electronic parking system) is functioning normally and the vehicle is running, the ECU sends an instruction to the control switch to energize the electromagnet. The iron transmits electric energy, and 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 locked position. In this state, the parking brake is realized by the EPB.

As shown in Figure 2, when the ECU detects the failure of the EPB through the CAN network (the fault code will be sent to the ECU after the detection of the failure of the EPB) and the vehicle is stationary, the instrument displays the EPB fault information, the driver depresses the brake pedal, and triggers the control button (Above-mentioned control button can be arranged in the arbitrary position of driver's operable range), and then control switch is disconnected, and locking member 131 is no longer subjected to the adsorption force of electromagnet; The gear 134 cooperates. At this time, the limit gear 134 and the brake pedal 120 linked with the limit gear 134 cannot rotate, and the brake pedal 120 is maintained at a certain depth to maintain a certain hydraulic pressure inside the caliper, thereby realizing four-wheel parking. .

As shown in Figure 3, when the ECU detects that the vehicle is stationary through the CAN network, the control button is triggered, the control switch is turned on, and the electromagnet generates suction force after being energized, and the locking member 131 is separated from the limit gear 134 under the action of electromagnetic force, Now 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 booster mechanism to realize parking release.

The vehicle of the embodiment of the present application is briefly described below.

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 fails, the vehicle can first step on the The brake pedal 120 allows the vehicle to be in a braking state, and then the driving member 132 is stopped, and the driving member 132 no longer outputs the driving force outwardly. At this time, the locking member 131 can move to the locking position under the action of the reset member 133, and the locking The tightening 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 drivers and passengers.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do 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.

Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the application is defined by the claims and their equivalents.

Claims (10)

1. A brake pedal assembly for a vehicle, comprising:

a base;

the brake pedal is rotatably arranged on the base;

a locking mechanism disposed on the base and comprising: the brake pedal device comprises a locking member, a driving member and a resetting member, wherein the driving member and the resetting member are respectively connected with the locking member; wherein

When the parking mechanism of vehicle is normal, the driving piece overcomes the power that resets of piece and drive the retaining member is kept away from locking position when the parking mechanism of vehicle became invalid, the driving piece stop work is so that the drive that resets the retaining member removes to locking position.

2. The brake pedal assembly for a vehicle of claim 1 wherein the brake pedal is provided with a first engagement tooth;

the locking mechanism further comprises: the limiting gear is provided with second meshing teeth, the second meshing teeth are matched with the first meshing teeth to enable the limiting gear to be in linkage with the brake pedal, the locking piece moves to the locking position, and the locking piece is matched with the limiting gear to limit the rotation of the limiting gear.

3. The brake pedal assembly for a vehicle of claim 2, wherein one of the limit gear and the locker is provided with an external spline, and the other of the limit gear and the locker is provided with an internal spline that is engaged with the external spline.

4. The brake pedal assembly for a vehicle of claim 2 wherein the latch mechanism further comprises: the mounting base is fixed on the base, and the locking piece can be slidably arranged on the base to be close to or far away from the limiting gear.

5. A brake pedal assembly for a vehicle according to claim 4, wherein the mounting seat includes:

the bottom plate is fixed on the base;

one end of the first sleeve is fixedly connected with the bottom plate, the other end of the first sleeve extends towards the direction close to the limiting gear, and the locking piece is slidably arranged on the first sleeve; wherein

The piece cover that resets is established first telescopic outside just the one end that resets with the bottom plate links to each other, the other end that resets with the retaining member links to each other.

6. The brake pedal assembly for a vehicle of claim 5, wherein a stopper member that restricts rotation of the lock member is provided between the first sleeve and the lock member;

the stopper includes: spacing arch and spacing recess that cooperate each other, spacing arch is followed first telescopic axial extension, spacing arch with one of spacing recess sets up first telescopic lateral wall, spacing arch with another setting in the spacing recess is in on the retaining member.

7. The brake pedal assembly for a vehicle of claim 5 wherein the mount further includes: the second sleeve is arranged on the bottom plate and located on the outer side of the first sleeve, and the second sleeve, the first sleeve and the bottom plate define a positioning groove for accommodating the resetting piece.

8. The brake pedal assembly for a vehicle of claim 7 wherein the actuating member is configured as an electromagnet and the outer periphery of the base plate extends radially beyond the second sleeve to define a mounting slot that receives the electromagnet.

9. The brake pedal assembly for a vehicle of claim 5 wherein the locking mechanism further comprises: the pivot, the pivot is fixed on the base, the pivot passes limit gear retaining member with first sleeve, limit gear for the pivot is rotatable.

10. A vehicle comprising a brake pedal assembly as defined in any one of claims 1 to 9.

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