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

Abstract

The application discloses a brake pedal assembly and vehicle for vehicle, brake pedal assembly includes: a base; the brake pedal is rotatably arranged on the base; a locking mechanism disposed on the base and comprising: the brake pedal comprises a locking part, a driving part and a resetting part, wherein the driving part and the resetting part are respectively connected with the locking part; wherein when the parking mechanism of vehicle is normal, the driving piece is overcome reset the power that resets and is driven 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. According to the application, when the parking mechanism of the vehicle fails, the brake pedal assembly can keep the brake pedal in a braking state through the locking mechanism, and meanwhile, the brake pedal assembly cannot be influenced by power failure of the vehicle.

Description

Brake pedal assembly for vehicle and vehicle

Technical Field

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

Background

Among the correlation technique, brake pedal mechanism utilizes ratchet and pawl to lock brake pedal and then utilize hydraulic pressure to realize the parking at the effect of electromagnetic force, and this mechanism has electromagnetic force not enough or disappearance risk after the outage is put out in the parking of vehicle, and the pawl returns under the effect of spring to lead to the parking to become invalid.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. To this end, an object of the present application is to provide a brake pedal assembly for a vehicle, which can maintain a brake pedal in a braking state by a locking mechanism when a parking mechanism of the vehicle fails, while being unaffected by a power-off of the vehicle.

The application further provides a vehicle with the brake pedal assembly.

A brake pedal assembly for a vehicle according to the present application includes: 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; when the parking mechanism of vehicle is normal, the driving piece overcomes the reset force of the reset piece and drives the locking piece to be away from the locking position, when the parking mechanism of vehicle is out of work, the driving piece stops working to enable the reset piece to drive the locking piece to move to the locking position.

According to the brake pedal assembly of this application embodiment, through setting up locking mechanism for when the parking mechanism of vehicle became invalid, can step on brake pedal earlier, let the vehicle be in brake state, then make driving piece stop work, driving piece no longer outwards exports drive power, the retaining member can remove to the locking position in the effect that resets this moment, and the retaining member will restrict brake pedal and rotate, and brake pedal keeps the state at the brake.

According to one embodiment of the application, the brake pedal is provided with a first meshing 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.

According to one embodiment of the application, an external spline is arranged on one of the limiting gear and the retaining member, and an internal spline matched with the external spline is arranged on the other one of the limiting gear and the retaining member.

According to an embodiment of the application, the locking mechanism further comprises: the mounting seat 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.

According to an embodiment of the application, the mount comprises: 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 it establishes to reset the piece the 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.

According to one embodiment of the application, a limiting piece for limiting the rotation of the locking piece is arranged between the first sleeve and the locking piece; 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.

According to an embodiment of the application, the mount further comprises: 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.

According to one embodiment of the application, the drive member is configured as an electromagnet, and the outer periphery of the base plate extends radially beyond the second sleeve to define a mounting groove for receiving the electromagnet.

According to an embodiment of the application, 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.

According to the vehicle including the brake pedal assembly, the vehicle is provided with the brake pedal assembly, so that the vehicle can be firstly treaded on the brake pedal when a parking mechanism fails, the vehicle is in a braking state, then the driving part stops working, the driving part does not output driving force outwards any more, the locking part can be moved to a locking position under the action of the resetting part, the locking part limits the brake pedal to rotate, the brake pedal is kept in a braking state, and the safety of drivers and passengers is effectively protected.

Additional aspects and advantages of the present 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 present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

FIG. 2 is a schematic illustration of a brake pedal engaged with a locking mechanism according to an embodiment of the present application;

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

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

FIG. 5 isbase:Sub>A cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

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

FIG. 8 is a schematic view of the vehicle during normal EPB and driving;

FIG. 9 is a schematic view of the locking member locking the brake pedal when the EPB of the vehicle is disabled;

FIG. 10 is a schematic view of the vehicle with the brake pedal park released with the retaining member away from the retaining position.

Reference numerals:

the brake pedal assembly 100 is provided with a brake pedal,

the base 110, the brake pedal 120, the first engagement teeth 121,

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

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

A brake pedal assembly 100 for a vehicle according to an embodiment of the present application is described below with reference to fig. 1 to 10.

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

The base 110 can be fixed on the floor or fixed on the vehicle body, the brake pedal 120 can be rotatably arranged on the base 110, and when the brake pedal 120 is stepped downwards, braking can be realized; it is understood that a return spring may be disposed between the brake pedal 120 and the base 110, and when the driver releases the brake pedal 120, the brake pedal 120 may be returned by the return spring, so as to release the brake.

The locking mechanism 130 is arranged on the base 110, the locking mechanism 130 comprises a locking member 131, a driving member 132 and a resetting member 133, the driving member 132 and the resetting member 133 are both connected with the locking member 131, the locking member 131 can move under the action of the driving member 132 and/or the resetting 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 rotation of the brake pedal 120 so as to limit the rotation of the brake pedal 120, and when the locking member 131 is far away from the locking position, the locking member 131 is not matched with the brake pedal 120 so as not to limit the rotation of the brake pedal 120.

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 driving force outwards, and then the driving member 132 can drive the locking member 131 to be far 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 without limitation.

When the parking mechanism of vehicle became invalid, can make driving piece 132 stop work this moment, driving piece 132 was no longer outwards output drive power this moment, retaining member 131 removed to locking position under the effect of the restoring force of piece 133 that resets, and then retaining member 131 can restrict brake pedal 120 and rotate, and brake pedal 120 fixes and is no longer rotated in a position, and no matter whether the vehicle has the electricity, retaining member 131 can all remove to locking position under the effect of piece 133 that resets and accomplish the spacing to brake pedal 120.

For example, when the parking mechanism of the vehicle fails, the brake pedal 120 may be firstly depressed to make the vehicle in a braking state, and then the driving element 132 stops working, the driving element 132 does not output driving force outwards, at this time, the locking element 131 may be moved to the locking position under the action of the resetting element 133, the locking element 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 is kept in the braking state.

According to the brake pedal assembly 100 of the embodiment of the application, by providing the locking mechanism 130, when the parking mechanism of the vehicle fails, the brake pedal 120 can be firstly pressed to make the vehicle in a braking state, then the driving element 132 stops working, the driving element 132 does not output driving force outwards any more, at this time, the locking element 131 can move to a locking position under the action of the resetting element 133, the locking element 131 will limit the rotation of the brake pedal 120, and the brake pedal 120 is kept in the braking state.

In some embodiments of the present application, the brake pedal 120 is provided with a first engaging tooth 121, and the locking mechanism 130 further includes: the limiting gear 134 is provided with a second meshing tooth 134a, and the second meshing tooth 134a is matched with the first meshing tooth 121 so that the limiting gear 134 is linked with the brake pedal 120.

When the locker 131 is moved to the locking position, the locker 131 is engaged with the limiting gear 134 to limit the rotation of the limiting gear 134; when the locking member 131 is engaged with the limit gear 134, the limit gear 134 cannot rotate, and the brake pedal 120 cannot rotate because the limit gear 134 is linked with the brake pedal 120; when the locker 131 is not engaged with the limit gear 134, the limit gear 134 may be rotated, so that the brake pedal 120 interlocked with the limit gear 134 can also be rotated.

Further, one of the locker 131 and the limiting gear 134 is provided with an external spline, and the other of the locker 131 and the limiting gear 134 is provided with an internal spline engaged with the external spline. When retaining member 131 and limit gear 134 cooperate, the connection of the two is more firm, has ensured the parking ability when the parking mechanism of vehicle damages, has ensured driver and crew's security.

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 be close to or far from the limit gear 134. It should be noted that the locking member 131 can only slide, but cannot rotate about its own axis; thus, the locker 131 may be moved to the locking position, but the locker 131 cannot be rotated while being engaged with the limit gear 134, thereby restricting the rotation of the brake pedal 120 such that the brake pedal 120 is maintained in the braking state.

Specifically, the mount 135 includes: the locking device comprises a base plate 135a and a first sleeve 135b, wherein the base plate 135a is fixed on the base 110, one end of the first sleeve 135b is fixedly connected with the base plate 135a, the other end of the first sleeve 135b extends towards the direction close to the limiting gear 134, 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 135 b.

Of course, the restoring member 133 can be sleeved outside the first sleeve 135b, one end of the restoring member 133 is connected to the bottom plate 135a, and the other end of the restoring member 133 is connected to the locking member 131. Accordingly, one end of the restoring member 133 is fixed, and the restoring member 133 may constantly apply a restoring force to the locker 131 to move it toward the locking position. The restoring member 133 may be a restoring spring, and since the restoring member 133 is sleeved at the outer side of the first sleeve 135b, the restoring member 133 is more stable in the process of contracting and stretching.

Further, a limiting member for limiting the rotation of the locking member 131 is arranged between the first sleeve 135b and the locking member 131; specifically, the stopper includes: and a stopping protrusion 136a and a stopping groove 136b which are engaged with each other, the stopping protrusion 136a extending in the axial direction of the first sleeve 135b, one of the stopping protrusion 136a and the stopping groove 136b being provided at an outer side wall of the first sleeve 135b, and the other of the stopping protrusion 136a and the stopping groove 136b being provided at the locking member 131. Therefore, the locking member 131 can only slide along the axial direction of the first sleeve 135b, but cannot rotate relative to itself, and it should be noted that the locking member 131 can be sleeved on the outer side wall of the first sleeve 135 b.

In some embodiments of the present application, the mounting base 135 further includes a second sleeve 135c, the second sleeve 135c is disposed on the bottom plate 135a and located outside the first sleeve 135b, optionally, an axis of the second sleeve 135c coincides with an axis of the first sleeve 135b, and the second sleeve 135c, the first sleeve 135b and the bottom plate 135a define a positioning slot 101 for accommodating the reset piece 133, thereby facilitating the installation of the reset piece 133 and the positioning of the reset piece 133.

In some embodiments of the present application, the driving member 132 is configured as an electromagnet, and the outer periphery of the base plate 135a extends radially beyond the second sleeve 135c to define the mounting slot 102 that receives the electromagnet. From this, the electro-magnet is fixed more convenient, has promoted the installation stability of electro-magnet.

When the electromagnet is powered on, the reset force of the reset piece 133 can be overcome, the locking piece 131 is adsorbed to enable the locking piece 131 to be far away from the locking position, and after the electromagnet is powered off, the reset piece 133 drives the locking piece 131 to move to the locking position, so that the locking piece 131 locks the limiting gear 134, the limiting gear 134 is limited to rotate, and the brake pedal 120 linked with the limiting gear 134 cannot rotate.

In some embodiments of the present application, the locking mechanism 130 further includes a rotating shaft 137, the rotating shaft 137 is fixed on the base 110, the rotating shaft 137 passes through the limit gear 134, the locking member 131 and the first sleeve 135b, and the limit gear 134 is rotatable relative to the rotating shaft 137. It will be appreciated that the shaft 137 may be formed by a shank of a bolt, the head of which rests against one end of the base 110, the free end of the shank of the bolt passing through said base 110 and being in threaded engagement with a nut provided at the other end of the base 110.

The operation of the brake pedal assembly of the embodiment of the present application will be described.

As shown in fig. 1, when the ECU (vehicle electronic control unit) detects that the EPB (electronic parking system) functions normally and the vehicle runs through the CAN network, the ECU sends an instruction of energizing the electromagnet to the control switch, at this time, the power supply transmits electric 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 to be away from the locking position, and the EPB realizes parking braking in this state.

As shown in fig. 2, when the ECU detects EPB failure through the CAN network (a fault code is sent to the ECU after detecting EPB failure) and the vehicle is stationary, the meter displays EPB fault information, the driver depresses the brake pedal to trigger a control button (the control button CAN be arranged at any position in the driver operable range), and then the control switch is turned off, and the locking member 131 is no longer subjected to the adsorption force of the electromagnet; the locking member 131 is matched with the limiting gear 134 under the action of the resetting member, at the moment, the limiting gear 134 and the brake pedal 120 linked with the limiting gear 134 cannot rotate, and the brake pedal 120 is maintained at a position with a certain depth, so that certain hydraulic pressure is kept in the caliper, and four-wheel parking is realized.

As shown in fig. 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, the electromagnet is energized to generate attraction, the locking member 131 is separated from the limiting gear 134 under the action of the electromagnetic force, at this time, the limiting gear 134 and the brake pedal 120 are not limited any more, and the brake pedal 120 is restored to the initial position under the reaction force of the pedal return torsion spring and the boosting mechanism, thereby realizing parking release.

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

According to the embodiment of the application, the vehicle comprises the brake pedal assembly 100, and due to the fact that the vehicle according to the embodiment of the application is provided with the brake pedal assembly 100, when the parking mechanism of the vehicle fails, the brake pedal 120 can be firstly pressed to enable the vehicle to be in a braking state, then the driving element 132 stops working, the driving element 132 does not output driving force outwards any more, at the moment, the locking element 131 can move to a locking position under the action of the resetting element 133, the locking element 131 limits the rotation of the brake pedal 120, the brake pedal 120 is kept in the braking state, and therefore the safety of drivers and passengers is effectively protected.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which 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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