CN213594253U - Pedal assembly, braking system and vehicle - Google Patents

Abstract

The application discloses a pedal assembly, a brake system and a vehicle, wherein the pedal assembly comprises a pedal rod and a buffer piece; the pedal rod is configured to be capable of swinging around the end of one end thereof; the buffer has a first central axis, is connected to the pedal rod and is configured to: the first central axis is movable between a first position and a second position as the pedal lever oscillates; the first central axis is far away from the push rod at the first position, the first central axis is close to the push rod at the second position, the buffer piece can deform to enable the push rod to keep static in the process that the first central axis moves from the first position to the second position, and the buffer piece can be enabled to push the push rod to move when the first central axis moves from the second position to the direction departing from the first position. The pedal assembly can delay the working time of a braking system, and effectively improves the energy recovery efficiency of a vehicle.

Description

Pedal assembly, braking system and vehicle

Technical Field

The application relates to the technical field of vehicle braking, in particular to a pedal assembly, a braking system and a vehicle.

Background

In a braking system of a vehicle, a pedal assembly is generally used to control the operation of a vacuum booster, and when the pedal is stepped on, the pedal directly drives a push rod of the vacuum booster to move so as to drive the vacuum booster to operate. Although the prior art brake systems respond very quickly, this rapid response is not conducive to recovering the kinetic energy of the vehicle, so that the energy consumption of the vehicle, especially of an electric vehicle, may therefore lose driving range too quickly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem that prior art exists is in order to overcome to the purpose of this application, provides a footboard assembly, braking system and vehicle, and this footboard assembly can postpone braking system's operating time, effectively improves the energy recuperation efficiency of vehicle.

In order to achieve the above object, the present application provides a pedal assembly for pushing a push rod of a vacuum booster pump, the pedal assembly including a pedal rod and a buffer member; the pedal rod is configured to be swingable about an end portion of one end thereof; the bumper element has a first central axis, the bumper element is connected to the pedal rod and configured to: the first central axis is movable between a first position and a second position as the pedal lever oscillates; the first central axis is far away from the push rod at the first position, the first central axis is close to the push rod at the second position, the buffer piece can be deformed to enable the push rod to keep static in the process that the first central axis moves from the first position to the second position, and the buffer piece can be enabled to push the push rod to move when the first central axis moves from the second position to the direction far away from the first position.

Optionally, the bolster includes central barrel and cladding the bush of central barrel, the footboard assembly includes the link, the link is connected the footboard pole with central barrel, wherein, the central line of central barrel is first the central axis, the bush configuration can produce deformation.

Optionally, the bushing is of a rubber structure.

Optionally, a first hollow-out portion is arranged on one side, facing the vacuum booster pump, of the bushing.

Optionally, a second hollow-out portion is arranged on one side, away from the vacuum booster pump, of the bushing.

Optionally, a groove is formed in one side, facing the vacuum booster pump, of the pedal rod, the buffer piece is arranged in the groove, two ends of the connecting frame are connected to two opposite side edges of the groove respectively, and the central cylinder is connected to the middle of the connecting frame.

Through the technical scheme, when the pedal is stepped, the pedal rod can rotate around one end of the pedal rod, and in the process of rotating the pedal rod, the first central axis of the buffer is movable from the first position to the second position, since during the movement of the first central axis from the first position to the second position, the buffer member can be deformed to keep the push rod of the vacuum booster pump still, therefore, the push rod does not move during the movement of the first central axis from the first position to the second position, therefore, the vacuum booster pump does not work, and a section of idle stroke is provided for the pedal in the process that the first central axis moves from the first position to the second position, so that the working time of a brake system is delayed, and the energy recovery efficiency of the vehicle is effectively improved.

The application also provides a braking system, the braking system includes vacuum booster pump and foretell footboard assembly.

The application still provides a braking system, braking system includes vacuum booster pump and foretell footboard assembly, the one end of vacuum booster pump's push rod is equipped with the mounting hole, the bolster sets up among the mounting hole and the bush with the inner wall laminating of mounting hole.

Optionally, a groove is formed in one side, facing the vacuum booster pump, of the pedal rod, a groove is formed in one end, provided with the mounting through hole, of the push rod, the buffer piece is arranged in the groove, the two ends of the connecting frame are connected to the two opposite side edges of the groove respectively, and the central cylinder is connected to the middle of the connecting frame.

The application also provides a vehicle, which comprises a power assembly, a sensor and the brake system; wherein the sensor is configured to: the powertrain can be controlled to provide braking force to the vehicle during movement of the first central axis of the cushioning member of the pedal assembly from the first position to the second position.

The advantages of the brake system, the vehicle and the pedal assembly are the same compared with the prior art, and are not described in detail herein.

Additional features and advantages of the present application will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic illustration of a pedal assembly of the present application coupled to a push rod;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1, with the attachment brackets not shown;

FIG. 3 is a schematic view of a pedal rod of the pedal assembly of the present application;

FIG. 4 is a perspective view of a bumper of the pedal assembly of the present application;

FIG. 5 is an elevation view of a cushioning member of the pedal assembly of the present application;

FIG. 6 is a top view of a cushioning member of the pedal assembly of the present application;

FIG. 7 is a schematic view of an embodiment of the braking system of the present application;

FIG. 8 is a schematic view of a push rod of the braking system of the present application;

FIG. 9 is a schematic view of the braking system of the present application showing the state of the pedal lever in a first position and a second position.

Description of the reference numerals

110-pedal rod, 111-groove, 120-central cylinder, 130-bushing, 131-first hollow part, 132-second hollow part, 140-connecting frame, 200-vacuum booster pump, 210-push rod, 211-installation through hole

Detailed Description

The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application.

As shown in fig. 1 to 9, the pedal assembly for pushing the push rod 210 of the vacuum booster pump 200 of the present application includes a pedal rod 110 and a buffer member; the pedal rod 110 is configured to be swingable about an end portion of one end thereof; the buffer has a first central axis, is connected to the pedal rod 110 and is configured to: the first central axis is movable between a first position and a second position as the pedal lever 110 oscillates; the first central axis is far away from the push rod 210 at the first position, the first central axis is close to the push rod 210 at the second position, and the buffer member can deform to keep the push rod 210 stationary in the process that the first central axis moves from the first position to the second position, and the buffer member can push the push rod 210 to move when the first central axis moves from the second position to the direction far away from the first position.

In the present application, as shown in fig. 9, when the pedal is stepped on, the pedal rod 110 rotates around one end thereof, and the first central axis of the buffer member can move from the first position to the second position during the rotation of the pedal rod 110 (the solid line pedal rod 110 indicates that the first central axis of the buffer member is in the first position, and the dotted line pedal rod 110 indicates that the first central axis of the buffer member is in the second position), because the buffer member can deform to keep the push rod 210 of the vacuum assist pump 200 stationary during the movement of the first central axis from the first position to the second position, the push rod 210 does not move during the movement of the first central axis from the first position to the second position, so that the vacuum assist pump 200 does not operate, and an idle stroke is provided to the pedal during the movement of the first central axis from the first position to the second position, so that the operation time of the brake system is delayed, the energy recovery efficiency of the vehicle is effectively improved.

It should be understood that the buffer member may be provided in various forms, for example, the buffer member may have a spring structure, the first central axis is the midline of the spring structure, when the spring structure is in a natural state, the midline of the spring structure is at a first position, in this state, the push rod 210 is not pushed and therefore does not move, and when the spring structure is in a fully compressed state, the centerline of the spring structure is in the second position, in this state, if the spring structure continues to move toward the push rod 210, the push rod 210 is pushed to move, so that the vacuum booster pump 200 operates, in the process of changing the stress of the spring structure from the natural state to the compressed state, most of the stress of the spring structure is absorbed by the deformation of the spring structure, and a small part of the remaining stress cannot push the push rod 210 to move, thereby allowing the push rod 210 to remain stationary, providing an idle stroke to the pedal rod 110.

In one embodiment of the present application, as shown in fig. 4 to 6, the buffer member includes a central cylinder 120 and a bushing 130 covering the central cylinder 120, the pedal assembly includes a connecting bracket 140, the connecting bracket 140 connects the pedal rod 110 and the central cylinder 120, wherein a center line of the central cylinder 120 is the first center axis, and the bushing 130 is configured to be deformable. In the present embodiment, the principle of providing a lost motion to the pedal rod 110 by using the deformation of the bushing 130 is the same as that of the above-described spring structure, but the advantages of using the center cylinder 120 and the bushing 130 are: because the cushioning member does not do linear motion but do curvilinear motion when the pedal rod 110 swings, in order to reduce the friction generated by the contact of the cushioning member and the push rod 210, the bushing 130 and the push rod 210 are in rolling contact rather than sliding contact by virtue of the characteristic that the central cylinder 120 can rotate around the first central axis, so that the friction between the cushioning member and the push rod 210 is greatly reduced, the abrasion is reduced, and the service life is prolonged.

It should be understood that the bushing 130 may be made of various materials as long as it can deform during the movement of the first central axis of the buffer member from the first position to the second position, for example, the bushing 130 may be made of a sponge material, and in one embodiment of the present application, the bushing 130 is made of a rubber material in order to ensure that the rigidity and flexibility of the bushing 130 are moderate.

In order to allow greater deformation of the bushing 130 to effectively provide a stroke to the pedal rod 110, in an embodiment of the present application, a first hollow portion 131 is disposed on a side of the bushing 130 facing the vacuum booster pump 200, and when the bushing 130 contacts the push rod 210 and is continuously applied with a force in a direction toward the push rod 210, the side of the bushing 130 facing the vacuum booster pump 200 is deformed by being recessed toward the first hollow portion 131, so that a stroke can be more effectively provided to the pedal rod 110.

Further, in an embodiment of the present application, a second hollow portion 132 is disposed on a side of the bushing 130 away from the vacuum booster pump 200, the second hollow portion 132 and the first hollow portion 131 may be symmetrically disposed relative to the first central axis, and the purpose of adjusting the rigidity and flexibility of the bushing 130 is achieved by adjusting the size of the second hollow portion 132.

It should be understood that the assembled formation of the pedal rod 110 and the cushioning member can be designed in a variety of ways, for example, the cushioning member can be located entirely outside the pedal rod 110. In one embodiment of the present application, as shown in fig. 3, a groove 111 is formed at one side of the pedal rod 110 facing the vacuum booster pump 200, a buffer member is disposed in the groove 111, both ends of the link frame 140 are respectively connected to opposite side edges of the groove 111, and the central cylinder 120 is connected to a middle portion of the link frame 140. The advantage of this arrangement is that, because the buffer member can be completely disposed in the groove 111, the installation space of the pedal assembly can be greatly saved, and the size of the brake system can be further reduced, and the applicability can be improved.

The present application further provides a braking system comprising a vacuum booster pump 200 and the pedal assembly described above.

It should be understood that different forms of braking systems may be formed in accordance with different embodiments of the pedal assembly of the present application.

For example, in an embodiment of the present application, an end of the push rod 210 of the vacuum booster pump 200 of the brake system near the pedal assembly may have a certain distance from the buffer, that is, when the first central axis of the buffer of the pedal assembly is in the first position, the buffer and the push rod 210 have a distance rather than a contact state, during the process that the first central axis moves from the first position to the second position, the buffer first moves towards the push rod 210, then contacts the push rod 210, and finally deforms until the first central axis reaches the second position, during the process that the buffer moves, the buffer cannot push the push rod 210 to move all the time, so that the push rod 210 is still all the time.

In another embodiment of the present application, as shown in fig. 1, 2, 7 and 8, there is no space between the push rod 210 and the buffer, specifically, one end of the push rod 210 may be provided with a mounting through hole 211, the buffer is disposed in the mounting through hole 211 and the bushing 130 is attached to the inner wall of the mounting through hole 211, in this embodiment, when the first central axis moves from the first position to the second position, once the central line of the central cylinder 120 (i.e., the first central axis) moves from the first position, the bushing 130 of the buffer is deformed until the central line of the central cylinder 120 reaches the second position, the push rod 210 is kept still due to the deformation of the bushing 130. In this embodiment, since the bushing 130 is always in contact with the mounting through hole 211 of the push rod 210, the user feels a good feedback feeling throughout the entire pedal stepping process, and the driving experience is good.

In the above embodiment, since there may be no gap between the push rod 210 and the buffer member, when the pedal lever 110 adopts the above structure to save the installation space, the push rod 210 can be more compactly connected with the pedal lever 110, that is: one end of the push rod 210 provided with the mounting through hole 211 extends into the groove 111 of the pedal rod 110 so that the buffer is disposed in the groove 111, two ends of the connecting frame 140 are respectively connected to opposite side edges of the groove 111, the central cylinder 120 is connected to the middle of the connecting frame 140, and the push rod 210 and the pedal rod 110 are hinged together through the buffer.

The application also provides a vehicle, which comprises a power assembly, a sensor and the braking system, wherein the power assembly is connected with the sensor; wherein the sensor is configured to: the powertrain can be controlled to provide braking force to the vehicle during movement of the first central axis of the bumper of the pedal assembly from the first position to the second position.

When a user steps on the pedal, the sensor monitors the moving state of the first central axis of the buffer part, and when the first central axis starts to move from the first position, the sensor controls the power assembly of the vehicle to provide braking force for the vehicle, so that more energy recovery is realized. Thereafter, only the powertrain provides braking force to the vehicle at all times during movement of the first center axis to the second position. When the first central axis moves from the second position to the vacuum pump 200, the buffer member can push the push rod 210 to move, so that the vacuum pump 200 works, and the vehicle is braked by the power assembly and the brake system.

The vehicle of this application can increase the idle stroke of footboard through adopting foretell braking system, postpones the intervention time of stopper, increases the time of simply realizing the braking through the power assembly, improves energy recuperation efficiency, and the energy saving can especially increase the continuation of the journey mileage to the electric motor car.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited thereto. Within the scope of the technical idea of the present application, various simple modifications may be made to the technical solution of the present application, and in order to avoid unnecessary repetition, various possible combinations are not separately described in the present application. These simple modifications and combinations should also be considered as disclosed in the present application, and all fall within the scope of protection of the present application.

Claims (10)

1. A pedal assembly for pushing a push rod (210) of a vacuum booster pump (200), characterized in that the pedal assembly comprises a pedal rod (110) and a buffer;

the pedal rod (110) is configured to be swingable about an end portion of one end thereof;

the bumper element has a first central axis, the bumper element is connected to the pedal rod (110) and configured to: the first central axis is movable between a first position and a second position upon oscillation of the pedal lever (110);

wherein, in the first position, the first central axis is far away from the push rod (210), in the second position, the first central axis is close to the push rod (210), in the process that the first central axis moves from the first position to the second position, the buffer can generate deformation to enable the push rod (210) to keep still, and in the process that the first central axis moves from the second position to the direction far away from the first position, the buffer can enable the buffer to push the push rod (210) to move.

2. The pedal assembly of claim 1, wherein the buffer includes a central cylinder (120) and a bushing (130) surrounding the central cylinder (120), the pedal assembly including a connecting bracket (140), the connecting bracket (140) connecting the pedal rod (110) and the central cylinder (120), wherein a center line of the central cylinder (120) is the first center axis, and the bushing (130) is configured to be deformable.

3. The pedal assembly in accordance with claim 2, wherein the bushing (130) is of rubber construction.

4. The pedal assembly according to claim 2, wherein the bushing (130) is provided with a first cutout (131) on a side facing the vacuum booster pump (200).

5. The pedal assembly according to claim 4, wherein a side of the bushing (130) facing away from the vacuum booster pump (200) is provided with a second cutout (132).

6. The pedal assembly according to claim 2, wherein a groove (111) is formed in a side of the pedal rod (110) facing the vacuum booster pump (200), the buffer member is disposed in the groove (111), two ends of the connecting frame (140) are respectively connected to opposite side edges of the groove (111), and the central cylinder (120) is connected to a middle portion of the connecting frame (140).

7. A braking system, characterized in that the braking system comprises a vacuum booster pump (200) and a pedal assembly according to claim 1.

8. A braking system, characterized in that the braking system comprises a vacuum booster pump (200) and the pedal assembly of any one of claims 2 to 5, one end of a push rod (210) of the vacuum booster pump (200) is provided with a mounting through hole (211), the buffer is arranged in the mounting through hole (211) and the bushing (130) is attached to the inner wall of the mounting through hole (211).

9. The brake system according to claim 8, wherein a groove (111) is formed in a side of the pedal lever (110) facing the vacuum booster pump (200), one end of the push rod (210) having the mounting through hole (211) extends into the groove (111) so that the buffer member is disposed in the groove (111), both ends of the link frame (140) are respectively connected to opposite side edges of the groove (111), and the central cylinder (120) is connected to a middle portion of the link frame (140).

10. A vehicle, characterized in that it comprises a powertrain, sensors and a braking system according to any one of claims 7-9; wherein the sensor is configured to: the powertrain can be controlled to provide braking force to the vehicle during movement of the first central axis of the cushioning member of the pedal assembly from the first position to the second position.

Images