CN110789502A

CN110789502A - Lever ratio-variable brake pedal with angle sensor for new energy vehicle

Info

Publication number: CN110789502A
Application number: CN201910620266.9A
Authority: CN
Inventors: 宋建勋; 尹浩
Original assignee: Zhejiang Zero Run Technology Co Ltd
Current assignee: Zhejiang Leapmotor Technology Co Ltd; Zhejiang Zero Run Technology Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-02-14

Abstract

The invention discloses a lever ratio variable brake pedal with an angle sensor for a new energy vehicle, which comprises a pedal base and a pedal arm rotatably connected and arranged on the pedal base, wherein the pedal base is provided with a swing arm, a hinged connecting rod is arranged between the pedal arm and the swing arm so as to drive the swing arm to rotate when the pedal arm rotates, and the pedal base is provided with an angle sensor for detecting the rotation angle of the swing arm. The invention aims to provide a lever ratio variable brake pedal with an angle sensor for a new energy vehicle, which reduces the Z-direction space occupation and is convenient for outputting pedal position signals.

Description

Lever ratio-variable brake pedal with angle sensor for new energy vehicle

Technical Field

The invention belongs to the field of braking of new energy vehicles, and particularly relates to a variable lever ratio brake pedal with an angle sensor for a new energy vehicle.

Background

The brake pedal is a pedal for limiting power in a vehicle, namely a pedal of a foot brake (service brake), is used for decelerating and stopping, is one of five main operating parts for driving an automobile, and is used frequently. The traditional pedal arm is usually one arm, the requirement on the Z-direction arrangement space in the automobile is high, the new energy automobile is required to be arranged for head-up display, the Z-direction space is small, and the problem that the pedal arm cannot be arranged frequently is solved. The traditional brake pedal can not output pedal position signals, but the new energy automobile needs pedal position signals to carry out energy recovery control and strength control during automatic braking.

Disclosure of Invention

The invention provides a lever ratio variable brake pedal with an angle sensor for a new energy vehicle, which aims to overcome the defects in the prior art and reduce the occupied Z-direction space and is convenient for outputting pedal position signals.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a take angle sensor's variable lever ratio brake pedal for new forms of energy vehicle, includes pedal base and rotates the pedal arm that connects the setting on pedal base, pedal base is equipped with the swing arm, be equipped with articulated connecting rod between pedal arm and the swing arm to drive the swing arm and rotate when making pedal arm rotate, pedal base is equipped with the angle sensor who detects swing arm turned angle. When the pedal arm is stepped by a foot to rotate downwards, the pedal arm drives the swing arm to rotate simultaneously through the action of the connecting rod. When the swing arm rotates, the angle sensor on the pedal base can detect the rotating angle of the swing arm and output pedal angle position information. Through connecting rod and swing arm cooperation, can reduce the space requirement to Z to, the footboard arm is when rotating simultaneously, and the lever ratio also changes, provides better footboard sensation for the driver.

Preferably, the pedal base is provided with a first rotating shaft, and the upper end of the pedal arm is in rotating fit with the first rotating shaft. The pedal arm and the pedal base are positioned through the first rotating shaft, and meanwhile, the pedal arm rotates by taking the first rotating shaft as an axis, so that the rotation stability of the pedal arm is ensured.

Preferably, the pedal base is provided with a second rotating shaft parallel to the first rotating shaft, and the middle part of the swing arm is in rotating fit with the second rotating shaft. The swing arm and the pedal base are positioned through the second rotating shaft, and meanwhile, the swing arm rotates by taking the second rotating shaft as an axis, so that the rotation stability of the swing arm is guaranteed.

Preferably, the connecting link includes a first link and a second link arranged in parallel, and the pedal arm and the swing arm are pivotally connected between the first link and the second link. The first connecting rod and the second connecting rod are arranged in parallel on two sides of the pedal arm and the swing arm, so that the acting force of the pedal arm is stably transmitted to the swing arm through the first connecting rod and the second connecting rod on the two sides.

Preferably, the swing arm is provided with a booster push rod connecting end extending outwards, and a connecting hole is formed in the booster push rod connecting end. The connecting end of the push rod of the booster is connected with the push rod of the booster,

preferably, one side of the pedal base is provided with a positioning seat for fixing the angle sensor, and the positioning seat is provided with a cover body outside the angle sensor.

Preferably, one end of the swing arm close to the positioning seat is provided with a sensor acting part, and the sensor acting part is provided with an acting rod matched with the angle sensor.

Preferably, the pedal base is provided with a stop lamp switch, and the pedal arm is provided with an acting end acting on the stop lamp switch.

Preferably, the pedal base is provided with an air blowing pipe below the swing arm, an air outlet of the air blowing pipe faces the angle sensor, a valve body is arranged in the middle of the air blowing pipe, a valve core for controlling the on-off of the air blowing pipe and a spring for driving the valve core to reset are arranged in the valve body, and the swing arm pushes the valve core to open the air blowing pipe when rotating. Like this, drive the swing arm when the connecting rod and rotate, swing arm contact case makes the case remove to the valve body is inside, opens the gas blow pipe, and gas blow pipe intercommunication compressed air blows to angle sensor position, realizes the clean dust removal to angle sensor, reduces the dust to angle sensor's interference.

The invention has the beneficial effects that: (1) the occupied Z-direction space is reduced, the arrangement requirement on the Z-direction space is lowered, and meanwhile, the lever ratio can better meet the use requirement of a driver; (2) the pedal position signal is output, so that the control of energy recovery and the intensity control during automatic braking of a new energy vehicle system are facilitated; (3) the angle sensor is cleaned by removing dust while braking, so that the angle sensor can work reliably and stably.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic view of a connection structure of a pedal arm according to embodiment 1 of the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: the brake pedal comprises a pedal base 1, a brake lamp switch 2, an action end 3, a pedal arm 4, a swing arm 5, a sensor action part 5a, a booster push rod connecting end 5b, an action rod 6, a cover body 7, an angle sensor 8, a positioning seat 9, a first rotating shaft 10, a second rotating shaft 11, a connecting rod 12, a first connecting rod 12a, a second connecting rod 12b, an air blow pipe 13, a valve body 14, a spring 15, a valve core 16 and a circulation hole 16 a.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

Example 1:

in the embodiment shown in fig. 1 and 2, the lever ratio variable brake pedal with the angle sensor for the new energy vehicle comprises a pedal base 1 and a pedal arm 4, wherein the pedal arm 4 is rotatably connected to the pedal base 1, the pedal base 1 is provided with a first rotating shaft 10, and the upper end of the pedal arm 4 is rotatably matched with the first rotating shaft 10. The pedal base 1 is further provided with a swing arm 5, the pedal base 1 is provided with a second rotating shaft 11 parallel to the first rotating shaft 10, and the middle of the swing arm 5 is in running fit with the second rotating shaft 11. The pedal base 1 is provided with a stop lamp switch 2, and the pedal arm 4 is provided with an action end 3 acting on the stop lamp switch 2.

As shown in fig. 2, a connecting rod 12 is hinged between the pedal arm 4 and the swing arm 5 so that the swing arm 5 is driven to rotate when the pedal arm 4 rotates, the connecting rod 12 includes a first connecting rod 12a and a second connecting rod 12b arranged in parallel, and the pedal arm 4 and the swing arm 5 are rotatably connected between the first connecting rod 12a and the second connecting rod 12 b.

The pedal base 1 is provided with an angle sensor 8 for detecting the rotation angle of the swing arm 5, and the angle sensor 8 detects the rotation angle of the swing arm 5 and outputs pedal angle position information. One end of the swing arm 5 close to the positioning seat 9 is provided with a sensor acting part 5a, and the sensor acting part 5a is provided with an acting rod 6 matched with the angle sensor. One side of the pedal base 1 is provided with a positioning seat 9 for fixing the angle sensor, and the positioning seat 9 is provided with a cover body 7 outside the angle sensor. The swing arm 5 is provided with a booster push rod connecting end 5b extending outwards, and the booster push rod connecting end 5b is provided with a connecting hole.

In the actual operation process, as shown in fig. 1 and 2, when the driver depresses the pedal, the pedal arm 4 rotates around the first rotating shaft 10, and drives the connecting rod 12 to eject out toward the swing arm 5. The swing arm 5 pivots about the first pivot shaft 10 in the same direction as the pedal arm 4. The swing arm 5 is in pivoted in-process, and the action bar 6 of sensor effect portion 5a drives angle sensor's sense terminal and rotates, and angle sensor can collect the turned angle information of swing arm 5.

Example 2:

the difference between the embodiment 2 and the embodiment 1 is that, as shown in fig. 3, the pedal base 1 is provided with an air blowing pipe 13 below the swing arm 5, an air outlet of the air blowing pipe 13 faces the angle sensor, a valve body 14 is arranged in the middle of the air blowing pipe 13, and a valve core 16 for controlling the on-off of the air blowing pipe 13 and a spring 15 for driving the valve core 16 to return are arranged in the valve body 14. One end of the valve body 14 is provided with an air inlet, and the other end is provided with an air outlet, wherein the air inlet and the air outlet are respectively communicated with the air blowing pipe 13. The valve body 16 is provided with a flow hole 16a, and the flow hole 16a communicates the air inlet and the air outlet when the valve body 16 is opened and blocks the air inlet and the air outlet when the valve body 16 is closed.

In the actual operation process, when a driver steps on a pedal, the pedal arm 4 rotates around the first rotating shaft 10, the swing arm 5 is driven to rotate through the connecting rod 12, at the moment, the swing arm 5 is gradually close to the valve body 14 below until the lower end of the swing arm 5 is in contact with the valve core 16 on the valve body 14, the swing arm 5 pushes the valve core 16 to move downwards, the air inlet is communicated with the air outlet, the air blowing pipe 13 is opened to blow up the angle sensor, and dust removing operation is carried out. When the swing arm 5 is rotated in the reverse direction away from the valve body 14, the swing arm 5 is disengaged from the valve core 16 and the valve core 16 is reset to again block the blow tube 13.

Claims

1. The utility model provides a take angle sensor's variable lever ratio brake pedal for new energy automobile, includes pedal base (1) and rotates to connect pedal arm (4) of setting on pedal base (1), characterized by, pedal base (1) is equipped with swing arm (5), be equipped with articulated connecting rod (12) between pedal arm (4) and swing arm (5) to drive swing arm (5) when making pedal arm (4) rotate and rotate, pedal base (1) is equipped with angle sensor (8) that carry out the detection to swing arm (5) turned angle.

2. The lever ratio variable brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein the pedal base (1) is provided with a first rotating shaft (10), and the upper end of the pedal arm (4) is rotatably matched with the first rotating shaft (10).

3. The lever ratio variable brake pedal with the angle sensor for the new energy vehicle as claimed in claim 2, wherein the pedal base (1) is provided with a second rotating shaft (11) parallel to the first rotating shaft (10), and the middle part of the swing arm (5) is rotatably matched with the second rotating shaft (11).

4. The variable lever ratio brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein the connecting rod (12) comprises a first connecting rod (12 a) and a second connecting rod (12 b) arranged in parallel, and the pedal arm (4) and the swing arm (5) are pivotally connected between the first connecting rod (12 a) and the second connecting rod (12 b).

5. The variable lever ratio brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein the swing arm (5) is provided with a booster push rod connection end (5 b) extending outward, and the booster push rod connection end (5 b) is provided with a connection hole.

6. The lever ratio variable brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein a positioning seat (9) for fixing the angle sensor (8) is provided at one side of the pedal base (1), and the positioning seat (9) is provided with a cover (7) outside the angle sensor (8).

7. The lever ratio variable brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein a sensor action portion (5 a) is provided at an end of the swing arm (5) close to the positioning seat (9), and the sensor action portion (5 a) is provided with an action rod (6) cooperating with the angle sensor (8).

8. The variable lever ratio brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein the pedal base (1) is provided with a brake light switch (2), and the pedal arm (4) is provided with an acting end (3) acting on the brake light switch (2).

9. The lever ratio variable brake pedal with the angle sensor for the new energy vehicle as claimed in claim 1, wherein a blow pipe (13) is arranged below the swing arm (5) of the pedal base (1), an air outlet of the blow pipe (13) faces the angle sensor (8), a valve body (14) is arranged in the middle of the blow pipe (13), a valve core (16) for controlling the on-off of the blow pipe (13) and a spring (15) for driving the valve core (16) to reset are arranged in the valve body (14), and the swing arm (5) pushes the valve core (16) to open the blow pipe (13) when rotating.