Brake pedal capable of continuously adjusting lever ratio

Abstract

The brake pedal capable of continuously adjusting the lever ratio comprises a pedal body and a pedal arm, and further comprises a pedal adjusting mechanism used for adjusting the lever ratio, and the pedal adjusting mechanism comprises an adjuster, an electric push rod and a pin shaft connected with the electric push rod; a pin shaft mounting hole is formed in the pedal arm, and the pin shaft is arranged in the pin shaft mounting hole; one end of the regulator is connected with the booster push rod, and the other end is connected with the electric push rod through a connecting rod and a pin shaft; the adjuster is provided with a sliding sleeve, and the connecting rod is connected with the adjuster through the sliding sleeve. The pedal operating force can be adjusted by adjusting the lever ratio of the pedal, so that the operating force of a driver is changed, and the requirements of different drivers are met; when parameters of all parts of the braking system are matched and the pedal feeling needs to be finely adjusted, the pedal feeling can be adjusted by adjusting the lever ratio of the pedal, operation is convenient and fast, and the effect is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a brake pedal capable of continuously adjusting a lever ratio. Background Art

[0002] At present, the existing automobile pedal mechanisms are all fixed lever ratios, and usually provide a mounting seat and a rotating shaft for the pedal arm through a pedal bracket fixed on the front panel of the vehicle body. When the vehicle needs to brake, the driver steps on the brake pedal to generate brakes to slow down the vehicle. The existing brake pedal mechanism has technical problems such as difficulty in adjustment, inconvenience in disassembly and assembly, and it is not conducive to the driver to adjust the pedal force according to his own needs. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a brake pedal, which can continuously adjust the lever ratio within a certain range. With the brake pedal mechanism of the present invention, when different drivers drive the same car, the pedal operating force can be adjusted by adjusting the lever ratio of the pedal, thereby changing the size of the driver's operating force to meet the needs of different drivers; when the parameters of various components of the brake system have been matched and the pedal feel needs to be fine-tuned, the pedal feel can be adjusted by adjusting the lever ratio of the pedal, which is convenient to operate and has significant effects.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a brake pedal with continuously adjustable lever ratio, comprising a pedal body and a pedal arm, the pedal arm is connected to the pedal body through a pedal arm rotating pin, and also comprises a pedal adjustment mechanism for adjusting the lever ratio, the pedal adjustment mechanism comprises a regulator, an electric push rod and a pin connected thereto; a pin mounting hole is provided on the pedal arm, and the pin is provided in the pin mounting hole; one end of the regulator is connected to the booster push rod, and the other end is connected to the electric push rod through a connecting rod and a pin; the regulator is provided with a sliding sleeve, and the connecting rod is connected to the regulator through the sliding sleeve.

[0005] Furthermore, the sliding sleeve can move up and down in the vertical direction along the adjuster.

[0006] Preferably, the pin shaft is fixedly connected to the electric push rod and the connecting rod, and the connecting rod is fixedly connected to the sliding sleeve.

[0007] Preferably, the regulator is threadedly connected to the booster push rod.

[0008] Preferably, the pin shaft mounting hole is an oblong hole.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a brake pedal with continuously adjustable lever ratio, and the pedal lever ratio can be continuously adjusted within a certain range by setting a pedal adjustment mechanism; the setting of the pedal lever ratio adjustment mechanism does not affect the supporting structure, and the operation is convenient; the setting of the pedal adjustment mechanism does not require changing the position of the pedal pad, and the ergonomics does not need to be re-calibrated, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified view of the local structure. DETAILED DESCRIPTION

[0011] It should be noted that the term "automobile" or other similar terms used in this article generally includes motor vehicles, such as sports utility vehicles (SUVs), buses, trucks, various commercial vehicles, watercraft including various boats and ships, airplanes, etc., and includes hybrid vehicles, electric vehicles, and other alternative fuel vehicles.

[0012] In addition, the term "comprise" and similar terms used in this document, when used in this specification, specify the existence of the described features, steps, operations, elements, and components, but do not exclude the existence or addition of one or more other features, steps, operations, elements, components and / or groups thereof.

[0013] Unless otherwise specified, directional words used in this document such as "up, down, left, right, etc. are usually relative to the normal driving state of the vehicle. Specifically, when the vehicle is driving normally, the direction toward the ceiling is "up", the direction toward the floor is "down", the direction toward the left wheel is "left", and the direction toward the right wheel is "right", and "inside and outside" refer to the inside and outside of the contours of the corresponding components.

[0014] The following is combined with Figure 1-2 The specific implementation of the present invention is described in detail. The present invention provides a brake pedal with a continuously adjustable lever ratio, comprising a pedal body 1 and a pedal arm 2, wherein the pedal body 1 is provided with a pedal arm rotating pin 3, and the pedal 2 is connected to the pedal body through the pedal arm rotating pin 3.

[0015] Different from the prior art, the brake pedal of the present invention further includes a pedal adjustment mechanism 4 for adjusting the lever ratio, and the pedal adjustment mechanism 4 includes a regulator 5, an electric push rod 6 and a pin 7 connected thereto. A pin mounting hole 8 is provided on the pedal arm 2, and the pin 7 is arranged in the pin mounting hole 8. Preferably, the pin mounting hole 8 is an oblong hole, and when the lever ratio needs to be adjusted, the pin 7 can move freely in the pin mounting hole 8. As other embodiments, the pin mounting hole 8 can also adopt other forms, as long as the effect of adjusting the position of the pin can be achieved, it is within the protection scope of the present invention.

[0016] like Figure 1 and 2 As shown, one end of the regulator 5 is connected to the booster push rod 9, and the other end is connected to the electric push rod 6 through the connecting rod 10 and the pin 7. A sliding sleeve 11 is provided at one end of the regulator 5 close to the connecting rod 10, and the connecting rod 10 is connected to the regulator 5 through the sliding sleeve 11. Further, the sliding sleeve 11 can move up and down along the regulator 5 in the vertical direction.

[0017] Preferably, the pin 7 is fixedly connected to the electric push rod 6 and the connecting rod 10, the connecting rod 10 is fixedly connected to the sliding sleeve 11, and the regulator 5 is threadedly connected to the booster push rod 9. As other embodiments, as long as the technical effects of the present invention can be achieved, other alternative component connection methods are within the protection scope of the present invention.

[0018] The working principle of the present invention is described below in conjunction with the accompanying drawings.

[0019] First, define the pedal leverage ratio I=L1 / L2, where L1 is the distance from the center point A of the pedal arm rotation pin 3 to the pedal pad force point C, and L2 is the distance from the center point A of the pedal arm rotation pin 3 to the center point B of the pin 7. L1 is usually a fixed value, and when L2 changes continuously, the pedal leverage ratio I can be changed continuously.

[0020] When the length of the electric push rod 6 needs to be adjusted according to the needs of different drivers, the electric push rod 6 drives the pin 7 to move, and the lever ratio changes, which roughly corresponds to Figure 2 There are three situations: P, P1, and P2.

[0021] P: installed state, the pin 7 is approximately in the middle of the pin mounting hole 8, and the regulator 5 is in a vertical state; P1: In the contracted state, the electric push rod 6 drives the pin 7 to move upward. At this time, L2 becomes smaller, and the corresponding pedal lever ratio I becomes larger. At this time, the operating force fed back to the driver becomes smaller, and the pedal feel will change accordingly with the change of the pedal operating force; P2: In the extended state, the electric push rod 6 drives the pin shaft 7 to move downward. At this time, L2 becomes larger, and the corresponding pedal lever ratio I becomes smaller. At this time, the operating force fed back to the driver becomes larger, and the pedal feel will change accordingly with the change of the pedal operating force.

[0022] The above-described embodiments are merely descriptions of preferred implementations of the technical solution of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solution of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A brake pedal with a continuously adjustable lever ratio, comprising a pedal body and a pedal arm, wherein the pedal arm is connected to the pedal body through a pedal arm rotating pin, characterized in that: It also includes a pedal adjustment mechanism for adjusting the lever ratio, the pedal adjustment mechanism includes a regulator, an electric push rod and a pin connected thereto; a pin mounting hole is provided on the pedal arm, and the pin is provided in the pin mounting hole; one end of the regulator is connected to the booster push rod, and the other end is connected to the electric push rod through a connecting rod and a pin; the regulator is provided with a sliding sleeve, and the connecting rod is connected to the regulator through the sliding sleeve.

2. The brake pedal with continuously adjustable lever ratio according to claim 1, characterized in that: The sliding sleeve can move up and down along the adjuster in a vertical direction.

3. The brake pedal with continuously adjustable lever ratio according to claim 2, characterized in that: The pin shaft is fixedly connected to the electric push rod and the connecting rod, and the connecting rod is fixedly connected to the sliding sleeve.

4. The brake pedal with continuously adjustable lever ratio according to claim 3, characterized in that: The regulator is threadedly connected to the booster push rod.

5. The brake pedal with continuously adjustable lever ratio according to any one of claims 1 to 4, characterized in that: The pin shaft mounting hole is an oblong hole.

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