Spring booster, clutch pedal assembly and vehicle

Abstract

The invention discloses a spring booster, a clutch pedal assembly and a vehicle. The spring booster comprises a sleeve bracket fixedly connected to a base, a mandrel bracket hinged with a pedal arm, an outer side spring covering the external of a component formed by fitting the sleeve bracket and the mandrel bracket, an inner side elastic component positioned in the sleeve bracket and coaxial with the outer side spring, and a slide mechanism arranged on the sleeve bracket; under the effect of pedal force, the mandrel bracket can axially move from a first position of the sleeve bracket to a second position of the sleeve bracket corresponding to the sleeve bracket; in the process from the first position to the second position, the slide mechanism compresses and limits the inner side elastic component; and in the second position, the inner side elastic component is deviated from the limitation of the slide mechanism to freely expand. The spring booster can improve the clutch pedal boosting value under the preconditions of guaranteeing proper pedal travel and proper maximum pedal return force.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a spring booster, a clutch pedal assembly and a vehicle. Background technique [0002] The clutch is an important part for changing the speed of a manual transmission car. At the same time, the use of the clutch also plays a variety of important purposes such as distributing power and ensuring braking. At present, the requirements for the comfort of the automobile control system are getting higher and higher. As one of the devices that are frequently manipulated when changing gears, the clutch pedal is obviously very important to the driver. If it has good control performance, it can be Reducing the driver's manipulation intensity, on the other hand, can give people a sense of comfort in manipulation. In order to ensure the comfort of the clutch operation, the pedal stroke should not be too long, and the pedal force cannot be reduced by increasing the lever ratio of the clutc...

AI Technical Summary

Problems solved by technology

[0004] However, the current clutch adopts a hydraulic system. Due to the limitation of the maximum return force of the clutch pedal and the power boost value at the end of the pedal, the maximum effective power boost can only be about 15-25N.

Still facing the problem of large pedal rebound force and small power-assist effect, the driver feels an increase in force variability during the pedaling process, uncomfortable feet, and easy fatigue

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