Second-stage pedal sensing simulator and automotive brake pedal mechanism

Abstract

The invention discloses a second-stage pedal sensing simulator and an automotive brake pedal mechanism. The brake pedal mechanism comprises a mounting bracket, a brake pedal, the second-stage pedal sensing simulator and an induction sensor, wherein the second-stage pedal sensing simulator is used for perceiving brake intent of a driver in advance; a pedal displacement sensor is used for accurately recognizing the brake intent of the driver; and the pedal sensing simulator comprises a shell, a first elastic assembly, a second elastic assembly, a brake pushrod and an emergency switch. Compared with the prior art, the implementation manner of the invention has the advantages that by adopting a second-stage simulation manner that the elastic assembly and the second elastic assembly play a main role, the operation sense of the brake pedal mechanism can be effectively simulated, the structure is simple and reasonable, the operation is convenient, the response is rapid, the brake stability, comfort and safety are improved, and a brake intent pre-recognition function and an emergency brake function are realized.

Description

technical field [0001] The invention belongs to the technical field of vehicle brake equipment, and in particular relates to a two-stage pedal feeling simulator and an automobile brake pedal mechanism thereof. Background technique [0002] The braking system is one of the important components of the automobile chassis, which is directly related to the comprehensive performance of the automobile and the safety of life and property. Although the traditional hydraulic and pneumatic braking systems can meet the requirements of the existing braking regulations, there are complex pipeline arrangements, relying on vacuum booster devices, slow braking response speed, non-active adjustment of braking torque, and difficulty in matching Other deficiencies such as system integration control are not suitable for the development requirements of automobiles, especially electric vehicle chassis integration control. [0003] The electronically controlled braking system realizes the decoupli...

AI Technical Summary

Problems solved by technology

However, the magneto-rheological fluid pedal feeling simulator in the above invention and the piezoelectric pedal pressure sensor in the above invention all have problems such as complex structure, cumbersome control, high cost and difficult implementation, and both of them have not considered manufacturing Motion intention pre-recognition and emergency braking functions

So far, the two-stage pedal feel simulator with braking intention pre-recognition and emergency braking functions and its automotive brake pedal mechanism have been rarely mentioned.

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