Pedal feeling simulator with changeable pedal feeling

Abstract

The invention relates to a pedal feeling simulator with changeable pedal feeling, which comprises a simulation cylinder, a first piston, a second piston, a third piston, a fourth piston, a fifth piston, a first spring, a second spring, a third spring, a pedal cylinder, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, an electronic control unit (ECU) and a pedal displacement sensor. The pedal feeling simulator with the changeable pedal feeling comprises three pedal feeling modes, is simple in structure, can provide good pedal feeling, mainly adopts springs as elements for generating pedal feedback force, simulates pedal feelings in different brake stages through different spring combinations, on-off of the hydraulic loop can be controlled through opening and closing of the electromagnetic valve, different pedal feelings are achieved through different combinations of the springs in the working state, a driver can select different pedal feeling modes according to own driving habits, and better driving experience is achieved.

Description

technical field [0001] The invention relates to a pedal feeling simulator, in particular to a multi-mode pedal feeling simulator with variable pedal feel. Background technique [0002] With the development of automobile electrification and intelligence, more and more automobiles use brake-by-wire systems to replace traditional brake systems using vacuum boosters. In the brake-by-wire system, the electronic control unit ECU receives the signal of the pedal travel sensor, and controls the rotation of the brake motor according to the signal, and pushes the piston to generate brake pressure. The brake-by-wire system is not only simple in structure, but also has faster response speed and better controllability than the traditional brake system, which is the advanced development direction of the brake system. [0003] The brake pedal of the brake-by-wire system is decoupled from the brake hydraulic circuit, which can conveniently realize the regenerative braking function. But al...

AI Technical Summary

Problems solved by technology

But also because of this, the brake-by-wire system cannot provide the driver with a brake pedal feel through the brake hydraulic circuit, which is not conducive to the driver's handling of the vehicle, so a pedal feel simulator is required to provide a feedback force to ensure the driver's foot feel

However, the current pedal feel simulator can simulate a single pedal feel, lack of variation, cannot selectively choose the appropriate pedal feel, and cannot well match drivers with different driving habits

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