Abstract
The pedal characteristic from experiments for target,a pedal simulator with elastic components and hydraulic unit as the basic simulation unit was designed,which based on the analysis on the pedal characteristics in traditional hydraulic braking system. The "breaking feeling"evaluation index was analyzed. The simulation model of pedal simulator was established by using AMESim and Matlab / Simulink. The pedal characteristic was simulated. The simulation results show that,the pedal reaction force increases with the increase of the pedal stroke,the pedal characteristics could be able to change following the target pedal characteristics;the different pedal characteristics could be obtained by changing the stiffness of elastic component and the pressure of hydraulic cylinder; the "breaking feeling"index was evaluated on three different simulators,and the maximum braking feel index value is 92. 4 points,which means a"good"brake feeling. The pedal characteristics could adapt to different vehicle or meet needs of different drivers by adjusting the parameters of simulator.
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