Design and validation of an electric booster brake system with hardware-in-the-loop simulation

Abstract eng:
This paper presents an electric booster brake system, consisting of a motor and a rotational-to-linear motion mechanism which may replace the traditional vacuum booster. The system meets all the relevant requirements of electric vehicles and active safety technologies, such as brake booster without vacuum pump, coordination with regenerative braking, active brake function, etc. A sliding mode controller is proposed to implement the brake booster function using Lyapunov function approach to ensure the algorithm robustness. A number of simulations are conducted using a hardware-in-the-loop test rig. The simulation results show that the proposed controller leads to fast generation of booster brake forces, and provides a comfortable brake pedal feeling.

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