Browse Publications Technical Papers 2018-01-0828
2018-04-03

Modelling and Validation for an Electro-Hydraulic Braking System Equipped with the Electro-Mechanical Booster 2018-01-0828

The intelligent and electric vehicles are the future of vehicle technique. The development of intelligent and electric vehicles also promotes new requirements to many traditional chassis subsystems, including traditional braking system equipped with vacuum boosters. The Electro-Mechanical Booster is an applicable substitute of traditional vacuum booster for future intelligent and electric vehicles. It is independent of engine vacuum source, and can be combined with electric regenerative braking. A complete system model is necessary for system analysis and algorithm developing. For this purpose, the modeling of electro-hydraulic braking system is necessary.
In this paper, a detailed electro-hydraulic braking system model is studied. The system consists of an electro-mechanical booster and hydraulic braking system. The electro-mechanical booster which mainly contains a permanent magnet synchronous motor (PMSM) and a set of transmission mechanism is the critical component. First, the electro-mechanical booster model and hydraulic braking system model are built. Then, based on experimental data, the electro-mechanical booster model and hydraulic braking system model are validated separately. Finally, the two models are integrated and validated. The results show that the integrate model built in this paper can be well fitted with the real system.

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