Integrated control of braking energy regeneration and pneumatic anti-lock braking

Abstract

This paper mainly focuses on integrated control of the brake system of a hybrid electric vehicle, i.e. the integration of friction braking and regenerative braking during anti-lock braking control and series brake blending during normal deceleration. Based on a series regenerative braking system, the structure of an integrated brake system is proposed. The models of each part of a hybrid electric bus are built in MATLABÆ Simulink, taking authorized articles as references. A test bench with the original pneumatic brake system of a bus is also built to carry out hardware-in-the-loop (HIL) tests of the integrated brake system and to study the characteristics of the system better. The integrated control strategy is proposed on the basis of a pneumatic anti-lock braking strategy. Simulation results show that the participation of regenerative braking in the anti-lock braking control can be beneficial to both the ride comfort and the braking performance of the vehicle. HIL test results validate the results of the simulations. An integrated brake controller is designed and made to carry out the control strategies on board. A field in which further research could be carried out is also proposed.

Keywords

regenerative braking anti-lock braking system simulation hardware-in-the-loop tests brake controller hybrid electric city bus

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