Abstract
An antilock braking system (ABS) can ensure that the wheels are not locked during the braking process which is an important system to ensure the safety of braking. Regenerative braking is also a crucial system for hybrid vehicles and helps to improve the cruising range of the car. As such, the coordinated control of a braking system and an ABS is an important research direction. This paper researches the coordinated control of the regenerative braking system and the ABS in the hybrid vehicle based on the composite structure motor (CSM-HEV). Firstly, two new braking modes which are engine-motor coordinated braking (EMCB) and dual-motor braking (DMB) are proposed and the coordinated control model of regenerative braking and ABS is established. Then, for the purpose of optimal operating efficiency and guaranteeing the vehicle brake slip rate, a braking force distribution strategy based on predictive control algorithm is proposed. Finally, the Simulink model is established to simulate the control strategy. Results show that the slip rate can well track the target and ensure the efficient operation of the system. Compared with the normal braking mode, the braking energy recovery rate of EMCB is similar, but it can reduce the fuel loss of the engine during the braking process by 30.1%, DMB can improve the braking energy recovery efficiency by 16.78%, and the response time to track target slip is increased by 12 ms.
Highlights
An antilock braking system (ABS) is an important system to ensure the safety of automobile braking
The equivalent efficiency of the regenerative braking system in dual-motor braking (DMB) is shown in Equation (8): ηequa
The evaluation of energy recovery performance of the new braking mode proposed in this paper is slightly different from that of ordinary hybrid vehicles
Summary
An antilock braking system (ABS) is an important system to ensure the safety of automobile braking. It can ensure that the wheels are not locked during the braking process, improve the directional stability of the vehicle and the steering ability, and shorten the braking distance. The regenerative braking system is an important system for hybrid electric vehicles. The motor converts the braking energy into electrical energy It can improve the cruising range of the vehicle. It is an important research content for the coordinated control of the regenerative braking system and ABS. It is an important research content to coordinate the braking force distribution in the braking process considering the braking safety of the vehicle and the efficiency of the regenerative. 3. ABS in CSM-HEV the vehicle’s directional stability and steering maneuverability, and shorten the braking distance.
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