基于EHB的坡道起步辅助策略开发

Research on Ramp Auxiliary Start Control Strategy Based on EHB

车辆坡道起步是一种典型工况。针对坡道起步过程中容易发生溜车、车身抖动大以及驾驶舒适性差等问题,提出了基于EHB系统的坡道起步辅助策略开发研究。论文重点研究了EHB的辅助坡道起步控制策略。通过对车辆坡道起步动力学分析,制定了合理的控制策略,在Simulink中对控制策略进行模型搭建并对模型进行仿真。对仿真结果分析得到控制策略的可行性以及EHB在车辆坡道起步时优越性。

Starting a vehicle ramp is a typical condition.Aiming at the problems of easy rolling,large body shake and poor driving comfort during the start of the slope,the development of the slope start assist strategy based on EHB system is proposed.The paper focuses on the EHB auxiliary ramp start control strategy.Through the analysis of the starting dynamics of the vehicle ramp,a reasonable control strategy is established.The control strategy is modeled and simulated in Simulink.The simulation results are ana⁃lyzed to obtain the feasibility of the control strategy and the superiority of EHB when starting on the vehicle ramp.