多目标动态协调发动机电机液压制动控制策略

发布时间：2018-02-27 15:38

本文关键词： 混合动力车辆协调控制策略模型仿真试验　出处：《机械设计与制造》2016年09期 　论文类型：期刊论文

【摘要】：针对混合动力汽车发动机参与工作模式下附着系数分离路面起步或低速行驶,防止产生更大的附加横摆力矩而影响车辆的稳定性,提出基于多目标动态协调的发动机电机液压制动协调控制策略。根据混合动力车辆多动力源的特点,搭建车辆驱动轮在该工况下的受力模型,基于逆模型的液压制动力矩控制算法和发动机目标转矩设计算法,制定所研究控制策略。基于Simulink仿真分析了混合动力汽车控制系统进入发动机电机液压制动协调控制策略时在不同工况下的仿真结果。结果可知采取这种电控策略能够提高车辆的加速性能,更加有效地抑制低附着侧驱动轮打滑。为了验证提出的这种控制策略对实际执行系统的有效性,采取了试验验证的方法搭建了试验平台,通过仿真分析和试验数据的对比,证明了所提出控制策略的合理性和有效性。
[Abstract]:In order to prevent the formation of additional yaw torque and influence the stability of the vehicle, the hybrid electric vehicle engine can separate the road from starting or running at low speed with the adhesion coefficient in the working mode. The coordinated control strategy of motor hydraulic brake based on multi-objective dynamic coordination is proposed. According to the characteristics of multi-power source of hybrid electric vehicle, the force model of vehicle driving wheel under this working condition is built. Hydraulic brake torque control algorithm based on inverse model and engine target torque design algorithm, Based on Simulink simulation, the simulation results of hybrid electric vehicle control system under different working conditions when entering engine motor hydraulic brake coordination control strategy are analyzed. The results show that this kind of electronic control strategy is adopted. Can improve the acceleration performance of the vehicle, In order to verify the effectiveness of the proposed control strategy to the actual execution system, a test platform is built by using the method of test verification, and the simulation analysis and the comparison of test data are carried out to verify the effectiveness of the proposed control strategy. The rationality and effectiveness of the proposed control strategy are proved.
【作者单位】：长沙理工大学汽车与机械工程学院;广东机电职业技术学院汽车学院;
【分类号】：U469.7

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