【摘要】 针对汽车电动助力转向系统(EPS)对控制系统的高跟踪性、高协调性要求,在分析PID控制及PID参数变化对系统性能影响的基础上,提出用模糊推理方法在动态过程中改变PID参数模糊自整定控制策略。仿真结果表明,所设计的电动转向控制系统具有良好的跟踪性能,较好地保证了控制量的可靠性和系统的实时性。更多还原

【Abstract】 The fuzzy control strategy was used for the research and design of electric power-steering system controller.According to the requirement of trace characteristic of EPS system for its controller,based on the analysis of PID control method and the influence of parameter variation of PID to EPS system function,the rule of fuzzy controller parameter auto-turning scaling during the motion was introduced.The simulation result shows that the designed controller makes the EPS system has good characteristics in the trace,the anti-disturbance,the reliability and real-time reaction.更多还原