摘要
针对汽车经过凸块或不平路面时导致转向盘上产生过大冲击力矩给驾驶员带来不适感的问题,通过建立电动助力转向动力学模型估计折算到转向小齿轮上的路面冲击力矩,最终确定出路面冲击补偿电流,用以衰减由路面冲击而产生的转向盘冲击力矩。实车试验结果表明,本文方法能够在不增加电动助力转向系统元件的基础上,有效衰减转向盘冲击力矩,有较好的实际应用价值。
When a vehicle passes over a bump or a rough road, the impact torque on the steering wheel will be produced. Over large impact torque will bring unpleasant to the driver. The impact torque on the pinion gear is estimated based on the established dynamic model of Electric Power Steering （EPS）. Then, the compensation current of disturbance from the road wheels is determined by a control algorithm to reduce the impact torque on the steering wheel. The vehicle test results show that the control algorithm can effectively reduce the impact torque on the steering wheel without increasing elements of the EPS system and it has potential application value.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2013年第4期849-853,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
吉林省科技支撑计划项目(20106001)
国家自然科学基金项目(51105165)
关键词
车辆工程
电动助力转向
路面冲击
实车试验
vehicle engineering
electric power steering
disturbance from road wheels
vehicle test
