新能源汽车主动四轮转向稳定性控制技术  

Active Four-wheel Steering Stability Control Technology for New Energy Vehicles

作　　者：吴昊[1] WU Hao(School of Automotive Engineering,Xi’an Aeronautical Polytechnic Institute,Xi’an 710089,China)

机构地区：[1]西安航空职业技术学院汽车工程学院,陕西西安710089

出　　处：《机械与电子》2023年第2期37-40,共4页Machinery & Electronics

摘　　要：针对无法在不同环境下改变控制规则,导致对汽车控制时获得的横摆角速度、质心侧偏角、车轮转角与理想模型偏差大,车身侧倾角大,存在控制性能差的问题,提出新能源汽车主动四轮转向系统稳定性控制方法。构建了汽车横向动力学模型、垂直运动模型、运动状态方程以及路面输入模型,设计了自适应模糊控制器,将可调因子引入自适应模糊控制器中,使控制器可以适用于不同环境,完成新能源汽车主动四轮转向系统的稳定性控制。实验结果表明,所提方法应用后,可实现汽车主动四轮转向系统稳定性控制。Aiming at the problems that the control rules cannot be changed in different environments, resulting in large deviation between the yaw rate, center of mass yaw angle, wheel angle and the ideal model, large body roll angle and poor control performance, a stability control method of active four-wheel steering system of new energy vehicles is proposed.The vehicle lateral dynamics model, vertical motion model, motion state equation and road input model are constructed, and the adaptive fuzzy controller is designed.The adjustable factor is introduced into the adaptive fuzzy controller, so that the controller can be applied to different environments to complete the stability control of the active four-wheel steering system of new energy vehicles.The experimental results show that after the application of the proposed method, the stability control of the active four-wheel steering system of vehicles can be realized.

关 键 词：新能源汽车 主动四轮转向系统 动力学模型 自适应模糊控制器 稳定性控制 

分 类 号：U467.1[机械工程—车辆工程]