摘要
为解决传统转向系统"轻"与"灵"的矛盾,文章在线控转向系统平台上分析了横摆角速度与操纵稳定性的关系以及转向盘转角和车速对传动比的影响。在兼顾操纵稳定性和转向特性的同时,提出以横摆角速度为系统状态识别变量的模糊变传动比控制,设计了模糊变传动比控制器。经过仿真分析,得到较理想的特性曲线。该控制策略具有较强的创新性、应用性和参考性。
In order to solve the problem of light and flexible in the traditional steering system, this paper analyzes the relations between the yaw velocity and the control stability as well as the influence of steering-wheel angle and vehicle speed to the transmission ratio in the platform of by-wire steering system. Consideration to control stability and steering performance, the yaw velocity as the system state to distinguish the fuzzy variable transmission ratio control is proposed. The fuzzy variable transmission ratio controller is designed. Through simulation analysis, an ideal characteristic curve is gained. This control strategy has great creativity and usability, and it can provide a useful reference.
出处
《汽车工程师》
2011年第8期49-51,55,共4页
Automotive Engineer
关键词
横摆角速度
操纵稳定性
模糊变传动比
Yaw velocity
Control stability
Fuzzy variable transmission ratio
