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Research on Control Algorithm for Active Front Steering System
| 题名： | Research on Control Algorithm for Active Front Steering System |
| 正文语种： | 中文 |
| 作者： | Zhang Bangcheng Zheng Shunhang Li Shaosong Cui Gaojian Yu Zhixin Lu Xiaohui Sheng Ren |
| 作者单位： | of Mechanical and Electrical Engineering, Changchun University of Technology;Automotive Engineering Research Institute, Changchun University of Technology of Mechanical and Electrical Engineering, Changchun University of Technology |
| 关键词： | vehicle dynamic control active front steering system variable steering ratio sliding mode control |
| 摘要： | Active front steering system can effectively improve vehicle handling and stability by changing the angular displacement characteristics of the steering system. In this paper, a control strategy of variable steering ratio is proposed to keep steering gain constant based on curve fitting. And the designed variable steering ratio is further smoothly processed based on the sigmoid fitting curve. To resist crosswind disturbance, using the error between the current yaw rate and the target yaw rate as the control value, a sliding mode variable structure controller is designed and the chattering problem existing in the sliding mode controller is also handled. The results show that the active front steering vehicle with the proposed control strategy has fine dynamic steering characteristic and can provide greater vehicle sta- bility. |
| 会议日期： | 20171024 |
| 会议举办地点： | 上海 |
| 会议名称： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会 |
| 出版日期： | 1024-01-20 |
| 母体文献： | 第19届亚太汽车工程年会暨2017中国汽车工程学会年会论文集 |
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