| Research on the Variable Steering Ratioof Four-Wheel-Steering Vehicle |
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| 作者姓名： | 林程 陈思忠 任良成 |
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| 作者单位： | School of Vechicle and Transportation Engineering，School of Vechicle and Transportation Engineering，School of Vechicle and Transportation Engineering Beijing Institute of Technology，Beijing 100081，China，Beijing Institute of Technology，Beijing 100081，China，Beijing Institute of Technology，Beijing 100081，China |
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| 摘 要： | The steering characteristic of afour-wheel-steering vehicle is numerically simulated for in-depth research of the handling stability offour-wheel steering．The research results show that the deteriorating tendency of the steering stability due to the increase of the vehicle speed is improved obviously in the case of four-wheel steering．The approach of variable steering ratio is discussed.The use of the variable steering ratio can not only raise the steering stability of vechicles at high vehicle speed，but also reduce the dicomfort and steering burden of drivers；and hence is helpful for the subjective evaluation of four-wheel steering vehicles．
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| 关 键 词： | 四轮驾驶技术 车辆动力学 操作稳定性 数值模拟 安全性能 优化控制 |
Research on the Variable Steering Ratio of Four-Wheel-Steering Vehicle |
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| Lin Cheng Chen Sizhong Ren Liangcheng School of Vechicle and Transportation Engineering,Beijing Institute of Technology,Beijing ,China.Research on the Variable Steering Ratioof Four-Wheel-Steering Vehicle[J].Journal of Southwest Jiaotong University,2004,12(1):29-35. |
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| Authors: | Lin Cheng Chen Sizhong Ren Liangcheng School of Vechicle and Transportation Engineering Beijing Institute of Technology Beijing China |
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| Institution: | School of Vechicle and Transportation Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The steering characteristic of a four-wheel-steering vehicle is numerically simulated for in-depth research of the handling stability of four-wheel steering. The research results show that the deteriorating tendency of the steering stability due to the increase of the vehicle speed is improved obviously in the case of four-wheel steering. The approach of variable steering ratio is discussed. The use of the variable steering ratio can not only raise the steering stability of vechicles at high vehicle speed, but also reduce the dicomfort and steering burden of drivers; and hence is helpful for the subjective evaluation of four-wheel steering vehicles. |
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| Keywords: | Four-wheel steering Handling stability Vehicle dynamics |
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