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  • Optimization design of vehicle yaw rate gain for steer-by-wire

    • 摘要：

      In order to study the variable steering ratio design of Steer-By-Wire (SBR) system, vehicle dynamic model and driver were built. A steady state control strategy for the steering ratio was designed to keep the vehicle yaw rate gain a constant. Under typical vehicle speed, the vehicle yaw rate gain was optimized by genetic algorithm and the steering ratio of SBW system was calculated. The optimization is based on driver-vehicle close-loop, and adopts comprehensive evaluation indexes of vehicle handling and stability, which include lateral trace error index, driver burden index, rollover rate index and slip rate index of vehicle gravity center. Test results show that the proposed control strategy can effectively improve the vehicle maneuverability and reduce the driver burden.

    • 作者：

      Hong Yu Zheng;骏 李;Chang Fu Zong;Kun Yuan;Jing Che Zhao;Jia Feng Hou

    • 刊名：

      Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)

    • 在线出版时间：

      2012-1