Analysis on driving stability of micro-vehicle based on human-seat dynamics system Online publication date: Mon, 20-May-2019
by Hongyu Shu; Shuang Luo; Zejie Yao
International Journal of Vehicle Design (IJVD), Vol. 77, No. 4, 2018
Abstract: To study the influence of dynamics interaction between a driver and a micro-vehicle on the driving stability, the driver was modelled as a rigid body and elastically connected to the vehicle. A 5-DOF (degree of freedom) mathematical model was presented for the driver micro-vehicle system. Afterwards, a vibration test was conducted and a corresponding vibration model was developed for the human-seat system, based on which the biomechanical parameters at human-seat interface were obtained. Eventually, the mathematical model was computed by Matlab in line with those parameters. Influences of the dynamics interaction on the roll and yaw characteristics of the micro-vehicles were analysed. According to the research results, the dynamics interaction prolongs the response time; meanwhile, it increases the overshoot and steady-state value of roll angle, and generates less understeer. With the decrease in curb weight of the micro-vehicles, the influences will be more significant.
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