主动侧倾车辆设计与试验

Design and Test of Active Roll Vehicle

针对目前城市中存在的车辆交通拥堵、停车困难、污染排放大等问题,本文中提出一种适用于城市交通的窄型车辆侧倾方法,实时获取车辆行驶时转向盘转角信息与车速信息,计算车辆在保持稳定情况下所需侧倾角度,并在转向同时进行侧倾工作,可避免转向行驶过程中的车辆侧翻。本文中设计了一种采用新型侧倾机构的主动侧倾车辆,分析了车辆侧倾角度参数与侧倾执行策略,可通过该侧倾机构实现主动侧倾,并利用样机在户外道路上进行S形轨迹与O形轨迹转向试验验证。试验结果表明,主动侧倾样机在转向过程中横向加速度能减少95%,有效防止了车辆转向时由于离心力而产生的侧翻危险,验证了主动侧倾方法以及主动侧倾机构方案的可行性。

For the current problems of vehicle traffic jam,difficulty in parking,and heavy pollution emissions in cities,a narrow vehicle roll method suitable for urban traffic is proposed.The steering wheel angle information and vehicle speed information are obtained in real time while the vehicle is driving,and the required roll angle when the vehicle is stable is calculated and the roll is carried out while steering so as to prevent the vehicle from rollover in the process of steering.In this paper,an active roll vehicle using with a new roll mechanism is designed and the vehicle roll angle parameter and roll execution strategy are analyzed.The active roll can be realized through the roll mechanism.The prototype S-track and O-track steering tests are carried out on outdoor roads for verification.The test results show that the lateral acceleration of the active roll prototype can be reduced by 95%during the steering process,effectively preventing the rollover danger caused by the centrifugal force when the vehicle is turning,verifying the feasibility of the active roll method and active roll mechanism scheme.