【摘要】 本文中提出了一种适用于在测功试验台上进行的多轴车辆转向行驶模拟方法,提出了一种由行驶模型、转向模型和转向控制策略3部分组成的车辆模型。首先根据车辆的行驶情况,通过车辆转向控制策略和转向模型获得当前时刻的多轴车辆各轴转向角与车辆的转向状态。然后通过车辆行驶模型计算得到多轴车辆各轴当前时刻的运动状态。最后通过测功机对车辆各驱动轴进行加载,并采用电惯量模拟技术对系统不足的惯量进行补偿,使测功系统中各轴的运动状态跟随模型计算结果而变化,以实现在测功试验台上的多轴车辆转向行驶模拟。一辆多轴车辆在等速转向、加速转向、减速转向等行驶状态下进行仿真的结果,初步验证了该方法的可行性。更多还原

【Abstract】 In this paper,a multi-axle vehicle steering driving simulation method suitable for dynamometer test bench is put forward and a vehicle model is proposed consisting of driving model,steering model and steering control strategy.Firstly,according to vehicle driving situation,the current steering angle of each axle and steering states of multi-axle vehicle are obtained based on steering control strategy and steering model.Then the current movement state of each axle of vehicle is obtained by the calculation with vehicle driving model.Finally,each driving axle of vehicle is loaded through dynamometer and the inadequate moment of inertia of the system is compensated with electrical inertia simulation technique,so as to make the movement state of each axle in the system follows that of model calculation result,realizing the steering driving simulation of multi-axle vehicle on dynamometer.The results of simulation on a multi-axle vehicle in three states of steering with constant speed,steering with acceleration and steering with deceleration preliminarily verify the feasibility of the method proposed.更多还原