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汽车的转向特性是研究及评价一辆现代汽车的最重要特性之一。本文在分析已有资料的基础上,建立一个多自由度非线性的数学模型,编制了求解方向盘固定转角输入时的稳态响应及方向盘阶跃转角输入时的瞬态响应的程序,以用于分析某些汽车结构参数对汽车转向特性的影响。本文以北京吉普BJ-212A为例,测定该车的有关参数,计算了若干种改进设计方案的转向特性。其中一个方案的稳态响应计算结果用试验作了验证。
The steering characteristics of a car are one of the most important features for researching and evaluating a modern car. Based on the analysis of the existing data, a mathematical model of nonlinearity with multiple degrees of freedom is established. The program to solve the steady-state response of the steering wheel with fixed corner input and the transient response of steering wheel stepping angle input is prepared for Analysis of some automobile structural parameters on the steering characteristics of the car. In this paper, the Beijing Jeep BJ-212A is taken as an example, the relevant parameters of the vehicle are measured, and the steering characteristics of several improved designs are calculated. The steady-state response of one of the schemes is validated experimentally.