关键词: 操纵稳定性, 人—车闭环系统, 虚拟样机, 序关系, 指标权重, 综合评价

Abstract: According to the insufficiency of subjective valuating with index weight as one, a new way is presented to decide index weights for comprehensive evaluation of human-vehicle closed-loop system for handling stability. In this way, the sequence rule relationship among indicators is introduced, which well reflects the relationship among such indicators, and upgrades the whole evaluation system. Based on this new method, the general evaluation process of virtual prototype technology is presented, comprehensive evaluation theory is practiced on the virtual prototype software ADAMS, the handling stability of a car is evaluated, and such comprehensive evaluation method is elementarily implemented in the engineering. And the influence of the road adhesion coefficient and the reaction of the driver are both considered in the study of the comprehensive evaluation indicator, the variation regularity of each single indicator and comprehensive evaluation indicator with the variation of speed on both earth road and asphaltic road is analyzed, and the best comprehensive evaluation index is acquired with the perfect speed range of the car. Result shows that such approach is feasible, simple, effective, propagatable and directly reflects vehicle handling stability. Such approach can also offer reference for the evaluation analysis, design of vehicle handling stability, and a safety guideline for vehicle driving.

Key words: Comprehensive evaluation, Handling stability, Human-vehicle closed-loop system, Index weights, Order relations, Virtual prototype