Abstract: In order to transfer the subjective feeling of driving to the engineering end, and guide adaptive cruise control system performance development, the correlation between subjective and objective evaluation indicators of an adaptive cruise control system was studied. Through multiple subjective evaluation and repeated objective tests of 5 vehicles, the subjective indicator values and 23 objective indicator values are obtained. Partial least squares method was used for regression analysis of subjective and objective values, and three subjective and objective correspondence models were established in different scenarios. The coefficient of determination R2 of the three models are all above 0.9, and the relative error is within 2%. Ten key objective indicators with higher impact on subjective values were selected. It is found that in the case of no target vehicle, the subjective feelings of drivers are mainly from the vehicle power performance, braking performance and comfort performance. In the case of vehicle intervention, collision time is increased into the key objective indicators, and drivers' attention to safety is significantly enhanced.

Key words: Adaptive cruise control system; Subjective and objective correspondence; Partial least squares regression

摘要： 为了将驾乘主观感受传递到工程端，指导自适应巡航控制系统性能开发，对系统主客 观评价指标间的相关性进行了研究。文章通过对 5 辆车进行多人主观评价和重复客观试验， 得到主观评价指标评分和 23 项客观指标数值。采用偏最小二乘法对主客观数值进行回归分 析，建立 3 个对应于不同场景的主客观对应模型。3 个模型的拟合决定系数 R2 均大于 0.9，相 对误差在 2%以内，筛选出对主观评分影响较高的关键客观指标 10 项。发现在无目标车情况 下，驾乘人员主观感受主要来源于车辆动力性、制动性和舒适性；在有车辆介入情况下，关 键客观指标中增加碰撞时间，驾乘人员对于安全性的关注显著提升。

关键词: 自适应巡航控制系统；主客观对应；偏最小二乘回归