关键词: 车辆工程; 全触屏；空调操作模式；城市道路工况；单因素方差分析；线性拟合

Abstract: In view of the potential risks brought by the operation of the full touch screen air conditioner in the driving process, two types of driving experiment platforms, that is full touch screen and traditional human-machine interaction, was designed and established, with the typical urban road conditions as the object. The human-vehicle system data of 19 subjects during the air-conditioner operation process under the conditions of 40km/h and 60km/h were collected. The data were analyzed by one-way ANOVA and linear fitting. The results show that: compared with the button type, the total task duration (TTD) of the touch screen type is longer; the proportion of the single gaze duration (SGD) greater than 1.5s increases by about 20%, and the risk of vehicle operation is greater; the standard deviation of steering wheel angle (SDSWA) is smaller, which is close to 0. The single hand operation duration (SHOD) is proportional to the number of subtask steps. With the increase of vehicle speed, the proportion of the single gaze duration (SGD) of the subtasks in the button mode that is greater than 1.5s decreases by about 10%, and the risk of vehicle operation is reduced. There are no significant changes in the mean data of total task duration (TTD), the single gaze duration (SGD) and the single hand operation duration (SHOD). Therefore, with the popularization of full touch screen interactive interfaces today, the buttons for handling air-conditioner operation tasks should be retained, and the button layout or pressing effect should be optimized.

Key words: vehicle engineering; full touch screen; air-conditioner operation mode; urban road conditions; one-way ANOVA; linear fitting