Driver visual load and operating characteristics under a human- machine interface mode with full-touch-screen

doi:10.3969/j.issn.1674-8484.2023.04.004

Abstract

Abstract:

Two real road driving experimental platforms, the one with full-touch-screen Human-Machine Interface (HMI) and the other with non-full touch-screen HMI, were established to analyze the potential impact of an HMI mode with full-touch-screen on driving risk. And collected and analyzed the data on driver’s sight transfer and on hand transfer during drivers completing the same secondary task using different HMI. The results show that the total time of staring at the central control platform increases by 19.8%, 102.5%, and 39.1% compared to the traditional mode respectively, when using a full-touch-screen to perform secondary tasks such as turning on the air conditioning, adjusting the air volume, and blowing the front windshield; There is an exponential increasing relationship between the total time required to focus on the central control platform and the operation number required to complete the secondary tasks; Drivers spend more gaze time on each operation when using a full-touch-screen to perform the secondary tasks with more than 3.5 operations. These results provide a reference for the distraction evaluation of full-touch-screen HMI.

Key words: vehicle active safety, driving safety, driving distraction, human-machine interface (HMI), full touch screen, visual load

CLC Number:

U491

WANG Chang, WANG Yifei, GE Zhenzhen, ZHAO Xia, LI Zhao. Driver visual load and operating characteristics under a human- machine interface mode with full-touch-screen[J]. Journal of Automotive Safety and Energy, 2023, 14(4): 431-438.

Figures/Tables 10

References 12

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简称	次级任务	传统车操作	全触屏车操作
开空调	开空调，调至18 ℃	用按键，打开空调，调节旋钮至18 ℃。	点击空调图标，连续点击“+”至18 ℃。
调风量	用空调吹前挡风玻璃	按前风挡除雾按键。	点击前风挡除雾图标。
吹玻璃	调高出风量2个挡位	连续按出风量按键2次。	点击出风量图标—调高图标，点击2次。
简单电话	给某某打电话	拿起手机，点击通话图标—联系人图标—联系人某某，点击拨打电话，放下手机。	点击通话图标—联系人图标—联系人某某。
复杂电话	给王某打电话	拿起手机，点击通话图标—联系人图标，下滑列表，点击联系人“王某”—拨打电话，放下手机。	点击通话图标—联系人图标，下滑列表，点击联系人“王某”。
导航	导航至最近加油站	点击手机导航图标—搜索框，输入文字，选定文字，点击第一条搜索结果，点击开始导航。	点击导航图标—搜索框，输入文字，选定文字，点击第一条搜索结果，点击开始导航。

简称	次级任务	传统车操作	全触屏车操作
开空调	开空调，调至18 ℃	用按键，打开空调，调节旋钮至18 ℃。	点击空调图标，连续点击“+”至18 ℃。
调风量	用空调吹前挡风玻璃	按前风挡除雾按键。	点击前风挡除雾图标。
吹玻璃	调高出风量2个挡位	连续按出风量按键2次。	点击出风量图标—调高图标，点击2次。
简单电话	给某某打电话	拿起手机，点击通话图标—联系人图标—联系人某某，点击拨打电话，放下手机。	点击通话图标—联系人图标—联系人某某。
复杂电话	给王某打电话	拿起手机，点击通话图标—联系人图标，下滑列表，点击联系人“王某”—拨打电话，放下手机。	点击通话图标—联系人图标，下滑列表，点击联系人“王某”。
导航	导航至最近加油站	点击手机导航图标—搜索框，输入文字，选定文字，点击第一条搜索结果，点击开始导航。	点击导航图标—搜索框，输入文字，选定文字，点击第一条搜索结果，点击开始导航。

检验指标	含意	p
STG	单次注视持续时间	0.000
TTG	注视总时间	0.000
PVRO	视觉资源占用率	0.001
PORO	操作资源占用率	0.000

检验指标	含意	p
STG	单次注视持续时间	0.000
TTG	注视总时间	0.000
PVRO	视觉资源占用率	0.001
PORO	操作资源占用率	0.000

次级任务	N
次级任务	传统车	全触屏车
吹玻璃	1	1
调风量	2	3
开空调	3	4
简单电话	5	3
复杂电话	7	6
导航	8	8