Toward Trustworthy and Comfortable Lane Keeping Assistance System: An Empirical Study of the Level of Haptic Authority

ABSTRACT

A shared control system has received steady attention as it can mitigate or avoid potential weaknesses of autonomous driving. According to the preliminary study, the drivers’ experience was found to change significantly depending on the system’s intervention strategy. In particular, driver satisfaction was found to decrease significantly due to the feeling of disturbance or interference. In this study, a strategy was suggested to adjust the haptic authority according to human torque to minimize the feeling of disturbance. Twelve control strategies were designed as a prototype to investigate their effects on the driver’s experience. As a result, a positive effect on the driving experience was observed by providing adequate torque reduction. Based on the regression model of satisfaction, optimal design parameters were derived. The results of this study are expected to contribute to designing more favorable control strategy of a shared steering control system.

Acknowledgments

This research was supported by the MSIT (Ministry of Science and ICT), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2018-0-0144) supervised by the IITP (Institute for Information & communications Technology Planning & Evaluation). This research was supported by the MIST (Ministry of Science and ICT), under the National Program for Excellence in SW (2017-0-00096), supervised by the IITP (Institute for Information & communications Technology Planning & Evaluation).

Notes

1. Note that the numerator is from the degree of freedom (df) of RED and the denominator is from within-subject error for the factor of RED.

2. Note that the numerator is from the df of ROC and the denominator is from subject error × df of ROC.

3. Note that the numerator is from the df of RED and the denominator is from subject error × df of RED.

4. Note that the numerator is from the df of gender and the denominator is from between subject error.

Additional information

Notes on contributors

Kyudong Park

Kyudong Park is an assistant professor in the School of Information Convergence at KwangWoon University, Republic of Korea. He received the PhD in Human-Computer Interaction and User Experience from POSTECH. His research interests include human-AI interaction, human-centered computing, digital equity, automotive ergonomics, natural user interface, and VR/AR.

Sung H. Han

Sung H. Han is a professor at POSTECH, Republic of Korea and directing the Experience Design and Engineering Laboratory. He received the PhD from Virginia Polytechnic Institute and State University. His research interests include human-computer interaction, usability engineering, affective product design, intelligent/adaptive user interfaces, and mobile and telematics user interfaces.

Jiyoung Kwahk

Jiyoung Kwahk is an industry-academia collaboration professor at POSTECH, Republic of Korea, where she received the PhD in Human-Computer Interaction. She is experienced in leading creative projects on smart devices and services for consumer and enterprise uses. Her recent research interests include smart devices, cars, buildings, cities, and beyond.