Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 27, 2024 - November 29, 2024
This study focuses on the shape of the control interface and the direction of operation, specifically examining a bar- shaped control system (hereafter referred to as the "bar handle"). In the case of the bar handle, even when the gear ratio (steering angle/front wheel steering angle) is set to 1 (steering angle = front wheel steering angle), sensitive responses are less likely to occur. Additionally, it has been observed that even drivers with little experience can operate the vehicle without practice. It is hypothesized that intuitive operation is achieved because the bar handle can be steered in the direction of the target. Kitahara et al. have reported improvements in mental comfort and control performance du ring driving using an experimental vehicle equipped with a bar handle. Their findings show that ease of driving varies depending on the shape of the control interface, even for the same driver, though the underlying mechanism remains unclear. This research aims to explore the mechanism behind the improved ease of driving by investigating it through a driver model. As the first step, steering behavior during trajectory tracking is decomposed into feedforward and feedback components, and the ratio of these components is evaluated to examine how the driver model changes depending on the shape of the control interface and the direction of operation.
