Drivers who took over driving from an automated driving car found a possibility of mistaking the steering wheel operation

ByJay Parker

It is an autonomous vehicle (automatic driving car) that is being developed for practical application in 2020, but problems to be solved seem to be clarified as research progresses. When the vehicle switches from the automatic driving mode to the manual driving due to the road conditions and the like, it is known that the driver of the driver who took over the driving can not properly hold the feeling of the steering wheel and the possibility that the appropriate steering wheel operation can not be performed I will.

Taking back control of an autonomous car affects human steering behavior, Stanford Research shows
http://news.stanford.edu/press/view/11665

New study: Humans may falter when taking control of self-driving cars | Popular Science
http://www.popsci.com/new-study-humans-may-falter-when-taking-back-control-self-driving-cars

This research was conducted by a team of experts from several fields belonging to Stanford University. In the experiment, 22 drivers were driving a special experimental vehicle and recorded the reaction when switching from automatic operation to manual operation.

What was used for the experiment is an original vehicle equipped with a certain automatic driving function, and it is possible to freely switch between automatic operation and manual operation. Also, it is the point that the sensitivity of steering wheel operation can be changed. Even if the handle is rotated by the same angle, the effect of the actual handle can be strengthened and it is possible to simulate a state running at a speed faster than the actual speed.


In the experiment, each driver was made to run a course of about 15 seconds of running time, and made straight running and lane change. Next, I repeated the cycle of turning on the automatic operation mode of the vehicle and automatically returning to the first start position four times. And, in addition, this time 10 times running with the sensitivity of the steering wheel changed, let the experience of the steering wheel break by speed. As a result, the driver grasps the effectiveness of the steering wheel of the vehicle and learns to the body that "When the speed is fast, cut the steering wheel slowly".

And from here, we will conduct the experiment of the most important "takeover from automatic operation". In experiments, it is explained to the driver that the sensitivity of the steering wheel will be changed in advance, and it is explained that it is not a situation that is not suddenly injured. The driver first ran the same course in the automatic driving mode, and took over the driving from there and changed the lane. Then, most drivers fell into the state of "steering wheel overruns", and I know that the steering wheel was corrected.

Regarding this result, Lene Harbott of Stanford University, one of the co-authors of the paper, said, "Although we were informed about changes in the handle characteristics in advance and it was possible to forecast in advance about differences in driving operations, Each driver performed a completely different handle operation than usual, and it was a bad driving. " After that, the participants subsequently repeated the cycle of performing the same operation with the steering wheel set in the original condition and returning to the start line by automatic operation, but it took some time to reach this state He said that he did. This means that it takes time only to regain the feeling once misleaded, even though it only reproduced the original state.

ByEric Chu

From this experiment it can be said that when a person who left driving to an automatic driving car is facing a situation where it must return to operation, there is a possibility that it can not respond well to the difference in handle characteristics caused by the difference in speed, in particular It is understanding. In particular, there are cases where a high judgment is required for situations where an automated driving car leaves driving to the driver, but if it is said that there is a difference in the sense of steering wheel operation, handover of driving is not easy There is a possibility of becoming things.

The difference in reaction in such a situation where most drivers have never experienced is considered to be more clear from now. Mr. Harbott, said, "This is a tip of the iceberg," indicating a way of thinking.

ByBenjamin Vander Steen