Steering Feedback Perception of Average Drivers 2018-01-5015
Electromechanical steering systems (EPS) provide assisting steering force through
an electric motor, often paired with a screw drive. The combination of an
electric motor and a screw drive lead to high inertia and thus to a reduced
feedback of tire force behavior at the steering wheel. This force behavior
contains information about driving conditions and road surface. However, the
electric motor can be used to actively enhance and manipulate steering feedback.
This article describes the driver perception of modified steering feedback. The
presented data is collected carrying out a driving simulator study with average
drivers as test subjects. In this study the driver experiences a modified
steering feedback at a change of road friction coefficient. Based on the test
subjects ratings the perception, acceptance and controllability of the presented
steering feedback modifications are assessed. Aim of this article is to present
the objectivization of subjective ratings and to describe the applicability of
modified steering feedback.