In 1986 NSK put the EPS for battery fork into practical use. In the subsequent 8 years Koyo Seiko (current JTEKT), NSK developed a column system exclusively for minicars, sold only in Japan such as Suzuki and Mitsubishi Motors. However, this simple method was noticeable due to the inertia feeling of the motor at the time of rapid steering for danger avoidance in low speed running, at the time of high speed running at which the steering force became small, returning to the manual steering. As a result, that system was not adopted. In the late 1990s, a direct full control system of a rack assist without clutch to a regular car was put into practical use in the Honda NSX (initially, automatic only) Since then, there has been a transition from a brush-attached motor to a brushless motor in the rack type of ordinary vehicles and this method has become mainstream.