| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steering reaction force control device for steer-by-wire which ensures a good response when a steering wheel is started to turn from a neutral position, and makes the return position when hands are taken off the steering wheel the neutral position to the extent possible while preventing vibration around the neutral position. <P>SOLUTION: A steering angle sensor 5 and a steering reaction force motor 4 are provided for a steering wheel 3 which is not mechanically coupled to an inter-tie-rod shaft 2. A steering control means 12 controls a turning motor 7 of a turning mechanism 6 for driving the inter-tie-rod shaft 2 on the basis of the steering angle. The steering control means 12 is provided with a steering reaction force control unit 14 which determines forward input when the steering direction and the direction of turning reaction force are different, determines reverse input when both the directions are the same direction, and controls the steering reaction force of the steering reaction force motor 4 according to the forward or reverse input. <P>COPYRIGHT: (C)2012,JPO&INPIT |
