STEERING CONTROL DEVICE AND STEERING DEVICE

WIPO Patent Application WO/2022/209355

A1

In the present invention, a virtual rack end position is learned while the occurrence of appreciable impact and tapping sounds (abnormal noise) caused by end contact is minimized. This steering control device comprises: a command value calculation unit (40) that calculates an electric current command value for an actuator that imparts steering assist force to a steering mechanism; a terminal position learning unit (46) that learns the terminal position of the steering mechanism on the basis of the steering position of the steering mechanism as detected by a position detection unit; command value correction units (41, 49) that correct the electric current command value calculated by the command value calculation unit (40) when the steering position detected by the position detection unit is near the learned terminal position; and correction-amount-limiting units (51, 52) that limit the amount by which the electric current command value is corrected by the command value correction units (41, 49) on the basis of the result of a comparison between a prescribed position and the learned terminal position, and also on the basis of the result of a comparison between a prescribed length and the stroke length of the steering mechanism as calculated from the learned terminal position.

KITAZUME TETSUYA (JP)

PCT/JP2022/005617

October 06, 2022

February 14, 2022

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NSK LTD (JP)

B62D5/04; B62D6/00; B62D101/00; B62D113/00; B62D117/00; B62D119/00

WO2016104568A1

2016-06-30

JP2014058240A	2014-04-03
JP2019127185A	2019-08-01
JP2019104476A	2019-06-27

NAITOH Yoshiaki et al. (JP)

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