Invention Grant
- Patent Title: Electric power steering device
- Patent Title (中): 电动助力转向装置
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Application No.: US14897236Application Date: 2014-06-04
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Publication No.: US09481392B2Publication Date: 2016-11-01
- Inventor: Hiroyuki Gotou , Kazuhiro Sasaki , Yuichiro Okamoto , Kazuma Yamazaki
- Applicant: KYB Corporation , FUJI HEAVY INDUSTRIES LTD.
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: KYB Corporation,FUJI HEAVY INDUSTRIES LTD.
- Current Assignee: KYB Corporation,FUJI HEAVY INDUSTRIES LTD.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Hauptman Ham, LLP
- Priority: JP2013-121622 20130610
- International Application: PCT/JP2014/064847 WO 20140604
- International Announcement: WO2014/199882 WO 20141218
- Main IPC: B62D5/04
- IPC: B62D5/04

Abstract:
An electric power steering device includes a basic return command value calculation unit configured to calculate a basic return command value in a direction returning the steering wheel to a neutral position, on the basis of detection results of a steering angle detector detecting a steering angle of the steering wheel, a first correction gain calculation unit configured to calculate a first correction gain correcting the basic return command value, on the basis of detection results of a vehicle speed detector detecting vehicle speed, and a second correction gain calculation unit configured to calculate a second correction gain correcting the basic return command value, on the basis of a change amount of the steering torque detected by the torque sensor. The basic return command value is corrected by the first and second correction gains so as to calculate a return command value. The return command value is added to the assist command value so as to drive the electric motor.
Public/Granted literature
- US20160144889A1 ELECTRIC POWER STEERING DEVICE Public/Granted day:2016-05-26
Information query
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