Invention Grant
- Patent Title: Electric power steering apparatus
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Application No.: US15556611Application Date: 2016-03-17
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Publication No.: US10011294B2Publication Date: 2018-07-03
- Inventor: Hirokazu Okamoto , Yusuke Fukuda , Hiroyuki Oiwa , Mitsuharu Minami
- Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD. , SUBARU CORPORATION
- Applicant Address: JP Hitachinaka-Shi JP Tokyo
- Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.,SUBARU CORPORATION
- Current Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.,SUBARU CORPORATION
- Current Assignee Address: JP Hitachinaka-Shi JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2015-064284 20150326
- International Application: PCT/JP2016/058421 WO 20160317
- International Announcement: WO2016/152694 WO 20160929
- Main IPC: B62D5/04
- IPC: B62D5/04 ; B62D3/12 ; F16H1/16

Abstract:
An electric power steering apparatus according to the present invention has a biasing member arranged to bias a rack retainer toward a rack bar, wherein a biasing force of the biasing member is set such that, in a two-axis coordinate system with a rotation amount of a steering wheel on a horizontal axis and a steering torque on a vertical axis, the steering torque increases with increase in the rotation amount of the steering wheel in a region before the start of relative movement of the rack bar and the rack retainer.
Public/Granted literature
- US20180043924A1 ELECTRIC POWER STEERING APPARATUS Public/Granted day:2018-02-15
Information query
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