Invention Grant
- Patent Title: Electric power steering apparatus and method of assembling the same
- Patent Title (中): 电动助力转向装置及其组装方法
-
Application No.: US12296657Application Date: 2007-04-11
-
Publication No.: US08102138B2Publication Date: 2012-01-24
- Inventor: Takaaki Sekine , Atsushi Ooshima , Tetsuya Kodama , Seiichi Kobayashi , Yasuhiro Shimizu , Naoki Hyoudou , Shigeru Endo , Atsushi Horikoshi , Keiji Kashimoto , Tamotsu Oumi , Hideaki Kawada , Shigeo Shinohara , Takeshi Senba , Mitsuo Shimoda
- Applicant: Takaaki Sekine , Atsushi Ooshima , Tetsuya Kodama , Seiichi Kobayashi , Yasuhiro Shimizu , Naoki Hyoudou , Shigeru Endo , Atsushi Horikoshi , Keiji Kashimoto , Tamotsu Oumi , Hideaki Kawada , Shigeo Shinohara , Takeshi Senba , Mitsuo Shimoda
- Applicant Address: JP Tokyo
- Assignee: NSK Ltd.
- Current Assignee: NSK Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2006-109135 20060411; JP2006-109136 20060411; JP2006-208954 20060731; JP2007-025775 20070205; JP2007-086894 20070329; JP2007-092116 20070330; JP2007-100743 20070406
- International Application: PCT/JP2007/058007 WO 20070411
- International Announcement: WO2007/119757 WO 20071025
- Main IPC: G05D15/00
- IPC: G05D15/00

Abstract:
A motor control apparatus includes a steering column having inserted therein a steering shaft to which steering torque is transmitted, a reduction gear box coupled to the steering shaft, and an electric motor that transmits a steering assisting force to the steering shaft via a reduction mechanism in the reduction gear box. The electric motor and its control unit including a control board mounted with a control circuit, are provided side by side in the reduction gear box. A connection terminal of the electric motor is electrically connected to the control unit directly. This minimizes a connection distance between the control unit and the electric motor.
Public/Granted literature
- US20090295325A1 Electric Power Steering Apparatus and Method of Assembling the Same Public/Granted day:2009-12-03
Information query