Invention Application
- Patent Title: ELECTRIC POWER STEERING SYSTEM
- Patent Title (中): 电力转向系统
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Application No.: US13501233Application Date: 2010-10-12
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Publication No.: US20120203430A1Publication Date: 2012-08-09
- Inventor: Yuichi Shimada , Kazuhiko Inaba , Taku Natsume , Masaya Kusatani , Masanori Takagi , Toshiharu Akashi , Kouji Nakamura , Akio Ueno
- Applicant: Yuichi Shimada , Kazuhiko Inaba , Taku Natsume , Masaya Kusatani , Masanori Takagi , Toshiharu Akashi , Kouji Nakamura , Akio Ueno
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2009-241002 20091020
- International Application: PCT/JP2010/006056 WO 20101012
- Main IPC: B62D6/02
- IPC: B62D6/02 ; B62D6/06 ; B62D6/04
Abstract:
Electric power steering system comprises an electric motor (9) for producing a steering assist force reducing a steering effort of a vehicle operator and a control unit (21) determining a control value for the electric motor, the control unit being configured to determine the control value by selecting a map representing a relationship between a vehicle state variable and a control value for each of a plurality of control modes. When switching control modes, the control unit gradually changes the control value from that obtained from a map corresponding to a preceding control mode to that of a following control mode. A different time period of gradual transition from the preceding control mode to the following control mode is selected depending on those control modes.
Information query
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