发明授权
- 专利标题: Electric power steering device
- 专利标题(中): 电动助力转向装置
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申请号: US12293140申请日: 2007-03-08
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公开(公告)号: US07828112B2公开(公告)日: 2010-11-09
- 发明人: Isao Kezobo , Noriyuki Inoue , Chiaki Fujimoto , Takayuki Kifuku , Masahiro Kimata , Kazumichi Tsutsumi
- 申请人: Isao Kezobo , Noriyuki Inoue , Chiaki Fujimoto , Takayuki Kifuku , Masahiro Kimata , Kazumichi Tsutsumi
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2006-146390 20060526
- 国际申请: PCT/JP2007/054516 WO 20070308
- 国际公布: WO2007/138772 WO 20071206
- 主分类号: B62D5/04
- IPC分类号: B62D5/04
摘要:
An electric power steering apparatus in which, when an abnormality is generated in an electric power steering apparatus, an assist is reduced smaller than normal when a steering burden is estimated to be small; and the assist can be increased to normal and the steering burden can be sufficiently reduced when the steering burden is estimated to be large. When an abnormality is detected, an assist command is set smaller than at a normal time when there is no abnormality in a first range where the steering burden estimated by the steering burden estimation unit is small; the assist command is increased to that at a normal time in a second range where the steering burden estimated by the steering burden estimation unit is larger than the first range; and an assist torque of a motor is controlled in response to the assist command at the abnormal time.
公开/授权文献
- US20090084616A1 ELECTRIC POWER STEERING DEVICE 公开/授权日:2009-04-02