Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2007-03-08
2010-11-09
Morris, Lesley (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S443000
Reexamination Certificate
active
07828112
ABSTRACT:
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.
REFERENCES:
patent: 2006/0070794 (2006-04-01), Fujita et al.
patent: 2006/0090952 (2006-05-01), Ito
patent: 2007/0199764 (2007-08-01), Kifuku et al.
patent: 2008/0066994 (2008-03-01), Fujita et al.
patent: 2008/0196966 (2008-08-01), Maruyama et al.
patent: 2009/0032327 (2009-02-01), Yasuda
patent: 2009/0069979 (2009-03-01), Yamashita et al.
patent: 2009/0250289 (2009-10-01), Kifuku
patent: 6 127412 (1994-05-01), None
patent: 10 181617 (1998-07-01), None
patent: 2003 26020 (2003-01-01), None
patent: 2003 170857 (2003-06-01), None
patent: 2006-7860 (2006-01-01), None
patent: 2006-123827 (2006-05-01), None
patent: 2006 143106 (2006-06-01), None
Fujimoto Chiaki
Inoue Noriyuki
Kezobo Isao
Kifuku Takayuki
Kimata Masahiro
Adams Tashiana
Mitsubishi Electric Corporation
Morris Lesley
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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