Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2007-06-06
2010-12-07
Boehler, Anne Marie M (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S407000, C318S400020
Reexamination Certificate
active
07845459
ABSTRACT:
An electric power steering apparatus includes an electric power supply device that includes a main electric power unit that supplies high-tension electric power and a sub-electric power supply unit that supplies low-tension electric power, the main electric power unit and the sub-electric power supply unit being connected to each other in parallel, and that supplies electric power to the electric motor from one of the main electric power supply unit and the sub-electric power supply unit. An assist ECU calculates a correction coefficient based on which a d-axis target current increases with a decrease in voltage output from the electric power supply device, and calculates a final corrected d-axis target current by multiplying the d-axis target current by the correction coefficient.
REFERENCES:
patent: 5780980 (1998-07-01), Naito
patent: 6727669 (2004-04-01), Suzuki et al.
patent: 6992448 (2006-01-01), Fujimoto et al.
patent: 7102305 (2006-09-01), Suzuki
patent: 7102314 (2006-09-01), Hayashi
patent: 7176646 (2007-02-01), Iwazawa
patent: 7215034 (2007-05-01), Hino et al.
patent: 7227332 (2007-06-01), Suzuki et al.
patent: 7304444 (2007-12-01), Takano et al.
patent: 7694777 (2010-04-01), Yamashita et al.
patent: 2004/0217729 (2004-11-01), Recker
patent: 198 07 024 (1998-08-01), None
patent: 9-20263 (1997-01-01), None
patent: 2000 184766 (2000-06-01), None
patent: 2000 236626 (2000-08-01), None
patent: 2001-18822 (2001-01-01), None
patent: 2001-161099 (2001-06-01), None
patent: 2002-218799 (2002-08-01), None
patent: 2004 166441 (2004-06-01), None
patent: 2006-117142 (2006-05-01), None
patent: 2007-131075 (2007-05-01), None
patent: 2007-131076 (2007-05-01), None
Boehler Anne Marie M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
Yeagley Daniel
LandOfFree
Electric power steering apparatus and method for controlling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric power steering apparatus and method for controlling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric power steering apparatus and method for controlling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4168952