Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2006-10-31
2006-10-31
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S443000, C318S432000, C318S433000, C701S041000
Reexamination Certificate
active
07128184
ABSTRACT:
A motor-driven power steering control apparatus assuring consistently comfortable steering operation of a motor vehicle includes a steering state detecting (10), a motor drive command value arithmetic device (20), a trouble detector (40), a motor drive command value corrector (51, 52) for decrementing a motor drive command value outputted from the motor drive command value corrector (51) from a predetermined initial value as a function of time lapse when a trouble detection signal is outputted from the trouble detector (40), and an element (30) for driving an assist motor in conformance with the output of the motor drive command value corrector (51, 52). The motor drive command value corrector (51, 52) includes a low-pass filter (515) for smoothing the motor drive command value. A value acquired through the low-pass filter (515) is employed as the predetermined initial value.
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A Safety Evaluation for an Electric Power Steering System (Mitsubishi Electric Corp). By Society of Automotive Engineers of Japan Inc. Compendium of technical manuscripts No. 4-02.
Fujimoto Chiaki
Inoue Noriyuki
Kurishige Masahiko
Satake Toshihide
Tsutsumi Kazumichi
Mitsubishi Denki Kabushiki Kasiha
Morris Lesley D.
Yeagley Daniel
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