Motor vehicles – Steering gear – No mechanical connection between steering shaft and steering...
Reexamination Certificate
2007-10-02
2007-10-02
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering gear
No mechanical connection between steering shaft and steering...
C180S446000, C180S444000, C180S442000, C701S041000, C701S042000
Reexamination Certificate
active
10529038
ABSTRACT:
In an electrical power steering apparatus, steering shaft reaction torque is estimated by a steering shaft reaction torque estimation unit, and a reference road reaction torque is estimated by a reference road reaction torque estimation unit. The estimated steering shaft reaction torque and the reference road reaction torque are weighted, and, in response, a target steering reaction torque is set by a target steering reaction torque generation unit, hysteresis width and slope of the target steering reaction torque are respectively adjusted, and steering feeling is thereby easily improved.
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Endo Masaya
Inoue Noriyuki
Kurishige Masahiko
Satake Toshihide
Arce-Diaz Marlon
Leydig , Voit & Mayer, Ltd.
Mitsubishi Denki & Kabushiki Kaisha
Morris Lesley D.
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