Motor vehicles – Steering gear – No mechanical connection between steering shaft and steering...
Reexamination Certificate
2005-08-16
2005-08-16
Winner, Tony (Department: 3611)
Motor vehicles
Steering gear
No mechanical connection between steering shaft and steering...
C180S444000, C180S446000
Reexamination Certificate
active
06929085
ABSTRACT:
A steering apparatus for a vehicle includes an operating lever, an operating amount sensor that detects the operating amount of the operating lever, an operating reaction force motor that imparts an operating reaction force to the operating lever, a steering mechanism section that steers a steered wheel of a vehicle, a rack position sensor that detects the steered amount of the steered wheel, an operating torque sensor that detects an operating torque, and a control device that determines the control amount for the operating reaction force motor and the control amount for the steering mechanism section in accordance with a deviation between the above operating amount and the above steered amount. The control device includes a feedforward control device that feedforward-controls the steering mechanism section in accordance with the operating torque, and a band-pass filter that increases or decreases the feedforward effect in accordance with the operating frequency. By adjusting the feedforward effect with the band-pass filter in accordance with the operating frequency of the operating element, the responsiveness can be adjusted.
REFERENCES:
patent: 6634454 (2003-10-01), Sugitani et al.
patent: 6719088 (2004-04-01), Nakano et al.
patent: 2001/0032748 (2001-10-01), Demerly
patent: 2004/0133321 (2004-07-01), Ghoneim et al.
patent: 10-217998 (1998-08-01), None
patent: 2002-160642 (2002-06-01), None
Honda Motor Co. Ltd.
Merchant & Gould P.C.
Winner Tony
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