Handwheel damping control of active steering system

Details Handwheel damping control of active steering system Handwheel damping control of active steering system

2004-12-20

2009-06-09

Keith, Jack W (Department: 3663)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C180S443000

Reexamination Certificate

active

07546191

ABSTRACT:
An active front steering (AFS) system that provides hand-wheel damping. The AFS system includes a damping control sub-system that determines a hand-wheel angular velocity based on the rate of change of a hand-wheel angle signal. The damping control sub-system determines the damping control signal by multiplying the angular velocity of the hand-wheel angle signal with a control gain. The damping control signal is added to a steering signal from a variable gear ratio control sub-system to generate a steering command signal. The damping control sub-system sets to the damping control signal to zero if a signal from a vehicle stability enhancement sub-system is activated.

REFERENCES:
patent: 4741408 (1988-05-01), Bausch et al.
patent: 4834203 (1989-05-01), Takahashi et al.
patent: 4840389 (1989-06-01), Kawabe et al.
patent: 4875541 (1989-10-01), Oshita et al.
patent: 4951199 (1990-08-01), Whitehead
patent: 4951207 (1990-08-01), Furukawa et al.
patent: 5032997 (1991-07-01), Kawagoe
patent: 5073860 (1991-12-01), Blackburn et al.
patent: 5151860 (1992-09-01), Taniguchi et al.
patent: 5258912 (1993-11-01), Ghoneim et al.
patent: 5275474 (1994-01-01), Chin et al.
patent: 5337238 (1994-08-01), Gioutsos et al.
patent: 5428537 (1995-06-01), Kamono et al.
patent: 5481457 (1996-01-01), Yamamoto et al.
patent: 5513108 (1996-04-01), Kishimoto et al.
patent: 5568389 (1996-10-01), McLaughlin et al.
patent: 5596252 (1997-01-01), Shimizu et al.
patent: 5668722 (1997-09-01), Kaufmann et al.
patent: 5690361 (1997-11-01), Mouri
patent: 5709281 (1998-01-01), Sherwin et al.
patent: 5719766 (1998-02-01), Bolourchi et al.
patent: 5743351 (1998-04-01), McLaughlin
patent: 5801619 (1998-09-01), Liu et al.
patent: 5884203 (1999-03-01), Ross
patent: 5899948 (1999-05-01), Raphael et al.
patent: 5904730 (1999-05-01), Yamazaki et al.
patent: 5919241 (1999-07-01), Bolourchi et al.
patent: 5957987 (1999-09-01), Sudo et al.
patent: 5979587 (1999-11-01), Liubakka et al.
patent: 6122579 (2000-09-01), Collier-Hallman et al.
patent: 6122584 (2000-09-01), Lin et al.
patent: 6152254 (2000-11-01), Phillips
patent: 6161068 (2000-12-01), Kurishige et al.
patent: 6203060 (2001-03-01), Cech et al.
patent: 6240350 (2001-05-01), Endo
patent: 6272412 (2001-08-01), Wu et al.
patent: 6301534 (2001-10-01), McDermott et al.
patent: 6450287 (2002-09-01), Kurishige et al.
patent: 6527079 (2003-03-01), Takeuchi et al.
patent: 6564898 (2003-05-01), Takehara et al.
patent: 6598699 (2003-07-01), Takehara et al.
patent: 6644688 (2003-11-01), Hu et al.
patent: 6658335 (2003-12-01), Kleinau
patent: 2001/0041957 (2001-11-01), McCann et al.
patent: 2002/0005314 (2002-01-01), Takehara et al.
patent: 2002/0020577 (2002-02-01), Takehara et al.
patent: 2002/0053481 (2002-05-01), Itakura et al.
patent: 2002/0056587 (2002-05-01), Shibasaki et al.
patent: 2002/0087241 (2002-07-01), Nakano et al.
patent: 2003/0024759 (2003-02-01), Williams et al.
patent: 2003/0052639 (2003-03-01), Tanaka et al.
patent: 2003/0074120 (2003-04-01), Kleinau
patent: 2003/0121716 (2003-07-01), Yamada et al.
patent: 2003/0146041 (2003-08-01), Kanda
patent: 2003/0173141 (2003-09-01), Itakura et al.
patent: 2004/0061465 (2004-04-01), Matsuoka

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