Steering apparatus for vehicle

Details Steering apparatus for vehicle Steering apparatus for vehicle

2006-04-10

2009-06-30

Dickson, Paul N (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S402000, C180S403000, C180S443000, C180S444000

Reexamination Certificate

active

07552795

ABSTRACT:
A steering apparatus for a vehicle, includes: an operation unit; an input operation magnitude measuring unit; a turning actuator turning steerable wheels; a reaction force actuator; a turning actuator control unit; a reaction force actuator control unit; a planetary gear unit disposed between the operation unit and the turning actuator; a locking element fixing and releasing a component of the planetary gear unit; a locking element operation unit; a locking state detection unit; and a control unit executing at least one of the control operations for increasing magnitude of a control parameter for the turning actuator and for increasing magnitude of a control parameter for the reaction force actuator if it is determined by the locking state detection unit that the locking element is placed in a locked state even though the locking element operation unit is operated so as to place the locking element in the locked state from an unlocked state.

REFERENCES:
patent: 7234563 (2007-06-01), Ogawa et al.
patent: 2003/0114970 (2003-06-01), Hara
patent: 2005-029016 (2005-02-01), None
patent: 2005029016 (2005-02-01), None

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