Power steering system

Details Power steering system Power steering system

2007-01-18

2009-12-15

Morris, Lesley (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

C180S443000, C180S422000, C180S420000, C180S423000, C180S428000

Reexamination Certificate

active

07631722

ABSTRACT:
In a power steering system, the steering state of wheels is detected based on the steering speed to judge as to whether the steering state is in turning of the steering wheel or holding of steering speed is the steering wheels. At the time of the steering operation state, the control is executed so that a difference between a torque command value to an electric motor and the actual torque thereof will become smaller. Also, at the time of the holding operation state, the control is executed so that a difference between the revolution speed of the electric motor and a revolution-speed command value thereto will become smaller.

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Hiroshi Ogino, “How to Use Brushless DC Motor”, Ohmsha Corp., pp. 16-17.

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