Method and apparatus for detecting a failed temperature...

Details Method and apparatus for detecting a failed temperature... Method and apparatus for detecting a failed temperature...

2007-01-16

2007-01-16

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S402000, C701S043000, C701S041000, C701S042000

Reexamination Certificate

active

11078028

ABSTRACT:
A method and system are provided for controlling an electric assist motor in a vehicle steering system during an enablement of an overuse algorithm. Electric power is provided to the electric assist motor of the vehicle steering system via a switching circuit. Temperature of one of at least electric assist motor and power driving circuitry that provides power to the electric assist motor is sensed. A determination is made whether the sensed temperature of the one of at least electric assist motor and power driving circuitry is increasing over a predetermined period of time. The electric power provided to electric assist motor is reduced in response to a lack of increase in said sensed temperature.

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