Steering controlling device

Details Steering controlling device Steering controlling device

2006-01-17

2006-01-17

Martin, David (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S139000, C318S434000, C180S443000, C180S444000, C180S446000, C701S041000, C701S042000, C701S043000, C701S044000

Reexamination Certificate

active

06987371

ABSTRACT:
A steering controlling device comprising a power source, a motor connected to a steering system, a motor driving circuit converting a power source voltage to a predetermined voltage and applying the voltage to the motor, and a controlling means for controlling the motor driving circuit, wherein the controlling means controls the motor driving circuit so as to boost the power source voltage when a rotational speed of the motor is a predetermined value or more, whereby a sufficient motor output torque is obtainable under various steering conditions in use of a converter, an efficiency is improved by suppressing a frequency of operating the converter, and an appropriate fail safe treatment is conducted when the converter is disordered.

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French Search Report dated Nov. 5, 2004.

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