Electric power steering controller

Details Electric power steering controller Electric power steering controller

2005-07-15

2010-12-14

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Battery-fed motor systems

C318S432000, C180S280000, C180S443000

Reexamination Certificate

active

07852023

ABSTRACT:
The object of the present invention is to provide an electric power steering controller in which a redundant system equal to that with a relay is configured, without incurring the upsizing or deterioration in reliability, of the controller. An electric power steering controller involving the present invention is provided with a motor for providing a steering system with output torque; a motor driving circuit for driving the motor; a microcontroller for calculating a current to be applied to the motor; a gate driver for driving a plurality of switching devices constituting a bridge circuit, based on the result of the calculation by the microcontroller; and a switching portion for cutting off the power supply to the gate driver.

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