Motor vehicles – Compensating devices
Patent
1989-09-18
1991-02-12
Hill, Mitchell J.
Motor vehicles
Compensating devices
388831, B62D 504
Patent
active
049916769
ABSTRACT:
A motorized power steering apparatus for a vehicle has a torque sensor which generates an output voltage corresponding to a steering torque exerted by the driver of the vehicle. A motor controller controls the output torque of a drive motor which generates an auxiliary steering force corresponding to the output voltage of the torque sensor. The motor controller is a self-excited pulse width modulation circuit with feedback from the motor which supplies the motor with drive pulses having a pulse width modulated by the output voltage of the torque sensor.
REFERENCES:
patent: 4661750 (1987-04-01), Mori
Hill Mitchell J.
Mitsubishi Denki & Kabushiki Kaisha
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