Motorized power steering apparatus

Details Motorized power steering apparatus Motorized power steering apparatus

1989-09-18

1991-01-22

Hill, Mitchell J.

Motor vehicles

Compensating devices

318599, 388831, B62D 504

Patent

active

049863797

ABSTRACT:
A motorized power steering apparatus for a vehicle has a torque sensor which generates an output voltage proportional 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. A current limiter limits the motor current to a value which decreases as the temperature of the motor or the temperatures of power switching elements in the motor controller increases.

REFERENCES:
patent: 4611682 (1986-09-01), Yasuda et al.
patent: 4771843 (1988-09-01), Shimizu

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