Acura NSX 1991 Manual page 411

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Rotation Sensor
The rotation sensor is housed inside the steering gearbox near the pinion. It converts the rotation speed and direction of
steering into voltage signals. The rotation of the steering wheel is transmitted to the pinion, which drives the sensor by
accelerating its speed through the three pieces of transmission the gears. Acting as a kind of direct current generator, the
sensor generates direct current voltage proportionately with the rotational speed of the pinion. When the steering direc-
tion is reversed, the voltage is generated in the opposite direction. No power is generated when driving straight ahead
without turning the steering wheel.
Interface Circuit
The interface circuit is housed inside the steering gearbox near the pinion. It rectifies and amplifies the signals from the
torque sensor and the rotation sensor, and transmits the steering signals to the EPS control unit. A phase compensating
circuit is also built in, which changes the output signals in accordance with the drive signals input from the EPS control
unit.
INTERFACE CIRCUIT
ROTATION SENSOR
Table of Contents
TRANSMISSION GEARS