Toyota Camry Hybrid AHV40 Manual page 182

3. Function of Main Components
Components
Torque Sensor
Motor
Steering Gear Unit Steering Gear Unit
Reduction
Mechanism
Rotation Angle
Sensor
EPS ECU
THS ECU
Skid Control ECU
Meter ECU
CHASSIS - STEERING
Detects the twist of the torsion bar with this, it calculates the torque
that is applied to the torsion bar by changing it into an electrical
signal, and outputs this signal to the EPS ECU.
Generates power assist in accordance with a signal received from
the EPS ECU.
Uses a screw mechanism to reduce the speed through a ball screw
reduction gear and a rack shaft gear, as well as to convert the
rotational movement to a linear movement.
Outputs the rotation angle of the motor to the EPS ECU.
In accordance with the signals received from various sensors and
the skid control ECU, the EPS ECU operates the motor in the
steering gear unit for the purpose of providing power assist.
Transmits a READY signal to the EPS ECU, in order to inform the
EPS system that it is ready to generate electricity.
D Vehicle speed signal is outputted to EPS ECU.
D When VDIM function is operating, the skid control ECU
transmits an additional torque signal (which it has calculated in
accordance with the signals from the sensors for the purpose of
effecting cooperative control) to the EPS ECU.
Upon receiving a signal from the EPS ECU in the event of a system
malfunction, the meter ECU illuminates the P/S warning light.
Function
CH-81