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ELECTRIC POWER STEERING ELECTRIC POWER STEERING (EPS) 37-10 STEERING WHEEL OPERATION 1. When the steering wheel is operated, the torque sensor integrated into the column shaft detects 2. The EPS-ECU outputs the current in proportion to the torque sensor signal to the motor. 3. The motor outputs the rotational torque (assist torque) in proportion to the current intensity and FAIL-SAFE FUNCTION OPERATION During the fail-safe mode, the electric power steering ACB05506 EPS-ECU Torque sensor Torque sensor signal (main) Torque sensor signal (sub) Motor current Motor AB |