Electric Power Steering (EPS)

The motor can sit on the steering column, on the pinion or on the rack. A torque sensor measures how hard the driver turns. EPS saves fuel because it uses energy only when assisting, and it allows features such as lane keeping and parking assist.

The control unit reads the torque sensor and vehicle speed and drives the motor to add the right amount of assistance.

A warning light and suddenly heavy steering indicate a fault. Low battery voltage can also reduce assistance.