Electric Power Steering


Electric Power Steering (EPS) uses an electric motor and control module to provide steering assistance to the driver when needed.

EPS works by using the SAS and torque angle sensor to measure the motion and torque of the steering column. This information tells the control module to apply varying amounts of assistive torque supplied from the electric motor to match driving conditions.

EPS works within the network of other driver-assist system like ESC to instantly apply different levels of torque and help stabilize vehicle during evasive maneuvers.

Calibration of the sensors is important to the proper functioning of the EPS system and can correct certain steering symptoms such as:

•  Steering wheel vibration
•  Vehicle pull
•  Differences in steering effort between left and right turns

Several automakers have adopted EPS over conventional power steering. The design eliminates the belt-driven pump, hoses and fluid necessary for a hydraulic system, simplifying the manufacturing and maintenance of the vehicle.

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