De Amertek's power-steering system combines an electric power steering control logic ECU (electronic control unit) with a brushless motor and contactless torque-angular sensor into a complete, robust steering column. The all-electric, engine-independent power steering system's brushless motor offers a longer life span vs. brush-styled motors, while the torque-angular sensor combines contact-type torque angle detection with noncontact steering angle detection. The ECU features advanced algorithm software controls. A self-centering function allows the wheel to turn back to the central position after rotation to enhance driving stability and safety, and integrated modules and components as well as a compact size improve assembly and layout flexibility. The system operates on demand and is power-assisted only when necessary, reducing fuel consumption. Operating temperature range is -40 to +105°C (-40 to +221°F) and maximum torque is 4 N•m (3 lb•ft).