Where is the steering wheel torque sensor located?
1 Answers
Steering wheel torque sensor is located on the steering column below the steering wheel. Locate the power assist motor, which usually has a small metal cover. The component with four wires and a connector is the steering torque sensor. Remove the small metal cover to see it. The torque sensor is one of the key components in electronic power steering systems. It measures the magnitude and direction of the torque applied by the driver on the steering wheel, and converts it into electrical signals. The power steering ECU receives this signal along with vehicle speed signal to determine the direction and magnitude of assist power. Types of torque sensors: Non-contact torque sensor: The non-contact torque sensor connects input shaft and output shaft through a torsion bar. The input shaft has splines while the output shaft has keyways. When the torsion bar twists under steering wheel torque, the relative position between input shaft splines and output shaft keyways changes; Strain gauge torque sensor: The strain gauge sensor measures torque using strain gauge technology. Strain gauges attached to an elastic shaft form a measuring bridge. When the elastic shaft undergoes slight deformation from torque, the bridge resistance changes, which is converted into electrical signal changes to achieve torque measurement.