NON-CONTACT MULTI-TURN ABSOLUTE POSITION MAGNETIC SENSOR COMPRISING A THROUGH-SHAFT

摘要

The sensor has an angular position detection system detecting an angular position of a shaft e.g. input shaft, of a steering column of a steering wheel of a motor vehicle. The system generates a signal based on a theta/ n periodic function to provide a periodic angular position of the shaft, where theta and n verify specific relationship such as theta/ n is equal to 360 and n is greater than one. Another detection system generates an absolute signal in theta direction of the shaft, and has a probe (16) that measures tangential and axial components of a diametrically magnetized magnet (19). An independent claim is also included for an assembly comprising a torsion torque and angular position detection sensors.