Contactless multiturn magnetic sensor for measuring absolute angular position of steering column of motor vehicle, has detection system generating absolute signal in theta direction of shaft of steering column of motor vehicle

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.