Sensor system for determining an absolute angle of rotation of a shaft, method for determining an absolute angle of rotation of a shaft and vehicle with a sensor system

摘要

The invention relates to a sensor system (1) and to a method for determining an absolute angle of rotation (δ) of a shaft (10) with a rotation angle range of more than one revolution and a vehicle having a sensor system (1), the sensor system (1) being rotationally synchronous a main rotor (2) which can be connected to the shaft (10), a first secondary rotor (3) mechanically coupled to the main rotor (2), a second secondary rotor (4) mechanically coupled to the main rotor (2), one associated with the first secondary rotor (3) first sensor device (SE1) for generating a first sensor signal dependent on a rotational angle of the first secondary rotor (3), a second sensor device (SE2) assigned to the second secondary rotor (4) for generating a second sensor signal dependent on a rotational angle of the second secondary rotor (4), a third sensor device (SE3) assigned to the main rotor (2) for generating a third sensor dependent on a relative angle of rotation (γ) of the main rotor (2) Ignals and an evaluation device for determining the absolute angle of rotation (δ) of the main rotor (2) from the sensor signals of the sensor devices (SE1, SE2, SE3). The detection range (α) of the third sensor device is less than 360 °.