Sensor device having a torque sensor unit and a steering angle sensor unit for a motor vehicle

A sensor device having comprising:

• a torque sensor unit;
• and
• a steering angle sensor unit for a motor vehicle,
• wherein the torque sensor unit is configured to detect a torque which is applied to a steering shaft, rotatable about a main axis of rotation, and
• wherein the torque sensor unit comprises at least one torque sensor magnetic unit to generate a torque sensor magnetic field and at least one torque magnetic sensor to generate a torque sensor signal as a function of a torque applied to the shaft,
• wherein the steering angle sensor unit is configured to detect a rotary angle of the shaft, and
• wherein the steering angle sensor unit comprises:
• a main rotor which is able to be connected for conjoint rotation to the shaft,
• a first secondary rotor which is mechanically coupled to the main rotor with a constant and uniform first transmission ratio,
• a first steering angle magnetic unit which is assigned to the first secondary rotor to generate a first steering angle magnetic field, and
• a first steering angle magnetic sensor which is assigned to the first secondary rotor to generate at least one first sensor signal as a function of an rotary angle of the main rotor,
• wherein the first secondary rotor is rotatable relative to the first steering angle magnetic sensor about a first axis of rotation running parallel to the main axis of rotation and the first steering angle magnetic unit is connected for conjoint rotation to the first secondary rotor;
• and
• a magnetic shielding unit with at least one first flat magnetic shielding element which extends in a plane perpendicular to the first axis of rotation, in order to shield the torque sensor magnetic field of the torque sensor unit and the first steering angle magnetic field of the steering angle sensor unit at least partially from one another,
• wherein the first shielding element is arranged in the axial direction on a side of the first steering angle magnetic unit facing away from the first steering angle magnetic sensor,
• wherein the first magnetic shielding element is attached for conjoint rotation to the first secondary rotor.