Torque sensor unit with pressed-in sensor unit
AssigneesThyssenkrupp Presta AG, thyssenkrupp AG
InventorsPeter Knoll, Andreas Muenster, Peter Szabo
Life of this patent
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Abstract
A torque sensor unit may include a ring magnet that can be connected to a first partial shaft for conjoint rotation, a magnetic flux conductor that can be connected to a second partial shaft, a sensor unit having a first housing, wherein the sensor unit detects a change in rotational angle between the partial shafts, a second housing that surrounds the ring magnet and the magnetic flux conductor and is fixedly connected to the first housing of the sensor unit. The second housing of the torque sensor unit may have a housing opening into which the first housing of the sensor unit is pressed to form a frictional connection.
Claims27
-26. (canceled)
A torque sensor unit comprising:
- a ring magnet that is connectable to a first partial shaft for conjoint rotation;
- a magnetic flux conductor that is connectable to a second partial shaft;
- a sensor unit having a first housing, wherein the sensor unit detects a change in rotational angle between the first and second partial shafts;
- and
- a second housing that surrounds the ring magnet and the magnetic flux conductor, the second housing being fixedly connected to the first housing of the sensor unit, wherein the second housing has a housing opening in which the first housing of the sensor unit is fixed by way of a frictional, press-fit connection.
An electromechanical steering system for a motor vehicle, the electromechanical steering system comprising:
- a steering pinion that is connected to a first partial shaft and meshes with a rack for steering wheels, wherein the rack is mounted in a third housing and is displaceable along a longitudinal axis;
- an electric motor for steering force assistance;
- and
- a torque sensor unit disposed between the first partial shaft and a second partial shaft connected to a steering wheel, the torque sensor unit configured to detect a torque introduced into the steering wheel by a driver, the torque sensor unit comprising
- a ring magnet that is connectable to the first partial shaft for conjoint rotation,
- a magnetic flux conductor that is connectable to the second partial shaft,
- a sensor unit having a first housing, wherein the sensor unit detects a change in rotational angle between the first and second partial shafts, and
- a second housing that surrounds the ring magnet and the magnetic flux conductor, the second housing being fixedly connected to the first housing of the sensor unit, wherein the second housing has a housing opening in which the first housing of the sensor unit is fixed by way of a frictional, press-fit connection.
A method for assembling a torque sensor unit for an electromechanical power steering system that includes a ring magnet connected to a first partial shaft for conjoint rotation, a magnetic flux conductor connected to a second partial shaft, with the first and second partial shafts being axially opposite one another and connected by a torsion bar, a sensor unit that has a first housing and detects a change in rotational angle between the first and second partial shafts, and a second housing that surrounds the ring magnet and the magnetic flux conductor, the method comprising:
- positioning the sensor unit in a housing opening of the second housing;
- and
- pressing the sensor unit into the housing opening to form a frictional connection.
Dependencies are inferred from the claim text.