Linear actuator comprising a measuring device for determining a position of a linearly moveable component
AssigneeSchaeffler Technologies AG & Co. KG
InventorThomas Drescher
Life of this patent
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Abstract
A linear actuator for a steer-by-wire system including a component, in particular an axle or a shaft, that can be moved along a linear trajectory, and including a measuring device for determining a position of the component. The measuring device has a coil for inductively determining the position of the component, and the coil is arranged coaxially relative to the linear trajectory of the component.
Claims20
A linear actuator for a steer-by-wire system, the linear actuator comprising:
- a component that is movable along a linear trajectory;
- a measuring device configured for determining a position of the component;
- wherein the measuring device has a coil for inductively determining the position of the component, and the coil is arranged coaxially relative to the linear trajectory of the component, arranged on a coil carrier and within a hollow cylindrical receiving region of the coil carrier, and arranged within a housing of the linear actuator;
- wherein the coil carrier includes a fastening region for fastening the coil carrier in a recess of the housing which encloses the trajectory of the component, the recess and at least a portion of the fastening region being radially outward of the coil.
A method for determining a position of a component of a linear actuator for a steer-by-wire system, the method comprising:
- moving the component along a linear trajectory, and
- determining the position of the component by a measuring device which comprises a coil for inductively determining the position of the component, the coil is arranged coaxially relative to the linear trajectory of the component, arranged on a coil carrier and within a hollow cylindrical receiving region of the coil carrier, and arranged within a housing of the linear actuator;
- wherein the coil carrier includes a fastening region for fastening the coil carrier in a recess of the housing which encloses the trajectory of the component, the recess and at least a portion of the fastening region being radially outward of the coil.
A linear actuator, comprising:
- a component that is movable along a linear trajectory;
- a measuring device configured for determining a position of the component;
- wherein the measuring device has a coil for inductively determining the position of the component, and the coil is arranged coaxially relative to the linear trajectory of the component;
- and
- wherein the coil is arranged on a coil carrier that is connected to a cover, the cover being arranged in a recess of a housing, and evaluation electronics connected to the coil are arranged inside the cover for evaluating signals measured by the coil.
Dependencies are inferred from the claim text.