Harmonics reduction in inductive position sensors
AssigneeHl Mando Corporation
InventorsMeah Imtiaz ZULKARNAIN, Md Sariful ISLAM, Mohammad ISLAM
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Abstract
An inductive position sensor is provided. The inductive position sensor includes: a metallic target having at least one lobe; and a sensing portion configured to determine a position of the metallic target. The sensing portion includes: sinusoidal and cosine coils; and a transmitter coil that surrounds the sinusoidal and cosine coils. At least one of a shape of the at least one lobe or a configuration of the sinusoidal and cosine coils is configured to cancel at least one order of harmonics induced on the sinusoidal and cosine coils.
Claims20
An inductive position sensor comprising:
- a metallic target comprising at least one lobe;
- and
- a sensing portion configured to determine a position of the metallic target, the sensing portion comprises:
- sinusoidal and cosine coils;
- and
- a transmitter coil that surrounds the sinusoidal and cosine coils,
- wherein at least one of a shape of the at least one lobe or a configuration of the sinusoidal and cosine coils is configured to cancel at least one order of harmonics induced on the sinusoidal and cosine coils.
A steer-by-wire system comprising:
- a first powerpack comprising a first motor;
- a second powerpack comprising a second motor;
- a steering rack operably coupled to the first motor of the first powerpack and the second motor of the second powerpack, the steering rack configured to be linearly movable in response to rotation of at least one of the first motor and the second motor, wherein a rotation ratio associated with the first motor and a rotation ratio associated with the second motor are different from each other;
- and
- an inductive position sensor configured to measure a motor position of at least one of the first motor or the second motor, the inductive position sensor comprising:
- a metallic target comprising at least one lobe;
- and
- a sensing portion configured to determine a position of the metallic target, the sensing portion comprises:
- sinusoidal and cosine coils;
- and
- a transmitter coil that surrounds the sinusoidal and cosine coils,
- wherein at least one of a shape of the at least one lobe or a configuration of the sinusoidal and cosine coils is configured to cancel at least one order of harmonics induced on the sinusoidal and cosine coils.
Dependencies are inferred from the claim text.