Signal processing method, sensor and use of a sensor for determining rotational speeds and/or rotational positions of wheels of rail vehicle
AssigneeKnorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
InventorsRobert KAKONYI, Imre BUSZNYAK
Life of this patent
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Abstract
A signal processing method and a sensor use a first winding provided on a wheel, wherein the first winding includes any angle with a reference position, a second winding, and a third winding, wherein the directions of the second winding, and a third winding are not parallel; a signal generation and processing unit configured to provide an AC voltage to the first winding and to receive the a first induced voltage of the second winding and the second induced voltage of the third winding. With such a system, wheel speeds/positions can be measured very accurately.
Claims15
A signal processing method for determining an angular position for a wheel of a rail vehicle, the method comprising:
- excitation of a first winding by an AC voltage, the first winding being provided on a wheel of the rail vehicle, wherein the first winding includes any angle with a reference position;
- measuring a first induced voltage in a second winding;
- delivering the induced voltage to a signal generation and processing unit;
- measuring a second induced voltage in a third winding;
- delivering the induced voltage to the signal generation and processing unit, wherein the middle axes of the second winding and the third winding are not parallel;
- determining a rotation angle of the wheel in the signal generation and processing unit;
- and
- calculating a rotation speed and/or rotation position of the wheel,
- wherein the middle axes of the second winding and the third winding are not parallel.
A sensor for determining an angular position for a wheel of a rail vehicle, the sensor comprising:
- a first winding provided on the wheel of the rail vehicle, wherein the first winding includes any angle with a reference position;
- a second winding;
- and
- a third winding, and
- a signal generation and processing unit configured to provide an AC voltage to the first winding and to receive a first induced voltage of the second winding and a second induced voltage of the third winding,
- wherein directions of the second winding and the third winding are not parallel.
A method of using a sensor to determine rotational speeds and/or rotational positions of wheels of a rail vehicle and/or for determining wheel slips of wheels of a rail vehicle, wherein the method determines an angular position for a wheel of the rail vehicle using a first winding provided on the wheel of the rail vehicle, wherein the first winding includes any angle with a reference position, a second winding, and a signal generation and processing unit, configured to provide an AC voltage to the first winding and to receive a first induced voltage of the second winding and a second induced voltage of the third winding, wherein directions of the second winding and the third winding are not parallel.
Dependencies are inferred from the claim text.