Aircraft Wheel Speed Sensor
First Claim
1. A method of sensing aircraft wheel speed, the method comprising:
- applying a carrier voltage signal to a pair of conductors coupled to a stator winding, the stator winding disposed about a rotor that moves upon rotation of an aircraft wheel, the stator winding configured to render a modulated current signal on the pair of conductors in response movement of the rotor, the modulated current signal having a frequency that is dependent on a rotational speed of the aircraft wheel; and
detecting the modulated current signal.
1 Assignment
0 Petitions
Accused Products
Abstract
In some aspects of what is described herein, an aircraft wheel speed sensor system includes a pair of conductors coupled between an electro-mechanical system and a control system. The control system is configured to apply a carrier voltage signal to the pair of conductors and to detect a modulated current signal on the pair of conductors. The electro-mechanical system includes a stator and a rotor that moves upon rotation of an aircraft wheel. The stator includes a winding disposed about the rotor. The winding is configured to produce the modulated current signal on the pair of conductors in response to movement of the rotor. The modulated current signal has a frequency that is dependent on a rotational speed of the aircraft wheel.
-
Citations
22 Claims
-
1. A method of sensing aircraft wheel speed, the method comprising:
-
applying a carrier voltage signal to a pair of conductors coupled to a stator winding, the stator winding disposed about a rotor that moves upon rotation of an aircraft wheel, the stator winding configured to render a modulated current signal on the pair of conductors in response movement of the rotor, the modulated current signal having a frequency that is dependent on a rotational speed of the aircraft wheel; and detecting the modulated current signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An aircraft wheel speed sensor system comprising:
-
a pair of conductors coupled between an electro-mechanical system and a control system; the control system configured to apply a carrier voltage signal to the pair of conductors and to detect a modulated current signal on the pair of conductors; and the electro-mechanical system including; a rotor that moves upon rotation of an aircraft wheel; and a stator that includes a winding disposed about the rotor, the winding configured to render the modulated current signal by modulating current on the pair of conductors in response to movement of the rotor, the modulated current signal having a frequency that is dependent on a rotational speed of the aircraft wheel. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method of sensing aircraft wheel speed, the method comprising:
-
receiving a carrier voltage signal at a stator winding disposed about a rotor that moves upon rotation of an aircraft wheel, the carrier voltage signal being received from a pair of conductors external to the electric machine; and rendering a modulated current signal on the pair of conductors in response to movement of the rotor, the modulated current signal having a frequency that is dependent on a rotational speed of the aircraft wheel. - View Dependent Claims (18, 19, 20, 21)
-
-
22. An aircraft wheel speed sensor system comprising:
-
an electro-mechanical system electrically coupled to a control system by at most a pair of conductors, the electro-mechanical system including a stator without permanent magnets and a rotor without permanent magnets, the stator including a winding configured to render a signal on the pair of conductors, the signal having; a frequency that varies based on a rotational velocity of an aircraft wheel; and a peak amplitude that remains constant as the rotational velocity approaches zero; and the control system configured to detect the signal on the pair of conductors.
-
Specification