Pantograph arc monitoring system and method
AssigneeHitachi, Ltd.
InventorsPaoletti Umberto, Aya Ohmae
Life of this patent
Estimating the term…
Abstract
An object of the disclosure is to provide a technique for identifying an arc position between an overhead line and a pantograph mounted on an electric vehicle. A system according to the disclosure includes: a magnetic field detector configured to detects a magnetic field generated by an arc; and a first processor disposed in an electric vehicle and configured to determine a horizontal position of the arc on a pantograph by using the magnetic field detected by the detector.
Claims8
A system configured to monitor an arc between an overhead line and a pantograph of an electric vehicle, the pantograph collecting current for the electric vehicle from the overhead line, the system comprising:
- a magnetic field detector configured to detect a change in a magnetic field generated by the arc;
- and
- a first processor configured to determine a horizontal position of the arc on the pantograph, and output first data that describes the horizontal position, an occurrence time of the arc, and an intensity of the arc, wherein
- the magnetic field detector is disposed adjacent to the pantograph, and
- the first processor is disposed in the electric vehicle,
- wherein the magnetic field detector includes two shield loop antennas, and
- wherein the first processor is configured to determine the horizontal position by using a tilt of the shield loop antenna with respect to the pantograph, a first antenna signal received by a first shield loop antenna when the arc occurs, and a second antenna signal received by a second shield loop antenna when the arc occurs, so as to determine an angular position with respect to the arc from the shield loop antenna.
Dependencies are inferred from the claim text.