Method for the maintenance of a ground-level power supply device for a tram-like vehicle

Patent metadata

Field	Value
Publication number	US-10683022-B2
Application number	US-201815881429-A
Country	US
Kind code	B2
Filing date	Jan 26, 2018
Priority date	Jan 27, 2017
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A method is for maintenance of a ground-level power supply for a transport vehicle. The device includes: a power supply rail, a detector of spatial coordinates of a vehicle; and a power supply shoe. The device and the shoe equip the same vehicle. The supply shoe includes a vibration sensor. The method includes measuring vibrations of the shoe and simultaneously detecting spatial coordinates of the vehicle during the movement of the vehicle along the rail, followed by comparing measured vibrations of the shoe with a threshold value, and determining spatial coordinates corresponding to vibrations above the threshold value.

First claim

What is claimed is:

1. A method for the maintenance of a ground-level power supply for a transport vehicle, said power supply including:
a ground-level power supply rail;
a spatial coordinate detector configured to detect spatial coordinates of a vehicle; and
a supply shoe;
said detector and said supply shoe equipping a same transport vehicle,
the supply shoe being able to rub against the supply rail during a movement of said vehicle along said rail;
wherein the supply shoe includes a sensor detecting vibrations of said shoe in contact with the supply rail; and
wherein the method includes the following steps:
moving the transport vehicle along the rail;
during said movement, measuring vibrations of the supply shoe and simultaneously detecting spatial coordinates of the vehicle; then
comparing measured vibrations of the supply shoe with a threshold value, and
determining spatial coordinates corresponding to vibrations above said threshold value.

2. The maintenance method according to claim 1 , comprising, between the steps for measuring vibrations and performing the comparison with the threshold value, a step for segmenting the measured vibrations.

3. The maintenance method according to claim 1 , wherein the step for determining the spatial coordinates corresponding to vibrations above the threshold value comprises a graphic representation of the power supply rail, on which said spatial coordinates are indicated by a visual marker.

4. A ground-level power supply for a transport vehicle, said power supply including:
a ground-level power supply rail;
a spatial coordinate detector configured to detect spatial coordinates of a vehicle; and
a supply shoe of a vehicle, able to rub against the supply rail during a movement of said vehicle along said rail;
said detector and said supply shoe being intended to equip said same vehicle,
wherein the supply shoe includes a sensor detecting vibrations of said shoe in contact with the supply rail; and
wherein the power supply includes a logic controller, said logic controller storing a program for implementing a method according to claim 1 .

5. The power supply according to claim 4 , wherein the vibration sensor of the supply shoe includes an accelerometer.

6. The power supply according to claim 5 , wherein the supply shoe comprises at least two accelerometers, each being situated close to one end of the shoe along a movement direction of the vehicle.

7. The power supply according to claim 5 , wherein the supply shoe comprises a soleplate and at least one accelerometer situated in the middle of the soleplate along the movement direction of the vehicle.

8. The power supply according to claim 5 , wherein the supply shoe comprises a soleplate and a lever, the lever comprising a device for assessing strains or vertical and transverse forces, said assessment device comprising at least one accelerometer or at least one strain gauge.

9. The power supply according to claim 4 , wherein the power supply rail includes electrically conductive segments and electrically insulating segments, alternating and substantially aligned.

10. An installation for a transport vehicle, including:
a power supply according to claim 4 ;
a transport vehicle, equipped with the detection device and the supply shoe of said power supply; and
two travel rails situated on either side of the supply rail,
the transport vehicle being provided with wheels for moving on said travel rails.

Assignees

• Alstom Transp Tech

Inventors

• Boichot Philippe
• Hmad Ouadie
• Hiely Frederic
• Audibert Stephan

Classifications

• B61L27/57

  for vehicles or trains, e.g. trackside supervision of train conditions · CPC title

• B60M1/04

  Mechanical protection of line; Protection against contact by living beings · CPC title

• B60M1/10

  Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle · CPC title

• B60M1/36

  Single contact pieces along the line for power supply · CPC title

• B60L5/42

  for collecting current from individual contact pieces connected to the power supply line · CPC title