Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
  • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
  • B60L5/22—Supporting means for the contact bow
  • B60L5/28—Devices for lifting and resetting the collector
  • B60L5/32—Devices for lifting and resetting the collector using fluid pressure
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L2200/00—Type of vehicles
  • B60L2200/26—Rail vehicles

Definitions

• the pantograph is the device that picks up in trains the current from the overhead feeder line.
• the thrust of the pantograph on the overhead supply line is determined by electropneumatic motor systems and by aerodynamic forces.
• the system that constitutes the object of the present patent for industrial invention, allows the continuous control of the pantograph thrust as a function of the running parameters of the railway vehicle and realizes a diagnostic system able to detect and to prevent the faultiness of the pantograph and that of the contact line.
• This continuous control of the pantograph thrust is carried out by operating on the pneumatic actuator which, in the case of a railway pantograph, consists of an air spring.
• pantograph [1) On the enclosed table a pantograph [1) is shown, with a diagram of the command system for the active and diagnostic control.
• the active control of the pressure of the spring air (2) is realized by means of a proportional valve (4] that, under the command signal coming from the electronic control unit [3), governs, in a continous way, the outgoing pressure.
• the command signal processed by the electronic control unit (3) is a function of the running parameters of the vehicle on which the pantograph is installed. These running parameters of the train are tranferred to the electronic control unit by the vehicle bus (MVB or ethernet or by wired signals.
• VVB vehicle bus
• control unit (3) processes a command current signal (typical value 4 ⁇ 20mA) for the proportional valve (4).
• the proportional valve (4) as a function of the command of the control unit (3), supplies a continuous outgoing pressure (typical value 0 ⁇ 5 bar] controlled by a pressure sensor placed on the outgoing pneumatic pipe of the valve itself.
• control unit (3) supplies, as a function of the running parameters, a continuous pressure which is controlled as input by the pantograph air spring that brings about a continuous and controlled thrust of the pantograph on the catenary.
• the standard configuration of the control unit (3) consists of the following boards: • Micro board (3.1) with electric/optic interface MVB or electric interface Ethernet (bus-vehicle dialogue) and connection with diagnostic board (5).
• Interface board digital output (3.4) (interface for digital output signals of the vehicle).
• the standard configuration of the proportional valve (4) consists of:
• the system includes a diagnostic (5) to register the failures of both the pantograph and the overhead contact line, bringing about their maintenance under condition.
• the picking up systems nowadays in use do not include diagnostic systems able to measure the acceleration of the pantograph slidings and the dynamic parameters of the board.
• the control unit (5) by processing the analogue signals coming from the optical sensors and interrelating them with the train speed and its geographic location, may transmit any information to the train diagnostic system, by means of a bus MVB/Ethernet, concerning possible faultiness of:
• pantograph motor system air spring
• the diagnostic system measures and processes the acceleration signals of the pantograph single sliding bow.
• the passband required for optical accelerometers is 0,5 ⁇ 200 Hz and the sampling rate is equal to 2 Hz.
• the relative data, combined with the train speed and location, are transmitted to the train diagnostic through the bus vehicle.
• the standard configuration of the diagnostic system consists of:
• optical sensors • optical sensors (6) with fibre optics and connectors (standard configuration optical accelerometers),

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Power Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (3)

Families Citing this family (10)

Citations (1)

Family Cites Families (4)

• 2010
  • 2010-11-30 IT ITNA2010A000058A patent/IT1402945B1/it active
• 2011
  • 2011-11-17 EP EP11805975.7A patent/EP2646272A1/de not_active Withdrawn
  • 2011-11-17 WO PCT/IT2011/000378 patent/WO2012073266A1/en not_active Ceased

Patent Citations (1)

Non-Patent Citations (1)

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