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Railroad system comprising railroad vehicle with energy regeneration

  • US 20060005739A1
  • Filed: 08/30/2005
  • Published: 01/12/2006
  • Est. Priority Date: 03/27/2001
  • Status: Abandoned Application
First Claim
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1. A self-powered railroad system having power regeneration capacity, the railroad system comprising:

  • a. a control source adapted to transmit control commands; and

    b. a plurality of load units connected form a train, said plurality comprising at least one railroad vehicle comprising;

    i. a structure for supporting freight to be carried on the vehicle;

    ii. a plurality of wheels rotatably attached to the structure for engaging railroad rail;

    iii. a traction motor coupled to at least one of the wheels constituting a driving wheel, said traction motor adapted to operate in a motoring mode for transmitting mechanical energy to the driving wheel, a coasting mode, and a dynamic braking mode for braking the driving wheel, with said traction motor using electrical energy when operating in the motoring mode and generating dynamic braking electrical energy when operating in the dynamic braking mode;

    iv. an electrical energy storage system in electrical communication with the traction motor, adapted to store dynamic braking electrical energy when the traction motor is operated in the dynamic braking mode and adapted to discharge electrical energy to the traction motor when the traction motor is operated in the motoring mode;

    v. a controller in communication with the traction motor and the electrical energy storage system and responsive to control commands to selectively operate the traction motor in the motoring mode, the coasting mode, and the dynamic braking mode; and

    vi. a communication link for receiving control commands from the control source external to the railroad vehicle and being in communication with the controller to transmit a signal indicative of the control command to the controller.

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