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Voltage control on a train system

  • US 6,681,161 B1
  • Filed: 10/09/2001
  • Issued: 01/20/2004
  • Est. Priority Date: 04/14/1999
  • Status: Expired due to Fees
First Claim
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1. A method of preventing train voltages from falling below a predetermined voltage in a commuter train system having a plurality of trains, the method comprising the steps of:

  • estimating a power consumption of each train on the commuter train system;

    predicting a train voltage of each train that is consuming power based on the estimated power consumption of each nearby train;

    comparing the predicted train voltage of each train that is consuming power with a minimum voltage (Vmin); and

    reducing an acceleration command of each train that has the predicted train voltage less than a low voltage (Vlow), the reducing step being performed when one or more predicted train voltages are less than the minimum voltage (Vmin).

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