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Control system and method for electric vehicle

  • US 7,711,460 B2
  • Filed: 06/12/2007
  • Issued: 05/04/2010
  • Est. Priority Date: 01/31/2001
  • Status: Expired due to Fees
First Claim
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1. An electric traction vehicle comprising:

  • a vehicle platform;

    a plurality of drive wheels coupled to the vehicle platform;

    a plurality of electric motors coupled to respective ones of the plurality of drive wheels, the plurality of electric motors being used to drive the plurality of drive wheels;

    an electrical connector which is configured to be used to allow an electrical power-consuming system off-board the vehicle to be connected to the vehicle and draw electrical power from the vehicle when a power consumption for the plurality of electric motors is substantially zero;

    a power storage unit;

    a power source coupled to the vehicle platform, the power source being used to provide electrical power to the plurality of electric motors and the electrical connector, the power source being configured to supply power to the electrical power-consuming system off-board the vehicle which are not specifically designed to be supplied power from the power source;

    a communication network interconnecting a plurality of drive controllers associated with respective one of the plurality of the electric motors; and

    microprocessor-based interface modules coupled to each other by way of the communication network;

    each one of the microprocessor-based interface modules being configured to store I/O information for input and output devices coupled to the other microprocessor-based interface modules, wherein the microprocessor-based interface modules are configured to control via the communication network an energy supply from the power storage unit;

    wherein the vehicle is configured to provide at least about 250 kilowatts of power to the off-board power-consuming system.

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