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Hybrid energy power management system and method

  • US 9,193,268 B2
  • Filed: 02/06/2007
  • Issued: 11/24/2015
  • Est. Priority Date: 03/27/2001
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a processor configured to monitor fuel efficiencies of an engine system of a vehicle when the engine system consumes plural different fuels to propel the vehicle, the processor also configured to monitor volumes of the fuels as the vehicle moves along a route,wherein the fuels include a first fuel and a second fuel, and the processor is configured to determine whether the volume of the first fuel is sufficient to power the vehicle to travel to a first upcoming refueling location where the vehicle can acquire more of the first fuel, and to determine whether the volume of the second fuel is sufficient to power the vehicle to travel to a second upcoming refueling location where the vehicle can acquire more of the second fuel, andwherein the processor is configured to direct the engine system to switch which of the first fuel and the second fuel is consumed by the engine system to propel the vehicle based on the fuel efficiencies of the engine system that are monitored, based on whether the vehicle can reach the first upcoming refueling location, and based on whether the vehicle can reach the second upcoming refueling location.

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