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Reducing the Logistics Burden for the Army After Next Doing More with Less (1999) / Chapter Skim
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E Duty Cycles and Fuel Economy of Hybrid Vehicles
Pages 195-196

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From page 195...
... This appendix cannot answer the question, but it does explain in more technical detail the reasons why the committee believes the Army should make complete engineering assessments before making design decisions. A hybrid-electric power plant reduces fuel consumption principally because the engine runs more of the time at or near peak efficiency, rather than at lower engine speeds where the engine is less efficient at converting stored energy in the fuel to mechanical energy in the driveshaft.
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From page 196...
... Duty cycle for a 3.4 metric-ton vehicle with an engine rated at 235 brake horsepower and a maximum torque of 440 ft-Ib.
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Key Terms

  • power demand
  • fuel economy
  • power plant
  • near peak
  • peak efficiency

  • power output
  • demand phases
  • continuous speed
  • stored energy
  • engine runs

  • consumption principally
  • seven ranges
  • storage component
  • electrical storage
  • extra energy

  • engine power
  • energy captured
  • nine ranges
  • mechanical energy
  • mean power

  • cells representing
  • peak power
  • frequent stops
  • city bus
  • engine operates

  • lower engine
  • component energized
  • maximum rated
  • storage capacity
  • engine speed


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