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Electrohydraulic hybrid lifting vehicle

  • US 8,978,800 B2
  • Filed: 04/18/2011
  • Issued: 03/17/2015
  • Est. Priority Date: 04/16/2010
  • Status: Active Grant
First Claim
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1. A lifting vehicle comprising front and rear axles with respective differentials;

  • a constant-velocity, universal joint drive longitudinally connecting said front and rear differentials;

    a telescopic arm; and

    at least one hydraulic circuit powered by a hydraulic pump to operate said telescopic arm;

    the vehicle further comprising a first side compartment positioned between said axles housing an internal combustion engine, a reversible electric machine, said hydraulic pump, and a disconnectable drive for selectively disconnecting said internal combustion engine from said reversible electric machine and said hydraulic pump;

    said reversible electric machine driving said hydraulic pump when said internal combustion engine is disconnected from said disconnectable drive; and

    a battery housed in a second side compartment opposing said first side compartment with respect to said constant-velocity, universal joint drive, the battery being connected for charging said reversible electric machine and to an electric motor connected to said constant-velocity, universal joint drive to provide a series hybrid drive with the internal combustion engine.

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