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Automotive auxiliary power system

  • US 7,939,952 B2
  • Filed: 02/17/2005
  • Issued: 05/10/2011
  • Est. Priority Date: 02/17/2005
  • Status: Active Grant
First Claim
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1. An auxiliary power system for a vehicle having a main engine and a main air conditioning system, comprising an auxiliary internal combustion engine having a starter;

  • an auxiliary current generator driven by said auxiliary engine and connectable to a battery of the vehicle;

    an auxiliary cooling circuit having a compressor driven by said auxiliary engine;

    control means comprising comparing means connected to said battery to determine the voltage of the battery;

    further control means for activating said starter of said auxiliary engine said control means generating an enabling signal to activate said starter of said auxiliary engine in response to a voltage value of said battery below a reference value;

    further control means for measuring time from the start of the auxiliary engine;

    further control means for turning off said auxiliary engine;

    said control means generating a control signal, for said means for turning off said auxiliary engine, when the measured time reaches a predetermined charge time;

    said control means providing for an automatic recharge of said battery even when said main engine is turned off.

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