Patent ID: 7939952
Filing Date: 2011-05-10
Classification: B60H,H02J,Y02T

Abstract:
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.