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BATTERY CHARGING AND ISOLATION SYSTEM FOR GAS ENGINE

  • US 20090278509A1
  • Filed: 05/06/2008
  • Published: 11/12/2009
  • Est. Priority Date: 05/06/2008
  • Status: Abandoned Application
First Claim
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1. A control system for an internal combustion engine having a battery for electric start operation and a mechanical starter for manual start operation, the control system comprising:

  • a transformer configured to generate a high voltage output for providing a spark;

    a power regulation circuit having an input adapted to receive the high voltage output and generate a low voltage supply; and

    a battery charging circuit having a switching element adapted to receive the low voltage supply and operatively couple the low voltage supply to the battery to charge the battery, the battery charging circuit including disconnecting circuitry operatively coupled to the switching element, wherein if a voltage level of the battery falls below a predetermined threshold value, the disconnecting circuitry turns off the transistor to electrically disconnect the battery from the low voltage supply and disable the battery charging operation;

    wherein the mechanical starter is configured to start the engine if the battery is insufficiently charged to drive the electric motor to start the engine.

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