Ignition System for Spark Ignition Engines and Method of Operating Same

摘要

An ignition coil system is configured for use with a spark ignition internal combustion engine. The system includes a first switching circuit electrically connected to the primary coil that provides electrical power to the primary coil. The system includes a second switching circuit connected to the primary coil that is configured to short the terminals of the primary coil after the secondary current has been induced in the secondary coil, whereby the secondary coil induces a current in the primary coil, thereby reducing the secondary current in the secondary wire coil. A controller in communication with the first and second switching circuits is configured to receive a single electronic spark timing (EST) signal and to control the conductive states and the non-conductive states of the first and second switching circuits based on this single EST signal.

主权项

1. An ignition coil system configured for use with a spark ignition internal combustion engine, comprising:
a central core; a primary wire coil wound about the central core; a secondary wire coil wound about the central core; a first switching circuit electrically connected to the primary wire coil and configured to be connected to an electrical power source, wherein a first electrical current from the electrical power source flows through the primary wire coil when the first switching circuit is in a conductive state and the first electrical current does not flow through the primary wire coil when the first switching circuit is in a non-conductive state; a second switching circuit electrically connected to the primary wire coil, wherein a second electrical current is induced in the primary wire coil by a third current in the secondary wire coil when the first switching circuit is in a non-conductive state and the second switching circuit is in a conductive state, thereby reducing the third current in the secondary wire coil; and a controller in communication with the first and second switching circuits, said controller configured to receive a single switching signal and to control the conductive states and the non-conductive states of the first and second switching circuits based on said single switching signal.