Cummins Inc.

Borgwarner Ludwigsburg Gmbh

Douglas Sprunger

David J Stroh

Karthik Kappaganthu

Akash S Desai

Benjamin L Olivas

Dirk Wüstenhagen

Dejan Kienzle

A method for determining a need for changing a spark plug of a combustion engine, comprising the following steps: monitoring a current flowing through the spark plug, analyzing the current and thereby determine a time interval that is indicative for the time between application of a voltage to the spark plug and formation of an arc discharge between electrodes of the spark plug, creating a signal indicative of the need to change the spark plug if the duration of the determined time interval is outside predefined bounds.

Method for determining a need for changing a spark plug

A method of responding to a detected blowout in a coil ignition system is provided in this disclosure. The method includes receiving a characteristic regarding operation of a coil ignition system; determining a blowout condition exists for the coil ignition system based on the characteristic; and providing a command to the coil ignition system based on the determination that the blowout condition exists, wherein the command is structured to reduce a residual charge amount in the coil ignition system.

Dual coil ignition system

Growing community of inventors

Columbus, IN, United States of America

Douglas Sprunger