FUEL INJECTOR WEAR COMPENSATION METHODOLOGY BY ALTERING INJECTION SCHEDULE

摘要

Fuel injector wear compensation methodologies for use with internal combustion engines that alter the injection schedule over the life of the fuel injector(s) by using methods that conduct a primary injection of fuel in the engine (primary fuel event), per an injection schedule within an engine cycle; compare a measured engine parameter(s) to a reference value(s); and then alter the injection schedule applied to the engine, based on the comparing. Another method comprises: during injection events, inject a first fuel in a combustion chamber of the engine; measure an engine parameter(s) of the engine during operation; compare the engine parameter(s) to a reference value(s); add a post injection event of a second fuel during the injection events, based on the comparison. The methods can be applied with single or dual fuels.

主权项

1. A method of injecting fuel in an internal combustion engine, the method comprising:
conducting a primary injection of a first fuel in the internal combustion engine, thereby defining a primary fuel event, according to an injection schedule within an engine cycle; comparing a measured engine parameter to a reference value; and altering the injection schedule applied to the internal combustion engine, based on the comparing.