SYSTEM AND METHOD FOR CONTROLLING FUEL INJECTION TIMING BASED ON SPARK IGNITION TIMING WHILE HEATING A CATALYST TO THE LIGHT-OFF TEMPERATURE

摘要

A system according to the principles of the present disclosure includes an ignition timing determination module, an injection timing determination module, a spark control module, and a fuel control module. The ignition timing determination module determines a first crank angle. The injection timing determination module selectively determines a second crank angle based on the first crank angle. The spark control module controls a spark plug to generate spark in a cylinder of an engine at the first crank angle. The fuel control module controls a fuel injector to deliver fuel to the cylinder at the second crank angle.

主权项

1. A system comprising:
an ignition timing determination module that determines a first crank angle; an injection timing determination module that selectively determines a second crank angle based on the first crank angle; a spark control module that controls a spark plug to generate spark in a cylinder of an engine at the first crank angle; and an fuel control module that controls a fuel injector to deliver fuel to the cylinder at the second crank angle.