Gm Global Technolgoy Operations, Inc.

Vitor Lanznaster Penteado

J Michael Gwidt

In accordance with exemplary embodiments, methods and systems are provided for controlling knocking for an engine of a vehicle having a plurality of different types of fuel injectors and a combustion chamber. In an exemplary embodiment, the system includes one or more sensors of the vehicle and a processor. The one or more sensors are configured to measure an intensity of engine knocking for the engine. The processor is coupled to the one or more sensors, and is configured to at least facilitate adjusting a fuel injection ratio of respective amounts of fuel provided by the plurality of different types of fuel injectors to the combustion chamber, based on the intensity of the engine knocking.

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Walled Lake, MI, United States of America

Vitor Lanznaster Penteado