System and method for regulating exhaust gas recirculation in an engine

摘要

The present disclosure includes a system and method for regulating exhaust gas recirculation (“EGR”) in an engine. In one embodiment, the system may include a knock sensor coupled to the engine that sends a signal corresponding to at least one operating condition of the engine to a controller. The controller may estimate an amount of EGR gas administered to the engine and regulate the amount of EGR gas being administered to the engine when the estimated amount of EGR gas is not an effective amount.

主权项

1. An internal combustion engine system, comprising:
a controller comprising a processor and a non-transitory memory encoding processor-executable instructions to:
receive a signal from at least one knock sensor coupled to a combustion engine, wherein the combustion engine is coupled to an exhaust gas recirculation (EGR) system;determine a value of at least one operating condition based on the signal from the at least one knock sensor;estimate an amount of EGR gas in the combustion engine based at least on the value of the at least one operating condition; andgenerate a control signal for adjusting a position of an EGR valve of the EGR system based on the estimated amount of EGR gas in the combustion engine.