Patent ID: 9506397
Filing Date: 2016-11-29
CPC Classification: F01N,F02B,F02D,Y02T

Claim Text:
1. A method for an engine, comprising: estimating, via an electronic controller, exhaust pressure of exhaust gas from the engine based on motor current of an actuator of a wastegate sampled at a first timing; detecting, via the electronic controller, cylinder imbalance of the engine based on motor current of the actuator of the wastegate sampled at a second timing, the second timing adjusted relative to the first timing; adjusting a first actuator via the electronic controller to adjust intake and/or exhaust valve timing of intake and/or exhaust valves of the engine when the cylinder imbalance is detected; and adjusting a second actuator via the electronic controller to adjust an engine operating parameter of the engine based on the estimated exhaust pressure.