Patent ID: 9169787
Filing Date: 2015-10-27
Classification: F02D,Y02T

Abstract:
1. An engine control system comprising: an air control module that determines a desired mass of air per cylinder (APC) based on a torque request and that selectively increases the desired APC in response to a command to deactivate N cylinders of an engine; and a valve control module that disables intake and exhaust valves of the N cylinders of the engine in response to the command, that determines intake and exhaust valve timing based on the desired APC, that controls camless intake and exhaust valve actuators of M other cylinders based on the intake and exhaust valve timing, respectively, and that increases intake valve duration of the M other cylinders as the desired APC increases, wherein the engine includes Q cylinders, M and N are integers greater than zero, and M plus N equals Q.