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Lee C Walker, B Jerry Song, Zhiping Steven Liu: Method and system for reducing turbo lag in an engine. Gm Global Technology Operations, October 20, 2011: US20110257867-A1

A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a turbo boost level module that determines a desired boost level based on the driver requested torque. The control module further includes a pulse determination module that ...


22
Zhiping Liu, B Jerry Song, Anupam Gangopadhyay, Ping Ge: Mode transition systems and methods for a sequential turbocharger. Gm Global Technology Operations, Harness Dickey & Pierce, February 17, 2011: US20110036086-A1

A system for a sequential turbocharger includes a mode selection module, a feed-forward selection module, and a control loop module. The mode selection module generates a control mode signal based on an engine speed signal, an engine torque signal, and an engine mode signal. The control mode signal ...


23
Vijay Ramappan, Darrell W Burleigh, B Jerry Song: Systems and methods for controlling engine combustion stability. GM Global Technology Operations, October 4, 2012: US20120247439-A1

A control system for an engine includes first and second modules. The first module determines an oxygen concentration within an intake manifold of the engine. The second module regulates a flow of exhaust gas recirculation (EGR) into the intake manifold based on the determined oxygen concentration. ...