CAM phaser and DOD coordination for engine torque control

Details CAM phaser and DOD coordination for engine torque control CAM phaser and DOD coordination for engine torque control

2005-11-22

2005-11-22

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090170, C123S399000

Reexamination Certificate

active

06966287

ABSTRACT:
A torque control system for regulating operation of a displacement on demand engine that is operable in an activated mode and a deactivated mode includes a throttle that regulates air flow into the engine and a cam phaser that regulates a torque output of the engine. A first module determines a throttle area based on a desired deactivated manifold absolute pressure (MAP) and a desired mass air flow (MAF) and a second module determines a desired cam phaser position based on an engine speed and a transitional air per cylinder (APC) that is determined based on one of a desired deactivated APC and desired activated APC. A third module generates a throttle control signal to control the throttle based on the throttle area and a fourth module generates a cam phaser control signal to control the cam phaser based on the desired cam phaser position.

REFERENCES:
patent: 6250283 (2001-06-01), Russell et al.
patent: 6704638 (2004-03-01), Livshiz et al.
patent: 6817336 (2004-11-01), Glugla et al.

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