Coordinated engine torque control

Internal-combustion engines – Engine speed regulator – By changing valve timing

Reexamination Certificate

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Details

C123S348000, C123S350000

Reexamination Certificate

active

07021282

ABSTRACT:
A torque control system for regulating operation of an engine includes a throttle that regulates air flow into the engine and a device that regulates a torque output of the engine. A first module determines a throttle area based on a desired manifold absolute pressure (MAP) and a desired manifold air flow (MAF) and a second module determines a device set-point based on a desired air per cylinder (APC) and an engine speed. A third module generates a throttle control signal to control the throttle based on the throttle area and generates a device control signal to control the device based on the device set-point.

REFERENCES:
patent: 5921219 (1999-07-01), Frohlich et al.
patent: 6308671 (2001-10-01), Reed et al.
patent: 6704638 (2004-03-01), Livshiz et al.
patent: 6761146 (2004-07-01), Livshiz et al.
patent: 2005/0056251 (2005-03-01), Stroh et al.

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