Turbo-on-demand engine with cylinder deactivation
AssigneeGeneral Motors Corporation
InventorsChristopher H. Mader, Ko-Jen Wu, Carol Mader
Life of this patent
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Abstract
An engine control system in a vehicle including a variable displacement internal combustion engine, an intake manifold coupled to the variable displacement internal combustion engine, a first turbocharger supplying air to the intake manifold, a first waste gate regulating the boost of the turbocharger, and a controller for controlling the displacement of the variable displacement internal combustion engine.
Claims9
An engine control system in a vehicle comprising:
- a variable displacement internal combustion engine;
- an intake manifold coupled to said variable displacement internal combustion engine;
- a first turbocharger supplying air to said intake manifold;
- a first waste gate regulating the boost of said turbocharger;
- and
- a controller for controlling the displacement of said variable displacement internal combustion engine.
A turbocharging control system for a variable displacement engine comprising:
- a first group of cylinders in the variable displacement engine;
- a first exhaust manifold coupled to said first group of cylinders;
- a second group of cylinders in the variable displacement engine;
- a second exhaust manifold coupled to said second group of cylinders;
- a first turbocharger coupled to said first exhaust manifold;
- a second turbocharger coupled to said second exhaust manifold;
- and
- a first wastegate coupled to said first turbocharger, wherein said first waste gate gates exhaust to said second turbocharger when said engine is in a partially-displaced configuration.
A method of controlling a variable displacement internal combustion engine comprising the steps of:
- measuring a variable indicative of torque for a variable displacement internal combustion engine;
- varying the displacement of the variable displacement internal combustion engine with reference to the variable;
- providing a first turbocharger;
- providing a second turbocharger;
- providing a first waste gate valve;
- directing engine exhaust flow from said first turbocharger to said second turbocharger with said first waste gate valve in a partially-displaced configuration for the variable displacement internal combustion engine.
Dependencies are inferred from the claim text.