초록 ▼

An engine control system in a vehicle including a variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller operates the variable displacement internal combustion engine in a parti

An engine control system in a vehicle including a variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller operates the variable displacement internal combustion engine in a partially displaced operating mode upon startup to increase exhaust gas temperature.

대표청구항 ▼

1. An engine control system in a vehicle comprising:a variable displacement internal combustion engine; a controller for controlling the displacement of said variable displacement compression ignition internal combustion engine; a NOX trap coupled to the exhaust of said variable displacement interna

1. An engine control system in a vehicle comprising:a variable displacement internal combustion engine; a controller for controlling the displacement of said variable displacement compression ignition internal combustion engine; a NOX trap coupled to the exhaust of said variable displacement internal combustion engine, wherein said controller operates said variably displacement internal combustion engine in a partially displaced operating mode upon startup to increase exhaust gas temperature; wherein said controller deactivates a portion of the cylinders in the variable displacement internal combustion engine; wherein fuel is injected into said deactivated cylinders to generate partial oxidation products; and wherein said partial oxidation products are released into the exhaust of said variable displacement internal combustion engine to regenerate said NOx trap. 2. The engine control system of claim 1, wherein said variable displacement internal combustion engine is a diesel engine.3. The engine control system of claim 1, wherein said partial oxidation products include carbon monoxide, hydrogen, hydrocarbons or nitrogen.4. The engine control system of claim 1, wherein said variable displacement internal combustion engine is an eight cylinder engine.5. The engine control system of claim 1 wherein said variable displacement internal combustion engine is a six cylinder engine.6. The engine control system of claim 1, further including at least one turbocharger coupled to the exhaust of said variable displacement internal combustion engine.7. A method of controlling a variable displacement diesel internal combustion engine comprising:operating the variable displacement diesel internal combustion engine in a partially displaced operating mode; injecting fuel in deactivated cylinders in said variable displacement internal combustion engine to generate partial oxidation products; and releasing said partial oxidation products into an exhaust stream of said variable displacement diesel internal combustion engine to regenerate a catalytic device. 8. The method of claim 7, wherein said catalytic device is a NOx trap.