| CPC F02D 13/0276 (2013.01) [F01L 1/047 (2013.01)] | 4 Claims |
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1. A method for operating an internal combustion engine,
the method comprising:
operating the internal combustion engine in a first operating state, wherein the internal combustion engine has: a plurality of cylinders each assigned a respective exhaust valve and intake valve, a crankshaft via which the internal combustion engine provides torque, an intake camshaft driven by the crankshaft to actuate the respective intake valves, and an exhaust camshaft driven by the crankshaft to actuate the respective exhaust valves; and
setting a second operating state different from the first operating state by:
adjusting the intake camshaft late by a first value that is in a range for 50 crank angle degrees to 120 crank angle degrees compared to the intake crankshaft in the first operating state,
adjusting the exhaust camshaft early by a second value that is in a range from 1 crank angle degree to 35 crank angle degrees compared to the exhaust camshaft in the first operating state, and
operating at least one cylinder in a decompression operation during which the at least one cylinder is operated in an unfired state and at least one other cylinder is operated in a fired state, and an exhaust gas from the at least one other cylinder is at least partially recirculated to the at least one other cylinder.
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