초록 ▼

A method for cylinder cut-in in an internal combustion engine, with the engine having on a portion of its cylinders. The charge changing valves can be cut out as well as a switchable fuel supply, both of which can be switched from a cut-out or cut-off state to a cut-in state and vice versa. In order

A method for cylinder cut-in in an internal combustion engine, with the engine having on a portion of its cylinders. The charge changing valves can be cut out as well as a switchable fuel supply, both of which can be switched from a cut-out or cut-off state to a cut-in state and vice versa. In order to provide a method for cylinder cut-in that permits a safe transition from operation in which they are cut out to one in which they are not cut out, and by which the effects of this switch are exhaust behavior are minimized, the charge changing valves are cut in first and then, after checking to determine whether the charge changing valves have been switched, the fuel supply is cut in to the cylinders that were previously cut out.

대표청구항 ▼

[ What is claimed is:] [1.] A method for cylinder cut-in in an internal combustion engine having a plurality of cylinders, at least one of the cylinders having switchable charge changing valves and a switchable fuel supply, the switchable charge changing valves and the switchable fuel supply being s

[ What is claimed is:] [1.] A method for cylinder cut-in in an internal combustion engine having a plurality of cylinders, at least one of the cylinders having switchable charge changing valves and a switchable fuel supply, the switchable charge changing valves and the switchable fuel supply being switchable between a cutout state and a cut-in state, the internal combustion engine being connected to a regulated catalytic converter and a lambda probe being used for control, said method comprising the steps of:cutting in the charge changing valves,determining whether the charge changing valves have been switched to the cut-in state, andcutting in the fuel supply to the cylinders,replacing a lambda probe signal by a replacement signal at least during the steps of cutting in the charge changing valves, determining whether the charge changing valves have been switched, and cutting in the fuel supply to the cylinders, andselecting the replacement signal so that an air ratio between exhaust from the cylinders which are in the cut-in state and exhaust from the cylinders which are in the cut out state is essentially equal to 1.