Method for starting multi-cylinder direct injecting internal combustion engine with group-wise independently controllable injection valves in the cylinders, involves providing fuel from injection pump through fuel rail

摘要

The method involves providing fuel from an injection pump through a fuel rail. The injection valves of the starter cylinder group inject an increased start up quantity of fuel into the starter cylinder, while starting up the internal combustion engine in cold start conditions. The injection valves of a shut-off cylinder group inject no or less than the increased start up quantity of fuel into the shut-off cylinder.