Method for determining control duration of injector of common-rail-injection system of internal combustion engine of motor car, involves determining duration of injector based on parameter that characterizes pressure drop in rail throttle

摘要

The method involves damping pressure pulsations in a high pressure pipe that is guided from a high pressure accumulator to an injector over a rail throttle of an internal combustion engine. Control duration of the injector is determined by an engine control device based on a parameter that characterizes pressure drop in the rail throttle. The pressure drop in the rail throttle is determined before initial operation of a common-rail-injection system, where the injector is controlled by the engine control device. An independent claim is also included for a device for determining control duration of an injector of a common-rail-injection system of an internal combustion engine.