Method and equipment for automatic control of process variables of IC engine, provides decoupling of individual control signal or different process variables

摘要

A controller controls more than one process variable of an IC engine (1). It can e.g. have one control input (33) determining the duration of fuel delivery which governs the cylinder pressure and a second input (34) which controls the time of maximum pressure based on the angular position of the crankshaft. Consequently this represents a coupled multi-variable system. The invention proposes that decoupling circuits (25,26) are provided so that a specific control signal only acts only on it's related process variable.