METHOD FOR CONTROLLING A DEFECTIVE INJECTOR

摘要

There is described a control method, in particular for use with an engine, for shutting down a fluid ejection valve having a leakage malfunction. The valve is connected in series after a flow fuse adapted to fall into a shut-down-state when a fluid flow through said flow fuse exceeds a predetermined flow value. A step of detecting the leakage malfunction of the valve is followed by a step of controlling the valve for ejecting a fluid flow exceeding the predetermined flow value to thereby trigger the flow fuse to cut off the valve from fluid supply. The predetermined flow value may be a value representing characteristic of the flow including cumulated fluid amounts measured by volume or mass. When the valve is a fuel injector of an internal combustion engine, the detection step evaluates at least one operating state parameter of the engine.