Method, for controlling fuel injection of automotive internal combustion engine, has multiple control of control valve which is actuated by a piezoelectric actuator

摘要

The method includes a compression unit (2) for compressing the fuel, and an actuator (8) for the control valves (16,17) which control the injector needle (12). During the different injection phases or during the injection cycle, one or two of the control valves are controlled many times in a rhythmic manner by a piezoelectric actuator.