Fuel injection control system for fuel injection device i.e. fuel injection valve, has fuel injection control circuit to supply control signals, where pulse width of signal is adjusted so that control valves are completely controlled

摘要

The system has a fuel injection control circuit (130) with a load switch and supplying pulsed loading control signals during a load time period for loading of each piezo-stack (41) for a power supply of each stack by applying a voltage at each stack, if the switch is switched on and off. Fuel injection devices (1) inject fuel from nozzles (2) during the period. A pulse width of one of the signal that is supplied to the switch with a moment during the period is adjusted so that individual control valves (3) of the devices are completely controlled within the pulse width.