Fuel injection control for IC engine - has sensors on injector needle for actual injection period and engine speed sensor for processor to compute exact fuel amounts

摘要

The injectors (6) are each fitted with sensors (7) to monitor the needle movements and to provide fuel injection pulses (8). A processor (9) computes the exact fuel amounts injected from the injector signals and the engine speed signal. A programmed characteristic for the engine provides a simple fuel value, which is used to operate the exhaust gas monitor (10). The system is used for a self igniting engine, eg. diesel engine and provides exact control parameters. The injector needle sensor can be a simple Hall effect device to provide rectangular signals for the processor. ADVANTAGE - Simple engine control, adapted to engine type, improved exhaust emission control.