Vehicle engine performance control - matches ignition timing fuel injection and fuel ratio to engine loading

摘要

The engine performance control controls the air/fuel ratio supplied to the engine cylinder dependent on the air intake pressure and interrupts the fuel mixture supply dependent on the engine loading. The fuel ratio is strengthened when the engine is again put under load, after idling, relative to the normal fuel ratio. Each engine cylinder has a fuel injection valve receiving a pulse for initiating the fuel injection supplied by a pulse generator responsive to the angular position of the crankshaft. The pulses are sequentially blocked in a pattern corresponding to the engine loading. A timing pulse generator provides pulses determining the opening duration of the injection valve and uses a counter controlled by an engine operating parameter and a multivibrator which can be switched between different time constants via a logic circuit.