Diesel engine fuel injection timing control system.

摘要

An electronic control unit (30) provides closed loop control of the instant at which an injector (14) injects fuel into the cylinder (12) of a diesel engine (10). The unit (30) computes a desired instant of combustion from input values from a speed transducer (16) and a load transducer (24). Actual instant of combustion is given by a crank angle sensor (22) at the time when a detector (22) senses combustion. The error signal between desired and actual instants of combustion modifies a signal setting the advance of injection over ignition to determine the actual moment of injection by the injector (14).