Peter Schelhas

Electronic Diesel Control (EDC)

Electronic control of a diesel engine allows fuel-injection parameters to be varied precisely for different conditions. This is the only means by which a modern diesel engine is able to satisfy the many demands placed upon it. The EDC (Electronic Diesel Control) system is subdivided into three areas, “Sensors and desired-value generators”, “Control unit”, and “Actuators”.

Overview of common-rail systems

The demands placed on diesel-engine fuel-injection systems are continuously increasing. Higher pressures, faster switching times, and a variable rate-of-discharge curve modified to the engine operating state have made the diesel engine economical, clean, and powerful. As a result, diesel engines have even entered the realm of luxuryperformance sedans.

Overview of discrete cylinder systems

Diesel engines with discrete cylinder systems have a separate fuel-injection pump for each cylinder of the engine. Such individual fuel-injection pumps are easily adaptable to particular engines. The short high-pressure fuel lines enable the achievement of particularly good injection characteristics and extremely high injection pressures.