ASCET-computer aided simulation of engine functions

Modern electronics opens up new prospects in automotive engineering. The various demands placed on spark ignition engines-many of them conflicting, such as high power output, low fuel consumption and low pollutant emissions-can now be reconciled in an optimum way. These technological advances and the engineering effort spent on engine management systems result in mechatronic systems like BOSCH-MOTRONIC. They combine fuel management and ignition systems controlled by a single microcomputer in accordance with common optimization criteria. This paper shows the process of developing engine management functions, e.g. a throttle valve controlling algorithm. The process is based on the real time simulation tool ASCET