A Method to Reduce the Calculation Time for an Internal Combustion Engine Model DaimlerChrysler AG

Format:

Conference/Event

Author/Creator:

Allmendinger, Klaus, author.

Conference Name:

SAE 2001 World Congress (2001-03-05 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2001

Summary:

Coming along with the present movement towards the ultimately variable engine, the need for clear and simple models for complex engine systems is rapidly increasing. In this context Common-Rail-Systems cause a special kind of problem due to of the high amount of parameters which cannot be taken into consideration with simple map-based models. For this reason models with a higher amount of complexity are necessary to realize a representative behavior of the simulation. The high computational time of the simulation, which is caused by the increased complexity, makes it nearly impossible to implement this type of model in software in closed loop applications or simulations for control purposes. In this paper a method for decreasing the complexity and accelerating the computing time of automotive engine models is being evaluated which uses an optimized method for each stage of the diesel engine process. Except for the gas exchange phase, this approach works analytically and independent of engine maps. Investigations result in the capability of the above mentioned approach to perform engine simulations while reducing the computing time

Notes:

Vendor supplied data

Publisher Number:

2001-01-0574

Access Restriction:

Restricted for use by site license