Engines Lib

Contact

Claytex Services Ltd. : enquiries@claytex.com

Industry / Process

  •  Automotive
  •  Marine
  •  Energy

Short Description

Two versions of the library are being developed MVEM (Mean Value Engine Models) and CAREM (Crank Angle Resolved Engine models). The architecture is defined to support different engine configurations. 3d mechanical representation of the engine allows the user to investigate mount forces, excitation of driveline with full cyclic torque, cranking (start-up), engine warm up and detailed friction modelling.

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Long Description

MVEM (Mean Value Engine Model):

This level 1 of the Engines library is mainly map and neural network based and can achieve real-time simulation. This version of the engine library is capable of predicting cycle averaged values for torque, thermal effects and emissions. Typical applications of this version of the library would be:

  •  to investigate different control algorithms and to investigate their effect on the engine transient response and over drive cycles
  •  to investigate driveability, i.e. transient torque output in to the transmission and reactions onto the engine mounts
  •  for SIL and HIL testing of the control system
  •  methods for predicting engine torque and emissions are map based and/or neural network

CAREM (Crank Angle Resolved Engine Model):

This level 2 of the Engines library is a more detailed model, producing crank angle resolved This version of the engine library is capable of predicting crank angle resolved values for torque, thermal effects and friction with more detailed intake, exhaust (inc. emission control) and combustion models. Typical applications of this version of the library would be for investigating/modelling:
  •  Mount forces
  •  Excitation of driveline with full cyclic torque
  •  Cranking (start-up) and engine warm up
  •  Detailed friction modelling
  •  Methods for predicting engine torque are based on a Wiebe function
  •  Advanced combustion models are being developed by IFP and will be compatible with the CAREM architecture

Engine Mechanics:

Uses a new library for modelling Rotating MultiBody systems incorporating efficient rotational mechanics modelling:

Release History

Release Date

Release ID

Compliant
with Modelica

Dependencies

Tested with

December 2009

Engines MVEM v.1

3.0

 MSL 3.0

Dymola 7.3

March 2010

Engines CAREM v.1

3.0

 MSL 3.0

Dymola 7.3

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Description

   

Links

URL

Information or News

http://www.modelica.org/events/modelica2009/Proceedings/.../0085.pdf

Modelica 2009 conference paper