MODELICA - Powertrain Library

Enables the rapid modeling and simulation of the entire vehicle powertrain system including the resulting motion of the vehicle. This enables the accurate prediction of vehicle attributes such as performance, fuel economy and drivability, which in turn accelerates the development of the powertrain control systems and components.

Powertrain Modeling & Simulation

The Modelica based Powertrain Library delivers engine, transmission, clutch, driveline and chassis models and components for the rapid modeling and simulation powertrain systems in the context of a complete vehicle.  The library provides primarily 1D rotational mechanical components for vehicle powertrain systems. Optionally, all 3D mechanical effects can be taken into account, e.g. when mounting a powertrain on a multi-body vehicle dynamics model.

Key Features

  • Wide range of easy-to-use components of transmission and driveline models with varying levels of modeling detail
  • Support for real-time simulation such as HIL test of ECUs
  • Compatible with the other automotive Modelica libraries such as the Vehicle Dynamics and Smart Electric Drives libraries
  • Efficient and robust handling of speed and torque dependent friction
  • Analysis of 3D effects e.g. torques reactions, gyroscopic effects, etc.
  • Open models for full insight, easily modifiable

Typical Applications

Efficiency of composite gearboxes. Basic gear-pairing components are provided to model any type of planetary gearbox. The efficiency of each pairing can be easily taken into account and used for computation of a gear's overall efficiency.

Fuel consumption optimization. By using either interactive parameter adjustments or automatically using optimization routines the fuel consumption of an automatic transmission vehicle can be predicted and the shift maps optimized to minimize the fuel used.

Active Driveline Systems. The effect on vehicle handling of active driveline systems can be investigated by coupling the Powertrain and Vehicle Dynamics libraries

Benefits

  • Systems simulation to drive higher vehicle performance, fuel efficiency, improved drivability and gear shift quality
  • Reduced simulation time and cost since a single library is used to model the complete powertrain system
  • Robust simulation and higher efficiency as one or two interactions over the set of dynamically coupled friction elements is usually sufficient
  • Modelica standard language for intuitive modeling

Integrate Multiple Engineering Disciplines

The Powertrain Library is part of the powerful CATIA Systems Engineering solution. The library can be used with both Dymola and CATIA V6 Dynamic Behavior Modeling, either on its own or with other Modelica Libraries, to model and simulate complex systems that can span multiple engineering disciplines.