SiL, HiL and Real-Time Modeling
Control System Modeling with GT-POWER Engine Models
See the Real-Time Brochure (PDF)
GT-POWER is the market leading engine simulation software, used by every major engine manufacturer for the design and development of their engines. Now, the same GT-POWER engine models created in the R&D departments can be used by the controls system engineer for ECU development and other controls modeling activities. GT-SUITE includes all the tools needed to generate a fast running, real time capable engine plant model from the existing GT-POWER model to produce a fully physical, crank angle resolved model capable of predicting pressure wave dynamics and in-cylinder combustion in either pure software (SiL) or in real time (HiL) applications. Even highly advanced engine models can be quickly created for SiL and HiL applications, such as the dual runner, variable valve timing and lift example shown below, easily derived in less than one day from a detailed GT-POWER model.
Fast and Accurate Engine (Plant) Models for Control System Modeling
GT-POWER has long been accepted as an industry standard engine modeling tool, with its state of the art Navier-Stokes pressure wave solver, detailed thermodynamics, and advanced combustion models. These same, highly validated solution methodologies are now available for fast running models (FRM’s), thus providing a foundation for highly accurate model development that control engineers can use for their modeling tasks. The GT-POWER FRM’s have the advantage of being based on a physically conservative formulation, thus it may be used with greater confidence in the results as compared to more simplistic models that have been developed and used in the past.
The FRM’s have proven to be highly accurate on both a micro and macro level, as illustrated below via a cylinder pressure comparison (left) and a comparison of boost pressure over a portion of a federal driving cycle (right).
Multiple Model Levels (Unsteady, MV, Quasi-Steady, Fully Integrated)
GT-SUITE is the only simulation tool to provide multiple model levels for real time applications. Users can choose between fully unsteady, crank angle resolved engine models derived directly from GT-POWER models, or from neural network based mean value engine models. The complete aftertreatment system may also be included within a real time simulation. With the GT-SUITE platform, the entire vehicle system shown below (includes engine, waterjacket cooling detail, oil circuit, underhood 3D model, transmission oil cooling, and controls) may be modeled for SiL applications with run times of just 5-10 times real time.
Product Highlights:
- Rapidly convert detailed GT-POWER model to fast running version
- Both physically based and mean value based engine models available
- Crank angle resolved to capture valve events, combustion, tuning
- Incorporate GT-POWER based engine models directly into the control system development process
- Supports both SiL and HiL, including systems from ETAS, dSpace, A&D, NI, Mathworks, and more
- Supports Controls models in Simulink, ASCET, and Veristand
- GT-SUITE is the only tool that provides two levels of engine models for control development
- Multi-pulse combustion capable, closed-loop combustion control
- Built in DOE and Neural Network trainer for MV model development
- Variable valve timing
- Variable valve lifet
- Full aftertreatment system control modeling, in real time!
- Multi-Wiebe based combustion model
- Variable geometry systems (dual runner, switching valves, etc.)
- Vehicle Model
- Drive Cycles, including new SC03
- Perform Warmup and full vehicle thermal/energy management studies
- More than just an engine model, includes entire vehicle and ancillaries
 For more information contact:(or contact us online) |
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| Gamma Technologies, Inc. 601 Oakmont Lane, Suite 220 Westmont, IL 60559 USA |
Tel. Fax. (630) 325-5849 Email:CAE@gtisoft.com Web:www.gtisoft.com |
APPLICATIONS
Engine Performance
Test Pressure Analysis
Exhaust Aftertreatment
Acoustics
SiL, HiL, real-time
Vehicle, driveline
Hybrid Vehicles
Cooling Systems
AC and Rankine
Lubrication and bearings
Fuel Injection
Valvetrain, camshaft
Cranktrain, crankshaft
Chain, gear, belt drive