Solutions
GT-SUITE exhaust aftertreatment modeling simulates catalyst and filter performance to reduce NOx, CO, HC, and PM emissions across all drive cycles.
Solution Overview
GT-xCHEM enables the user to model any AT device in isolation or within an integrated system, while providing the user the complete flexibility to modify and impose the participating kinetic reaction mechanisms.
The design of this library is consistent with our goal to provide a single tool for simulation of all aspects of engine and vehicle systems. This library allows modeling the exhaust aftertreatment system together with vehicle, engine, thermal management, and control systems, making this tool uniquely suitable for collaborative development.
Application Highlights
GT-xCHEM supports every aftertreatment architecture with real-time, ECU-compatible integration for vehicle and control system development.
Model any aftertreatment component in isolation or as part of a fully integrated system encompassing engine, vehicle, driveline, and controls. This unified approach eliminates the need for separate tools and enables comprehensive system-level trade-off analysis.
Achieve real-time simulation performance through virtual coupling with engine, vehicle, and control sub-systems, without compromising physical accuracy. This capability is essential for hardware-in-the-loop (HIL) testing and ECU-compatible plant model development.
Simulate electrically heated catalyst systems with electrode-level detail to optimize cold-start thermal management and catalyst light-off strategies. This capability directly supports compliance with increasingly stringent low-temperature emissions regulations.
Develop and validate control strategies for urea injection, ammonia dosing, and fuel-based DPF regeneration within a single simulation environment. Tight integration with control sub-systems enables rapid calibration and optimization of dosing logic.
Evaluate aftertreatment system performance across standardized drive cycles and real-world route-based scenarios, including RDE compliance assessments. The fast quasi-steady solver enables efficient transient simulations at scale.
Support the full spectrum of modern aftertreatment architectures, including SCR-DPF, EHC, TWC, DOC, LNT, GPF, and Methane Oxidation Catalysts, within a single, consistent modeling framework. This breadth ensures the tool remains applicable as powertrain technologies evolve toward zero-carbon and low-carbon fuels.
Answers to common questions about exhaust aftertreatment modeling with GT-xCHEM.
No. All reaction kinetics are defined entirely through an intuitive graphical interface. Nothing is hard-wired, and no compiler or user subroutines are required.
Yes. The Quasi-Steady solver is designed for exactly this. It runs efficiently enough for full drive cycle simulations and is compatible with real-time execution for HIL and ECU plant model development.
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