Gas exchange and combustion analysis (GCA)
Accurate combustion analysis can help with engine design, efficiency
improvements or pollutants reduction by providing instantaneous
feedback on the combustion process. It can also convey detailed combustion
information to help speed up the engine calibration process.
AVL GCA is a thermodynamic analysis tool based on measured data.
The engine’s intake, cylinder and exhaust are considered in detail.
GCA calculates the complete cycle in an iterative matter, firstly “
combustion” then “gas exchange”. By using the measured pressure
traces, values can be determined that otherwise can only be acquired
with a lot of effort, or even not at all e.g. residual gas content or
Therefor GCA is called “The Virtual Sensor”
Calibration of a simulation model by measurement is mandatory in
case high accuracy is required. The calibration process requires data
exchange between BOOST and GCA, therefore the consistency
of these two calculation programs is necessary. Both use the same
calculation core, therefore consistency is guaranteed.
Your benefits at a glance
• Deep insight into the phenomena
connected with the combustion chamber
provides understanding of the combustion
• Acquisition of values that cannot be measured.
Verified results by plausibility checks
• Full integration of AVL indicating software
and post-processing software leads to
reduction of interfaces
THE VIRTUAL SENSOR