Developing powertrains for commercial applications will in future focus more on improving fuel economy and hence on reducing CO2 emissions. Overall vehicle costs are also a key factor. Producing the best possible system for a specific vehicle application requires an integrated approach to the entire powertrain while giving consideration to the combustion process, exhaust-gas aftertreatment, energy-recovery systems or hybridization as well as system automation. Controlling energy flows between the various subsystems as well as ensuring the lowest possible level of exhaust emissions and fuel consumption, the energy management system plays a central part in optimizing the operation of complex powertrain architectures.
Powertrain Simulation
We use our own customized simulation platform in the commercial applications segment for reproducing the system behavior of commercial vehicles and mobile machines (earth moving machinery, agricultural applications etc.) in virtual reality. IAV’s VeLoDyn for ComApps simulation tool is based on Matlab/Simulink. With architecture being modular and depending on development focus, the tool can be used for adapting the degree of detailing for the various subsystems. This platform gives us the basis for examining the suitability of different powertrain components under aspects of optimizing overall efficiency in actual operation.
We also use VeLoDyn for ComApps to simulate energy management as well as driving or working conditions with a view to ensuring the efficiency of subsystems (such as exhaust-gas aftertreatment). The tool supports the development process at all stages in taking products to the point of manufacturing readiness. With feasibility and concept studies providing the starting point, powertrain derivatives can be easily developed. The simulation tool also provides the capability of superimposing engine speed and load demands on a real powertrain set up on an automated dynamometer.
System Connection and Automation
Connecting and automating systems in the truck & bus as well as agricultural and construction machinery segments is a further focus in our work to improve the efficiency of mobile machines. To this end, we develop mechatronic and electronic systems, components and functions for mechanics, hydraulics, electrics and interconnection. Our portfolio covers the entire development process – model-based concept definition, standard-compliant hardware and software engineering, overall system integration of process technology as well as reliable and validated volume solutions and in-production support.