In
order to meet emissions targets, it is necessary to maintain
ever tighter control of the combustion process. Sophisticated
electronic fuel injections systems are now the norm,
and to these are being added more complex air handling
systems which could incorporate wastegated turbochargers,
VGTTM, EGR devices, exhaust
brakes, decompression brakes, exhaust aftertreatment
and so on. The turbocharger designer needs to understand
the complex interaction between these various components
of the total air system and the engine. The aim is
to optimise the system as a whole, rather than each
individual component.
Cummins Turbo Technologies has developed stand alone electronic control systems to understand
the fundamental static and dynamic behaviour of our products, and we now work
together with the engine manufacturer and the fuel system supplier to develop
the optimum control strategies and control algorithms. In several cases we have
provided dynamic models of our products to be utilised during the design of the
overall engine management control system. |
