Engineers continue to master electronic controllers and software to help systems manage engine speeds and boost efficiency, to the ultimate benefit of both OEMs and end-users.
As the final set of Tier 4 regulations kick in for engines greater than 750 hp (560 kW), calibration efforts must contend with complex engine and aftertreatment systems. Engine manufacturers and service providers deal with this complexity, but does it need to be so?
Researchers characterize a 0-D model of a urea delivery module, oriented to model-based control and to the simulation of the system response to fault injections finalized to diagnosis validation.
Downsizing engine displacement, new materials, friction reduction, and advanced boosting and fuel-injection technologies have demonstrated potential in light-duty vehicles, and implementation is under way. FEV experts provide an outlook of how these technologies can improve the base engine for commercial applications with regard to future emissions and fuel-efficiency requirements.