2134/27311
Dezong Zhao
Dezong
Zhao
Edward Winward
Edward
Winward
Zhijia Yang
Zhijia
Yang
Richard Stobart
Richard
Stobart
Byron Mason
Byron
Mason
Thomas Steffen
Thomas
Steffen
An integrated framework on characterization, control, and testing of an electrical turbocharger assist
Loughborough University
2017
Electrically assisted boosting system
System characterization
Multi-variable control
Real time energy management
Testing framework design
Engineering not elsewhere classified
2017-11-07 10:04:29
Journal contribution
https://repository.lboro.ac.uk/articles/journal_contribution/An_integrated_framework_on_characterization_control_and_testing_of_an_electrical_turbocharger_assist/9225626
Engine downsizing is a promising trend for
improving fuel efficiency of conventional powertrain vehicles. The reduced engine capacity can be compensated by better air delivery through electrically assisted boosting
systems, while the most critical technology is the electric turbocharger. In this paper, an integrated framework for characterization, control, and testing of the electric turbocharger
is proposed. Starting from a physical characterization of the engine, the impact of the electric turbocharger on fuel economy and exhaust emissions are both analyzed, as well as its controllability. A multi-variable robust controller is designed to regulate the dynamics of the electrified turbocharged engine in a systematic approach. To minimize the fuel consumption in real time, a supervisory
level controller is designed to update the setpoints of key controlled variables in an optimal way. Furthermore, a cutting-edge experimental platform of a heavy-duty electrified turbocharged diesel engine is built. The demonstrated excellent tracking performance, high robustness, and improvements on fuel efficiency in experimental results prove the effectiveness of both the developed system and the proposed control strategy.