An Integrated Framework on Characterization, Control, and Testing of an Electrical Turbocharger Assist

作者：Zhao Dezong^*; Winward Edward; Yang Zhijia; Stobart Richard; Mason Byron; Steffen Thomas

来源：IEEE Transactions on Industrial Electronics, 2018, 65(6): 4897-4908.

DOI：10.1109/TIE.2017.2774726

• Electrical turbocharger assist (ETA)
• multivariable control
• real-time energy management
• system characterization
• testing framework design

Electrical turbocharger assist is one of the most critical technologies in improving fuel efficiency of conventional powertrain vehicles. However, strong challenges lie in high efficient operations of the device due to its complexity. In this paper, an integrated framework on characterization, control, and testing of the electrical turbocharger assist is proposed. Starting froma physical characterization of the engine, the controllability and the impact of the electrical turbocharger assist on fuel economy and exhaust emissions are both analyzed. A multivariable 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 based on a heavy-duty diesel engine is built. The proposed framework has been evaluated in simulations, physical simulations, and experiments. Results are presented for the developed system and the proposed framework that demonstrate excellent tracking performance, high robustness, and the potential for improvements in fuel efficiency.

• 出版日期2018-6