Optimising the energy efficiency and transient response of diesel engines through an electric turbocharger
conference contributionposted on 2019-03-26, 15:28 authored by Dezong Zhao, Richard Stobart, Byron Mason
The electric turbocharger provides great potential for vehicle fuel efficiency improvement, exhaust emissions reduction and transient response acceleration. It makes the engine runs as a hybrid system so critical challenges are raised in energy management and control. This paper proposes a realtime energy management strategy for the electric turbocharger. A multi-variable explicit model predictive controller is designed to regulate the key variables in the engine air system, while the optimal setpoints of those variables are generated by a high level controller. The controllers work in a highly efficient way to achieve the optimal energy management. This strategy has been validated in simulations and experiments. Excellent tracking performance and high robustness demonstrate the effectiveness of the proposed method.
This work was co-funded by Innovate UK, under a grant for the Low Carbon Vehicle IDP4 Programme (TP14/LCV/6/I/BG011L). This work was also co-funded by Engineering and Physical Sciences Research Council of U.K. under the EPSRC-UKRI Innovation Fellowship scheme (EP/S001956/1).
- Aeronautical, Automotive, Chemical and Materials Engineering
- Aeronautical and Automotive Engineering