By Topic

Optimized Control of a Pressure-Wave Supercharger: A Model-Based Feedforward Approach

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Spring, P. ; Meas. & Control Lab., ETH Zurich ; Onder, C. ; Guzzella, L.

Engine downsizing and boosting is known to substantially improve the fuel economy of passenger cars. Compared to traditional boosting devices, pressure-wave superchargers (PWS) have several advantages. In particular, the substantial delays in the torque dynamics caused by conventional turbochargers can be avoided by a careful tuning of the pressure-wave processes taking place inside the PWS. These processes can be tuned to match the changing thermodynamic boundary conditions of the engine system by changing the rotational speed, by opening or closing a bypass channel, and by adjusting the offset between the two rotor casings. The optimal choice of these control actions is not trivial such that a purely experimental approach is not possible. Accordingly, two models are developed that are able to predict the pressure wave dynamics. They are validated using data measured on an engine test bench. The second model which is based on a lumped-parameter approach, forms the basis for a feedforward controller. The synthesis of such a controller and its validation on the same engine test bench is described as well

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:15 ,  Issue: 3 )