Next Article in Journal
Previous Article in Journal
Energies 2014, 7(8), 5400-5424; doi:10.3390/en7085400
Article

Dynamic Feedforward Control of a Diesel Engine Based on Optimal Transient Compensation Maps

1,* , 2
, 1
, 2
 and 2
Received: 3 July 2014; in revised form: 31 July 2014 / Accepted: 15 August 2014 / Published: 21 August 2014
View Full-Text   |   Download PDF [1477 KB, uploaded 21 August 2014]
Abstract: To satisfy the increasingly stringent emission regulations and a demand for an ever lower fuel consumption, diesel engines have become complex systems with many interacting actuators. As a consequence, these requirements are pushing control and calibration to their limits. The calibration procedure nowadays is still based mainly on engineering experience, which results in a highly iterative process to derive a complete engine calibration. Moreover, automatic tools are available only for stationary operation, to obtain control maps that are optimal with respect to some predefined objective function. Therefore, the exploitation of any leftover potential during transient operation is crucial. This paper proposes an approach to derive a transient feedforward (FF) control system in an automated way. It relies on optimal control theory to solve a dynamic optimization problem for fast transients. A partially physics-based model is thereby used to replace the engine. From the optimal solutions, the relevant information is extracted and stored in maps spanned by the engine speed and the torque gradient. These maps complement the static control maps by accounting for the dynamic behavior of the engine. The procedure is implemented on a real engine and experimental results are presented along with the development of the methodology.
Keywords: diesel engine; transient operation; feedforward (FF) control; dynamic optimization; optimal control diesel engine; transient operation; feedforward (FF) control; dynamic optimization; optimal control
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Mancini, G.; Asprion, J.; Cavina, N.; Onder, C.; Guzzella, L. Dynamic Feedforward Control of a Diesel Engine Based on Optimal Transient Compensation Maps. Energies 2014, 7, 5400-5424.

AMA Style

Mancini G, Asprion J, Cavina N, Onder C, Guzzella L. Dynamic Feedforward Control of a Diesel Engine Based on Optimal Transient Compensation Maps. Energies. 2014; 7(8):5400-5424.

Chicago/Turabian Style

Mancini, Giorgio; Asprion, Jonas; Cavina, Nicolò; Onder, Christopher; Guzzella, Lino. 2014. "Dynamic Feedforward Control of a Diesel Engine Based on Optimal Transient Compensation Maps." Energies 7, no. 8: 5400-5424.


Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert