Title
Improved torque tracking on internal combustion engine test benches equipped with EURO 6-engines
Abstract
Test benches for internal combustion engines are used for many purposes in the automotive industry with strong advantages in terms of reproducibility and costs. The torque and the speed at the crankshaft of the engine must be tracked simultaneously to simulate the operation of an internal combustion engine in a vehicle. Single-input single-output proportional-integral-controllers are usually used to this end. Additional limitations have been introduced in the Engine Control Unit to meet the continuously strengthened emission levels. Especially, for new engines these limitations lead to significant overshoots in the torque tracking which have to be prevented in any case. The limitations are studied and the impacts to the tracking are analyzed in this paper. The existing proportional-integral-controller is extended based on this analysis. In particular, the controller parameters are scheduled with respect to the change of the torque reference and the tracking error. No model of the plant is required for controller design, the controller parameters can be tuned quickly and easily during the set-up of a test bench. Measurements on a test bench equipped with a passenger car Diesel engine confirm the improvements compared to the industrial standard.
Year
DOI
Venue
2013
10.1109/CCA.2013.6662748
Control Applications
Keywords
Field
DocType
PI control,automobile industry,control system synthesis,diesel engines,mechanical testing,torque control,EURO 6-Engines,automotive industry,controller design,controller parameter scheduling,crankshaft,emission levels,engine control unit,internal combustion engines,passenger car diesel engine,single-input single-output proportional-integral-controller,speed tracking,test bench,torque reference,torque tracking,tracking error
Internal combustion engine,Automotive engineering,Stall torque,Control theory,Longitudinal engine,Crankshaft,Test bench,Computer science,Control theory,Control engineering,Engine control unit,Diesel engine
Conference
ISSN
Citations 
PageRank 
1085-1992
0
0.34
References 
Authors
7
4
Name
Order
Citations
PageRank
Thomas Stanger110.71
Thomas E. Passenbrunner2175.92
Helmut Kokal352.08
del Re, L.45213.29