Journal
CONTROL ENGINEERING PRACTICE
Volume 17, Issue 2, Pages 245-254Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.conengprac.2008.07.005
Keywords
Predictive control; Dynamic programming; Fuel-optimal control
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The scenario studied is a drive mission for a heavy diesel truck. With aid of an on board road slope database in combination with a GPS unit, information about the road geometry ahead is extracted. This look-ahead information is used in an optimization of the velocity trajectory with respect to a criterion formulation that weighs trip time and fuel consumption. A dynamic programming algorithm is devised and used in a predictive control scheme by constantly feeding the conventional cruise controller with new set points. The algorithm is evaluated with a real truck on a highway, and the experimental results show that the fuel consumption is significantly reduced. (C) 2008 Elsevier Ltd. All rights reserved.
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