Model-based predictive anti-jerk control

Comfort is an increasingly important issue when buying a car. Modern diesel engines generate a high engine torque already at low engine speed, which may cause oscillations in the driveline of the vehicle. These oscillations are experienced as unpleasant jerking by the driver. The objective of this article is to present a model-based control concept that prevents the driveline from oscillating, a so-called anti-jerk control. A theoretical model of the driveline of a car will be presented, the parameters of which are identified by measured data. As a measure for the oscillations in the driveline, the difference between engine speed and wheel speed is used. A model-based predictive controller is designed with the help of the root locus technique. The controller concept is evaluated on a test car with a diesel engine. (c) 2005 Elsevier Ltd. All rights reserved.