Optimal Control Of Engine Controlled Gearshift For A Diesel-Electric Powertrain With Backlash

Gearshift optional control of a hybrid powertrain with a lumped/decoupled trans mission model and backlash dynamics in the driveline is studied.. model is used for a heavy duty powertrain including a validated mean value diesel engine model with electric generator, transmission dynamics representing the dynamics of the automated manual transmission system and driveshaft flexibilities. Backlash dynamics are also included in the driveline model by introducing a switching function. By applying numerical optimal control methods and dividing the gearshift process into separate phases, optimization problems are solved to investigate the minimum time and low Jerk gearshift transients. The controls are also calculated with fuel penalties added to the minimum Jerk optimization and the transients are analyzed. (C) 2016, IFAC (International Federation of Automatic. Control) Hosting, by Elsevier Ltd. All rights reserved.