Optimal control of a diesel-electric powertrain during an up-shift
To investigate the optimal controls of a diesel-electric
powertrain during a torque controlled gearshift, a powertrain
model is developed. A validated diesel-electric
model is used as the power source and the transmission
dynamics are described by different sets of differential
equations during torque phase, synchronization
phase and inertia phase of the gearshift. Using
the developed model, multi-phase optimal control
problems are formulated and solved. The trade-off
between gearshift duration and driveline oscillations
are calculated and efficient gearshift transients for a
diesel-electric and pure diesel powertrain are then compared
and analyzed.
Vaheed Nezhadali and Lars Eriksson
2016
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