TY - JOUR
T1 - PMP-based power management strategy for two-state variable FCHV systems and its optimality
AU - Zheng, Chunhua
AU - Xu, Guoqing
AU - Cha, Suk Won
AU - Park, Yeong il
AU - Lim, Wonsik
PY - 2014/4
Y1 - 2014/4
N2 - The battery temperature affects the total fuel consumption in a hybrid vehicle, as it influences the battery efficiency and further influences the powertrain efficiency. In this research, a Pontryagin's Minimum Principle (PMP)-based optimal control problem for a fuel cell hybrid vehicle (FCHV) is formulated in which the battery temperature is designated as a second-state variable other than the battery state of charge (SOC). Moreover, optimality of the two-state variable PMP-based power management strategy is discussed based on a conclusion derived from previous research. Simulation results of the PMP-based strategy are compared to those of Dynamic Programming (DP) approach. It is concluded from this research that the two-state variable PMP-based power management strategy guarantees global optimality under certain battery assumptions. Meanwhile, the proposed strategy saves much time compared to DP approach.
AB - The battery temperature affects the total fuel consumption in a hybrid vehicle, as it influences the battery efficiency and further influences the powertrain efficiency. In this research, a Pontryagin's Minimum Principle (PMP)-based optimal control problem for a fuel cell hybrid vehicle (FCHV) is formulated in which the battery temperature is designated as a second-state variable other than the battery state of charge (SOC). Moreover, optimality of the two-state variable PMP-based power management strategy is discussed based on a conclusion derived from previous research. Simulation results of the PMP-based strategy are compared to those of Dynamic Programming (DP) approach. It is concluded from this research that the two-state variable PMP-based power management strategy guarantees global optimality under certain battery assumptions. Meanwhile, the proposed strategy saves much time compared to DP approach.
KW - Fuel cell hybrid vehicle
KW - Optimality
KW - Pontryagin's minimum principle
KW - Power management strategy
KW - Two-state variable system
UR - https://www.scopus.com/pages/publications/84898460483
U2 - 10.1007/s12541-014-0398-6
DO - 10.1007/s12541-014-0398-6
M3 - Article
AN - SCOPUS:84898460483
SN - 2234-7593
VL - 15
SP - 769
EP - 776
JO - International Journal of Precision Engineering and Manufacturing
JF - International Journal of Precision Engineering and Manufacturing
IS - 4
ER -
