Title: Power management of a hybrid electric powertrain system - design, power flow control, and optimisation targets
Authors: M. Marx; M. Özbek; D. Söffker
Addresses: Chair of Dynamics and Control, University of Duisburg-Essen, 47057 Duisburg, Germany ' Denso Automotive Deutschland GmbH, Aachen Engineering Centre, Friedrich-List Allee 42, D-41844 Wegberg, Germany ' Chair of Dynamics and Control, University of Duisburg-Essen, 47057 Duisburg, Germany
Abstract: This paper discusses several aspects concerning the evaluation of hybrid electric powertrain systems. Using the example of a fuel-cell/supercap-based hybrid electric powertrain system, the influence of the power management on typical evaluation parameters such as efficiency, availability of the system and its components is discussed. Based on experimental investigation on a given (pre-known) load profile, an optimisation approach is presented using simple operation strategies. It can be shown that after a few iteration steps a near-optimal solution is found.
Keywords: power management; energy management; supercapacitors; range extenders; efficiency; availability; component lifetime; DC-DC converter; hybrid electric powertrains; hybrid electric vehicles; HEVs; power flow control; optimisation; fuel cells.
International Journal of Powertrains, 2014 Vol.3 No.2, pp.221 - 241
Accepted: 15 Jan 2013
Published online: 21 Jun 2014 *