Design and Control Considerations for a Series Heavy Duty Hybrid Hydraulic Vehicle
Date Published: 2009-11-02
Paper Number:2009-01-2717
DOI: 10.4271/2009-01-2717
Citation:
Surampudi, B., Nedungadi, A., Ostrowski, G., Montemayor, A. et al., "Design and Control Considerations for a Series Heavy Duty Hybrid Hydraulic Vehicle," SAE Technical Paper 2009-01-2717, 2009, doi:10.4271/2009-01-2717.
Hybrid hydraulic power trains are a natural fit for heavy duty vehicle applications due to their high power density. This paper describes the analytical formulae available for sizing a series hybrid hydraulic vehicle without changing the engine size. Sizing of pump, accumulator and motor are addressed specifically. A control strategy is also suggested for operating the engine and powertrain pressure close to the best efficiency zones. An example is then given using an FMTV (Family of Medium Tactical Vehicles) platform with a CAT C7 engine. Simulation results are generated using VPSET (Vehicle Propulsion Systems Evaluation Tool), an SwRI-developed vehicle modeling and simulation tool. The hydraulic components are sized according to the recommendations in this paper. The suggested control strategy is implemented in VPSET and performance of the series hydraulic hybrid configuration is compared with that of a conventional powertrain.
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
