A Global Optimal Energy Management System for Hybrid Electric off-road Vehicles

Energy management strategies greatly influence the power performance and fuel economy of series hybrid electric tracked bulldozers. In this paper, we present a procedure for the design of a power management strategy by defining a cost function, in this case, the minimization of the vehicle’s fuel consumption over a driving cycle. To explore the fuel-saving potential of a series hybrid electric tracked bulldozer, a dynamic programming (DP) algorithm is utilized to determine the optimal control actions for a series hybrid powertrain, and this can be the benchmark for the assessment of other control strategies. The results from comparing the DP strategy and the rule-based control strategy indicate that this procedure results in approximately a 7% improvement in fuel economy.

Language

  • English

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Filing Info

  • Accession Number: 01634708
  • Record Type: Publication
  • Source Agency: SAE International
  • Report/Paper Numbers: 2017-01-0425
  • Files: TRIS, SAE
  • Created Date: Mar 29 2017 4:38PM