Hardware-in-the-loop validation of a power management strategy for hybrid powertrains

             

Hardware-in-the-loop validation of a power management strategy for hybrid powertrains

Abstract

Previously, a hybrid powertrain management strategy was developed that controls the power sources based on frequency content, mitigating aggressive engine transients. This article presents a hardware-in-the-loop validation of this strategy, with a real engine and battery integrated into a diesel hybrid electric vehicle simulation, thereby allowing for a realistic evaluation of fuel economy, soot emissions, and battery life. Considering an aggressive drive cycle and a state-of-charge regulation strategy as a benchmark, the frequency-based strategy yields 5.9% increase in fuel economy, 62.7% decrease in soot emissions, and 23% reduction in effective Amp-hours processed, which should yield an increase in battery life.

Keywords

  • Hardware-in-the-loop simulation;
  • Power management;
  • Hybrid electric vehicles;
  • Optimization;
  • Validation

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