Improving the energy efficiency of a vehicle with a series-parallel hybrid power plant by selecting rational operating and design parameters
Abstract
A method for reducing the fuel consumption per mile for parallel and series-parallel hybrid power units with a given electric energy consumption in the driving cycle by optimizing the operating and design parameters is proposed for automobile hybrid power units. The developed algorithm contains three successive stages: combining similar driving modes into groups, eliminating inefficient operating combinations of units, and subsequent multi-parameter evolutionary search. This allows for a significant reduction in the required computational costs. Using the example of the Toyota Prius ZW52, it is shown that a rational choice of gear ratios for the hybrid power unit and its regulation in accordance with the developed algorithm with a given electric energy balance ensures a reduction in fuel consumption per mile in the WLTC driving cycle by up to 7.38% without a significant deterioration in traction and speed properties.
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Review
Рецензент: В. А. Пенчук, д-р техн. наук, проф., ДОННАСА
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