The various operating scenarios of hybrid electric vehicles (HEVs) require the design of suitable power splitting strategies for the hybrid drivetrain. A compromise between low complexity and high efficiency is always an issue for the power management implementation. In this paper the parallel HEV is assumed to operate under a power splitting strategy based on vehicle velocity and battery state of charge thresholds. The off-line minimization of a cost function related to the vehicle electrical and fuel consumptions determines the velocity-based quantization levels and the corresponding ratios of the power splitting between the actuators. The effectiveness of the proposed approach is verified through numerical simulations of the new European driving cycle and the worldwide harmonized light vehicle test procedure.
A velocity-thresholds power splitting optimization for hybrid electric vehicles
Baccari, S;Vasca, F
2019
Abstract
The various operating scenarios of hybrid electric vehicles (HEVs) require the design of suitable power splitting strategies for the hybrid drivetrain. A compromise between low complexity and high efficiency is always an issue for the power management implementation. In this paper the parallel HEV is assumed to operate under a power splitting strategy based on vehicle velocity and battery state of charge thresholds. The off-line minimization of a cost function related to the vehicle electrical and fuel consumptions determines the velocity-based quantization levels and the corresponding ratios of the power splitting between the actuators. The effectiveness of the proposed approach is verified through numerical simulations of the new European driving cycle and the worldwide harmonized light vehicle test procedure.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
