Road applicability of hybrid electric vehicle integrated with waste heat recovery system.

• Dual heat source high efficiency Organic Rankine cycle system. • Energy management strategies for complex power source vehicle systems. • Strategy parameter optimization and tuning for road condition adaptation. • Results of hybrid and integrated system selection for different road conditions. Developing hybrid electric vehicle architectures and Organic Rankine Cycle-based waste heat recovery for heavy commercial vehicles can improve engine efficiency and reduce energy consumption. Previous studies have focused on a single type of hybrid integrated with a simple Organic Rankine Cycle system, with engine efficiency to be further improved. In order to investigate the applicability of different hybrid configurations in different road conditions, this paper establishes series, parallel and 48 V mild hybrid simulation models based on SIMULINK software, as well as a model integrated with an efficient Organic Rankine cycle system, and operates them on highway and suburban road conditions respectively. The optimal selection of hybrid and integrated configurations under different road conditions is derived: the parallel hybrid and integrated system is selected for highway conditions. For suburban road conditions, hybrid only is selected in series, and 48 V mild hybrid configuration is selected after integrating the Organic Rankine Cycle system. The modelling of the waste heat recovery system and the derived hybrid selection basis provide a reference for energy saving and emission reduction of heavy-duty vehicles. [ABSTRACT FROM AUTHOR]