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http://dx.doi.org/10.7467/KSAE.2015.23.4.436

Proposal of a Novel Plug-in-hybrid Power System Based on Analysis of PHEV System  

Kim, Jinseong (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Park, Yeongil (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.4, 2015 , pp. 436-443 More about this Journal
Abstract
In order to develop the PHEV(plug-in hybrid electric vehicle), the specific power transmission systems considering the PHEV system characteristics should be applied. A PHEV applied to series-parallel type hybrid power transmission system is a typical example. In this paper, the novel hybrid power systems are proposed by analyzing the existing PHEV system. The backward simulation program is developed to analyze the fuel efficiency of hybrid power system. Quasi-static models for each components such as engine, motor, battery and vehicle are included in the developed simulation program. To obtain an optimal condition for hybrid systems, an optimization approach called the dynamic programming is applied. The simulation is performed in various driving cycles. A weakness for the existing system is found through the simulation. To compensate for a discovered weakness, novel hybrid power systems are proposed by adding or moving the clutch to the existing system. Comparing the simulation results for each systems, the improved fuel efficiency for proposed systems are verified.
Keywords
Plug-in hybrid electric vehicle(PHEV); PHEV power transmission system; Backward simulation; Clutch; Fuel efficiency;
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  • Reference
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