Supervisory control algorithm design of a 48v 4wd hybrid electric vehicle with fuel efficiency analysisopen access
- Authors
- Jeong, Kiyun; Ha, Seongmin; Lee, Hyeongcheol
- Issue Date
- Jan-2018
- Publisher
- Korean Society of Automotive Engineers
- Keywords
- 4 Wheel drive; 48V system; Belt driven Starter Generator(BSG); Fuel efficiency; Mild hybrid electric vehicle
- Citation
- Transactions of the Korean Society of Automotive Engineers, v.26, no.1, pp.131 - 141
- Indexed
- SCOPUS
KCI
- Journal Title
- Transactions of the Korean Society of Automotive Engineers
- Volume
- 26
- Number
- 1
- Start Page
- 131
- End Page
- 141
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/150697
- DOI
- 10.7467/KSAE.2018.26.1.131
- ISSN
- 1225-6382
- Abstract
- Presented in this paper is a 48 V-powernet-based powertrain structure with a front-wheel drive system that includes an engine and a 48 V BSG and a rear-wheel drive system driven by a traction motor without a mechanical link to the front-drive axle. The power distribution algorithm of the hybrid supervisory controller includes an electric drive mode by the rear-wheel drive motor as well as a hybrid electric control mode between the engine and the two drive motors. The results of the fuel economy simulation for the 4 WD 48 V mild hybrid system that was performed in the study are presented in this paper, along with the results of the analysis of the varying of the capacity of the rear-drive motor from 5 to 15 kW. The fuel efficiency improvement of the front engine is also compared with that of the BSG. This paper introduces a power distribution algorithm for the mild hybrid drive system model, and presents a design guideline for selecting the capacity of the rear-drive motor based on the simulation results for fuel economy and efficiency improvement. Copyright
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