Fuel economy potential for a power split type hybrid system with 4-speed transmission by adding parallel mode
- Authors
- Kim, Y.[Kim, Y.]; Son, H.[Son, H.]; Choi, S.[Choi, S.]; Jung, J.[Jung, J.]; Yun, J.[Yun, J.]; Kim, H.[Kim, H.]
- Issue Date
- 2018
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- 4-speed transmission; dynamic programming; power split-parallel hybrid
- Citation
- 2018 13th International Conference on Ecological Vehicles and Renewable Energies, EVER 2018, pp.1 - 9
- Journal Title
- 2018 13th International Conference on Ecological Vehicles and Renewable Energies, EVER 2018
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/24244
- DOI
- 10.1109/EVER.2018.8362356
- ISSN
- 0000-0000
- Abstract
- In this study, fuel economy potential of a power split hybrid configuration with 4-speed was investigated by adding the parallel mode. First, system efficiency of the power split configuration with 4-speed was investigated using network analysis. From the network analysis results, it was found that the efficiency of the target hybrid system was improved by the added 4-speed gear steps, which provides four mechanical points. To maintain the system operation at the mechanical points, a new power split-parallel architecture was proposed by adding a brake at the MG1 shaft, which provides a parallel mode instead of the power split mode. To evaluate the fuel economy potential of the proposed power split-parallel configuration, backward simulations were performed using dynamic programming by considering the drivetrain losses. From the backward simulations, it was found that the fuel economy of power split-parallel configuration with 4-speed is improved. © 2018 IEEE.
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- Appears in
Collections - Engineering > School of Mechanical Engineering > 1. Journal Articles
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