Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission
Currently, most hybrid electric vehicles (HEVs) equipped with automated mechanical transmission (AMT) are implemented with the conventional two-parameter gear shift schedule based on engineering experience. However, this approach cannot take full advantage of hybrid drives. In other words, the power...
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doaj-d25bf644dfff48a481078ad9277717222020-11-24T22:26:37ZengMDPI AGEnergies1996-10732016-03-019322010.3390/en9030220en9030220Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual TransmissionWenchen Shen0Huilong Yu1Yuhui Hu2Junqiang Xi3School of Mechanical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, ChinaDepartment of Mechanical Engineering, Politecnico di Milano, via G. La Masa 1, Milano 20156, ItalySchool of Mechanical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, ChinaCurrently, most hybrid electric vehicles (HEVs) equipped with automated mechanical transmission (AMT) are implemented with the conventional two-parameter gear shift schedule based on engineering experience. However, this approach cannot take full advantage of hybrid drives. In other words, the powertrain of an HEV is not able to work at the best fuel-economy points during the whole driving profile. To solve this problem, an optimization method of gear shift schedule for HEVs is proposed based on Dynamic Programming (DP) and a corresponding solving algorithm is also put forward. A gear shift schedule that can be employed in real-vehicle is extracted from the obtained optimal gear shift points by DP approach and is optimized based on analysis of the engineering experience in a typical Chinese urban driving cycle. Compared with the conventional two-parameter gear shift schedule in both simulation and real vehicle experiments, the extracted gear shift schedule is proved to clearly improve the fuel economy of the HEV.http://www.mdpi.com/1996-1073/9/3/220hybrid electric vehicle (HEV)automated mechanical transmission (AMT)gear shift scheduledynamic programming (DP) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wenchen Shen Huilong Yu Yuhui Hu Junqiang Xi |
spellingShingle |
Wenchen Shen Huilong Yu Yuhui Hu Junqiang Xi Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission Energies hybrid electric vehicle (HEV) automated mechanical transmission (AMT) gear shift schedule dynamic programming (DP) |
author_facet |
Wenchen Shen Huilong Yu Yuhui Hu Junqiang Xi |
author_sort |
Wenchen Shen |
title |
Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission |
title_short |
Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission |
title_full |
Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission |
title_fullStr |
Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission |
title_full_unstemmed |
Optimization of Shift Schedule for Hybrid Electric Vehicle with Automated Manual Transmission |
title_sort |
optimization of shift schedule for hybrid electric vehicle with automated manual transmission |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2016-03-01 |
description |
Currently, most hybrid electric vehicles (HEVs) equipped with automated mechanical transmission (AMT) are implemented with the conventional two-parameter gear shift schedule based on engineering experience. However, this approach cannot take full advantage of hybrid drives. In other words, the powertrain of an HEV is not able to work at the best fuel-economy points during the whole driving profile. To solve this problem, an optimization method of gear shift schedule for HEVs is proposed based on Dynamic Programming (DP) and a corresponding solving algorithm is also put forward. A gear shift schedule that can be employed in real-vehicle is extracted from the obtained optimal gear shift points by DP approach and is optimized based on analysis of the engineering experience in a typical Chinese urban driving cycle. Compared with the conventional two-parameter gear shift schedule in both simulation and real vehicle experiments, the extracted gear shift schedule is proved to clearly improve the fuel economy of the HEV. |
topic |
hybrid electric vehicle (HEV) automated mechanical transmission (AMT) gear shift schedule dynamic programming (DP) |
url |
http://www.mdpi.com/1996-1073/9/3/220 |
work_keys_str_mv |
AT wenchenshen optimizationofshiftscheduleforhybridelectricvehiclewithautomatedmanualtransmission AT huilongyu optimizationofshiftscheduleforhybridelectricvehiclewithautomatedmanualtransmission AT yuhuihu optimizationofshiftscheduleforhybridelectricvehiclewithautomatedmanualtransmission AT junqiangxi optimizationofshiftscheduleforhybridelectricvehiclewithautomatedmanualtransmission |
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