Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting
Traditional pure electric cars generally adopt single-speed transmission for cost consideration. However, with the renewal and iteration of technology, small electric cars are all developed in the direction of power performance and environmental protection. Gear shifting makes it possible for the mo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/16/6044 |
| _version_ | 1797584866263433216 |
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| author | Qiang Zhao Shengming Zhou Yongheng Yue Bohang Liu Qin Xie Na Zhang |
| author_facet | Qiang Zhao Shengming Zhou Yongheng Yue Bohang Liu Qin Xie Na Zhang |
| author_sort | Qiang Zhao |
| collection | DOAJ |
| description | Traditional pure electric cars generally adopt single-speed transmission for cost consideration. However, with the renewal and iteration of technology, small electric cars are all developed in the direction of power performance and environmental protection. Gear shifting makes it possible for the motor to work in a more efficient range, which possibly improves the performance of the entire powertrain. In this paper, a small electric car is designed, its power parameters are matched, and the energy-saving space and effect brought by adding multiple-gear shifting transmissions are discussed. To begin, the power-matching design was carried out, and then the transmission ratio was determined by particle swarm optimization. Finally, the power performance and fuel economy of this designed car equipped with different types of transmissions were analyzed and compared through simulation experiments. The results show that the electric car equipped with two-speed transmission has improvements in most important indicators, among which the acceleration time of 0 to 100 km/h is decreased by 17.7%, and the power consumption is reduced by 1.8%. To sum up, the feasibility of applying multiple-gear shifting to small electric cars is verified, and the experimental results provide a valuable reference for the development of electric cars. |
| first_indexed | 2024-03-10T23:58:48Z |
| format | Article |
| id | doaj.art-ee1f7a76ee93452bb76e40d670d157b4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T23:58:48Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ee1f7a76ee93452bb76e40d670d157b42023-11-19T00:57:55ZengMDPI AGEnergies1996-10732023-08-011616604410.3390/en16166044Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear ShiftingQiang Zhao0Shengming Zhou1Yongheng Yue2Bohang Liu3Qin Xie4Na Zhang5Department of Vehicle Engineering, College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaDepartment of Vehicle Engineering, College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaDepartment of Traffic Engineering, School of Civil and Traffic Engineering, Northeast Forestry University, Harbin 150040, ChinaDepartment of Vehicle Engineering, College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaSoftware Control Section, Technical Center, SAIC-GM-Wuling Automobile Co., Ltd., Liuzhou 545027, ChinaDepartment of Automation Engineering, School of Electrical and Control Engineering, Heilongjiang University of Science and Technology, Harbin 150022, ChinaTraditional pure electric cars generally adopt single-speed transmission for cost consideration. However, with the renewal and iteration of technology, small electric cars are all developed in the direction of power performance and environmental protection. Gear shifting makes it possible for the motor to work in a more efficient range, which possibly improves the performance of the entire powertrain. In this paper, a small electric car is designed, its power parameters are matched, and the energy-saving space and effect brought by adding multiple-gear shifting transmissions are discussed. To begin, the power-matching design was carried out, and then the transmission ratio was determined by particle swarm optimization. Finally, the power performance and fuel economy of this designed car equipped with different types of transmissions were analyzed and compared through simulation experiments. The results show that the electric car equipped with two-speed transmission has improvements in most important indicators, among which the acceleration time of 0 to 100 km/h is decreased by 17.7%, and the power consumption is reduced by 1.8%. To sum up, the feasibility of applying multiple-gear shifting to small electric cars is verified, and the experimental results provide a valuable reference for the development of electric cars.https://www.mdpi.com/1996-1073/16/16/6044pure electric cardynamic performanceenergy efficiencyoptimal gear shiftingparticle swarm optimization |
| spellingShingle | Qiang Zhao Shengming Zhou Yongheng Yue Bohang Liu Qin Xie Na Zhang Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting Energies pure electric car dynamic performance energy efficiency optimal gear shifting particle swarm optimization |
| title | Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting |
| title_full | Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting |
| title_fullStr | Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting |
| title_full_unstemmed | Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting |
| title_short | Assessing the Dynamic Performance and Energy Efficiency of Pure Electric Car with Optimal Gear Shifting |
| title_sort | assessing the dynamic performance and energy efficiency of pure electric car with optimal gear shifting |
| topic | pure electric car dynamic performance energy efficiency optimal gear shifting particle swarm optimization |
| url | https://www.mdpi.com/1996-1073/16/16/6044 |
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