Power Loss Evaluation of an E-Axle Gearbox Considering the Influence of Gear Oil Factors
An accurate power loss prediction in the gearbox is desirable for improving vehicle efficiency. To achieve this objective, evaluating the power loss is necessary. However, power loss is influenced by factors such as the gearbox structure, operating conditions, and gear oil formulation, making power...
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Published in | Lubricants Vol. 12; no. 1; p. 11 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
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Abstract | An accurate power loss prediction in the gearbox is desirable for improving vehicle efficiency. To achieve this objective, evaluating the power loss is necessary. However, power loss is influenced by factors such as the gearbox structure, operating conditions, and gear oil formulation, making power loss evaluation a bottleneck in practice. Therefore, a systematic modeling methodology was developed to evaluate the gearbox power loss in an E-Axle that focuses on the influence of the gear oil factors in the load and no-load cases. The gearbox used in a light-duty truck E-Axle was tested to verify the proposed model. The test was performed under various operating speeds, input loads, and oil temperatures, and four types of gear oil with different formulations were also included to quantify their influence on the power loss. The results showed that the gearbox power loss was significantly influenced by the E-Axle operating conditions, oil temperatures, and different gear oil formulations, promoting different power losses. The comparison results showed good consistency between the predicted power loss and the measured data. The proposed methodology can be utilized to effectively predict the power loss of the E-Axle gearbox and further improve the E-Axle efficiency by selecting suitable oil formulations and adjusting oil temperatures. |
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AbstractList | An accurate power loss prediction in the gearbox is desirable for improving vehicle efficiency. To achieve this objective, evaluating the power loss is necessary. However, power loss is influenced by factors such as the gearbox structure, operating conditions, and gear oil formulation, making power loss evaluation a bottleneck in practice. Therefore, a systematic modeling methodology was developed to evaluate the gearbox power loss in an E-Axle that focuses on the influence of the gear oil factors in the load and no-load cases. The gearbox used in a light-duty truck E-Axle was tested to verify the proposed model. The test was performed under various operating speeds, input loads, and oil temperatures, and four types of gear oil with different formulations were also included to quantify their influence on the power loss. The results showed that the gearbox power loss was significantly influenced by the E-Axle operating conditions, oil temperatures, and different gear oil formulations, promoting different power losses. The comparison results showed good consistency between the predicted power loss and the measured data. The proposed methodology can be utilized to effectively predict the power loss of the E-Axle gearbox and further improve the E-Axle efficiency by selecting suitable oil formulations and adjusting oil temperatures. |
Audience | Academic |
Author | Hou, Yuanjing Liu, Hongwei Zhang, Lin Hu, Xiaoyu Yan, Shufa Kong, Zhuo |
Author_xml | – sequence: 1 givenname: Shufa orcidid: 0000-0002-6122-146X surname: Yan fullname: Yan, Shufa – sequence: 2 givenname: Zhuo surname: Kong fullname: Kong, Zhuo – sequence: 3 givenname: Hongwei surname: Liu fullname: Liu, Hongwei – sequence: 4 givenname: Lin surname: Zhang fullname: Zhang, Lin – sequence: 5 givenname: Xiaoyu surname: Hu fullname: Hu, Xiaoyu – sequence: 6 givenname: Yuanjing surname: Hou fullname: Hou, Yuanjing |
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Copyright | COPYRIGHT 2024 MDPI AG 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. |
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SubjectTerms | Bearings E-Axle gearbox Efficiency Energy dissipation Friction Gearboxes Influence Light duty trucks Model testing oil formulation power loss evaluation Reynolds number Shafts (machine elements) Velocity |
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Title | Power Loss Evaluation of an E-Axle Gearbox Considering the Influence of Gear Oil Factors |
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