Design and test of flexible chassis automatic tracking steering system.
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| Title: | Design and test of flexible chassis automatic tracking steering system. |
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| Authors: | Song Shujie1,2 foodssj@snnu.edu.cn, Li Yining3 liyining_work@163.com, Qu Jiwei3 738524407@qq.com, Zhou Wei3 614145334@qq.com, Guo Kangquan3,4 jdgkq@nwsuaf.edu.cn |
| Source: | International Journal of Agricultural & Biological Engineering. Sep2017, Vol. 10 Issue 5, p45-54. 10p. |
| Subjects: | Automobile chassis, Computational steering (Computer science), Wheatstone bridge, Steering gear, Automatic tracking |
| Abstract: | In order to develop an innovative omnidirectional non-homonymic flexible chassis (FC), the four-wheel steering control method of FC was designed by a new concept called off-centered steering (OCS) and the automatic tracking steering system was analyzed. Novelty of this wheel concept lies in the non-conventional positioning of the steering axis and wheel axis. Additionally, the steering axis of steerable wheel was motorized with an on/off electrometrical brake to overcome a hyper-motorization issue inherent to the wheel's geometrical properties and hold the steering position. Based on the off-centered steering characteristics of FC, the Wheatstone bridge was applied in the steering control system. The bridge resistances are used to track target steering angles and the actual steering angle, respectively. The output voltage of the bridge is exploited to adjust the wheel's speed so that steering and automatic tracking could be achieved. Experiments at different speeds, loadings, and target steering angles were conducted. Results showed that the chassis can indeed be controlled independently and its steering range is from -90° to 90°, which indicated the automatic tracking steering system was effective. The electromagnetic lock (EL) can significantly improve the stability of the chassis and reduce the vibration. Loading has no significant effect on the accuracy of the steering angle and the time it takes to complete steering tasks. The time taken to complete a forward steering task showed a linear relationship with the required angles, but was independent of rotation speed; for backward steering, time was related to both target angles and rotation speed. The results presented in this research may provide a reference for the steering control strategies of the four-wheel individual drive and four-wheel (4WID/4WIS) vehicle in the future. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Agricultural & Biological Engineering is the property of International Journal of Agricultural & Biological Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 125907149 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Design and test of flexible chassis automatic tracking steering system. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Song+Shujie%22">Song Shujie</searchLink><relatesTo>1,2</relatesTo><i> foodssj@snnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li+Yining%22">Li Yining</searchLink><relatesTo>3</relatesTo><i> liyining_work@163.com</i><br /><searchLink fieldCode="AR" term="%22Qu+Jiwei%22">Qu Jiwei</searchLink><relatesTo>3</relatesTo><i> 738524407@qq.com</i><br /><searchLink fieldCode="AR" term="%22Zhou+Wei%22">Zhou Wei</searchLink><relatesTo>3</relatesTo><i> 614145334@qq.com</i><br /><searchLink fieldCode="AR" term="%22Guo+Kangquan%22">Guo Kangquan</searchLink><relatesTo>3,4</relatesTo><i> jdgkq@nwsuaf.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Agricultural+%26+Biological+Engineering%22">International Journal of Agricultural & Biological Engineering</searchLink>. Sep2017, Vol. 10 Issue 5, p45-54. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Automobile+chassis%22">Automobile chassis</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+steering+%28Computer+science%29%22">Computational steering (Computer science)</searchLink><br /><searchLink fieldCode="DE" term="%22Wheatstone+bridge%22">Wheatstone bridge</searchLink><br /><searchLink fieldCode="DE" term="%22Steering+gear%22">Steering gear</searchLink><br /><searchLink fieldCode="DE" term="%22Automatic+tracking%22">Automatic tracking</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In order to develop an innovative omnidirectional non-homonymic flexible chassis (FC), the four-wheel steering control method of FC was designed by a new concept called off-centered steering (OCS) and the automatic tracking steering system was analyzed. Novelty of this wheel concept lies in the non-conventional positioning of the steering axis and wheel axis. Additionally, the steering axis of steerable wheel was motorized with an on/off electrometrical brake to overcome a hyper-motorization issue inherent to the wheel's geometrical properties and hold the steering position. Based on the off-centered steering characteristics of FC, the Wheatstone bridge was applied in the steering control system. The bridge resistances are used to track target steering angles and the actual steering angle, respectively. The output voltage of the bridge is exploited to adjust the wheel's speed so that steering and automatic tracking could be achieved. Experiments at different speeds, loadings, and target steering angles were conducted. Results showed that the chassis can indeed be controlled independently and its steering range is from -90° to 90°, which indicated the automatic tracking steering system was effective. The electromagnetic lock (EL) can significantly improve the stability of the chassis and reduce the vibration. Loading has no significant effect on the accuracy of the steering angle and the time it takes to complete steering tasks. The time taken to complete a forward steering task showed a linear relationship with the required angles, but was independent of rotation speed; for backward steering, time was related to both target angles and rotation speed. The results presented in this research may provide a reference for the steering control strategies of the four-wheel individual drive and four-wheel (4WID/4WIS) vehicle in the future. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Agricultural & Biological Engineering is the property of International Journal of Agricultural & Biological Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.25165/j.ijabe.20171005.2525 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 45 Subjects: – SubjectFull: Automobile chassis Type: general – SubjectFull: Computational steering (Computer science) Type: general – SubjectFull: Wheatstone bridge Type: general – SubjectFull: Steering gear Type: general – SubjectFull: Automatic tracking Type: general Titles: – TitleFull: Design and test of flexible chassis automatic tracking steering system. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Song Shujie – PersonEntity: Name: NameFull: Li Yining – PersonEntity: Name: NameFull: Qu Jiwei – PersonEntity: Name: NameFull: Zhou Wei – PersonEntity: Name: NameFull: Guo Kangquan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 19346344 Numbering: – Type: volume Value: 10 – Type: issue Value: 5 Titles: – TitleFull: International Journal of Agricultural & Biological Engineering Type: main |
| ResultId | 1 |
