Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition
Anti-roll and anti-pitch are important directions in the comprehensive research of automobiles. In order to improve the anti-roll and anti-pitch performance of the vehicle, an inerter was applied to the vehicle suspension system, and a 14 DOF vehicle nonlinear dynamics model was established. The inf...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | World Electric Vehicle Journal |
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| Online Access: | https://www.mdpi.com/2032-6653/14/10/297 |
| _version_ | 1797571940129439744 |
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| author | Yanling Liu Dongyin Shi Fu Du Xiaofeng Yang Kerong Zhu |
| author_facet | Yanling Liu Dongyin Shi Fu Du Xiaofeng Yang Kerong Zhu |
| author_sort | Yanling Liu |
| collection | DOAJ |
| description | Anti-roll and anti-pitch are important directions in the comprehensive research of automobiles. In order to improve the anti-roll and anti-pitch performance of the vehicle, an inerter was applied to the vehicle suspension system, and a 14 DOF vehicle nonlinear dynamics model was established. The influence of the change in inertance in the eight kinds of improved ISD (Inerter-Spring-Damper) suspension structures on the RMS (root mean square) value of performance indexes of roll, vertical, and pitch motion of the vehicle was studied. Based on this, the vehicle’s ISD structure with better performance was selected, and the NSGA-Ⅱ algorithm was adopted to optimize the selected structural parameters. The simulation results showed that the four kinds of suspension hadbetter comprehensive performance, and their structureswere, respectively, excluding the supporting spring in parallel, (1) an inerter in series with a spring and a damper in parallel, (2) a damper in series with a spring and an inerter in parallel, (3) an inerter and a damper in series, and (4) the damper in parallel with a spring and an inerter in series. The ISD suspension structure had better comprehensive performance under step steering braking, which was obviously better than the passive suspension, and effectively improved the vehicle ride comfort, anti-roll and anti-pitch performance. Under the hook steering braking, the lateral load transfer rate was used to evaluate the vehicle’s anti-rollover ability. The results showed that the ride comfort and anti-rollover ability of ISD suspension were better than those of passive suspension. Under the condition of taking into account the anti-pitching ability, the suspension consists of a supporting spring in parallel with an inerter, and a damper in series was better. |
| first_indexed | 2024-03-10T20:48:43Z |
| format | Article |
| id | doaj.art-48e52b30f3d54994a9c5969ab3736796 |
| institution | Directory Open Access Journal |
| issn | 2032-6653 |
| language | English |
| last_indexed | 2024-03-10T20:48:43Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | World Electric Vehicle Journal |
| spelling | doaj.art-48e52b30f3d54994a9c5969ab37367962023-11-19T18:32:15ZengMDPI AGWorld Electric Vehicle Journal2032-66532023-10-01141029710.3390/wevj14100297Topological Optimization of Vehicle ISD Suspension under Steering Braking ConditionYanling Liu0Dongyin Shi1Fu Du2Xiaofeng Yang3Kerong Zhu4School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, ChinaSchool of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, ChinaAnti-roll and anti-pitch are important directions in the comprehensive research of automobiles. In order to improve the anti-roll and anti-pitch performance of the vehicle, an inerter was applied to the vehicle suspension system, and a 14 DOF vehicle nonlinear dynamics model was established. The influence of the change in inertance in the eight kinds of improved ISD (Inerter-Spring-Damper) suspension structures on the RMS (root mean square) value of performance indexes of roll, vertical, and pitch motion of the vehicle was studied. Based on this, the vehicle’s ISD structure with better performance was selected, and the NSGA-Ⅱ algorithm was adopted to optimize the selected structural parameters. The simulation results showed that the four kinds of suspension hadbetter comprehensive performance, and their structureswere, respectively, excluding the supporting spring in parallel, (1) an inerter in series with a spring and a damper in parallel, (2) a damper in series with a spring and an inerter in parallel, (3) an inerter and a damper in series, and (4) the damper in parallel with a spring and an inerter in series. The ISD suspension structure had better comprehensive performance under step steering braking, which was obviously better than the passive suspension, and effectively improved the vehicle ride comfort, anti-roll and anti-pitch performance. Under the hook steering braking, the lateral load transfer rate was used to evaluate the vehicle’s anti-rollover ability. The results showed that the ride comfort and anti-rollover ability of ISD suspension were better than those of passive suspension. Under the condition of taking into account the anti-pitching ability, the suspension consists of a supporting spring in parallel with an inerter, and a damper in series was better.https://www.mdpi.com/2032-6653/14/10/297ISD suspensionvehicle modelNSGA-II algorithmvehicle stability |
| spellingShingle | Yanling Liu Dongyin Shi Fu Du Xiaofeng Yang Kerong Zhu Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition World Electric Vehicle Journal ISD suspension vehicle model NSGA-II algorithm vehicle stability |
| title | Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition |
| title_full | Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition |
| title_fullStr | Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition |
| title_full_unstemmed | Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition |
| title_short | Topological Optimization of Vehicle ISD Suspension under Steering Braking Condition |
| title_sort | topological optimization of vehicle isd suspension under steering braking condition |
| topic | ISD suspension vehicle model NSGA-II algorithm vehicle stability |
| url | https://www.mdpi.com/2032-6653/14/10/297 |
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