Automobile Applied Technology ›› 2025, Vol. 50 ›› Issue (4): 62-66.DOI: 10.16638/j.cnki.1671-7988.2025.004.011
• Design and Research • Previous Articles
PENG Jiayan, DUAN Lian, WEN Jiaqi, GUAN Qingyun
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彭家燕,段炼,温嘉祺,管清云
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Abstract: Aiming at the thermal damage problem of a plug-in hybrid electric vehicle (PHEV) double torsion rod suspension, STAR-CCM+ and TAITherm software are used for coupling simulation to obtain the temperature field of the double torsion rod suspension, and the causes of overheating are analyzed. Then an optimal scheme of engine room bottom protection plate with V-shaped flow guide structure is proposed, and the influence of the angle of flow guide gas dam on the ambient temperature of double torsion rod suspension bushing is analyzed. The simulation results show that the optimized scheme can better direct the low-temperature air flow outside the vehicle into the designated position of the engine room through the gas dam and V-shaped diversion structure, reduce the temperature field of the double torsion rod suspension and the surrounding area, and meet the temperature resistance requirement of the ambient temperature ≤90 ℃. Finally, the optimization scheme is installed on the real vehicle and the whole vehicle test is carried out to verify. The collected test results are compared with the simulation results, and the relative error is only 3.1%, which proved that the simulation analysis had good accuracy and reliability, and finally successfully solved the thermal damage problem of the double-torsion suspension.
Key words: GAC Automotive Engineering Institute
摘要: 针对某插电式混合动力汽车(PHEV)双抗扭拉杆悬置的热害问题,采用 STAR-CCM+ 和 TAITherm 软件进行耦合仿真,获得双抗扭拉杆悬置的温度场,并分析过热原因。随后提 出了一种带 V 型导流结构的机舱底护板的优化方案,并分析了导流气坝夹角对双抗扭拉杆悬 置衬套环境温度的影响。仿真结果表明,该优化方案能够在低速工况下将车外的低温气流通 过气坝及 V 型导流结构较好地导入机舱的指定位置,降低了双抗扭拉杆悬置及周边的温度场, 满足其环境温度≤90 ℃的耐温要求。最后将优化方案搭载于实车并开展整车试验验证,将采 集的试验结果与仿真结果进行对比,相对误差最高仅为 3.1%,证明了仿真分析具备较好的准 确性及可靠性,最终成功地解决了双抗扭拉杆悬置的热害问题。
关键词: 双抗扭拉杆悬置;热害问题;仿真优化;V 型导流结构;气坝
PENG Jiayan, DUAN Lian, WEN Jiaqi, GUAN Qingyun. Optimization and Verification of Heat Damage Problem of Double Anti-torsion Rod Mount in a PHEV Vehicle[J]. Automobile Applied Technology, 2025, 50(4): 62-66.
彭家燕,段炼,温嘉祺,管清云. 某 PHEV 车型双抗扭拉杆悬置热害问题的 优化及验证[J]. 汽车实用技术, 2025, 50(4): 62-66.
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URL: http://www.aenauto.com/EN/10.16638/j.cnki.1671-7988.2025.004.011
http://www.aenauto.com/EN/Y2025/V50/I4/62