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| 环境温度和充气压力对轮胎滚动阻力的影响 |
| Research on Influence of Ambient Temperature and Pressure on Rolling Resistance of Tire |
| Received:August 25, 2023 Revised:August 25, 2023 |
| DOI： |
| 中文关键词: 轮胎；滚动阻力；温度；充气压力；电动汽车 |
| 英文关键词: tire；rolling resistance；temperature；tire pressure；electric vehicle |
| 基金项目:国家重点研究计划 |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | Song Gan | SONG Gan | hebin_tms@foxmail.com | | JIANG Long | BYD Automobile Industry Co., Ltd. | | | HUANG Liufang | BYD Automobile Industry Co., Ltd. | | | DONG Yidong | BYD Automobile Industry Co., Ltd. | | | TANG Meng | BYD Automobile Industry Co., Ltd. | | | HE Bin* | BYD Automobile Industry Co., Ltd. | hebin_tms@foxmail.com |
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| 中文摘要: |
| 使用反拖法与扭矩法分析环境温度对稳态行驶时轮胎温度、充气压力和滚动阻力的影响，研究低温环境条件下轮胎滚动阻力与充气压力的关系。结果表明：随着环境温度的降低，稳态行驶时轮胎温度和充气压力下降，滚动阻力提高，－30 ℃环境温度下轮胎滚动阻力提高到25 ℃时的1.5～2.2倍；低温环境下，轮胎滚动阻力随着充气压力的降低而提高；环境温度和充气压力越低，轮胎滚动阻力对温度和充气压力变化的敏感性越强。降低轮胎滚动阻力对温度的敏感性以及提高充气压力是降低轮胎低温滚动阻力的有效措施。 |
| 英文摘要: |
| The influence of the ambient temperature on the temperature，inflation pressure and rolling resistance of the tire during stable-state driving was analysed by using the reverse-draw and torque method，and the relationship between the rolling resistance and inflation pressure of the tire under low-temperature environmental conditions was studied.The results showed that as the ambient temperature decreased，the temperature and inflation pressure of the tire during steady-state driving decreased，and the rolling resistance increased. At an ambient temperature of －30 ℃, the rolling resistance of the tire increased to 1.5 to 2.2 times than that of 25 ℃.In low-temperature environment，the rolling resistance of the tire increased with the decrease of inflation pressure.The lower the ambient temperature and inflation pressure was，the stronger the sensitivity of the rolling resistance of the tire to changes in temperature and inflation pressure was.Reducing the sensitivity of the tire rolling resistance to temperature and increasing inflation pressure were effective measures to reduce low-temperature rolling resistance of the tire. |
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