主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

汽车实用技术 ›› 2022, Vol. 47 ›› Issue (9): 111-115.DOI: 10.16638/j.cnki.1671-7988.2022.009.024

• 测试试验 • 上一篇    

正交试验法在加油提前跳枪预测模型中的应用

宋立廷,胡结兵   

  1. 泛亚汽车技术中心有限公司
  • 出版日期:2022-05-15 发布日期:2022-05-15
  • 通讯作者: 宋立廷
  • 作者简介:宋立廷(1986—),男,硕士,工程师,研究方向为燃油系统,E-mail:songliting.2009@163.com。

Application of Orthogonal Test Method to Prediction Model of Refueling Premature Shut-off

SONG Liting, HU Jiebing   

  1. Pan Asia Technical Automotive Center Limited Company
  • Online:2022-05-15 Published:2022-05-15
  • Contact: SONG Liting

摘要: 汽车国六排放标准燃油系统因引入了车载油气回收系统,加油时背压增大,提前跳枪 风险提高。文章以加油管转弯半径、水平段长度和垂直高度这三个因素的四个参数水平为研 究对象,基于正交试验法设计了 16 种加油管方案,并进行性能试验,得到不同组合方案下加 油的最高加油速率。通过非线性多元回归方法建立加油提前跳枪预测模型,并对模型进行试 验验证。加油管参数对加油性能影响的灵敏度分析得到影响加油提前跳枪的关键因素。分析 结果表明,加油管垂直高度对加油提前跳枪风险影响最大,加油管转弯半径、水平段长度和 垂直高度优水平分别为 100 mm、362 mm 和 644 mm。

关键词: 车载油气回收系统;加油提前跳枪;预测模型;加油管;正交试验法

Abstract: Due to the introduction of the on-board refueling vapor recovery system in the national VI emission standard fuel system of the automobile, the back pressure increases during refueling, and the risk of jumping the gun in advance increases. The four parameter levels of turning radius, horizontal section length and vertical height of refueling tube are taken as the research object in this paper, based on orthogonal test method, 16 kinds of refueling tube schemes are designed and performance tests are carried out to obtain the highest refueling rate under different combination schemes. The prediction model of gun jump ahead of refueling was established by nonlinear multiple regression method and verified by experiment. The sensitivity analysis had been conducted and the key influencing factors affecting the refuelling performance had been obtained. The analysis results showed that the vertical section height of filler pipe had the greatest impact on the risk of premature fuel nozzle shut-off. The preferred turning radius, horizontal section length and vertical section height of the filler pipe are 100 mm, 362 mm and 644 mm respectively.

Key words: Onboard refueling vapor recovery system; Refweling premature shut-off; Prediction model; Filler pipe; Orthogonal experiment method