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汽车安全与节能学报

JASE ›› 2019, Vol. 10 ›› Issue (1): 88-94.DOI: 10.3969/j.issn.1674-8484.2019.01.011

• 汽车节能与环保 • 上一篇    下一篇

48 V 车型换档提醒装置的国家标准分析与节能性

王学平，刘志超*，陆 春，曹冬冬   

  1. （中国汽车技术研究中心有限公司，天津 300300，中国）
  • 收稿日期:2018-07-16 出版日期:2019-03-31 发布日期:2019-04-01
  • 通讯作者: 刘志超，工程师。E-mail: liuzhichao@catarc.ac.cn。
  • 作者简介:第一作者 / First author ： 王学平（1975—），男（汉），天津，高级工程师。E-mail: wangxueping@catarc.ac.cn。
  • 基金资助:

    国家重点研发计划资助项目（2018YFB0106405）。

National standards analysis and energy saving on gear shift indicator for 48-V vehicles

WANG Xueping, LIU Zhichao*, LU Chun, CAO Dongdong   

  1. (China Automotive Technology and Research Center Co., Ltd., Tianjin 300300, China)  
  • Received:2018-07-16 Online:2019-03-31 Published:2019-04-01

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摘要：

       为研究换档提醒装置（GSI）对48 V 车型的节油效果，开展了相关国家标准分析及试验。分析了48 V 系统的加速性能，对比了搭载GSI 前后，车辆在实际档位选取及新欧洲行驶工况 (NEDC) 下发动机的瞬态转速扭矩的差异；并依据国家标准，基于标准换档及GSI 换档2 种换档策略，进行了4 款车型的油耗试验。综合国家标准分析及试验研究，结果表明：对于同一款48 V 车型，在相同的试验设置及NEDC 测试循环下，搭载GSI 后可使100 km 油耗降低0.38 L，相当于节油5.80 %；GSI 对48 V 车型的油耗改善大于对传统车型的影响。因此，通过调节发动机的转速和扭矩，可以改善油耗。GSI 是一项新兴节能技术，希望有关国家标准中得到体现。

关键词: 混合电动汽车 (HEV) , 换档提醒装置（GSI) , 节能 , 国家标准 , 48 V 车型

Abstract:

Some tests for 48-V vehicles with gear shift indicator (GSI) were carried out, and China national correlation standards were analyzed to investigate the energy-saving of the GSI. After analyzing the acceleration performance of the 48-V system, compared the differences of the actual gear selection, transients
speed and torque of engines between the 48-V vehicles with or without GSI, under the New European Driving Cycle (NEDC), 4 vehicles were tested under both the normal gear shift and the GSI strategies, according to the national standards, with combining the national standard analysis and tests. The results show that the fuel consumption per 100 km for 48-V vehicle with the GSI is reduced by 0.38 L (which is equivalent to the 5.80% of fuel economy) under the same test conditions and NEDC test cycle. And the fuel consumption reduction from GSI for the 48-V vehicle is greater than that of the conventional one. Therefore, adjusting the engine speed and torque can reduce the fuel consumption. As an emerging energy-saving technology, GSI should be reflected in relevant national standards.

Key words: hybrid electric vehicles (HEV) , gear shift indicators (GSI) , energy-saving , national standards , 48-V vehicles