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汽车安全与节能学报

JASE ›› 2016, Vol. 07 ›› Issue (03): 322-329.DOI: 10.3969/j.issn.1674-8484.2016.03.011

• 汽车节能与环保 • 上一篇    下一篇

电控液压可变气门控制系统的能量回收系统( 英文)

张健1，黄岩军2，黄超1，Amir KHAJEPOUR* 1, 2   

  1. 1. 湖南大学 汽车车身先进设计制造国家重点实验室，长沙 410082，中国；
    2. 滑铁卢大学 机电工程实验室，安大略省 N2L3G1，加拿大
  • 收稿日期:2016-02-29 出版日期:2016-09-25 发布日期:2016-09-30
  • 通讯作者: 通讯作者 / Corresponding author ： Amir KHAJEPOUR，Prof.。E-mail: a.khajepour@uwaterloo.ca
  • 作者简介:张健(1991—)，男( 汉)，江西，硕士研究生。E-mail: zhangjian_hnu@126.com
  • 基金资助:

    湖南自然科学基金资助项目(14JJ3060) ；国家自然科学基金资助项目(11202077)

Energy Recovery System for an Electro-Hydraulic Variable Valve Actuation System

ZHANG Jian1, HUANG Yanjun2, HUANG Chao1, Amir KHAJEPOUR* 1, 2   

  1. 1. State Key Laboratory Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China;
    2. Department of Mechanical and Mechatronics Engineering, University of Waterloo, Ontario N2L3G1, Canada
  • Received:2016-02-29 Online:2016-09-25 Published:2016-09-30
  • Contact: 通讯作者 / Corresponding author ： Amir KHAJEPOUR，Prof.。E-mail: a.khajepour@uwaterloo.ca

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摘要：

电控液压可变气门控制(VVA) 系统能够确保气门正时与升程可变，但是系统却消耗大量能量。为了提升它的节能性，本论文提出了一种带有能量回收系统(ERS) 的VVA 系统。该系统利用一个蓄能器来储存液压缸卸油浪费的能量，蓄能器积累的油压能确保更低主泵能耗。通过在GT-power模型中优化气门正时与升程，来确保带有VVA 系统的发动机的燃油消耗率 (BSFC) 达到最低。结果表明：增加能量回收系统，使气门正时和升程柔性可调，并减少VVA 的能量消耗，发动机动力性提升7%~11%，燃油经济性提升6%~9%。

关键词: 发动机, 能量回收系统(ERS) , 可变气门控制(VVA) , 燃油消耗率 (BSFC) , GT-power 模型

Abstract:

The electro-hydraulic variable valve actuation (VVA) system ensures variable valve timing and lift, and expends a lot of energy. To improve the energy efficiency of VVA, this paper introduces an energy recovery system (ERS). An accumulator was used to store the surplus, otherwise wasted energy of the discharged oil from the cylinder, so the accumulated pressure of this accumulator was guaranteed the lower energy consumption of the main pump. The valve timing and lift was optimized in GT-power model to achieve the minimum Basic Specific Fuel Consumption (BSFC) of the engine with this VVA system. The results show that the addition of ERS adjusts the timing and lift of the valve flexibly and decreases the VVA energy consumption with a 7% - 11% of engine power increasing and a 6% - 9% of economy increasing.

Key words: engine, energy recovery system (ERS), variable valve actuation (VVA), brake specific fuel consumption (BSFC), GT-power model