一种发动机轻载节油方法的研究-《郑州大学学报(工学版)》

文章信息/Info

作者:: 沈建军; 冯忠绪; 杨建辉.; 长安大学道路施工技术与装备教育部重点实验室,陕西西安,710064, 中联重科路面机械分公司,湖南长沙,410025

Author(s):: SHEN Jianjun; FENG Zhongxu; YANG Jianhui; 1. Key Laboratory for Highway Construction Technology and Equipment of Ministry of Education, Chang’an University, Xi’an710064,China;2.Zoomlion Road Machinery Branch Company,Changsha 410025, China

摘要:: 汽车在减速滑行状态下,有很大一部分能量消耗在发动机制动阻力上,为了减小这一部分能量消耗,提出一种发动机轻载节油的新方法,设计了轻载节油的工作机构与控制系统,使汽车在挂档减速滑行状态时,能控制发动机停止喷油,同时强制打开排气门释压,从而充分利用汽车惯性能量,使汽车滑行距离更远,达到节能减排的目的.汽车挂档滑行距离对比试验表明,在相同时间内,发动机在轻载节油工况下的滑行距离与正常挂档滑行距离基本相同,但由于此时发动机停止了喷油,节油7.2％,证实发动机轻载节油方法可行.

Abstract:: Abstract: When automobile is slowing and sliding, a large part of energy is consumed in engine braking re.sistance. In order to reduce this part of energy consumption,the way of saving fuel on engine light load wasput forward , which included the design of the working mechanism and control system, When automobile is slo.wing and sliding in gear, the above way can stop the injection of engine and force exhaust valve to open for re-leasing pressure, which finally makes full use of automobile inertia energy to make car’s sliding distance grea.ter and further save energy as well as reduce the emission, Through the experiments on the distanee of automo.bile sliding, it is well known that, at the same time, the distance of car sliding in condition of engine lightload is almost the same as the distance of car sliding normally in gear. Meanwhile, the engine’s stopping in-jection leads to a 7.296 fuel consumption reduetion. So the way of saving fuel on engine light load is proved tobe feasible.