摘要
为达到整车油耗目标,各种节油技术被应用,但是如果没有合理的协同控制策略,会导致各项技术之间以及各项技术与整车控制策略之间不能相互融合,达不到预期的节油目标。为此本文首先讨论开关式水泵、电子节温器、起停技术、智能发电机与发动机控制之间相互耦合产生的影响,然后提出协同控制策略。在一款SUV匹配2. 0T汽油发动机车型上应用,通过反复试验解耦出控制策略最优参数,使4种节油技术集成应用后发挥最大节油效果,试验结果表明该车采用整车协同节油策略NEDC测试循节油效果达到2%。随后对整车排放性能、驾驶性能和起步加速性能进行试验验证,均满足设计指标要求。该方法不需要增加任何硬件与软件,是一种移植性较强的节油技术,可推广至其他车辆开发中采用。
In order to achieve the target of vehicle fuel consumption, various fuel saving technologies are applied, however if there is no reasonable cooperative control strategy, it will lead to the inability between any two various technologies and between the technology and the whole vehicle control strategy to be fused, and we can’t reach the expected fuel saving target. Therefore,this paper first studiesthe influence of the mutual coupling among the switch type pump, the electronic thermostat, the start-stop technology, the intelligent generator and the engine control, then proposes a cooperative control strategy. The strategy was applied to a SUV matching 2.0T gasoline engine. The optimal parameters of the control strategy were decoupled through repeated tests. It gave full play to maximize fuel saving effect after integrated application the four fuel saving technologies were integrated. The test results show that vehicle synergy fuel saving strategy can achieve 2% fuel saving in the NEDC test cycle. The vehicle emission performance, driving performance and start acceleration performance involved in mass production are verified by a test. The fuel saving strategy has strong portability, and it does not need to add any hardware and software, and excavate fuel saving potential from every detail of the NEDC condition. It is worth popularizing to other vehicle development.
作者
李卫兵
吴琼
吴哲
LI Weibing;WU Qiong;WU Zhe(Anhui Jianghuai Automobile GroupCO.,Ltd Technical Center,AutomobileIntelligent and network technology Key Laboratory of Anhui Province,Hefei 230601 China)
出处
《西华大学学报（自然科学版）》
CAS
2018年第5期82-86,96,共6页
Journal of Xihua University:Natural Science Edition
基金
安徽省科技重大专项计划项目(15czz02037)
关键词
节油技术
协同控制
启动转速控制
暖机怠速
排放
驾驶性
oil saving technology
synergetic control
start speed control
warmingidle
emission
driveability
