发动机启动不连续问题分析及解决措施  

Analysis and Solution to Discontinuous Engine Start-Up

作　　者：付雪超[1] 马文亮[1] 李慧军[1] 由毅[1] 冯擎峰[1] 

机构地区：[1]吉利汽车研究院,浙江杭州311228

出　　处：《小型内燃机与摩托车》2013年第6期16-20,共5页Small Internal Combustion Engine and Motorcycle

摘　　要：某车型搭载的1.8L自然吸气式发动机在市场上出现启动不连续的问题。为解决此问题,本文详细分析了与发动机启动相关的因素,在理论分析的基础上,通过试验对比的手段进行了逐一验证。结果表明,造成发动机启动不连续的原因为发动机驱动盘尺寸错误,导致转速传感器信号错误,引起ECU点火时刻错误,最终导致发动机启动不连续。针对该故障原因,提出了优化驱动盘尺寸的方案。经试验验证,该方案能有效解决发动机启动不连续的问题。The discontinuous start-up of 1.8L naturally-aspirated engine in a specific car is found on the market.To solve the above problem,the factors related to engine start-up are particularly analyzed.Based on the theoretical analysis,the validation is performed one by one via test and comparison.The result shows that the reason for discontinuous engine start-up is wrong drive disc size,which leads to signal error of speed sensor and wrong ignition timing of ECU,finally causing discontinuous engine start-up.Therefore,the solution is presented to optimize the drive disc size.The test validation indicates that this solution can effectively solve the discontinuous engine start-up.

关 键 词：信号 驱动盘 转速传感器 点火时刻 

分 类 号：TK417.1[动力工程及工程热物理—动力机械及工程]