冷试技术在发动机装配线的应用研究

Engine Cold Test Technology Studies in Assembly Line

发动机冷试技术作为一种新型的发动机装配质量在线检测技术,具有测试时间短、精度高、成本低、污染少等优点,在国内被越来越多的汽车厂商引入到发动机装配线上。以某发动机工厂装配线为例,阐述冷试基本概念、冷试主要测试项及测试过程中常见故障现象,并详细对冷试中机油压力检测、扭矩检测、正时检测、点火检测、振动检测、OCV检测及排气压力检测关键技术进行了研究。

The engine cold test as a new type of on -line detection technology for engine assembly quality, is characterized with advantages such as short test time, high accuracy,low cost, less pollution,etc,and therefore is introduced to the engine assembly line by more and more automobile manufacturers. This paper taking an example of one engine plant. It elaborates the concept of the cold test and the theory of defect mapping, meanwhile key technologies in cold test, like oil pressure test, torque test, timing test, ignition test, OCV test, exhaust pressure test will researched in detail.