Online monitoring and fault diagnosis system for automobile engine

• Main Authors: SUN LANJUAN, CHENG YINGBING, WANG CHANGBU, LI JIAN
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2018
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses an online monitoring and fault diagnosis system for an automobile engine. The system is composed of a state monitoring system and a fault diagnosis system. The state monitoringsystem consists of a signal measuring module, a signal processing module, a data collecting module and an industrial control computer; and the fault diagnosis system includes a real-time monitoring module, an alarm module, a fault diagnosis module, a fault prediction module, a self-learning module and a printing module. The online monitoring and fault diagnosis system for an automobile engine isdesigned and erected. With fuzzy control and an expert system, the fault of an engine is analyzed systematically; a fault cause can be found out quickly and accurately; a problem processing efficiencyis improved; and the maintenance time is saved. On the basis of the modular structure design, the flexibility of the system is improved and interdependence between the layers is reduced. 本发明公开了种汽车发动机在线监测与故障诊断系统，该系统由状态监测系统和故障诊断