Intelligent networked automobile fault detection method and system

The invention relates to the technical field of automobile fault detection, in particular to an intelligent networked automobile fault detection method and system. The method comprises the following steps: acquiring an instantaneous fuel consumption sequence, a fuel consumption sequence, an instantaneous speed sequence and a first sequence in a vehicle driving process; driving habit similarity indexes among the vehicles are obtained, and the vehicles are grouped according to the driving habit similarity indexes among the vehicles; according to the first similarity mean value of the vehicles in the same group and other vehicles and the second similarity mean value of the vehicles in the same group, obtaining a fault early warning judgment index of the vehicles; and using the fault early warning judgment indexes of the vehicles in the same group to judge the vehicles with faults in the same group. According to the method, the vehicles are grouped according to the driving habits, then fault detection is carried