Application method for novel portable vehicle-mounted instrument terminal

The invention relates to the application method for a novel portable vehicle-mounted instrument terminal. According to the method, a data interface and an audio interface on the portable vehicle-mounted instrument terminal are matched with a data connector and an audio plug on an instrument panel. The method comprises the steps that the vehicle-mounted instrument terminal is connected with an automobile electrical control network through the data interface, enters a user right window of a vehicle-mounted application main program to start an automobile, sets up communication with the automobile network CAN, enters an interface of the vehicle-mounted application main program, calls driving information of the automobile and quits. According to the method, the defects that the operation information of the automobile can not be recorded in real time in the past, and the information can not be uploaded to a cloud side or an automobile service provider through the internet are overcome; an existing smart phone servi