A method and system for collecting and processing vehicle EFI signals

Abstract

The invention discloses a method and system for collecting and processing an electronic injection signal of a vehicle, and the method comprises the following specific steps that 1) a remote collection device transmits collection parameter configuration information; 2) a vehicle-mounted terminal receives the collection parameter configuration information, converts the collection parameter configuration information into CPP protocol data, configures an electronic injection signal collection parameter of a vehicle ECU through a CAN bus, then obtains an electronic injection signal, transmitted by the vehicle ECU, in a CPP protocol format, and then transmits the electronic injection signal to the remote collection device after conversion and processing; 3) the remote collection device receives the electronic injection signal, deblocks the electronic injection signal according to an object relation mapping table, carries out the preprocessing of the deblocked signal data, and then stores the data. According to the invention, CAN-bus drive and CCP communication protocol stack are separated from conventional electronic injection data collection software, thereby independently forming the vehicle-mounted terminal with a function of wireless communication. Moreover, an on-site / remote collection device is combined, and a function of on-site collection is considered, thereby achieving the function of remote data collection, and greatly improving the development and testing efficiency of the whole vehicle.

Description

technical field

[0001] The invention relates to the field of vehicle detection, in particular to a method and system for collecting and processing vehicle EFI signals. Background technique

[0002] At present, most of the EFI system signal acquisition software used by domestic automobile manufacturers, whether it is software purchased from abroad at a high price, or an acquisition tool independently developed for specific ECUs and specific application scenarios, can only be directly connected to the vehicle diagnostic port for data acquisition. There are great limitations, that is, EFI system engineers must bring collection tools to the site for real-time collection.

[0003] With the rapid development of the automobile industry, people have more and more stringent requirements on the overall performance and various indicators of the automobile. Therefore, car manufacturers can't just be limited to testing in laboratories or on cars that are normally running, but have to go...

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