Electronic-control vehicle remote diagnosis system and diagnosis method thereof

Abstract

The invention relates to an electronic-control vehicle remote diagnosis system, comprising a vehicle-mounted diagnosis terminal which is respectively arranged on each vehicle and communicates with a VMS whole-vehicle controller through CAN bus; a CCP protocol module is respectively arranged in the vehicle-mounted diagnosis terminal and the whole-vehicle controller; and the vehicle-mounted diagnosis terminal reads failure information collected by the whole-vehicle controller through the CCP protocol module, and feeds the failure information back to a background monitoring service device through wireless communication network. The invention also provides a diagnosis method of the electronic-control vehicle remote diagnosis system. The invention adopts the CCP standard protocol, utilizes the vehicle-mounted diagnosis terminal to read the failure information monitored by the VMS whole-vehicle controller in real time, and sends the failure information to the background monitoring service device, thus effectively solving the problems of monitoring and failure diagnosis and the like in development and after-market operation, being beneficial to improving vehicle quality, and having convenient application and high reliability.

Description

technical field [0001] The invention relates to an electronically controlled vehicle operation monitoring technology, in particular to an electronically controlled vehicle remote diagnosis system and a diagnosis method thereof. Background technique [0002] In order to meet the requirements of emission regulations and fault diagnosis, current vehicles will be equipped with or integrate an OBD diagnostic device. However, once a fault occurs, it is necessary to use a special OBD diagnostic instrument in a specific place such as a 4S shop to diagnose the fault, and it is difficult to save and feed back the original data of the fault to the OEM. For OEMs, automobiles need to be tested in proving grounds, high-cold, high-heat and high-altitude areas during the development process, and complete vehicle data calibration is performed. However, it is impossible to calibrate the vehicle in many places, and the data cannot be real-time. Send back to the technical center of the OEM. ...

AI Technical Summary

Problems solved by technology

However, once a fault occurs, it is necessary to use a special OBD diagnostic instrument in a specific place such as a 4S shop to diagnose the fault, and it is difficult to save the original data of the fault and feed it back to the OEM

For OEMs, automobiles need to be tested in proving grounds, high-cold, high-heat and high-altitude areas during the development process, and complete vehicle data calibration is performed. However, it is impossible to calibrate the vehicle in many places, and the data cannot be real-time. Send back to the technical center of the OEM

[0003] Most of the existing remote diagnosis systems upload the data collected by the vehicle terminal to the background. The number of parameters and functions measured are limited. data calibration

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