Vehicle fault detection device and method

Abstract

The invention provides a vehicle fault detection device and method, and relates to the field of vehicle on-line detection. The vehicle fault detection device and method first obtains an open protocol of a current vehicle from a prestored configuration file; then monitors and obtains vehicle running state information according to the prestored configuration file carrying a data protocol ID; then analyzing the vehicle running state information according to the open protocol so as to obtain vehicle running data; and finally, generating a fault prompt according to fault judging rules contained in the configuration file and the obtained vehicle running data. The vehicle fault detection device is installed in a vehicle-mounted center control terminal, detects a vehicle fault through system software, does not need hardware research personnel and a hardware manufacturer to jointly participate, during volume production, saves a large amount of production cost, can extend and upgrade the vehicle fault detection device and make the device flexibly adaptive to open protocols of various manufacturers without developing and manufacturing again, thus the vehicle fault detection device is very convenient, and cost is also saved.

Description

technical field [0001] The invention relates to the field of vehicle online detection, in particular to a vehicle fault detection device and method. Background technique [0002] With the development of people's living standards, cars have entered thousands of households, providing a lot of convenience for people's lives. However, during the driving process of the car, faults often occur, so it is necessary to detect the faults in time so that maintenance personnel can directly handle them easily. [0003] In the prior art, the method for online detection of the vehicle system is mainly through the vehicle detection device. The vehicle detection device has a built-in data acquisition module and a network module, and monitors the vehicle data of the serial port within a set period of time. After the vehicle data is collected by the device, the network module uploads it to the server. The server analyzes the collected data and puts it into the database for records; the mobil...

AI Technical Summary

Problems solved by technology

The existing device online detection scheme adopted in the market requires the joint participation of hardware R&D personnel and hardware manufacturers, and the production cost is very high;

[0004] Secondly, due to the inconsistency of the engine open protocol of the automobile manufacturer, it will be difficult for the hardware device to provide a flexible adaptation solution. Although the vehicle detection device may be able to adapt to the protocol of car A, it must be adapted to the The vehicle agreement requires redevelopment and production of the vehicle detection device, which makes it extremely inconvenient to expand and upgrade the detection scheme;

[0005] Thirdly, the online detection scheme using the vehicle detection device cannot better meet the usage scenarios of drivers and users

Since the detection results of the vehicle are displayed on the mobile phone, the driver cannot perceive the real-time data more effectively for the basic information and operation failure of the vehicle during the driving process, and they often rely on the vehicle indicator lights and instruments to know

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