An automobile abnormal sound monitoring and diagnosing device

Abstract

An automobile abnormal sound monitoring and diagnosing device is provided, and belongs to the technical field of automobiles. The device overcomes the problem that only sounds of different zones of automobiles are memorized, and automobiles are not provided with a preliminary diagnosis function in the prior art. The device includes an automobile storage battery supplying components with electric power, a sound collecting module for collecting automobile sound, and a controller used for respectively comparing and matching the automobile sound collected by the sound collecting module with typical abnormal sound cases memorized in advance inside. The controller is connected to an automobile CAN bus network for transmitting automobile running information signals. The sound collecting module is connected to the controller also used for memorizing abnormal sound after the collected automobile sound is successfully matched with abnormal sound parameters memorized inside and corresponding automobile conditions when the abnormal sound occurs. The device monitors and records the abnormal sound of a local part of an automobile under present automobile running conditions and performs preliminary diagnosis.

Description

technical field [0001] The invention belongs to the technical field of automobile electronics, and relates to an automobile abnormal noise monitoring and diagnosis device. Background technique [0002] With the development of social economy, automobiles have gradually become the main means of transportation for people to travel, which has brought a lot of convenience to our lives, but it is inevitable that some faults will occur during driving. Automobile abnormal noise is a manifestation of local minor faults of the car, and sometimes even the early performance of important faults, which cannot but attract the attention of car owners. It is generally difficult to judge the cause of abnormal noises in cars. Some abnormal noises only occur in certain special circumstances, while others occur occasionally with no rules to follow, which makes it difficult to eliminate abnormal noises. [0003] For this reason, Chinese patent document discloses a kind of car abnormal sound reco...

AI Technical Summary

Problems solved by technology

The device only stores the sound in different areas of the car, so that the maintenance master listens to the computer and plays the sound information in the storage module, and compares it with the sound of a specific fault, so as to determine the source of the abnormal sound on the vehicle and diagnose the problem of the vehicle. Fault, the device does not have the function of preliminary diagnosis, and the source of the abnormal sound needs to be judged manually, resulting in inaccurate judgment and other problems

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