Vehicle gear box abnormality determination method and device and vehicle
By collecting and analyzing gearbox operating noise and speed signals, performing time-frequency analysis and order tracking, the problem of relying on manual experience for troubleshooting vehicle gearbox anomalies in existing technologies has been solved, enabling more accurate fault type judgment and efficient maintenance processes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI INFIMOTION PROPULSION TECH CO LTD
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the investigation of abnormal noise in vehicle gearboxes mainly relies on manual experience, lacks unified and objective quantitative basis, makes it difficult to accurately locate specific abnormal parts, and traditional methods are labor-intensive and time-consuming, inefficient, and may introduce assembly deviations.
By collecting gearbox operating noise and speed signals, time-frequency and frequency spectrum analyses are performed. This is repeated, combining the collected gearbox operating noise signals with speed changes, to obtain a time-frequency spectrum diagram. Furthermore, based on the speed signal, order tracking is performed to extract the amplitude and energy trajectory characteristics of abnormal orders, thus determining the fault type.
It enables more detailed fault type identification of vehicle gearbox anomalies under varying speed conditions, improving location accuracy and troubleshooting efficiency while reducing manual intervention and time costs.
Smart Images
Figure CN122409181A_ABST