Work machine with a differential protection system and method
US12179834B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2024 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | May 14, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/018
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A work machine with a differential protection system includes an electronic differential lock, a controller, and a knock sensor to convert sensed vibrations into electric signals. The controller is programmed to receive and process the electrical signals generated by the knock sensor, determine a risk of differential lock wear based on the processed signals. The program instructions include responding to the processed signals indicative of a risk of differential lock wear by inhibiting locking of the differential lock for a defined time period, and command locking the differential lock as a response to expiration of the defined period. The controller may further be programmed to command locking the differential lock as a response to a request to lock the differential lock and engagement conditions being met. The presence of a risk of differential wear is derived from a frequency and an amplitude of the processed signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.