Automated inter-axle differential lock actuation sensing method
US7152720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Jul 2, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/36
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an automatic inter-axle differential lock actuation sensing method for a vehicle having a tandem drive axle. The inter-axle differential lock actuation sensing method comprises providing a clutch locking mechanism of an inter-axle differential for a vehicle, the clutch locking mechanism having a first set of teeth in a fixed position and a second set of teeth on a sliding clutch, locating a speed sensor such that when the clutch mechanism is disengaged the sensor measures a speed of the sliding clutch, and when the clutch mechanism is fully engaged the sensor measures zero speed even though the sliding clutch continues to rotate, providing a speed of the vehicle from a vehicle data link, and using the speed sensor-speed and the vehicle speed to determine status of clutch mechanism engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.