Method of shifting a tandem drive axle having an inter-axle differential
US8523738B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2012 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Mar 14, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of shifting a power distribution unit for a vehicle from a first operating state to a second operating state is provided. The method includes the step of adjusting a rotational speed of a portion of a second axle assembly using a clutching device to impart energy to a lubricant within the second axle assembly. A controller in communication with a power source of the vehicle adjusts an operating condition of the power source to facilitate moving the clutching device. The power distribution unit includes an inter-axle differential capable being placed in a locked condition by the clutching device and of accommodating a rotational difference between a first output gear and a second output gear with the inter-axle differential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.