Driveline actuator powered by synchronization event
US9428051B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jul 21, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/3023
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A disconnectable all-wheel drive vehicle driveline having a primary driveline, a power take-off unit (PTU), a secondary driveline, a hydraulic pump and a driveline actuator. The PTU has a PTU input member, which is driven by the primary driveline, a PTU output member and a first coupling that selectively couples the PTU input and output members. The secondary driveline includes a second coupling that selectively inhibits power transmission through the secondary driveline. The hydraulic pump is configured to operate the first coupling but is powered by a synchronization event in which the second coupling is engaged so as to back drive the PTU output member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.