Controlled differential actuator
US8308598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2008 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2048/346
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A controlled differential actuator particularly adapted for differential applications for motor vehicle powertrains. The differential operator incorporates an electromagnetically applied first or primary clutch coupled to a second multi-disc clutch pack through a ball ramp operator. Energization of the solenoid coil selectively applies the main clutch pack which is coupled to a differential carrier and one of the axle half shafts connected with the differential assembly. Modulation of current applied to the solenoid coil allows a selective frictional coupling between the differential axle half shafts which provides desirable traction features for the associated motor vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.