Hybrid powertrain having rotary electric machine, including engine-disconnect clutch, between internal combustion engine and transmission
US6655484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2000 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Aug 19, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/951
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine (12) having a crankshaft (20) is coupled to a transmission (14) through an assembly (10) comprising a rotary electric machine (16) and an engine disconnect clutch (17). The stator (38) and rotor (40) of the machine are separated by a radial air gap (42), and the machine is selectively operable as an electric motor to source torque to the powertrain and as an electric generator, or alternator, to sink torque from the powertrain. The organization and arrangement provides a powertrain and method of making a powertrain for establishing and maintaining precision in the radial air gap to secure optimal efficiency of machine operation on a production basis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.