Starter and accessory drive system and method for hybrid drive vehicles
US8166945B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2008 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Aug 8, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H7/1281
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A starter and accessory drive system and method for hybrid drive vehicles is provided. The invention isolates the accessory drive system from the transfer of torque between a starter motor and the crankshaft of the engine. In one embodiment, a dedicated flexible drive member transfers torque from the starter motor to the crankshaft to re-start the engine. In another embodiment, a torque transfer control is employed to selectively apply torque from the starter motor to the accessory drive, to drive the accessories when the engine is stopped, and/or to the engine crankshaft to re-start the engine. In another embodiment of the invention, the accessory drive is isolated from the engine crankshaft and is instead driven by a drive motor on the accessory drive while the engine crankshaft is connected to a starter motor and/or generator which can be energized to re-start the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.