Electrical circuit for providing a reduced average voltage
US6744146B2 · kind B2 · utility
7Cited by
9References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Nov 30, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2011/0896
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods of the invention may utilize integrated starter-alternator (ISA) electronics to drive a conventional DC starter coupled to a start-stop ISA system providing a voltage higher than that at which the starter is rated. The DC starter may cold crank an internal combustion engine, while a poly-phase starter alternator warn cranks the engine and converts mechanical energy to an AC current. The AC current may be converted to a DC current to provide charging functions. A reduced average voltage is provided to the DC starter and an adjustable-frequency alternating current may be provided to the starter alternator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.