Power delivery circuit with boost for energetic starting in a pulsed charge starter/alternator system
US6420793B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/007
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of energizing a combined starter/alternator to start an engine in a vehicle including a primary energy storage device and a secondary energy storage device. The method includes the steps of monitoring a charge value on the secondary energy storage device, and activating a converter switching circuit to charge the secondary energy storage device with the primary energy storage device until the charge value is greater than a maximum charge value. Thereafter, an inverter switching circuit is activated to energize the starter/alternator with the power available in the primary and secondary energy storage devices. The starter/alternator is activated as a starter motor until the engine starts or the charge on the secondary energy storage device falls below a mininum charge value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.