Battery equalization using a plug-in charger in a hybrid electric vehicle
US7567061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Oct 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/907
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a hybrid electric motor vehicle, a power supply system for storing and supplying electrical power includes a motor-generator located onboard the vehicle, driveably connected to the vehicle wheels and producing AC electric power, an energy storage device for alternately storing and discharging electric power, an inverter coupled to the motor-generator and the energy storage device for converting alternating current produced by the motor-generator to direct current transmitted to the energy storage device, and for converting direct current stored in the energy storage device to alternating current transmitted to the motor-generator, a source of AC electric power located external to the vehicle, and a charger coupled to said electric power source and the energy storage device for supplying DC electric power to the energy storage device from said AC electric power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.