System for charging a rechargeable battery of an electric vehicle

US9748795B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Merten Jung · Munich, DE
• Patrick Mueller · Villa de Reyes, MX
• Robert Griessbach · Weyarn, DE
• Thomas Schimanek · Herrsching am Ammersee, DE
• Christian Hieber · Germering, DE

Key dates

• Filing date: Mar 1, 2013
• Grant date: Aug 29, 2017
• Expiry date: Oct 25, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/14
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electric vehicle includes an electric machine, a generator generating a first AC output current, an internal combustion engine driving the generator, and a first electric plug-in charging device. When the engine is started, the generator supplies the battery with charging power. The first plug-in charging device is geometrically configured to be connectable with single phase AC power mains to supply the battery with charging power in a vehicle deactivated state. The first plug-in charging device is configured for a maximum electric power voltage load of 240 volts and a maximum current strength of 32 amperes. A second electric plug-in charging device is integrated into the vehicle. A DC charging station is connectable to the second charging device in the deactivated state so the DC charging station is usable either exclusively or simultaneously with the single phase AC power mains for charging the battery.