Wireless battery charging system having emergency shutdown for a traction battery of an electric vehicle

US9827863B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Stephan Bartz · Thumhausen, DE
• Thoams Roehrl · Barbing, DE

Key dates

• Filing date: Sep 2, 2015
• Grant date: Nov 28, 2017
• Expiry date: Feb 11, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/16
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A vehicle-side, electronic charging device of a wireless battery charging system receives, converts and feeds energy into a rechargeable traction battery of an electric vehicle traction motor. The traction battery is charged by an external charging system via a wireless link and the vehicle-side charging device. The vehicle-side charging device includes a first LC resonant circuit between first and second output ports, and a current rectifier having first and second AC voltage inputs and first and second DC voltage outputs. Either (i) the first and second DC voltage outputs of the current rectifier, or (ii) the first and second AC voltage inputs of the current rectifier, or (iii) the first and the second output ports of the first LC resonant circuit, or (iv) a first and a second connection of the reception coil are switchably connected to one another via an actuable kill switch.