Wireless charging station device with frequency selection and vehicle position determination

US11091052B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Fredrik Hocke · Munich, DE
• Josef Krammer · Holzkirchen, DE
• Helmut Wagatha · Oberschleißheim, DE

Key dates

• Filing date: May 1, 2019
• Grant date: Aug 17, 2021
• Expiry date: May 8, 2039

Classification

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

Abstract

A charging station facility is provided having one or more charging stations for wirelessly transmitting electric energy to a vehicle. Each charging station includes a base unit which is designed to generate an electromagnetic charging field during a charging process in order to transmit electric energy to the vehicle and a transmitting and/or receiving unit which is designed to receive a request signal from a transmission unit of a vehicle or to transmit the request signal to a receiving unit of the vehicle. The request signal lies in any range of a plurality of different frequency ranges. The receiving unit is additionally designed to ascertain a signal strength of the received request signal. The charging station facility additionally includes a control and communication unit which is designed to transmit a message to a control unit of the vehicle and to a control unit of the receiving unit of the charging station selected for the charging process, wherein the message includes information on which selected frequency range the request signal is to be transmitted.