Device and method for positioning by means of triangulation

US10166874B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Jens Berger · Berlin, DE
• Josef Krammer · Holzkirchen, DE

Key dates

• Filing date: Feb 6, 2015
• Grant date: Jan 1, 2019
• Expiry date: Nov 2, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S30/14
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A system includes a vehicle and an induction charging unit, where the induction charging unit includes a primary coil and the vehicle includes a secondary coil. During a charging operation in a charging position, electric power is inductively transmissible from the primary coil to the secondary coil, in the charging position, the secondary coil being situated in a preferred spatial position area with respect to the primary coil, such that, for setting the charging position, by means of electromagnetic distance and angle measuring, by triangulation, the system detects a location position which describes a time-dependent spatial position of the secondary coil with respect to the primary coil. Moreover, by means of the location position and the charging position, the system detects at least a partial travel trajectory, along which the location position of the charging position can be approximated.