Patent · US Active

System for contactless energy transfer, use of a system for contactless energy transfer and vehicle with a system for contactless energy transfer between a first vehicle component and a second vehicle component

US9862338B2 · kind B2 · utility

4Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 2013
Grant dateJan 9, 2018
Priority date
Expiry dateMay 8, 2035

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02J2310/44
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A system for contactless energy transmission includes a transformer formed by a primary winding and a secondary winding, which transformer is designed so as to be resonant as a result of capacitors. By measuring and comparing electrical state variables on the primary side and on the secondary side the efficiency of the transmission of electrical power from the primary side to the secondary side is determined, and by varying the resonance frequency of the transformer or of the frequency of a primary voltage applied to the primary winding the resonance frequency and the primary voltage frequency are attuned to each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.