Patent · US Active

Systems for charging an energy store, and method for operating the charging systems

US9793850B2 · kind B2 · utility

2Cited by

2References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Peter Feuerstack · Ludwigsburg, DE
Erik Weissenborn · Stuttgart, DE
Martin Kessler · Rothenburg ob der Tauber, DE

Key dates

Filing date	Aug 24, 2011
Grant date	Oct 17, 2017
Priority date	—
Expiry date	Dec 16, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for charging at least one energy reservoir cell in a controllable energy reservoir for controlling/supplying electrical energy to an n-phase electrical machine. The controllable energy reservoir has n parallel energy supply branches each having at least two series connected energy reservoir modules, each encompassing at least one electrical reservoir cell having an associated controllable coupling unit. The energy supply branches are connectable to a reference bus and a respective phase of the machine. As a function of control signals, the coupling units interrupt the respective energy supply branch or bypass the cells or switch the associated cells into the respective energy supply branch. To enable charging of at least one cell, at least two phases of the machine are connectable via at least one respective freewheeling diode to a positive pole of a charging device, and the reference bus is connectable to a negative pole of the device.

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