Patent · US Expired

Motor vehicle electric system

US6919648B2 · kind B2 · utility

25Cited by

5References

28Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stephan Bolz · Pfatter, DE
Rainer Knorr · Regensburg, DE

Key dates

Filing date	Aug 5, 2003
Grant date	Jul 19, 2005
Priority date	—
Expiry date	Aug 5, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A starter-generator (ISG) is mechanically connected to an internal combustion engine (BKM), comprises a bi-directional AC/DC converter (1), and can be connected to an accumulator (B1) by means of a first switch (S1), and connected to a double layer capacitor (DLC) by means of a second switch (S2). The accumulator (B1) is either connected to the double layer capacitor (DLC) by means of a control circuit (PWM), or the accumulator (B1) and the double layer capacitor (DLC) are connected to a bidirectional DC/DC converter (3) and to a second accumulator (B2) by means of a third switch (S3) and a fourth switch (S4).

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