Patent · US Expired

Electrical control system for an electrically heated window in motor vehicle

US5175412A · kind A · utility

1Cited by

2References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Kohl · Bietigheim, DE
Guenter Schramm · Lambach, DE
Rolf Wenniger · Markgröningen, DE

Key dates

Filing date	Oct 11, 1991
Grant date	Dec 29, 1992
Priority date	—
Expiry date	Oct 11, 2011

Classification

Technology area (CPC H)Electricity
CPC primaryH02J7/1438
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical control system for an electrically heated window in a motor vehicle has a voltage source including a generator, a voltage regulator for regulating a generator output voltage, a transformer switched between the generator and a heating window, the generator output voltage being increased before supplying to the heatable window, and a unit for measuring a temperature of the transformer and interrupting a communication between the transformer and the voltage source in the event of exceeding an adjustable limiting temperature.

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