Patent · US Expired

Operating procedure related to a resistance heating element and device for applying same

US6307187A · kind A · utility

3Cited by

1References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Cornelius Peter · Ansbach, DE
Kurt Ingrisch · Reutlingen, DE
Thomas D. Weigold · Baden-Baden, DE
Guenther Riehl · Bühl, DE

Key dates

Filing date	Aug 20, 1999
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Aug 20, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG05D23/2401
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method of operating a resistance heating element and a device for carrying out the method are described. During a first step, the resistance of a resistor of the resistance heating element is determined at a known base temperature. In a second step, the resistance setpoint value is determined as a function of resistance of the resistor at the known base temperature and known temperature coefficients. The resistance heating element is activated by approximately setting the resistance setpoint value in order to heat the resistance heating element to the given setpoint temperature.

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