Patent · US Expired

Voltage-regulator for regulating the voltage of an alternator

US5523672A · kind A · utility

10Cited by

8References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guenter Schramm · Lambach, DE
Walter Kohl · Bietigheim, DE
Friedhelm Meyer · Mühlacker, DE
Rainer Mittag · Kornwestheim, DE

Key dates

Filing date	Dec 8, 1994
Grant date	Jun 4, 1996
Priority date	—
Expiry date	Dec 8, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/92
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The description concerns a voltage regulator (12) for regulating the output voltage (UB+) of an alternator (10) which is driven by an internal combustion engine. The voltage regulator (12) has an additional circuit (24) which evaluates the exciter current duty cycle (T) and supplies a signal (S1) at its output which is high when the exciter current duty cycle is high and low when the exciter current duty cycle is low. The circuit (24) is integrated in the voltage regulator (12) and the output signal (S1) supplied by it is transmitted via an additional regulator terminal (DA) and can be fed to the control device (25) of the internal combustion engine, where it is used, for instance, to increase the idling speed of the engine and accordingly also to increase the alternator speed and thus the power delivered by the alternator (10). It is also possible to switch off unnecessary consumers with this signal.

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