Patent · US Active

Voltage control in a vehicle electrical system

US9429130B2 · kind B2 · utility

1Cited by

6References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rasmus Rettig · Gerlingen, DE
Werner Schiemann · Fellbach, DE

Key dates

Filing date	Sep 9, 2011
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Jun 28, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02N2250/02
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for maintaining a predetermined voltage in a battery-supported vehicle electrical system during the operation of an electrical starter includes steps of operating the electrical starter on the vehicle electrical system during a first time phase in series with a limiting resistor, in order to limit the current flowing through the starter, and operating the electrical starter on the vehicle electrical system during a second time phase with a reduced limiting resistance, in order to increase a power converted by the starter. A transition from the first time phase to the second time phase is controlled on the basis of electrical parameters sampled during the first time phase at the limiting resistor.

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