The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 23, 1996

Filed:

Oct. 20, 1994
Applicant:
Inventors:

Horst Brinkmeyer, Waiblingen, DE;

Wolf-Dieter Blauensteiner, Ostfildern, DE;

Thomas Binder, Korb, DE;

Gunter Loose, Remseck, DE;

Alfred Wirth, Oberdischingen, DE;

Gerhard Muenkel, Fellbach, DE;

Reinhard Steinkaemper, Winnenden, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318139 ; 322 28 ; 322 29 ; 318147 ; 307 101 ;
Abstract

A motor vehicle electrical system has an electrical machine with an on-board power supply generator function. The electrical machine can be operated, in a first mode, as an on-board power supply generator, having a regulator for setting the excitation current for the electrical machine, and having an electrical load having a comparatively high power consumption, for example a heating device for an exhaust gas catalytic converter. A changeover switch, by means of which an output of the electrical machine can optionally be connected to an on-board power supply cable or to the load, as well as a control unit for controlling the regulator and changeover switch optionally in the first mode or a second mode, is provided so that the electrical machine is connected to the on-board power supply and the regulator regulates the operating voltage at an on-board power supply voltage. Alternatively, the electrical machine is connected to the load and the regulator regulates the operating voltage at a higher nominal value. In addition to these two functions, a third function as a starter motor is provided for the electrical machine.


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