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.

Patent No.:

US 8423251 B1

Expired

Date of Patent:

Apr. 16, 2013

Filed:

Aug. 01, 2006

Method and device for operating a drive unit

Applicants:

Dirk Hartmann, Stuttgart, DE;

Georg Mallebrein, Korntal-Muenchingen, DE;

Werner Mezger, Eberstadt, DE;

Andreas Roth, Muehlacker-Lomersheim, DE;

Henri Barbier, Schwieberdingen, DE;

Nikolas Poertner, Stuttgart, DE;

Frank Schiller, Tamm, DE;

Juergen Rappold, Ilsfeld-Auenstein, DE;

Ingo Fecht, Ludwigsburg, DE;

Inventors:

Dirk Hartmann, Stuttgart, DE;

Georg Mallebrein, Korntal-Muenchingen, DE;

Werner Mezger, Eberstadt, DE;

Andreas Roth, Muehlacker-Lomersheim, DE;

Henri Barbier, Schwieberdingen, DE;

Nikolas Poertner, Stuttgart, DE;

Frank Schiller, Tamm, DE;

Juergen Rappold, Ilsfeld-Auenstein, DE;

Ingo Fecht, Ludwigsburg, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:

Kenyon & Kenyon LLP

Primary Examiner:

Thomas Tarcza

Assistant Examiner:

Rami Khatib

Int. Cl.

CPC ...

G06F 7/00 (2006.01); G06F 17/00 (2006.01); G06F 19/00 (2006.01);

U.S. Cl.

CPC ...

Abstract

A method and a device are provided for operating a drive unit having an engine and a transmission, which make possible an improved shifting strategy. In a first operating state, the engine is operated using a first number of active cylinders. In a second operating state, the engine is operated using a second number of active cylinders. The first number is different from the second number. A gear ratio is set as a function of at least one operating variable of the drive unit. The gear ratio is also set as a function of the current or the attainable operating state of the engine with respect to the number of the active cylinders.

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Hartmann, Dirk. (2013). Method and device for operating a drive unit (U.S. Patent No. 8423251). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8423251

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