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:
Jun. 06, 2017

Filed:

Sep. 25, 2014
Applicant:

Zf Friedrichshafen Ag, Friedrichshafen, DE;

Inventors:

Christoph Ommer, Friedrichshafen, DE;

Christian Soeldner, Friedrichshafen, DE;

Ricardo Gonzalez-Ramos, Salem, DE;

Assignee:

ZF Friedrichshafen AG, Friedrichshafen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60W 10/02 (2006.01); B60W 10/11 (2012.01); F16D 48/06 (2006.01);
U.S. Cl.
CPC ...
F16D 48/06 (2013.01); F16D 2500/30406 (2013.01); F16D 2500/30803 (2013.01); F16D 2500/30806 (2013.01); F16D 2500/3166 (2013.01); F16D 2500/7044 (2013.01); F16D 2500/70282 (2013.01);
Abstract

The disclosure relates to a procedure for controlling torque transmission rate of a clutch. The clutch is in connection with a transmission and an electric machine, configured to receive torque from the electric machine by a couple half of the clutch, and configured to produce a torque guiding connection between a combustion engine and the transmission. According to the procedure, when the clutch is in a slipping condition, a shifting demand to the transmission to shift from a neutral position to a gear is detected. After detecting such a shifting demand, either a counter is started so that when the counter reaches a first count, the torque transmission rate of the clutch is being increased, or an event detection is actuated to detect an event that directly precedes the shifting process, so that when this event is detected, the torque transmission rate of the clutch is increased.


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