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:
May. 19, 2015

Filed:

Sep. 11, 2009
Applicant:

Kadota Keiji, Chiba, JP;

Inventor:

Kadota Keiji, Chiba, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/00 (2006.01); G06F 19/00 (2011.01); B60K 6/365 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10); B60W 10/02 (2006.01); B60W 20/00 (2006.01);
U.S. Cl.
CPC ...
B60K 6/365 (2013.01); B60K 6/48 (2013.01); B60K 6/547 (2013.01); B60W 10/02 (2013.01); B60W 20/00 (2013.01); B60W 2510/0241 (2013.01); B60W 2510/0275 (2013.01); B60W 2710/027 (2013.01); Y02T 10/6221 (2013.01); Y02T 10/6269 (2013.01);
Abstract

A method of controlling clutch transfer torque in a hybrid vehicle comprises estimating clutch characteristics from a relation between a control current for a clutch hydraulic valve and a clutch transfer torque corresponding to the control current for the clutch hydraulic valve. With the method, a clutch friction coefficient can be precisely estimated, thereby reducing/eliminating a shock that can occur in the event of the clutch going on or off.


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