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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 11584358 B1

PDFFull Text
Date of Patent:
Feb. 21, 2023

Filed:

Apr. 13, 2020

Method for synchronisation of a first transmission component

Applicant:

Ningbo Geely Automobile Research & Development Co., Ltd., Ningbo, CN;

Inventor:

Muddassar Piracha, Gothenburg, SE;

Assignee:

NINGBO GEELY AUTOMOBILE RESEARCH & DEVELOPMENT CO., LTD., Ningbo, CN;

Attorney:

Tucker Ellis LLP

Primary Examiner:

Roger L Pang

Int. Cl.
CPC ...
B60W 30/19 (2012.01); B60W 20/30 (2016.01); B60K 6/26 (2007.10); B60K 6/28 (2007.10); B60K 6/36 (2007.10); B60K 6/38 (2007.10); B60W 10/08 (2006.01); B60W 10/11 (2012.01); F16H 59/18 (2006.01); F16H 59/38 (2006.01); F16H 59/70 (2006.01); F16H 61/04 (2006.01); F16H 61/688 (2006.01); F16H 59/14 (2006.01); F16H 59/68 (2006.01);
U.S. Cl.
CPC ...
B60W 20/30 (2013.01); B60K 6/26 (2013.01); B60K 6/28 (2013.01); B60K 6/36 (2013.01); B60K 6/38 (2013.01); B60W 10/08 (2013.01); B60W 10/11 (2013.01); B60W 30/19 (2013.01); F16H 59/18 (2013.01); F16H 59/38 (2013.01); F16H 59/70 (2013.01); F16H 61/0403 (2013.01); F16H 61/688 (2013.01); B60W 2510/1005 (2013.01); B60W 2510/244 (2013.01); B60W 2540/10 (2013.01); B60W 2710/08 (2013.01); B60W 2710/10 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01); F16H 2059/147 (2013.01); F16H 2059/148 (2013.01); F16H 2059/6807 (2013.01); F16H 2061/0418 (2013.01); F16H 2061/0422 (2013.01);
Abstract

A method for performing rotational speed synchronisation of a first transmission component having a first initial rotational speed with a second transmission component having a second initial rotational speed, so that they rotate with the same final rotational speed during a gear switch from an initial driving gear to a final driving gear in a stepped gear transmission for a hybrid electric or electric drive train having an electric traction motor. The method including calculating a total frictional work resulting from performing the total rotational speed synchronisation by means of a mechanical synchroniser of the stepped gear transmission only, and if the calculated total frictional work exceeds a maximal frictional work of the mechanical synchroniser, performing the rotational speed synchronisation by means of both the electric traction motor and the mechanical synchroniser.

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