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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 9701303 B1

PDFFull Text
Date of Patent:
Jul. 11, 2017

Filed:

Jun. 18, 2015

Method and system for shifting a gear of a hybrid electric vehicle

Applicant:

Beiqi Foton Motor Co., Ltd., Beijing, CN;

Inventor:

Weibin Yang, Beijing, CN;

Assignee:

BEIQI FOTON MOTOR CO., LTD., Beijing, CN;

Attorneys:

David D. Brush

Westman, Champlin & Koehler, P.A.

Primary Examiner:

Jelani Smith

Assistant Examiner:

Luis A Martinez Borrero

Int. Cl.
CPC ...
B60L 9/00 (2006.01); B60L 11/00 (2006.01); G05D 1/00 (2006.01); G05D 3/00 (2006.01); G06F 7/00 (2006.01); G06F 17/00 (2006.01); B60W 20/30 (2016.01); B60W 20/40 (2016.01); B60W 10/10 (2012.01); B60W 10/08 (2006.01); F16H 61/02 (2006.01); F16H 59/70 (2006.01); F16H 59/44 (2006.01); F16H 59/36 (2006.01); F16H 59/14 (2006.01); F16H 59/68 (2006.01); F16H 61/00 (2006.01);
U.S. Cl.
CPC ...
B60W 20/30 (2013.01); B60W 10/08 (2013.01); B60W 10/10 (2013.01); B60W 20/40 (2013.01); F16H 61/0213 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/0657 (2013.01); B60W 2510/083 (2013.01); B60W 2510/1005 (2013.01); B60W 2510/244 (2013.01); B60W 2520/10 (2013.01); B60W 2710/1005 (2013.01); F16H 59/44 (2013.01); F16H 59/70 (2013.01); F16H 2059/148 (2013.01); F16H 2059/366 (2013.01); F16H 2059/6815 (2013.01); F16H 2061/0015 (2013.01); Y02T 10/76 (2013.01); Y10S 903/93 (2013.01); Y10S 903/945 (2013.01);
Abstract

A method and a system for shifting a gear of a hybrid electric vehicle are provided. The method includes following steps. A state of a battery is determined according to a remaining capacity of the battery, a required torque and a state of the hybrid electric vehicle, in which the state of the battery comprises a discharging state or a charging state. A plurality of optional target gears, a torque and a rotating speed of an engine corresponding to each optional target gear are determined according to the state of the battery and a speed of the hybrid electric vehicle. An optional target gear with a minimum fuel consumption of the engine is selected as a target gear from the plurality of optional target gears. It is determined whether to perform a gear shift by comparing with a current gear.

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