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Title:
GEAR SHIFT CONTROL METHOD AND GEAR SHIFT CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/234974
Kind Code:
A1
Abstract:
Provided is a gear shift control method for controlling, in a vehicle equipped with an automatic transmission, an input-shaft rotating speed of the automatic transmission to a prescribed target input-shaft rotating speed during shifting, the method comprising: calculating a basic target synchronous rotating speed, which is a basic target value for the input-shaft rotating speed during shifting; in the case when the shifting taking place is down-shifting and when there is a demand for driving force with respect to the vehicle, determining whether or not there is an intention of accelerating the vehicle; and if it is determined that there is an acceleration intention, setting a first target input-shaft rotating speed that is obtained by incrementally correcting the basic target synchronous rotating speed, as the target input-shaft rotating speed, whereas if it is determined that there is no acceleration intention, maintaining the basic target synchronous rotating speed, or setting a second target input-shaft rotating speed that is obtained through decremental correction, as the target input-shaft rotating speed.

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Inventors:
SHIMOYAMA HIROKI (JP)
UENO MUNETOSHI (JP)
SUZUKI TAKEFUMI (JP)
Application Number:
PCT/JP2019/019932
Publication Date:
November 26, 2020
Filing Date:
May 20, 2019
Export Citation:
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Assignee:
NISSAN MOTOR (JP)
International Classes:
F16H59/40; F16H61/02; F16H59/48; F16H61/04; F16H63/50
Domestic Patent References:
WO2010146677A12010-12-23
WO2017057757A12017-04-06
Foreign References:
JP2011133069A2011-07-07
JP2008075718A2008-04-03
JPH1191396A1999-04-06
JP2010007491A2010-01-14
JP2007112350A2007-05-10
Other References:
See also references of EP 3974683A4
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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