公开(公告)号：US10808835B2

公开(公告)日：2020-10-20

申请号：US15909140

申请日：2018-03-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN AW CO., LTD.

Inventor： Norihiro Tsukamoto ,  Tomohiro Asami ,  Hiromasa Takai ,  Masataka Hirano ,  Daiki Fukuda ,  Takuma Sugino

IPC: F16H61/02 ,  F16H61/04 ,  F16H61/10 ,  F16H61/16 ,  F16H61/06 ,  F16H61/686 ,  F16H63/50

Abstract: A shift control device of a vehicle including an internal combustion engine and a multi-speed transmission in series, the shift control device comprises: a control portion providing a downshift control in which an input shaft rotation speed of the multi-speed transmission is increased through a torque-up of the internal combustion engine toward a post-shift input shaft rotation speed in a neutral state where a release-side engagement device to be released during a downshift of the multi-speed transmission is released, so as to engage an engagement-side engagement device to be engaged after the shift. In the case of a shift pattern having a large internal inertia of the multi-speed transmission, the control portion controls a torque capacity of the engagement-side engagement device to a value greater than zero before starting a torque-up control of the internal combustion engine.

公开(公告)号：US10161510B2

公开(公告)日：2018-12-25

申请号：US15656003

申请日：2017-07-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN AW CO., LTD.

Inventor： Keisuke Ota ,  Norihiro Tsukamoto ,  Tomohiro Chimbe ,  Ayumu Sagawa ,  Hiromasa Takai ,  Masataka Hirano

IPC: F16H61/04 ,  F16H61/00 ,  F16H61/30 ,  F16H61/06 ,  F16H61/28 ,  F16H3/66 ,  F16H61/686

Abstract: When there is a request for a skip downshift that transitionally establishes an intermediate speed position, a surge hydraulic pressure at the start of a torque phase during shift control toward the intermediate speed position is set so as to be lower than a surge hydraulic pressure at the start of a torque phase during shift control toward a required speed position.