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Patent Searching and Data


Title:
AUTOMATIC TRANSMISSION CONTROLLING APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO2008029951
Kind Code:
A9
Abstract:
An ECU executes a program including a step (S102) of starting monitoring of the rotational speed of the turbine and the rotational speed of output shaft when direct gear change is started (YES at step S100), a step (S106) of making a control of completely releasing a release element (1), a step (S110) of lowering the control pressure of the release element (2) to a predetermined control pressure, a step (S114) of starting engagement control of an engagement element (1) when a set time Ts (1) elapses (YES at step S112), and a step (S120) of making a control of completely releasing the release element (2) when a set time Ts (2) elapses (YES at step S118), and a step (S124) of starting engagement control of the engagement element (2) if the rotational speed NT of the turbine is a value equal to or more than the remainder of the subtraction, after-gear-change gear position synchronous rotational speed - set value Ns (YES at step S122).

Inventors:
FUKUSHIRO EIJI (JP)
OTA KEISUKE (JP)
OSHIMA KOJI (JP)
Application Number:
JP2007067697W
Publication Date:
December 18, 2008
Filing Date:
September 05, 2007
Export Citation:
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Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
FUKUSHIRO, EIJI
OTA, KEISUKE
OSHIMA, KOJI
International Classes:
F16H61/08; F16H59/40; F16H59/42; F16H61/686
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