START CLUTCH CONTROL METHOD AND START CLUTCH CONTROL DEVICE

WIPO Patent Application WO/2017/175310

A1

The present invention can sufficiently cool a start clutch by using transmission oil when a vehicle starts on a sloped road, and thereby, suppresses deterioration of durability of the start clutch caused by heat. In the present invention, an automatic transmission (AT) is provided between a driving source (Eng, MG) and drive wheels (RL, RR). The automatic transmission (AT) includes a plurality of frictional engagement elements (C1-C3, B1-B4) for switching among a plurality of gears. As a start clutch, one of the plurality of frictional engagement elements which are engaged when a vehicle starts, is brought into slip engagement. This start clutch control method comprises: determining, when a vehicle starts, whether or not the vehicle is starting on an inclined road (100); selecting, when the vehicle is determined to being starting on the inclined road (100), a frictional engagement element to be disposed at such a position as to be immersed in transmission oil (ATF) from among the plurality of frictional engagement elements (C1-C3, B1-B4) which are engaged when the vehicle starts; and bringing the selected frictional engagement element, as a rearward start clutch, into slip engagement.

JP2014234008	SHIFT CONTROL APPARATUS
JPH05248559	SOLENOID PROPORTIONAL PRESSURE CONTROL VALVE

OGATA MAKOTO (JP)
SANO KAZUHIRO (JP)
FUJII TOMOHARU (JP)
YOSHIDA SUSUMU (JP)

PCT/JP2016/061139

October 12, 2017

April 05, 2016

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NISSAN MOTOR (JP)

F16D48/02; B60W10/10; B60W20/30; F16H61/04

JP2004504217A	2004-02-12
JP2006097767A	2006-04-13
JP2006105132A	2006-04-20
JPH02163520A	1990-06-22

NISHIWAKI, Tamio (JP)

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