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Patent Searching and Data


Title:
START CLUTCH CONTROL METHOD AND START CLUTCH CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/175310
Kind Code:
A1
Abstract:
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.

Inventors:
OGATA, Makoto (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
SANO, Kazuhiro (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
FUJII, Tomoharu (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
YOSHIDA, Susumu (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
Application Number:
JP2016/061139
Publication Date:
October 12, 2017
Filing Date:
April 05, 2016
Export Citation:
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Assignee:
NISSAN MOTOR CO., LTD. (2 Takaracho, Kanagawa-ku Yokohama-sh, Kanagawa 23, 〒2210023, JP)
International Classes:
F16D48/02; B60W10/10; B60W20/30; F16H61/04
Foreign References:
JP2004504217A2004-02-12
JP2006097767A2006-04-13
JP2006105132A2006-04-20
JPH02163520A1990-06-22
Attorney, Agent or Firm:
NISHIWAKI, Tamio (Tokyo Tatemono Yaesu Bldg. 2F, 4-16 Yaesu 1-chome, Chuo-k, Tokyo 28, 〒1030028, JP)
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