Title:
VEHICLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2016014404
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicle transmission capable of speeding up shift control responsiveness at a time of changing to a predetermined running mode as compared with conventional techniques and improving drivability.SOLUTION: Under predetermined conditions in a torque split running mode of using both a belt continuously variable transmission mechanism 4 and a gear transmission mechanism 5, a control is executed to make belt holding pressure F of the belt continuously variable transmission mechanism 4 higher than belt holding pressure at normal time and to increase belt winding diameter of a primary pulley 40a of the belt continuously variable transmission mechanism 4 in a case of changing a transmission gear ratio γof the belt continuously variable transmission 4 from a low ratio to a high ratio so as to increase a total transmission gear ratio of the belt continuously variable transmission and the gear transmission mechanism 5 as a step transmission mechanism having a fixed transmission gear ratio.
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Inventors:
IMAI KATSUMASA
KAWARADA HARUKA
KAWARADA HARUKA
Application Number:
JP2014135342A
Publication Date:
January 28, 2016
Filing Date:
June 30, 2014
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F16H61/02; F16H37/02; F16H61/04; F16H61/662; F16H61/686
Domestic Patent References:
| JP2004100921A | 2004-04-02 | |||
| JP2003120802A | 2003-04-23 | |||
| JP2000289496A | 2000-10-17 | |||
| JP2005016613A | 2005-01-20 | |||
| JP2004176890A | 2004-06-24 | |||
| JP2012214071A | 2012-11-08 |
Foreign References:
| WO2013046393A1 | 2013-04-04 |
Attorney, Agent or Firm:
Masato Tsutsui