Title:
CONTROL DEVICE OF TRANSMISSION
Document Type and Number:
Japanese Patent JP2018173155
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of a transmission capable of suppressing occurrence of belt slip in switching modes.SOLUTION: In switching a mode from a split mode to a belt mode, a transmission torque capacity of a clutch C1 at a release side is lowered (T1) in a stage when differential rotation (rotating speed difference between secondary rotating speed and output rotating speed) occurs at both sides of a clutch C2 at an engagement side. Thus the clutch C1 is kept in a half clutch state, slip occurs in the clutch C1, rotation at a continuously variable transmission mechanism side is blown up, and the differential rotation at both sides of the clutch C2 is rapidly reduced. When the differential rotation is reduced to a prescribed value, a transmission torque capacity of the clutch C2 is increased (T2). Before the transmission torque capacity of the clutch C2 is increased, a belt compression pressure of the continuously variable transmission mechanism is increased higher than a necessary compression pressure.SELECTED DRAWING: Figure 6
Inventors:
MIYAJI HIROSHI
SHIBUKUCHI KEITA
KISHI DAISUKE
SAGAYAMA NORIYA
SHIBUKUCHI KEITA
KISHI DAISUKE
SAGAYAMA NORIYA
Application Number:
JP2017073315A
Publication Date:
November 08, 2018
Filing Date:
March 31, 2017
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F16H61/02; F16H37/02; F16H61/662
Domestic Patent References:
| JP2015161398A | 2015-09-07 | |||
| JP2015163808A | 2015-09-10 | |||
| JP2016125569A | 2016-07-11 | |||
| JP2016014404A | 2016-01-28 |
Attorney, Agent or Firm:
Yuichi Minagawa