Title:
油圧制御装置
Document Type and Number:
Japanese Patent JP6405527
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic control device that can switch to a fail-safe mode safely and reliably in a split-type automatic transmission including an automatic transmission and an auxiliary transmission.SOLUTION: The hydraulic control device includes: automatic transmission mode travel preparation means that causes the automatic transmission to transition to a predetermined transmission gear ratio at a first stage to cancel the lock up of a torque converter and supply clutch pressure for an automatic transmission mode; and split mode travel stop means that blocks clutch pressure for split mode at a second state to cause the automatic transmission to transition to travel by the automatic transmission mode, when an element constituting a hydraulic circuit for the automatic transmission is broken.
Inventors:
Yusuke Hirano
Application Number:
JP2014135195A
Publication Date:
October 17, 2018
Filing Date:
June 30, 2014
Export Citation:
Assignee:
Daihatsu Motor Co., Ltd.
International Classes:
F16H37/02; F16H61/00; F16H61/12
Domestic Patent References:
| JP712201A | ||||
| JP5164240A | ||||
| JP200516613A | ||||
| JP2009168211A | ||||
| JP7139608A | ||||
| JP20127598A |
Attorney, Agent or Firm:
Nobuyuki Yamaguchi