Title:
油圧制御装置
Document Type and Number:
Japanese Patent JP5904043
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress gear change shock in using a hydraulic pressure from a solenoid valve device to a hydraulic engagement element of an automatic transmission, and also using the same as a signal pressure of a switching valve.SOLUTION: A hydraulic control device 50 includes: a switching valve 60 for limp home; a first solenoid relay valve 70 forming a first output state by thrust of a hydraulic pressure Psl1 from a first linear solenoid valve SL1 and forming a second output state in accompany with lowering of the hydraulic pressure Psl1; a second solenoid relay valve 80; a first signal pressure output valve S1; and a speed change ECU 21, and a second hydraulic pressure and a drive range PD or a second signal pressure P2 as opposite pressure, are supplied to the first solenoid relay valve 70 before the hydraulic pressure Psl1 rises to a pressure to bring the first solenoid relay valve 70 into the second output state in accompany with execution of a processing for raising the hydraulic pressure Psl1 from the first linear solenoid valve SL1.
Inventors:
Hiroru Yamada
Yoshimitsu Hyodo
Kenichi Tsuchida
Kazunori Ishikawa
Yoshimitsu Hyodo
Kenichi Tsuchida
Kazunori Ishikawa
Application Number:
JP2012158650A
Publication Date:
April 13, 2016
Filing Date:
July 17, 2012
Export Citation:
Assignee:
Aisin AW Co., Ltd.
International Classes:
F16H61/06; F16H61/12
Domestic Patent References:
| JP2012007630A | ||||
| JP2012002350A | ||||
| JP2009133436A |
Attorney, Agent or Firm:
Aitec International Patent Office