Title:
AUTOMATIC TRANSMISSION HYDRAULIC CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016023688
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an automatic transmission hydraulic control device capable of improving switching response of a selector valve at a time of starting idling stop control without setting high the urging force of an urging member.SOLUTION: An automatic transmission hydraulic control device 1 supplies an engagement pressure to a hydraulic chamber 21c from a linear solenoid valve SLC2 to switch a C1 apply relay valve 21 to a left half position, and supplies a Drive range pressure PD to a hydraulic servo 31 of a clutch C-1 from oil passages c1 and c2 when a linear solenoid valve SLC1 is abnormal. In a case of starting idling stop control at a normal time, when a modulator pressure Pmod of a hydraulic chamber 21a falls and a spool 21p is switched to a left half position by an urging force of a spring 21s, the engagement pressure is supplied from the linear solenoid valve SLC2 to the hydraulic chamber 21c for switching assist.SELECTED DRAWING: Figure 3
Inventors:
YAMADA KORYU
KUTSUBO HIROYUKI
YAMADA INAZO
MAKINO KOJI
TSUCHIDA KENICHI
KUTSUBO HIROYUKI
YAMADA INAZO
MAKINO KOJI
TSUCHIDA KENICHI
Application Number:
JP2014147033A
Publication Date:
February 08, 2016
Filing Date:
July 17, 2014
Export Citation:
Assignee:
AISIN AW CO
International Classes:
F16H61/00; F16H61/452; F16H61/686
Domestic Patent References:
| JP2012207722A | 2012-10-25 | |||
| JP2012117643A | 2012-06-21 | |||
| JPH0526334A | 1993-02-02 | |||
| JPS63120952A | 1988-05-25 |
Foreign References:
| WO2010013556A1 | 2010-02-04 |
Attorney, Agent or Firm:
Kazuo Chikajima
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