Title:
自動変速機の油圧制御装置
Document Type and Number:
Japanese Patent JP4396350
Kind Code:
B2
Abstract:
A hydraulic control apparatus for an automatic transmission provided with a friction engaging element that operates using hydraulic pressure includes a range pressure oil passage which is connected to the friction engaging element; a manual valve which is connected to the range pressure oil passage; a drain port which is formed in the manual valve and which drains hydraulic pressure of the range pressure oil passage; a drain oil passage which is connected to the drain port; and a drain pressure controller which is connected to the drain oil passage and which performs control so as to change a decreasing rate of drain pressure of the drain oil passage.
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Inventors:
Masaru Morise
Hideki Miyata
Akio Sugawara
Yuji Yasuda
Hideki Miyata
Akio Sugawara
Yuji Yasuda
Application Number:
JP2004092421A
Publication Date:
January 13, 2010
Filing Date:
March 26, 2004
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H61/00; F16H61/02; F16H61/06; F16H61/26; F16H59/08; F16H59/18; F16H59/68
Domestic Patent References:
| JP7019326A | ||||
| JP2002323122A | ||||
| JP4254059A | ||||
| JP6002762A | ||||
| JP10089452A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Takao Matsuyama
Tadashi Muto
Toshio Morita
Takao Matsuyama
Tadashi Muto