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JPS55123041A - Hydraulic controller of automatic transmission - Google Patents

Hydraulic controller of automatic transmission

Info

Publication number
JPS55123041A
JPS55123041A JP3067979A JP3067979A JPS55123041A JP S55123041 A JPS55123041 A JP S55123041A JP 3067979 A JP3067979 A JP 3067979A JP 3067979 A JP3067979 A JP 3067979A JP S55123041 A JPS55123041 A JP S55123041A
Authority
JP
Japan
Prior art keywords
throttle
control valve
transmission
valve
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3067979A
Other languages
Japanese (ja)
Inventor
Hiroshi Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP3067979A priority Critical patent/JPS55123041A/en
Publication of JPS55123041A publication Critical patent/JPS55123041A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To eliminate positive torque imposed by inertial force of an engine onto an output shaft of transmission when the transmission is shifted to higher gear, by delaying occurrence of the shifting when the accelerator pedal is quickly relaxed.
CONSTITUTION: A hydraulic controller of an automatic transmission is equipped with a line control valve 42, manual reversing valve 44, throttle control valve 45, detent control valve 46, governor control valve 53, 1-2 and 2-3 transmission valves 56, 57, etc. A throttle element 101 and check valve 102 are set in parallel in the middle of an oil passage 52m. When the accelerator pedal is quickly relaxed and throttle oil pressure on a feed port 52 of the throttle control valve 45 is quickly reduced, reflux of throttle transferring oil from the gear-shifting control valves 56, 57 to the control valve 45 is shut off by the check valve 102, and the gear-shift is accomplished through slow control of the throttle 101.
COPYRIGHT: (C)1980,JPO&Japio
JP3067979A 1979-03-16 1979-03-16 Hydraulic controller of automatic transmission Pending JPS55123041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3067979A JPS55123041A (en) 1979-03-16 1979-03-16 Hydraulic controller of automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3067979A JPS55123041A (en) 1979-03-16 1979-03-16 Hydraulic controller of automatic transmission

Publications (1)

Publication Number Publication Date
JPS55123041A true JPS55123041A (en) 1980-09-22

Family

ID=12310381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3067979A Pending JPS55123041A (en) 1979-03-16 1979-03-16 Hydraulic controller of automatic transmission

Country Status (1)

Country Link
JP (1) JPS55123041A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722251A (en) * 1985-07-31 1988-02-02 Aisin-Warner Kabushiki Kaisha Hydraulic circuit for controlling an automatic transmission
US4722250A (en) * 1985-07-31 1988-02-02 Aisin-Warner Kabushiki Kaisha Accumulator back pressure control apparatus for automatic transmission
US4727773A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Hydraulic circuit for controlling automatic transmission
US4727774A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Cut-back pressure control device for multi-speed automatic transmission
US4727772A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Multistage automatic shift control apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4722251A (en) * 1985-07-31 1988-02-02 Aisin-Warner Kabushiki Kaisha Hydraulic circuit for controlling an automatic transmission
US4722250A (en) * 1985-07-31 1988-02-02 Aisin-Warner Kabushiki Kaisha Accumulator back pressure control apparatus for automatic transmission
US4727773A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Hydraulic circuit for controlling automatic transmission
US4727774A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Cut-back pressure control device for multi-speed automatic transmission
US4727772A (en) * 1985-07-31 1988-03-01 Aisin-Warner Kabushiki Kaisha Multistage automatic shift control apparatus

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