JPS6487951A - Hydraulic speed change control device for automatic transmission - Google Patents

Hydraulic speed change control device for automatic transmission

Info

Publication number
JPS6487951A
JPS6487951A JP24627687A JP24627687A JPS6487951A JP S6487951 A JPS6487951 A JP S6487951A JP 24627687 A JP24627687 A JP 24627687A JP 24627687 A JP24627687 A JP 24627687A JP S6487951 A JPS6487951 A JP S6487951A
Authority
JP
Japan
Prior art keywords
speed change
throttle opening
speed
sensor
reducing
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.)
Granted
Application number
JP24627687A
Other languages
Japanese (ja)
Other versions
JP2705071B2 (en
Inventor
Hiroaki Maeda
Takahiro Midori
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP62246276A priority Critical patent/JP2705071B2/en
Publication of JPS6487951A publication Critical patent/JPS6487951A/en
Application granted granted Critical
Publication of JP2705071B2 publication Critical patent/JP2705071B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To suppress a speed change shock by providing a control circuit actuating a solenoid valve in the point of time starting the action and ending it preset corresponding to a throttle opening and reducing an output pressure of oil in a regulator valve. CONSTITUTION:When a card speed reaches the speed change car speed with a certain throttle opening, an electronic control unit 28, being based on signals of a throttle opening sensor 30, car speed sensor 32, select range sensor 34 and a shift position condition sensor serving as the speed change detecting device, outputs a duty ratio signal to a solenoid valve 11, actuating it in a specified manner for the time from the start of speed change to its end point and reducing an output pressure of a regulator valve 4. The time interval between the start and end points is set such that the larger is increased the speed change in proportion to the throttle opening the longer the interval increases. In this way, a speed change shock can be reduced over the total region of the throttle opening.
JP62246276A 1987-09-30 1987-09-30 Transmission hydraulic control unit for automatic transmission Expired - Fee Related JP2705071B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62246276A JP2705071B2 (en) 1987-09-30 1987-09-30 Transmission hydraulic control unit for automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62246276A JP2705071B2 (en) 1987-09-30 1987-09-30 Transmission hydraulic control unit for automatic transmission

Publications (2)

Publication Number Publication Date
JPS6487951A true JPS6487951A (en) 1989-04-03
JP2705071B2 JP2705071B2 (en) 1998-01-26

Family

ID=17146129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62246276A Expired - Fee Related JP2705071B2 (en) 1987-09-30 1987-09-30 Transmission hydraulic control unit for automatic transmission

Country Status (1)

Country Link
JP (1) JP2705071B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124923A (en) * 1989-11-08 1992-06-23 Aisin Seiki Kabushiki Kaisha Retarding apparatus for automotive vehicles
US5357444A (en) * 1990-02-28 1994-10-18 Aisin Seiki Kabushiki Kaisha Retarding control apparatus which operates on the basis of signals such as a shift lever position signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134440U (en) * 1985-02-12 1986-08-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134440U (en) * 1985-02-12 1986-08-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124923A (en) * 1989-11-08 1992-06-23 Aisin Seiki Kabushiki Kaisha Retarding apparatus for automotive vehicles
US5357444A (en) * 1990-02-28 1994-10-18 Aisin Seiki Kabushiki Kaisha Retarding control apparatus which operates on the basis of signals such as a shift lever position signal
US5400251A (en) * 1990-02-28 1995-03-21 Aisin Seiki Kabushiki Kaisha Retarding control apparatus

Also Published As

Publication number Publication date
JP2705071B2 (en) 1998-01-26

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees