JPS5680546A - Trouble warning device of automatic speed change gear for vehicle - Google Patents

Trouble warning device of automatic speed change gear for vehicle

Info

Publication number
JPS5680546A
JPS5680546A JP15607179A JP15607179A JPS5680546A JP S5680546 A JPS5680546 A JP S5680546A JP 15607179 A JP15607179 A JP 15607179A JP 15607179 A JP15607179 A JP 15607179A JP S5680546 A JPS5680546 A JP S5680546A
Authority
JP
Japan
Prior art keywords
speed change
torque
automatic speed
value
change 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.)
Granted
Application number
JP15607179A
Other languages
Japanese (ja)
Other versions
JPS634058B2 (en
Inventor
Masashi Nishimura
Nobuaki Miki
Shoji Yokoyama
Hidehiro Kondo
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 AW Co Ltd
Original Assignee
Aisin AW 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 AW Co Ltd filed Critical Aisin AW Co Ltd
Priority to JP15607179A priority Critical patent/JPS5680546A/en
Publication of JPS5680546A publication Critical patent/JPS5680546A/en
Publication of JPS634058B2 publication Critical patent/JPS634058B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To previously inform an abnormal state of an automatic speed change gear to the driver, by continuously measuring speed change time of the automatic speed change device at a constant degree of throttle opening.
CONSTITUTION: An analog value of output torque detected by a torque converter 1 mounted to an output shaft 15 of an automatic speed change gear 16 is converted into a digital value through an AD converter 2, feed into a torque equalizer 3 for a given period and converted into an average value of torque. A subtracter 5 makes subtraction between the average value of torque and the same value stored in a memory 4 a certain time before, and transmits the appropriate output. While, an analog value of throttle opening detected by a detecting device 7 is converted into a digital value through an AD converter 8, and a difference between throttle openings at every specified time is detected in a subtracter 10. Then, a comparator 13 compares a speed change time with that corresponding to a digital signal of throttle opening, and an output is transmitted to a warning circuit 14, in accordance with the result.
COPYRIGHT: (C)1981,JPO&Japio
JP15607179A 1979-11-30 1979-11-30 Trouble warning device of automatic speed change gear for vehicle Granted JPS5680546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15607179A JPS5680546A (en) 1979-11-30 1979-11-30 Trouble warning device of automatic speed change gear for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15607179A JPS5680546A (en) 1979-11-30 1979-11-30 Trouble warning device of automatic speed change gear for vehicle

Publications (2)

Publication Number Publication Date
JPS5680546A true JPS5680546A (en) 1981-07-01
JPS634058B2 JPS634058B2 (en) 1988-01-27

Family

ID=15619661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15607179A Granted JPS5680546A (en) 1979-11-30 1979-11-30 Trouble warning device of automatic speed change gear for vehicle

Country Status (1)

Country Link
JP (1) JPS5680546A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60222328A (en) * 1984-04-18 1985-11-06 Hitachi Ltd Transmission controller
JPS6220941A (en) * 1985-07-19 1987-01-29 Toshiba Seiki Kk Torque transmission method and device therefor
US5113720A (en) * 1987-06-24 1992-05-19 Kabushiki Kaisha Komatsu Seisakusho Apparatus for controlling gear box

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132451A (en) * 1979-04-03 1980-10-15 Nissan Motor Co Ltd Speed change control device for automatic speed changer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55132451A (en) * 1979-04-03 1980-10-15 Nissan Motor Co Ltd Speed change control device for automatic speed changer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60222328A (en) * 1984-04-18 1985-11-06 Hitachi Ltd Transmission controller
JPS6220941A (en) * 1985-07-19 1987-01-29 Toshiba Seiki Kk Torque transmission method and device therefor
US5113720A (en) * 1987-06-24 1992-05-19 Kabushiki Kaisha Komatsu Seisakusho Apparatus for controlling gear box

Also Published As

Publication number Publication date
JPS634058B2 (en) 1988-01-27

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