JPS57931A - Automatic controller for retarder braking - Google Patents

Automatic controller for retarder braking

Info

Publication number
JPS57931A
JPS57931A JP7585780A JP7585780A JPS57931A JP S57931 A JPS57931 A JP S57931A JP 7585780 A JP7585780 A JP 7585780A JP 7585780 A JP7585780 A JP 7585780A JP S57931 A JPS57931 A JP S57931A
Authority
JP
Japan
Prior art keywords
oil temperature
brake
revolutions
rise
engine
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
JP7585780A
Other languages
Japanese (ja)
Other versions
JPS6312827B2 (en
Inventor
Ryuichi Saigo
Yoshihei Masai
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP7585780A priority Critical patent/JPS57931A/en
Publication of JPS57931A publication Critical patent/JPS57931A/en
Publication of JPS6312827B2 publication Critical patent/JPS6312827B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Controls For Constant Speed Travelling (AREA)
  • Regulating Braking Force (AREA)
  • Control Of Transmission Device (AREA)

Abstract

PURPOSE: To inhibit rise in the temperature of a braking section applying an engine brake with increased level of a brake cooling oil by increasing the revolution speed of the engine with a shift down when the brake oil temperature of a dump truck rises.
CONSTITUTION: A controller 5 receives signals from a wheel speed detector 2, a change step detector 3, and a brake cooling oil temperature detector 4 and outputs a signal to an electric-hydraulic converter 6 to control the wheel velocity according to the set value from a wheel velocity setter 1. The revolutions are memorized in the controller 5 according to the wheel velosity and the change steps and based on the revolutions, a central operation unit 53 provides a shift down signal to raise the engine revolutions when the oil temperature rises. With the rise of the oil temperature, the level of the braking oil increases thereby checking the rise in the cooling oil temperature.
COPYRIGHT: (C)1982,JPO&Japio
JP7585780A 1980-06-05 1980-06-05 Automatic controller for retarder braking Granted JPS57931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7585780A JPS57931A (en) 1980-06-05 1980-06-05 Automatic controller for retarder braking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7585780A JPS57931A (en) 1980-06-05 1980-06-05 Automatic controller for retarder braking

Publications (2)

Publication Number Publication Date
JPS57931A true JPS57931A (en) 1982-01-06
JPS6312827B2 JPS6312827B2 (en) 1988-03-22

Family

ID=13588315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7585780A Granted JPS57931A (en) 1980-06-05 1980-06-05 Automatic controller for retarder braking

Country Status (1)

Country Link
JP (1) JPS57931A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143255A (en) * 1983-12-29 1985-07-29 Aisin Warner Ltd Safety device of vehicle with automatic transmission gear
WO1997049591A1 (en) * 1996-06-26 1997-12-31 Komatsu Ltd. Brake diagnosis device for an automobile
JP5155155B2 (en) * 2006-09-05 2013-02-27 日立建機株式会社 Brake system for electric drive dump truck

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03199750A (en) * 1989-12-26 1991-08-30 Komatsu Ltd Automatic speed change method for running vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60143255A (en) * 1983-12-29 1985-07-29 Aisin Warner Ltd Safety device of vehicle with automatic transmission gear
WO1997049591A1 (en) * 1996-06-26 1997-12-31 Komatsu Ltd. Brake diagnosis device for an automobile
US6115662A (en) * 1996-06-26 2000-09-05 Komatsu Ltd. Brake diagnosis apparatus for self-propelled vehicle
JP5155155B2 (en) * 2006-09-05 2013-02-27 日立建機株式会社 Brake system for electric drive dump truck

Also Published As

Publication number Publication date
JPS6312827B2 (en) 1988-03-22

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