JPS56115430A - Blade load controller - Google Patents

Blade load controller

Info

Publication number
JPS56115430A
JPS56115430A JP1884880A JP1884880A JPS56115430A JP S56115430 A JPS56115430 A JP S56115430A JP 1884880 A JP1884880 A JP 1884880A JP 1884880 A JP1884880 A JP 1884880A JP S56115430 A JPS56115430 A JP S56115430A
Authority
JP
Japan
Prior art keywords
strain
signal
bulldozer
mission
modulator
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
JP1884880A
Other languages
Japanese (ja)
Other versions
JPS6337214B2 (en
Inventor
Keishiro Kurihara
Tetsuya Nakayama
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 JP1884880A priority Critical patent/JPS56115430A/en
Publication of JPS56115430A publication Critical patent/JPS56115430A/en
Publication of JPS6337214B2 publication Critical patent/JPS6337214B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To deliver the maximum working capacity of a bulldozer to cope with any changes in soil feature by controlling a blade load of a bulldozer detecting it from a strain of a shaft connecting a torque converter and a mission.
CONSTITUTION: A strain gauge 23 is provided on a shaft connecting a torque converter and a mission and a strain of the shaft is checked for to detect a traction force. In other words, the strain level detected with the strain gauge 23 is added to an FM modulator 33 through a bridge amplifier. The modulator 33 modulates a signal corresponding to the strain on the same frequency basis and transmits it with an FM transmitter 34. An FM receiver 37 demodulates the signal received with an FM demodulator 38 to obtain a signal ec. A wheel speed detector 4 outputs an actual wheel speed signal eB from which an arithmetic indicator 5 computes an effective traction output P. A control operation unit 10 adds a voltage corresponding to a deviation obtained at adding points AP to a solenoid valve 12 through a driving section 11 to control it by switching thereby controlling the load of a blade 14.
COPYRIGHT: (C)1981,JPO&Japio
JP1884880A 1980-02-18 1980-02-18 Blade load controller Granted JPS56115430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1884880A JPS56115430A (en) 1980-02-18 1980-02-18 Blade load controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1884880A JPS56115430A (en) 1980-02-18 1980-02-18 Blade load controller

Publications (2)

Publication Number Publication Date
JPS56115430A true JPS56115430A (en) 1981-09-10
JPS6337214B2 JPS6337214B2 (en) 1988-07-25

Family

ID=11982968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1884880A Granted JPS56115430A (en) 1980-02-18 1980-02-18 Blade load controller

Country Status (1)

Country Link
JP (1) JPS56115430A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011590A1 (en) * 1988-05-16 1989-11-30 Kabushiki Kaisha Komatsu Seisakusho Adaptive engine output mode setting method based on shoe slip
WO2023089891A1 (en) * 2021-11-16 2023-05-25 日本国土開発株式会社 Scraper vehicle and towing vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5968103A (en) * 1997-01-06 1999-10-19 Caterpillar Inc. System and method for automatic bucket loading using crowd factors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989011590A1 (en) * 1988-05-16 1989-11-30 Kabushiki Kaisha Komatsu Seisakusho Adaptive engine output mode setting method based on shoe slip
US5219411A (en) * 1988-05-16 1993-06-15 Kabushiki Kaisha Komatsu Seisakusho Adaptive engine output mode setting method based on shoe slip
US5333479A (en) * 1988-05-16 1994-08-02 Kabushiki Kaisha Komatsu Seisakusho Adaptive engine output mode setting method based on shoe slip
WO2023089891A1 (en) * 2021-11-16 2023-05-25 日本国土開発株式会社 Scraper vehicle and towing vehicle

Also Published As

Publication number Publication date
JPS6337214B2 (en) 1988-07-25

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