JPS6480204A - Control device for position of working machine based on ground - Google Patents

Control device for position of working machine based on ground

Info

Publication number
JPS6480204A
JPS6480204A JP23475787A JP23475787A JPS6480204A JP S6480204 A JPS6480204 A JP S6480204A JP 23475787 A JP23475787 A JP 23475787A JP 23475787 A JP23475787 A JP 23475787A JP S6480204 A JPS6480204 A JP S6480204A
Authority
JP
Japan
Prior art keywords
working machine
deviation
duty ratio
fall
rise
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
JP23475787A
Other languages
Japanese (ja)
Inventor
Hideyuki Sakamoto
Hironobu Kato
Toru Takeda
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP23475787A priority Critical patent/JPS6480204A/en
Publication of JPS6480204A publication Critical patent/JPS6480204A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)

Abstract

PURPOSE:To prevent overrun in suspension of an actuator for fluid pressure for driving rise and fall of a working machine depending upon deviation of an upper limit position or a lower limit position from a present position, by changing the on-time duty ratio of an on-off valve of the actuator. CONSTITUTION:Deviation of a set upper limit position of a working machine from a present position or deviation of a set lower limit position of the working machine from the present position in rise and fall operation of the working machine is repeatedly compared with a calculation table of an on-time duty ratio of a memory part 24 of an on-time duty ratio of on-off valves 26 and 27 of an actuator for fluid pressure for driving rise and fall of a working machine to change the on-time duty ratio. When the deviation is lessened, the rise and fall speed of the working machine is reduced.
JP23475787A 1987-09-21 1987-09-21 Control device for position of working machine based on ground Pending JPS6480204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23475787A JPS6480204A (en) 1987-09-21 1987-09-21 Control device for position of working machine based on ground

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23475787A JPS6480204A (en) 1987-09-21 1987-09-21 Control device for position of working machine based on ground

Publications (1)

Publication Number Publication Date
JPS6480204A true JPS6480204A (en) 1989-03-27

Family

ID=16975877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23475787A Pending JPS6480204A (en) 1987-09-21 1987-09-21 Control device for position of working machine based on ground

Country Status (1)

Country Link
JP (1) JPS6480204A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01269405A (en) * 1988-04-21 1989-10-26 Mitsubishi Agricult Mach Co Ltd Control device of working machine of movable agricultural machine
JPH0358906U (en) * 1989-10-12 1991-06-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01269405A (en) * 1988-04-21 1989-10-26 Mitsubishi Agricult Mach Co Ltd Control device of working machine of movable agricultural machine
JPH0358906U (en) * 1989-10-12 1991-06-10

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