JPS5559023A - Farm working vehicle - Google Patents

Farm working vehicle

Info

Publication number
JPS5559023A
JPS5559023A JP13121578A JP13121578A JPS5559023A JP S5559023 A JPS5559023 A JP S5559023A JP 13121578 A JP13121578 A JP 13121578A JP 13121578 A JP13121578 A JP 13121578A JP S5559023 A JPS5559023 A JP S5559023A
Authority
JP
Japan
Prior art keywords
engine
rotational frequency
change
variation
controller
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
JP13121578A
Other languages
Japanese (ja)
Inventor
Yoshiyasu Suzuki
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP13121578A priority Critical patent/JPS5559023A/en
Publication of JPS5559023A publication Critical patent/JPS5559023A/en
Pending legal-status Critical Current

Links

Landscapes

  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

PURPOSE: Ti relax the change in the rotational frequency of the engine at the initial stage while checking the overrum of the rotational frequency with respect to the set range by detecting the rate of variation in the detection valve of the rotaional frequency.
CONSTITUTION: A clawler properlling device 1 is interlocked to the engine 8 through a fluid pressure type infinitely variable change gear 7. The engine 8 is provided with a mechanism 9 for detecting the rotational frequency of the engine. The detection value of the detection mechanism 9 is impressed to a rotational frequency comparison controller 10. The comparison detection value is inputted with an automatic control mechanism A to a controller 11 when the detection value is deviated from the set range to change the vehicle speed based on the changes in the hulling load. In addition, a controller 12 is provided to compared the detected rate of variation in the engine rotational frequency with the set value per unit time. When the rate of variation in the engine rotational frequency exceeds the set valve, the change is checked by control of the vehicle speed.
COPYRIGHT: (C)1980,JPO&Japio
JP13121578A 1978-10-24 1978-10-24 Farm working vehicle Pending JPS5559023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13121578A JPS5559023A (en) 1978-10-24 1978-10-24 Farm working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13121578A JPS5559023A (en) 1978-10-24 1978-10-24 Farm working vehicle

Publications (1)

Publication Number Publication Date
JPS5559023A true JPS5559023A (en) 1980-05-02

Family

ID=15052720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13121578A Pending JPS5559023A (en) 1978-10-24 1978-10-24 Farm working vehicle

Country Status (1)

Country Link
JP (1) JPS5559023A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355607A (en) * 1980-09-08 1982-10-26 Zemco, Inc. Safety disengagement device for automotive speed control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355607A (en) * 1980-09-08 1982-10-26 Zemco, Inc. Safety disengagement device for automotive speed control system

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