JPS5559023A - Farm working vehicle - Google Patents
Farm working vehicleInfo
- 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
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
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)
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 |
-
1978
- 1978-10-24 JP JP13121578A patent/JPS5559023A/en active Pending
Cited By (1)
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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