Title:
LIFT CONTROLLING APPARATUS
Document Type and Number:
Japanese Patent JP3044189
Kind Code:
B2
Abstract:
PURPOSE: To suppress excessive acceleration of a tilling apparatus and to perform smooth control of lifting motion.
CONSTITUTION: This lift controlling apparatus is provided with a positional deviation detection means A to get the deviation of the present level of a rotary tiller from an arbitrarily set target level and with a controlling level setting means C to receive the positional deviation from the positional deviation detection means, convert the deviation value to a membership value by a preset membership function, determine the control target based on the membership value and the membership function and use the control target as a value for adjusting the opening of a control valve V of a hydraulic actuator 7 to vertically move the rotary tiller to a side to decrease the positional deviation.
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Inventors:
Satoshi Iida
Shohei Nakai
Shohei Nakai
Application Number:
JP5297696A
Publication Date:
May 22, 2000
Filing Date:
March 11, 1996
Export Citation:
Assignee:
Kubota Corporation
International Classes:
A01B63/111; F15B9/08; G05B13/02; (IPC1-7): A01B63/111; F15B9/08; G05B13/02
Domestic Patent References:
| JP6028290A | ||||
| JP644563A | ||||
| JP63176739A | ||||
| JP62244304A | ||||
| JP6387902A |
Attorney, Agent or Firm:
Shuichiro Kitamura