Title:
MACHINE FOR WORK
Document Type and Number:
Japanese Patent JP3755963
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To dissolve such an inconvenience that the operation of a hydraulic actuator becomes instable in the second half of a deceleration deviation range in the case of adopting an electromagnetic switching valve low in frequency characteristics.
SOLUTION: At the time of gradually decelerating the extension/contraction operation speed of a lift rod cylinder from the stage that the deviation of a target value and a lift rod sensor value enters a prescribed set deviation range, the cycle of inching signals is fixed first, the extension/contraction speed is decelerated based on the subtraction of a duty, then the duty is fixed and the extension/contraction operation speed is decelerated based on the subtraction of the cycle.
Inventors:
Takeji Tanaka
Tatsuhiko Nojima
Shigeharu Kimura
Satoshi Tamura
Tatsuhiko Nojima
Shigeharu Kimura
Satoshi Tamura
Application Number:
JP13932397A
Publication Date:
March 15, 2006
Filing Date:
May 14, 1997
Export Citation:
Assignee:
Mitsubishi agricultural machinery Co., Ltd.
International Classes:
A01B63/10; F15B9/09; G05B11/28; (IPC1-7): A01B63/10; F15B9/09; G05B11/28
Domestic Patent References:
| JP2027905A | ||||
| JP5302668A | ||||
| JP60231003A |
Attorney, Agent or Firm:
Tetsuo Hirose