Title:
建設機械の旋回制御装置
Document Type and Number:
Japanese Patent JP7275882
Kind Code:
B2
Abstract:
To provide a revolving control device for construction machines that can reduce timing variations depending on work types for generating hydraulic braking for a revolving motor, even if deceleration operation is started at the time when the revolving speed does not reach the maximum speed with respect to the operation amount of a revolving operation lever.SOLUTION: The revolving control device for construction machines comprises: a pilot pressure calculation unit 92 that calculates, based on a revolving speed, braking pilot pressure for generating hydraulic braking for a revolving motor; a deceleration operation determination unit 91 that determines whether a revolving operation member 31 has received deceleration operation that is operation for reducing the revolving speed; and a decompression signal input unit 93 that inputs, to a decompression valve 50A or 50B, a decompression command signal for decompressing pilot pressure output from a revolving pilot valve 32 to the braking pilot pressure when the deceleration operation determination unit 91 determines that the revolving operation member 31 has received the deceleration operation.SELECTED DRAWING: Figure 3
Inventors:
Koji Inoue
Koji Ueda
Youhei Ohno
Koji Ueda
Youhei Ohno
Application Number:
JP2019110000A
Publication Date:
May 18, 2023
Filing Date:
June 13, 2019
Export Citation:
Assignee:
Kobelco Construction Machinery Co., Ltd.
International Classes:
E02F9/22
Domestic Patent References:
| JP2012241426A | ||||
| JP10212092A | ||||
| JP2018028196A |
Attorney, Agent or Firm:
Masataka Kotani
Youzo Nakamura
Youzo Nakamura