Invention Grant
- Patent Title: Dynamic control of an industrial machine
- Patent Title (中): 工业机械的动态控制
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Application No.: US13688699Application Date: 2012-11-29
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Publication No.: US09361270B2Publication Date: 2016-06-07
- Inventor: Joseph Colwell , Mooyoung Lee
- Applicant: Harnischfeger Technologies, Inc.
- Applicant Address: US DE Wilmington
- Assignee: Harnischfeger Technologies, Inc.
- Current Assignee: Harnischfeger Technologies, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Michael Best & Friedrich LLP
- Main IPC: G06F17/00
- IPC: G06F17/00 ; E02F3/46 ; E02F9/20 ; E02F9/26

Abstract:
A method of controlling a digging operation of an industrial machine. The industrial machine includes a dipper, a hoist rope attached to the dipper, a hoist motor moving the hoist rope and the dipper, and a computer having a controller. The method includes monitoring a speed of the hoist motor, determining an acceleration rate of the hoist motor, comparing the acceleration rate of the hoist motor to a threshold reverse factor, determining an impact situation when the acceleration rate is less than the threshold reverse factor, and sending a reverse torque control command signal to the hoist motor.
Public/Granted literature
- US20130138305A1 DYNAMIC CONTROL OF AN INDUSTRIAL MACHINE Public/Granted day:2013-05-30
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