Invention Grant
- Patent Title: Method for position feedback based control for overload protection
- Patent Title (中): 基于位置反馈的过载保护控制方法
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Application No.: US12814841Application Date: 2010-06-14
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Publication No.: US08744603B2Publication Date: 2014-06-03
- Inventor: Xiujie Gao , Lei Hao , Paul W. Alexander , Alan L. Browne , Derek L. Patterson , Mark A. Voss
- Applicant: Xiujie Gao , Lei Hao , Paul W. Alexander , Alan L. Browne , Derek L. Patterson , Mark A. Voss
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G05B11/01
- IPC: G05B11/01 ; G05B9/02 ; G05D1/10

Abstract:
A method for executing mechanical overload protection to prevent commanding a control signal to a linear actuator that may mechanically overload the linear actuator when an overload condition of the linear actuator is detected, the linear actuator utilized for controlling a movable element associated with the linear actuator responsive to the control signal, includes monitoring an overload condition based on position change of the movable element associated with the linear actuator during an integration period and excess energy during the integration period, de-energizing the linear actuator when an overload condition has been detected, monitoring an overload retry counter based on the number of cycles the overload condition is detected, comparing the overload retry counter to an overload retry threshold, an reenergizing the linear actuator when the overload retry counter is less than the overload retry threshold and maintaining de-energizing of the linear actuator when the overload retry counter is at least the overload retry threshold.
Public/Granted literature
- US20100332035A1 METHOD FOR POSITION FEEDBACK BASED CONTROL FOR OVERLOAD PROTECTION Public/Granted day:2010-12-30
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