The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Jun. 14, 2010
Xiujie Gao, Troy, MI (US);
Lei Hao, Troy, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Derek L. Patterson, Shelby Township, MI (US);
Mark A. Voss, Richmond, MI (US);
Xiujie Gao, Troy, MI (US);
Lei Hao, Troy, MI (US);
Paul W. Alexander, Ypsilanti, MI (US);
Alan L. Browne, Grosse Pointe, MI (US);
Derek L. Patterson, Shelby Township, MI (US);
Mark A. Voss, Richmond, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
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.