Patent №
US 8,972,032
Granted
2015-03-03
Filed 2010
Owner
GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Lab
—
AI components
2
planning · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
12797911
A method for detecting a mechanical overload condition of an energized linear actuator to prevent commanding an activation signal to the linear actuator that may mechanically overload the linear actuator includes monitoring feedback variation of a movable element associated with the linear actuator including monitoring a present feedback signal of the movable element, monitoring a previous feedback signal of the movable element, comparing the present feedback signal and the previous feedback signal and determining the feedback variation based on the comparing. The feedback variation is compared to a feedback variation threshold. An input signal associated with the activation signal for controlling the linear actuator is monitored and the input signal compared to an input signal threshold. The electrical overload condition is detected when the feedback variation is less than the feedback variation threshold and the input signal is greater than the input signal threshold.
AI classification
Ownership
GM GLOBAL TECHNOLOGY OPERATIONS, INC.
assignment · 245160897
Assignors
HAO, LEI, GAO, XIUJIE, NAIK, SANJEEV M.
On an employer assignment, the assignors are typically the inventors.