Patent ID: 11915869
Assignee: HANCHETT ENTRY SYSTEMS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A method for releasing a latch or a keeper of a latch system from a preloaded condition, wherein said latch system further comprises a solenoid driver and a function generator, wherein said solenoid driver is configured for releasing said latch or said keeper, wherein said function generator is configured for providing a pick current to said solenoid driver, and wherein a preload is applied to said latch or said keeper resulting in said preloaded condition, said method comprising steps of:
a) providing said pick current to said solenoid driver by sweeping a first range of pick current frequencies using said function generator to identify a target frequency that induces a resulting vibration of said latch system;
b) after said first range of pick current frequencies is swept, establishing a second range of pick current frequencies that falls within said first range of pick current frequencies, wherein said second range of pick current frequencies includes said target frequency; and
c) applying said pick current at said second range of pick current frequencies to said solenoid driver to release said latch or said keeper from said preloaded condition by said induced resulting vibration.