US 11,654,883 B2
Current based anti-chatter latch
Aaron Walker, Auburn Hills, MI (US); and Mateusz Zadrozny, Macomb, MI (US)
Assigned to FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Apr. 16, 2021, as Appl. No. 17/232,892.
Prior Publication US 2022/0332304 A1, Oct. 20, 2022
Int. Cl. B60W 20/13 (2016.01)
CPC B60W 20/13 (2016.01) [B60W 2510/244 (2013.01); B60W 2710/08 (2013.01); B60W 2710/248 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An automotive power system comprising:
a relay including a coil; and
a controller programed to command the relay to open responsive to (i) a measured voltage across the coil remaining less than a voltage threshold for at least a predetermined period of time and (ii) a current through the coil measured after the predetermined period of time being less than a current threshold.