US 11,699,998 B2
Switch assembly with feedback signal for fault detection
James D. Shaw, Carmel, IN (US); and Aaron Ransdell, Brownsburg, IN (US)
Assigned to Allison Transmission, Inc., Indianapolis, IN (US)
Filed by Allison Transmission, Inc., Indianapolis, IN (US)
Filed on Aug. 17, 2021, as Appl. No. 17/445,208.
Prior Publication US 2023/0058494 A1, Feb. 23, 2023
Int. Cl. G01R 31/327 (2006.01); H03K 5/24 (2006.01); H03K 19/003 (2006.01); G06F 3/02 (2006.01)
CPC H03K 19/003 (2013.01) [G01R 31/3277 (2013.01); H03K 5/24 (2013.01); G06F 3/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A switch assembly, comprising:
a logic circuit that has a signal input terminal and a signal output terminal; and
a switch with an input terminal and an output terminal, wherein the input terminal is electrically connected to the signal output terminal of the logic circuit, wherein the output terminal is electrically connected to the signal input terminal of the logic circuit, and wherein the switch is configured to electrically connect the input and output terminals when closed;
wherein the logic circuit is operable to send an input signal to the switch via the signal output terminal;
wherein the switch is operable to send an output signal to the logic circuit via the output terminal when the switch is closed; and
wherein the logic circuit is configured to compare the output signal received from the switch to the input signal sent to the switch.