Detection mechanism and detection device for brake of AT (Automatic Transmission)

The invention provides a detection mechanism for a brake of an AT (Automatic Transmission). The detection mechanism comprises an outer shell which is provided with a mounting cavity; an inner shell which is mounted in the mounting cavity and is provided with a detection cavity in which a brake; a first detection shaft which is provided with an extending end located in the detection cavity of the inner shell and an exposed end exposed out of the outer shell; and a second detection shaft which is coaxially arranged with the first detection shaft and is provided with an extending end positioned in the detection cavity of the inner shell and an exposed end exposed outside the outer shell. The brake sleeves the first detection shaft and the second detection shaft at the same time. The invention further provides a detection device for a brake of an AT. According to the detection mechanism and the detection device for a brake of an AT, the problem that in the prior art, an individual brake in an AT cannot be detecte