Apparatuses, Systems, and Methods for Doors Of An Autonomous Delivery Vehicle

Abstract

A retention assembly may comprise a motor assembly and a self-locking worm drive coupled thereto. A cam may be fixed to a worm gear of the worm drive. The retention assembly may further comprise an actuation shaft including a follower. The actuation shaft may be displaceable over a displacement range via rotation of the cam. The retention assembly may further comprise a securement member with a securement member follower, the securement member coupled to a portion of the actuator shaft. The retention assembly may further comprise a housing cam included as part of the retention assembly housing and against which the securement member follower may be biased. The securement member may be in an open state when the actuation shaft is in a first position. The securement member may swing outward to a retaining position as the actuation shaft is moved to a second position.

What is claimed is: 
     
         1 . A method of locking an enclosure comprising:
 displacing a closure member along a first portion of a displacement path, a terminal flange of a latch pin coupled to the closure member contacting a stop projection of a retention assembly upon completion of displacement along the first portion of the displacement path;   rotating a securement member of the retention assembly from an open position to a retaining position and translating the securement member toward a housing of the retention assembly by powering a motor assembly mechanically coupled to the securement member via a transmission assembly including a self-locking worm drive;   pulling the latch pin towards the housing;   pulling the closure member along a second portion of the displacement path, the closure member being against the enclosure upon completion of displacement along the second portion of displacement path;   measuring a rotational position of the securement member with a position sensor of the retention assembly;   receiving, with a controller, an output signal from the position sensor; and   cutting power to the motor assembly, via a command from the controller, when the output signal indicates the securement member has been translated to a predefined point proximal the housing.   
     
     
         2 . The method of  claim 1 , wherein the method further comprises compressing a complaint member between the closure member and the enclosure. 
     
     
         3 . The method of  claim 1 , wherein rotating the securement member comprises displacing a follower of the securement member over a cam surface forming part of the housing. 
     
     
         4 . The method of  claim 1 , wherein pulling the closure member along a second portion of the displacement path comprises displacing the closure member translationally toward the enclosure. 
     
     
         5 . The method of  claim 1 , wherein displacing the closure member along the first portion of the displacement path comprises rotationally displacing the closure member. 
     
     
         6 . The method of  claim 1 , wherein displacing the closure member along the first portion of the displacement path comprises commanding power to a closure member motor assembly coupled to the closure member with a controller. 
     
     
         7 . The method of  claim 6 , wherein the method further comprises monitoring an output signal of a door position sensor with a controller and cutting power to the closure member motor assembly upon the output signal indicating that the terminal flange of the latch pin has contacted the stop projection.