Patent ID: 11919343
Assignee: HEXAGON PURUS NORTH AMERICA HOLDINGS INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 14:
15. A breakaway detection system for detecting impending breakaway between a tractor and a trailer unit of a heavy duty truck, the breakaway detection system comprising:
a spool assembly configured to couple with one of the tractor and the trailer unit, the spool assembly comprising a spool body configured to deploy a length of an extendable tether and to retract the length and a spring configured to apply a torque to the spool body to retract the deployed length, the tether configured to couple with an electrical conveyance configured to convey high voltage current between a battery and a load;
a sensor configured to detect the length of the tether that has been deployed; and
a controller configured to receive an input from the sensor corresponding to the detected length, to compare the detected length to a threshold and to implement a countermeasure when the detected length exceeds the threshold.