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

Claim 0:
1. A high voltage power system for a battery electric vehicle, comprising:
a high voltage power source configured to be mounted to a trailer unit;
an electrical load configured to be mounted to a tractor configured to be detachably coupled with the trailer unit to form a vehicle suitable for transporting cargo;
an electrical conveyance disposed between the high voltage power source and the load, the electrical conveyance comprising an intermediate span disposed between the tractor and the trailer unit;
a high voltage switch disposed on the tractor or on the trailer unit configured to selectively interrupt current flow and eliminate potential voltage in the electrical conveyance;
a breakaway detection system for detecting impending breakaway between the tractor and the trailer unit, the breakaway detection system comprising:
a spool coupled with one of the tractor and the trailer unit, the spool configured to deploy a portion of a tether coupled with the intermediate span of the electrical conveyance and to retract the deployed portion of the tether;
a sensor configured to detect an extent of the deployed portion of the tether; and
a controller configured to compare the detected extent and with a breakaway threshold value corresponding to a breakaway event and to cause the high voltage switch to open when the detected extent exceeds the threshold value.