beta
/Intelligent High Voltage Interlock Loop With Individualized Detection Of Connector Connectivity
Abstract

The technology disclosed herein enables a detector of a high voltage interlock loop to determine connectivity of high voltage connectors on an individual basis. In a particular example, an apparatus includes a loop current source configured to transmit a loop current for the high voltage interlock loop. The apparatus also includes a first-jumper current source connected to the high voltage interlock loop in parallel with a first jumper of a first high voltage connector. The apparatus further includes a second-jumper current source connected to the high voltage interlock loop after the first-jumper current source and in parallel with a second jumper of a second high voltage connector. Also, the apparatus includes a detector configured to determine connectivity of the two high voltage connectors based on whether the loop current, the first jumper current, or the second jumper current is received by the detector.

Full Text

What is claimed is:

The technology disclosed herein enables a detector of a high voltage interlock loop to determine connectivity of high voltage connectors on an individual basis. In a particular example, an apparatus includes a loop current source configured to transmit a loop current for the high voltage interlock loop. The apparatus also includes a first-jumper current source connected to the high voltage interlock loop in parallel with a first jumper of a first high voltage connector. The apparatus further includes a second-jumper current source connected to the high voltage interlock loop after the first-jumper current source and in parallel with a second jumper of a second high voltage connector. Also, the apparatus includes a detector configured to determine connectivity of the two high voltage connectors based on whether the loop current, the first jumper current, or the second jumper current is received by the detector.
Timeline
Filed
06/15/2026
Published
10/01/2026
Granted
Not Available
IPC Codes(3)
B60L 3/00:Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption (methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L 58/00)
G01R 31/00:Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (testing or measuring semiconductors or solid state devices during manufacture H10P 74/00; testing line transmission systems H04B 3/46)
G01R 31/66:Testing of connections, e.g. of plugs or non-disconnectable joints (testing for incorrect line connections G01R 31/55)