Patent ID: 11927639
Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Field: Transport (Mechanical engineering)
Classification: CPC B  G  Y | IPC B  G

Claim 8:
9. The high-voltage interlocking device of claim 7, wherein
the first driving signal and the second driving signal are both pulse signals,
the fault detection module is configured to:
determine that the short power supply fault occurs in the high-voltage component under detection, under a condition that a second short power supply determination condition is met, wherein the second short power supply determination condition comprises at least one of following sub-conditions: a high-level voltage of the first detection signal is equal to a first reference short power supply voltage, a low-level voltage of the first detection signal is equal to a second reference short power supply voltage, and the third detection signal is a low-level signal and the fourth detection signal is a high-level signal;
determine that the open-circuit fault occurs in the high-voltage component under detection, under a condition that a second open-circuit determination condition is met, wherein the second open-circuit determination condition comprises at least one of following sub-conditions: the high-level voltage of the first detection signal is equal to a first reference open-circuit voltage, the low-level voltage of the first detection signal is equal to a second reference open-circuit voltage, and both the third detection signal and the fourth detection signal are low-level signals;
determine that the short-ground fault occurs in the high-voltage component under detection, under a condition that a second short-ground determination condition is met, wherein the second short-ground determination condition comprises at least one of following sub-conditions: the high-level voltage of the first detection signal is equal to a first reference short-ground voltage, the low-level voltage of the first detection signal is equal to a second reference short-ground voltage, and the third detection signal comprises a high-level signal and a low-level signal and the fourth detection signal is a low-level signal.