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

Claim 3:
4. The high-voltage interlocking device of claim 3, 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 first short power supply determination condition is met, wherein the first 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, a high-level voltage of the second detection signal is equal to a third reference short power supply voltage, and a low-level voltage of the second detection signal is equal to a fourth reference short power supply voltage;
determine that the open-circuit fault occurs in the high-voltage component under detection, under a condition that a first open-circuit determination condition is met, wherein the first 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, the high-level voltage of the second detection signal is equal to a third reference open-circuit voltage, and the low-level voltage of the second detection signal is equal to a fourth reference open-circuit voltage;
determine that the short-ground fault occurs in the high-voltage component under detection, under a condition that a first short-ground determination condition is met, wherein the first 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, the high-level voltage of the second detection signal is equal to a third reference short-ground voltage, and the low-level voltage of the second detection signal is equal to a fourth reference short-ground voltage.