Artifact 1 of 4
The requirement becomes a test contract.
The team can review the pass condition and evidence before anyone builds automation around it.
BMS System Requirements v0.3 · Section 5.1.4
Systems engineering · Safety review required before execution
Assert an over-voltage fault and command contactor open when simulated cell voltage exceeds the configured threshold.
At t0, simulated cell voltage crosses 4.25 V. BMS_FAULT_N assertion and the CAN contactor-open command must each be observed within 100 ms of t0. Physical contactor movement is outside this test.
Cell simulator, logic analyzer or DAQ, and CAN interface.
fault_timing_capture.csvcan_fault_log.asc