Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
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The High Voltage Processor (HVP) detects the shunt thermistor is present when the HVP calibration block has shunt Temperature Coefficients of Resistance (TCRs) for a shunt without a thermistor.
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A shunt thermistor is detected when the shunt TCRs in the HVP calibration block indicate a shunt thermistor should not be present.
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The High Voltage Controller (HVC) will measure the pack current less accurately affecting algorithms such as pack energy estimation. No immediate vehicle functional impact.
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No
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The High Voltage Interlock Loop (HVIL) type in the High Voltage Processor's (HVP) calibration block or firmware file is mismatched with the expected HVIL node count defined in the numberHVILNodes gateway configuration.
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The HVIL type determined by the HVP is mismatched with the numberHVILNodes gateway configuration.
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Contactors will open and may remain open while not in the drive state.
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No
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A Battery Monitoring Board (BMB) device status register error indication has been detected
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Any BMB device in the daisy chain reports any of the monitored error indicators
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May indicate a BMB device hardware issue which could result in unreliable measurement data
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No
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The High Voltage (HV) battery pack voltage significantly differs from the DC Link voltage while the contactors are closed.
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The difference between the HV battery pack and DC Link voltages exceeds the given threshold.
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The HV voltage sense circuit does not operate as expected.
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No
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The High Voltage Processor (HVP) has detected the shunt thermistor sense line is Missing in Action (MIA), indicating it may not be connected to the High Voltage Controller (HVC).
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The HVP has detected the shunt thermistor sense line is MIA, indicating it may not be connected to the HVC. The shunt thermistor may be not in place, missing, or gone bad.
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The shunt thermistor may have a condition affecting functionality. The thermistor may not detect shunt temperature as expected.
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No
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The Fast Charge (FC) contactor is unable to close. This results in the inability to Fast Charge.
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The FC contactor is unable to close.
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The vehicle is unable to fast charge, but AC charging is not impacted.
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No
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The High Voltage Processor (HVP) has detected a pack contactor has entered blocked state.
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The HVP has detected a pack contactor has entered blocked state. The HVP may have timed out trying to close the pack contactor.
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The pack contactors did not close. The High Voltage System may not function as expected.
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No
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Unsupported battery monitoring board (BMB) application-specific integrated circuit (ASIC) configuration.
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The calibration block is configurated for a BMB ASIC type that is not supported.
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The high voltage processor may be unable to obtain battery pack measurements.
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No
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The High Voltage Processor (HVP) hardware circuit board has detected and triggered the pyrotechnic fuse on the battery. The High Voltage (HV) system has been isolated to the battery.
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The HVP hardware circuit board has detected and triggered the pyrotechnic fuse on the battery. The HV system has been isolated to the battery.
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The HVP pyrotechnic fuse has triggered. High voltage has been isolated to the HV battery.
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No
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The High Voltage Processor (HVP) has detected the shunt temperature has exceeded the high threshold value.
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The HVP has detected the shunt temperature has exceeded the high threshold value. There may be a high impedance joint.
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There may be a high impedance joint. After a prolonged time at a high temperature, the properties of the manganin may be impacted.
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No
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The High Voltage Processor (HVP) has detected the DC-link voltage has exceeded the voltage mismatch threshold while closing the pack contactors.
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The HVP has detected the positive and negative DC-link voltage has exceeded the voltage mismatch threshold while closing the pack contactors.
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The HVP will stop closing the pack contactors. The pack contactors will open.
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No
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The High Voltage Processor (HVP) has forced the Fast Charge (FC) contactors open despite the FC contactor state being closed.
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The HVP has forced the FC contactors open despite the FC contactor state being closed. Confirm specific set condition using alert log signal data.
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The HVP opened the FC contactors. The vehicle may not be able to Supercharge or DC charge.
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No
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The High Voltage Processor (HVP) has forced the pack contactors open despite the pack contactor state being closed.
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The HVP has forced the pack contactors open despite the pack contactor state being closed. Confirm specific set condition using alert log signal data.
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The HVP opened the pack contactors. High voltage will be isolated to just the battery.
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No
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The High Voltage Processor (HVP) is blocking the Fast Charge (FC) contactors from closing.
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The HVP is blocking the FC contactors from closing. Confirm specific set condition using alert log signal data.
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The FC contactors are unable to close. The vehicle will not be able to DC charge.
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No
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Alerts if the HV pyro fuse is blown
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One of many critical HVP or BMS alert, log data contains the reason
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HV is disconnected
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No
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Alerts if the HV pyro fuse is blown
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One of many critical HVP or BMS alert, log data contains the reason
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HV is disconnected
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No
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Warns if the HVP detects unintended loss of contactor control (V or I)
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The HVP detects loss of contactor power or coil current
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The contactors opens unintentionally
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No
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Warns if the CP version mismatch
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The CP version mismatch
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HVP cannot trust the CP indication, thus it is not safe to charge
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No
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Warns if the HVP detects unintended loss of contactor control (V or I)
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The HVP detects loss of contactor power or coil current
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The contactors opens unintentionally
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No
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Warns if the HVP detectes both BMS and Shunt MIA while pack contactors closed
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If the HVP detectes both BMS and Shunt MIA while pack contactors closed
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The pyro fuse will blow
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No
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