Alerts
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| Signal Name | Description | Condition | Impact |
|---|---|---|---|
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Cartridge maintenance prediction alert - overworn cartridge.
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Possible moisture in air system
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Cartridge maintenance prediction alert - worn cartridge.
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-
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Did not try to close positive contactor because a voltage match was not achieved.
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Contactor state is OPEN and the PULLED_IN state has been blocked for more than 10s because a required HV voltage match has not been achieved.
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Positive FC contactor will remain open.
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High voltage isolation dropped under threshold in many drive sessions.
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Isolation or isolation degradation alert is set many times
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Vehicle will be unable to restart
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The BMS has detected isolation failure conditions in several drive sessions.
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Isolation or isolation degradation alert is set in several drive sessions
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Vehicle may be unable to restart
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The battery management system (BMS) detects that the high voltage (HV) isolation contactor closed below the warning threshold.
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The BMS detects that the HV isolation was below the warning threshold when pack contactors closed.
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This alert indicates that HV isolation is low, but above the sufficient level for vehicle operation.
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The battery management system (BMS) detects that high voltage (HV) isolation is too low while pack contactors are closed.
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The BMS has detects that HV isolation is below the warning threshold while contactors are closed.
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Inability to charge, drive, or support the low voltage (LV) system
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The Range Extender Battery Management System (BMS) or High Voltage Controller (HVCON) detects the pyro was deployed by the passive pyro circuit.
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The passive pyro circuit deploys the pyro.
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The High Voltage (HV) pack may be blocked, which will prevent the vehicle from driving or charging.
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The Range Extender Battery Management System (BMS) or High Voltage Controller (HVCON) detects the pyro was deployed by vehicle firmware.
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The pyro was deployed by vehicle firmware.
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The High Voltage (HV) pack may be blocked, which will prevent the vehicle from driving or charging.
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The Range Extender Battery Management System (BMS) or High Voltage Controller (HVCON) detects there was an attempt to deploy the pyro, but the attempt was unsuccessful.
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Vehicle firmware could not successfully trigger a pyro deployment, or there was an attempt to deploy the pyro while the deployment test was actively running on the pyro.
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The vehicle may be unable to drive or charge.
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A battery pack module temperature is above the fault temperature limit.
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A battery pack module temperature is above the fault temperature limit for X duration (in seconds)
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Power/drive limits may be reduced
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A battery pack module temperature is above the warning temperature limit.
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A battery pack module temperature is above the warning temperature limit for X duration (in seconds)
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Power/drive limits may be reduced
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A battery pack brick voltage is below the open circuit voltage (OCV) undervoltage limit at rest.
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A battery pack brick voltage is below the under voltage OCV limit for X duration (in seconds) while contactors are open.
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Drive may be blocked.
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A battery pack brick voltage is below the under voltage fault limit.
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A battery pack brick voltage is below the under voltage fault limit for X duration (in seconds)
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Inability to enter drive or support the low voltage (LV) system
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A battery pack brick voltage is below the over discharged voltage limit.
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A battery pack brick voltage is below the over discharged voltage limit for X duration (in seconds)
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The vehicle may not drive.
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A battery pack brick voltage is above the fault voltage limit.
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A battery pack brick voltage is above the fault voltage limit for X duration (in seconds)
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The vehicle may not drive or charge.
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Indicates a Battery Monitoring Board (BMB) reference voltage has continuously been out of bounds.
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Any BMB reference voltage has continuously deviated outside the in-bounds threshold of the nominal voltage
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Other BMB voltage signals will be substituted given the reference voltage is unreliable
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Indicates valid data is missing for one or more stack voltages.
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One or more stack voltages are continuously detected as invalid
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Stack voltage data is likely being substituted to replace invalid readings
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Indicates valid data is missing for one or more brick voltages.
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One or more brick voltages are continuously detected as invalid
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Brick voltage data is likely being substituted to replace invalid readings
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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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