Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
One or more fast charge (FC) or pack contactors in the high voltage battery failed to open when requested
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The contactor(s) do not open when requested to open immediately
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Pyro fuse will blow, which will cut off all high voltage (including charging)
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No
|
|
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Incorrect or Missing configuration block programmed
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The HVP config block may be missing, incorrect, or unsupported
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The HVP is unable to initialize configuration parameters
|
No
|
|
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Warn if pack contactors are not allowed to close
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This meta alert will set if any of the reasons for preventing contactors to close (listed in this alert payload) are still present. This alert is always set with an accompanying alert that provides more specific information for the fault.
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While this alert is set, HV contactors will not be able to close. This will prevent drive, charge and 12V support and eventually the 12V battery will be fully discharged and the vehicle will go offline.
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No
|
|
|
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
|
No
|
|
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Positive contactor opened unexpectedly due to insufficient coil drive current.
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Contactor state exited ECONOMIZED because coil current was too low.
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Vehicle will stop charging.
|
No
|
|
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HVBATT detects that any module in the battery pack cannot measure temperature properly.
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A battery monitoring board (BMB) detects that all of the thermistors on a module are BAD or SNA.
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Inability to charge, drive, or support the low voltage (LV) system.
|
No
|
|
|
HVBATT cannot measure the temperature on any module in the battery pack.
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All temperature sensors in the battery pack are reporting faulty measurement readings.
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Inability to charge, drive, or support the low voltage (LV) system.
|
No
|
|
|
The battery management system (BMS) detects that one or more temperature measurements are irrational.
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A thermistor reports a temperature that the BMS considers irrational.
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This alert is primarily informational.
|
No
|
|
|
Negative contactor is expected to be open but HV current is still present. Possible weld detected.
|
Contactor state timed out of OPENING (and transitioned to AUX_MISMATCH) due to HV current not being low enough to open contactors.
|
The pyro fuse may be deployed.
|
No
|
|
|
Positive contactor is expected to be open but HV current is still present. Possible weld detected.
|
Contactor state timed out of OPENING (and transitioned to AUX_MISMATCH) due to HV current not being low enough to open contactors.
|
The pyro fuse may be deployed.
|
No
|
|
|
Negative contactor is expected to be open but the voltage match remains. Possible weld detected.
|
Contactor state timed out of OPENING (and transitioned to AUX_MISMATCH) due to a weld not having been disqualified.
|
The pyro fuse may be deployed.
|
No
|
|
|
Positive contactor is expected to be open but the voltage match remains. Possible weld detected.
|
Contactor state timed out of OPENING (and transitioned to AUX_MISMATCH) due to a weld not having been disqualified.
|
The pyro fuse may be deployed.
|
No
|
|
|
Negative contactor is expected to be open but aux reports them as still closed.
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Contactor state timed out of the OPENING state (and transitioned to AUX_MISMATCH) due to aux reporting the contactor as still closed.
|
Firmware will try to open the contactor again.
|
No
|
|
|
Positive contactor is expected to be open but aux reports them as still closed.
|
Contactor state timed out of the OPENING state (and transitioned to AUX_MISMATCH) due to aux reporting the contactor as still closed.
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Firmware will try to open the contactor again.
|
No
|
|
|
Negative contactor was blocked from opening due to high current. Pyro deployed instead.
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High voltage current is too high while attempting to open the contactor.
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The negative pyro fuse will be deployed.
|
No
|
|
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Positive contactor was blocked from opening due to high current. Pyro deployed instead.
|
High voltage current is too high while attempting to open the contactor.
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The positive pyro fuse will be deployed.
|
No
|
|
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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
|
Vehicle will be unable to restart
|
No
|
|
|
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
|
No
|
|
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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
|
No
|
|
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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
|
No
|