Alerts
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
PCS DCDC detects 12V bus voltage is higher than the safety threshold to continue its operation
|
DCDC converter detects that low voltage bus voltage exceeds overvoltage threshold
|
Inability to precharge HV bus, inability to support 12V system, inability to drive
|
No
|
|
|
The onboard charger fails to keep the intermediate bus, an internal component involved in AC/DC conversion, at the required voltage. AC charge rate will be reduced, or AC charging may be unavailable.
|
The onboard charger intermediate bus voltage is below minimum required voltage threshold.
|
Reduced AC charge rate or inability to AC charge.
|
No
|
|
|
The Power Conversion System (PCS) electronic control unit (ECU) detects the DCDC converter reaches the maximum output power based on the hardware capability.
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The PCS ECU detects the DCDC converter reaches the maximum output power for more than 3 seconds.
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The low voltage (LV) battery may not charge properly, and the LV bus may begin loadshedding.
|
No
|
|
|
PCS charging input over-frequency
|
Charger AC input frequency exceeds maximum frequency threshold for more than one second
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
PCS charging input under-frequency
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Charger AC input frequency is below minimum frequency threshold for more than one second
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
PCS charging input RMS over-voltage
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Charger RMS AC input voltage exceeds overvoltage threshold
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
PCS charging input peak over-voltage
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Charger peak AC input voltage exceeds overvoltage threshold
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
High DC offset present on charger input voltage sensor when voltage is not expected
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Charger line voltage sensor DC offset exceeds threshold for more than five seconds
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
Charger output voltage sensor mismatches high voltage processor's sensed value on CAN
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Charger output voltage sensor mismatches high voltage processor's sensed value on CAN for more than three seconds
|
Inability to AC charge
|
No
|
|
|
Charger's input voltage sensor cannot lock the AC input waveform when commanded to start AC charging
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Charger's input voltage sensor cannot lock the AC input waveform when commanded to start AC charging
|
Reduced AC charge rate or inability to AC charge
|
No
|
|
|
The onboard charger AC input current measurement changed too much between switching cycles compared to acceptable range, causing reduced AC charge rate. This alert indicates an unexpected, sudden drop or spike in the measured current has occurred, and it is frequently associated with a condition affecting the supply current from the AC grid.
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The onboard charger AC input current changed too much between switching cycles compared to acceptable range.
|
Reduced AC charge rate.
|
No
|
|
|
The onboard charger input voltage measurement changed too much between switching cycles compared to acceptable range, causing reduced AC charge rate. This alert indicates an unexpected and sudden drop or spike in the measured voltage has occurred, and it is frequently associated with a condition affecting the supply voltage from the AC grid.
|
The onboard charger AC input voltage changed too much between switching cycles compared to acceptable range.
|
Reduced AC charge rate.
|
No
|
|
|
The onboard charger detects the accumulated difference between estimated current and measured current is too large, reducing AC charge rate or making AC charging unavailable.
|
The onboard charger detects the accumulated difference between estimated current and measured current is too large / outside acceptable range.
|
Reduced AC charge rate or inability to AC charge.
|
No
|
|
|
The onboard charger detects a large voltage drop over time compared to initial voltage when charging commenced. AC charge rate is reduced. This alert is frequently associated with the condition of wiring or electrical power grids external to the vehicle.
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The onboard charger detects greater than 12% input voltage drop compared to initial voltage when charging commenced.
|
Reduced AC charge rate.
|
No
|
|
|
PCS DCDC detects pack voltage is higher than the safety threshold to continue its operation
|
DCDC converter detects that high voltage bus voltage exceeds overvoltage threshold
|
Inability to precharge HV bus, inability to support 12V system, inability to drive
|
No
|
|
|
PCS DCDC detects pack voltage is lower than the safety threshold to continue its 12V support operation
|
DCDC converter detects that high voltage bus voltage is below undervoltage threshold
|
Inability to precharge HV bus, inability to support 12V system, inability to drive
|
No
|
|
|
PCS CAN receiver encounters error while receiveing message
|
Power conversion system CAN receiver encounters error while receiveing message
|
Inability to AC charge, inability to precharge HV bus, inability to support 12V system, inability to drive
|
No
|
|
|
Charger is unable to meet BMS's requested power
|
Charger is unable to meet BMS's requested power within 1kW for more than thirty seconds
|
Reduced AC charge rate
|
No
|
|
|
PCS output under-voltage detected while being commanded to charge
|
Charger DC output voltage is below minimum output voltage threshold
|
Inability to AC charge
|
No
|
|
|
PCS does not detect coolant flowing
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Charger detects that coolant flow is insufficient
|
Inability to AC charge
|
No
|