Alerts
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| Signal Name | Description | Condition | Impact |
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The Drive Inverter (DIx) Phase A current sensor is irrational.
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The DIx Phase A current sensor is irrational. An irrational current may indicate a high rate of change or current measurement out of sensing bounds. There may be a condition affecting current input and output.
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If the alert asserts at the beginning of a drive cycle, DIx may not enable. If the alert asserts during a drive cycle, DIx may be disabled. DIx may not function as expected.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase B.
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The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase B. Phase B hardware may need investigation.
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This alert is intended for logging purposes. Phase B hardware may need investigation.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase A.
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The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.
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This alert is intended for logging purposes. Phase A hardware may need investigation.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor Root Mean Squared (RMS) current has exceeded the expected RMS threshold on Phase C.
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The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase C.
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DIx may not function as expected, including vehicle power being limited.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor Root Mean Squared (RMS) current has exceeded the expected RMS threshold on Phase B.
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The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase B.
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DIx may not function as expected, including vehicle power being limited.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor Root Mean Squared (RMS) current has exceeded the expected RMS threshold on Phase A.
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The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase A.
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DIx may not function as expected, including vehicle power being limited.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an overcurrent event (or peak) in Phase C.
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The DIx ECU has detected a peak in Phase C.
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DIx may be inoperable.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an overcurrent event (or peak) in Phase B.
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The DIx ECU has detected a peak in Phase B.
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DIx may be inoperable.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an overcurrent event (or peak) in Phase A.
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The DIx ECU has detected a peak in Phase A.
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DIx may be inoperable.
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The Switch Off Path Test (SOPT) for Drive Unit has failed. The pathway between Drive Inverter (DIx) and Pedal Monitor (PM) torque measurements are different.
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The Switch Off Path Test (SOPT) for Drive Unit has failed. The DIx and PM torque measurements are different. The pathway between DIx and PM may have a condition affecting functionality.
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PM may not be able to shut down torque produced by Drive Unit.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a 5V supply is under voltage.
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The FPGA detects a 5V supply regulator PGOOD is not working as expected.
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Readings from 5V sensors may become erratic.
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Drive Inverter Warning: Battery over voltage detected in hardware.
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HV bus voltage exceeds set upper voltage threshold
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Unable to produce torque/power from drive unit
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery undervoltage event.
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LV supply voltage to DI is disconnected or drops below lower voltage threshold.
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The DI ECU triggers limp mode (see separate limpMode alerts) and cannot produce torque or power.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that leads to the pedal monitor (PM) disabling powertrain.
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The PM detects a condition that requires it to intervene and disable powertrain.
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Vehicle drive torque is immediately disabled.
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The Drive Inverter (DIx) power stage has applied a safe state.
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The DIx power stage has applied a safe state.
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Some DIx features may be disabled, or may not function expected. The Drive Unit may not function as expected.
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The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an error with Active Driveline Damping (ADD).
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The DIx ECU has detected an error with ADD.
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Gear train and drive line thuds and noise typically dampened by ADD may be more noticeable.
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The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a RAM read or embedded conveyor controller (ECC) flash fetch issue.
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The DI ECU detects an uncorrectable flash or RAM error.
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This alert is for diagnostic logging purposes only.
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Drive Inverter Warning: HVIL not CLOSED.
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HVIL is no longer CLOSED
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Contactors may not close
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Drive Inverter Warning: Hardware latched fault response in an unexpected state.
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Measured latched fault response does NOT match with expected request from DI
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In the event of a sudden LV loss at speed, latched fault response may not match expectations, exposing drive unit to unexpected torque
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Drive Inverter Warning: Battery under voltage.
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HV bus voltage (refer to busVoltage) drops below lower voltage threshold (refer to busHighLimit)
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Unable to produce torque/power from drive unit
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