Alerts

When HV bus is up, DI measured bus voltage very low or disagrees with BMS reported voltage

Drive unit enters unit limp mode (see DI_a126_limpMode), faults (Model 3 only)

No

HV bus voltage (refer to busVoltage) drops below lower voltage threshold (refer to busHighLimit)

Unable to produce torque/power from drive unit

No

Drive Inverter clutch engagement retries expired

Drive Inverter clutch may not successfully engage

No

HV bus voltage (refer to busVoltage) exceeds upper voltage theshold (refer to busHighLimit)

Unable to produce torque/power from drive unit

No

Imbalanced phase currents detected. See payload signals for reason of trigger

Drive unit enters unit limp mode (see DI_a126_limpMode)

No

The DIx Phase B 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.

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.

No

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.

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.

No

Drive Inverter temperature (refer payload signals for temperatures) exceeds upper temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too high.

No

The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.

This alert is intended for logging purposes. Phase A hardware may need investigation.

No

The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase C.

DIx may not function as expected, including vehicle power being limited.

No

The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase B.

DIx may not function as expected, including vehicle power being limited.

No

The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase A.

DIx may not function as expected, including vehicle power being limited.

No

The DIx ECU has detected a peak in Phase C.

DIx may be inoperable.

No

The DIx ECU has detected a peak in Phase B.

DIx may be inoperable.

No

The DIx ECU has detected a peak in Phase A.

DIx may be inoperable.

No

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.

PM may not be able to shut down torque produced by Drive Unit.

No

Clutch position sensor is missing or out-of-range

Clutch may disengage

No

The FPGA detects a 5V supply regulator PGOOD is not working as expected.

Readings from 5V sensors may become erratic.

No

HV bus voltage exceeds set upper voltage threshold

Unable to produce torque/power from drive unit

No

LV supply voltage to DI is disconnected or drops below lower voltage threshold.

The DI ECU triggers limp mode (see separate limpMode alerts) and cannot produce torque or power.

No