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title2023/11/14 Vehicle Fault States - Non Battery

Vehicle Fault States - Non Battery

Pedal

Fault

Condition

Action

Stuck Pedal

Can’t detectNo way to detect it

N/A

Lose communication in pedal CAN node

No pedal data

Set throttle to 0 upon missed transmission

MCI

Fault

Condition

Action

CAN Fault

Error status from WS22

Error indication on console, immediately auto-clear

Maybe limit torque for overcurrent

Steering

  • No detectible errors

Power Distribution

Fault

Condition

Action

OCPOutput over current

Isc reading at full scale

  • Disable load switch

If BMS fault

  • BPS Fault

Else

  • Display error code if possible (if not CC fault), pull over if needed

Aux Fault

AUX Valid GPIO low

  • Error code, pull over

DCDC Fault

DCDC Valid GPIO low PA15 or PB5

  • Error code pull over, leave everything on

    • Not allowed to drive on AUX

Aux low

AUX ADC voltage low PB3 or PB4

  • Indicator light turns on

    • Might need to add

  • Make determination on where to stop

AUX/DCDC Overcurrent

Current greater than x value (can be 8A for now)

  • Indicate, pull over/manually turn off car

AUX/DCDC Overtemp

Temp greater than 60C (can change)

  • Indicate, pull over/manually turn off car

AUX not valid on startup

AUX Valid GPIO low on startup

  • Will never get detected, car won’t turn on

DCDC Fault signal

Signal high from DCDC PA6

  • Nothing, display warning light

Solar Sense

Fault

Condition

Action

No current

No current in one or more strings when relay closed

  • Display error code

Dead

No response over CAN

  • Display error code

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