Suppose that I want to use my AutoPi with multiple cars. Is there an appropriate way of unplugging the AutoPi and minimize possible filesystem corruption. I assume that one recommendation is to turn the car engine off prior to disconnecting the unit. Is there any delay to wait before disconnecting it? Do we have to ssh in the Pi and initiate a shutdown command or simply open terminal and do a power.hibernate command?
Having look under the hood, it seems that there is a capacitor on the AutoPi that technically can provide enough time before discharging and allow the AutoPi to shutdown properly in case of power failure (AutoPi disconnected from the ODB connector). If it’s the case then it’s probably the answer to my question.