Power Mode Vehicles typically have multiple power modes and wake states. Vehicles with traditional keys usually have four positions on the ignition switch, transitioning to 4-6 power modes, from off and lock to start (as shown in Figure 7), as far as the wake-up source is concerned, there is a plug-in charge wake-up , key wake-up, open door wake-up, remote wake-up, diagnostic wake-up, etc. For the electronic and electrical architecture design, it is necessary to consider which controllers should be woken up in the case of different power modes or wake-up sources. This should be the principle of minimization.