When the main intelligent driving domain control fails, the vehicle domain control detects the corresponding failure state and then takes over the control of the vehicle, activates the basic visual perception of the vehicle domain control, and combines the radar data for trajectory planning and vehicle control, and brakes the vehicle to a stop. security status.
For the design of the vehicle domain control board, considering its size limit and its own hardware-level failure degradation strategy, the vehicle domain control can be designed as a double-layer board mode (main board and sub-board). The two-layer boards communicate with each other through a certain communication mechanism. When one of the boards fails or has a problem, the other board can be started for information processing. In addition, for the hardware structure design, usually more attention is paid to the heat dissipation design of the entire domain controller. For the heat dissipation of the vehicle domain control, the industry usually adopts air-cooled convection heat dissipation. Usually, the double-layer board of the vehicle domain control adopts a certain heat insulation design, and there is no need to consider the heat dissipation effect of one board on the other board for thermal design. Generally, the vehicle domain controller usually adopts air cooling for heat dissipation. The overall ambient temperature and ventilation will have a greater impact on it.