When the air duct of the vehicle controller is designed to face one side, and if the installation location is located in a relatively closed environment, and the side of the air outlet is closer to the closed boundary, then it is likely that the hot air output by the controller will be blocked from bouncing back. In this way, the hot air that bounces back will re-enter the air inlet, so it is impossible to achieve good heat dissipation.
Therefore, in the heat dissipation design, it is necessary to consider the installation position (the installation position not only considers the ventilation, but also needs to consider whether the air outlet has enough air duct distance to fully contact more cold air to cool down), the air duct design, and the overall size of the controller. , Function degradation (The system engineer sets the degraded temperature threshold according to the needs, and when it exceeds a certain value, the full function is degraded to a partial function. For example, according to the maximum operating temperature of the environment is 85°, then when it exceeds 80°, the control function will be degraded to Only storage function) and other aspects are considered comprehensively. If the temperature specification is reduced, the size of the whole machine can be further reduced (calculated according to Boltzmann’s law). In terms of software, dynamic temperature-power consumption control measures can also be added.