Liquid Cooling Loop Integration and Dynamic DVFS Throttling in 500W Automotive Central Computers

Abstract: Thermal engineering paradigms for managing 300W-500W heat flux inside vehicle cabins using cold-plate liquid cooling and dynamic DVFS power balancing.

1. Extreme Power Densities in Automotive Supercomputing Central compute SoCs operating at peak autonomous driving loads generate 300 to 500 watts of thermal power. In hot ambient environments (up to 50°C vehicle cabin soak), passive air cooling is insufficient.

2. Liquid Cold-Plate Integration This paper details the integration of vehicle ethylene-glycol cooling loops into sealed HPC chassis. Dynamic Voltage and Frequency Scaling (DVFS) algorithms monitor on-die temperature sensors, preemptively shifting non-critical perception tasks to prevent thermal throttling of ASIL-D vehicle control loops.