Method for determining the insulation quality of a cryogenic pressure vessel and motor vehicle with a cryogenic pressure vessel

摘要

The technology disclosed herein relates to a method for determining the isolation quality of a cryogenic pressure vessel 100, comprising the steps of: determining the rate of change over time of the density ρ of a fluid F stored in an inner vessel 110 of the cryogenic pressure vessel 100; and determining the rate of change with time of the amount of heat Q stored in the inner container 110 when the rate of change of the density ρ of the fluid F is less than a threshold rh. o is.