Device and method for detecting the coolant level in a thermal management system for a fuel cell vehicle

摘要

An apparatus and method for detecting the coolant level in a thermal management system for a fuel cell vehicle are disclosed which can accurately and quickly detect the coolant shortage using a detection value of a pressure sensor. That is, the present invention provides an apparatus and a method for detecting the coolant level in a thermal management system for a fuel cell vehicle, which detects the lack of coolant by calculating in real time the coolant shortage based on a change in the slope value and a change in the amplitude of a detection value of a pressure sensor according to can accurately and quickly monitor the coolant flow while the pressure sensor is mounted in a coolant pipe connected to an inlet of a fuel cell stack, and a tank is connected to a pressure lock of a radiator.