Insulation resistance value control method and device of fuel cell vehicle, vehicle and medium

• Main Authors: XIAO LONG, YOU YIFU, TANG ZHIPING, RAN HONGXU
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to the technical field of fuel cell automobiles, in particular to an insulation resistance value control method and device of a fuel cell automobile, a vehicle and a medium, and the method comprises the following steps: detecting the actual conductivity of a hydrothermal management loop; calculating an insulation resistance value of the fuel cell system according to the actual conductivity, and judging whether the insulation resistance value is smaller than a preset resistance value corresponding to the current working state of the fuel cell automobile; if the insulation resistance value is smaller than the preset resistance value corresponding to the current working state, the deionization assembly is controlled to work according to a control strategy corresponding to the current working state, and the deionization assembly is controlled to stop working until the insulation resistance value is larger than or equal to the preset resistance value corresponding to the current working state