Abstract: A method and system for maintaining stability of a system of a fuel cell vehicle are provided to prevent malfunction of sensors of a low voltage DC-DC converter and the respective controllers. A start timing of a fault diagnosis for the low voltage DC-DC converter and the respective controllers is determined and a deviation between voltages of the sensors of the low voltage DC-DC converter and the respective controllers is detected to determine whether the low voltage DC-DC converter and the respective controllers fail.
Type:
Grant
Filed:
December 3, 2015
Date of Patent:
July 17, 2018
Assignee:
Hyundai Motor Company
Inventors:
Seong Pil Ryu, Sung Suk Ok, Ji Tae Kim, Kyu Il Lee