A fuel cell system for a vehicle or other system includes a fuel cell stack, a DC-DC boost converter, and a controller. The stack has a plurality of fuel cells and a stack voltage. The controller regulates the stack voltage during start-up of the fuel cell stack via the boost converter, and is programmed with a plurality of calibrated voltage profiles each having a corresponding magnitude and rate of change. The controller is configured to execute a method which includes detecting an air start of the fuel cell stack in response to a requested start-up of the fuel cell stack. The controller then enforces the stack voltage to the predetermined voltage profiles during an actual start-up of the fuel cell stack, doing so via regulation of the boost converter and using the plurality of calibrated voltage profiles.
FUEL CELL SYSTEM START-UP USING VOLTAGE PROFILE CONTROL
2018-12-06
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
COLD START SYSTEM OF FUEL CELL VEHICLE AND COLD START CONTROL METHOD OF FUEL CELL VEHICLE
European Patent Office | 2025
|Control method for cold start of fuel cell system, fuel cell system and vehicle
European Patent Office | 2022
|