Cold weather operation has been a major issue for fuel cell hybrid vehicles (FCHV). To counteract the effects of low temperatures on FCHV operation, an approach for rapid warm-up operation based on concentration overvoltage increase and conversion efficiency decrease by limiting oxygen or hydrogen supply was adopted. In order to suppress increases in exhaust hydrogen concentration due to pumping hydrogen during rapid warm-up, dilution control using bypass air and reduction of concentration overvoltage by a minimum voltage guard were implemented. These approaches effectively control waste heat generation and suppress exhaust hydrogen concentrations during cold start and warm-up. These developments were incorporated into the 2008 Toyota FCHV-adv and it was confirmed that the rapid warm-up operation strategy allowed the FCHV-adv to be successfully and repeatedly started at -30°C.
Development of System Control for Rapid Warm-up Operation of Fuel Cell
Sae Int. J. Alt. Power
SAE 2012 World Congress & Exhibition ; 2012
Sae International Journal of Alternative Powertrains ; 1 , 1 ; 365-373
2012-04-16
9 pages
Aufsatz (Konferenz)
Englisch
Development of System Control for Rapid Warm-up Operation of Fuel Cell
British Library Conference Proceedings | 2012
|The development of warm-up control strategies for a methanol reformer fuel cell vehicle
Kraftfahrwesen | 2000
|Fuel cell operation control method, fuel cell and fuel cell automobile
Europäisches Patentamt | 2023
|OPERATION CONTROL METHOD AND OPERATION CONTROL SYSTEM FOR FUEL CELL VEHICLE
Europäisches Patentamt | 2018
|Water drainage and warm air system for fuel cell vehicle
Europäisches Patentamt | 2021
|