The new Toyota Mirai hydrogen fuel cell electric vehicle (FCEV) was launched in December 2020. Achieving a low-cost, high-performance FC stack is an important objective in FCEV development. At the same time, it is also necessary to ensure vehicle safety. This paper presents an overview of the safety requirements for onboard FC stacks. It also describes the simulation and evaluation methods for the following matters related to the FC stack. i) Impact force resistance: The FC stack was designed to prevent cell layer slippage due to impact. Constraint force between the cell layers is provided by the frictional force between the cells and an external constraint. A simulation of the behavior of the cell layers under impact force was developed. The impact force resistance was confirmed by an impact loading test. ii) Hydrogen safety: The FC stack was designed so that permeated hydrogen is ventilated and the hydrogen concentration is kept below the standard. In addition, as a fail-safe measure, the stack case is equipped with relief plugs to help prevent hazardous damage even if hydrogen gas is ignited. A hydrogen combustion simulation was developed for the above design. A hydrogen ignition test confirmed that the pressure relief plugs prevent hazardous case scattering.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of Safety Performance for FC Stack in the New Toyota FCEV


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    WCX SAE World Congress Experience ; 2022



    Publication date :

    2022-03-29




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Development of Safety Performance for FC Stack in the New Toyota FCEV

    Enomoto, Kei / Ida, Atsushi / Harada, Takashi et al. | British Library Conference Proceedings | 2022


    Performance Recovery of Fuel Cell Stack for FCEV

    Ahn, Byung Ki / Chun, Dae Kuen / Shin, Hwan Soo et al. | SAE Technical Papers | 2015


    Vacuum-assisted stack activation process for FCEV

    Lee, J. / Shin, H. / Choo, H. et al. | British Library Conference Proceedings | 2014


    FCEV HYDROGEN SUPPLYING VALVE FOR FCEV WITH IMPROVED NOISE PERFORMANCE

    KWON CHOONG HO / JEON FILGEUN | European Patent Office | 2024

    Free access

    Development of Hyundais Tucson FCEV

    Kim,S.H. / Kum,Y.B. / Lee,K.C. et al. | Automotive engineering | 2005