TechnicianVision · Knowledge base
Powertrain Overview: Hydrogen Fuel Cell Vehicles
I-CAR · May 9, 2019
Summary
This article provides an overview of hydrogen fuel cell electric vehicle (EV) powertrains, explaining how electricity is generated through a chemical reaction between hydrogen and oxygen. It highlights critical safety hazards associated with these vehicles, including the extreme flammability of hydrogen and the presence of high-voltage battery systems.
What to do on the job
Consult the vehicle-specific service information to properly disable the high-voltage battery, drain the hydrogen tank if required, and ensure all protective tank shields are correctly reinstalled.
How to use it
Use this document to justify the labor and safety precautions required when working on hydrogen fuel cell vehicles. This includes billing for high-voltage disabling/enabling procedures, disconnecting and isolating the 12V battery prior to welding, adhering to strict paint booth baking temperature limits, and carefully reinstalling protective tank shielding.
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