Description
As a Fuel Cell Electric Vehicle (FCEV) with an electric drivetrain, the Toyota Mirai does not utilize a conventional throttle body to regulate engine power. Instead of managing air for combustion, power control is handled electronically by the Power Control Unit, which governs the flow of electricity from the fuel cell stack and battery to the drive motor. The necessary oxygen for the fuel cell’s chemical reaction is supplied under pressure by a highly efficient, electronically controlled electric air compressor, which takes over the flow regulation function of a traditional throttle in a zero-emission context.
