A fuel-cell-vehicle has been provided with an electric-double-layer-capacitor system (capacitor) to act as a back-up power source. The fuel cells and the capacitor have different voltages when the system is started, and for this reason the system could not be reconnected by relays.A VCU (Voltage and current Control Unit) has been positioned in the path of electrical connection between the fuel cells and the capacitor as a method of dealing with this issue. The VCU enables the charging of the capacitor to be controlled in order to equalize the voltage of the two power sources and allow a connection.
Electric Power Control System for a Fuel Cell Vehicle Employing Electric Double-Layer Capacitor
Sae Technical Papers
SAE 2004 World Congress & Exhibition ; 2004
08.03.2004
Aufsatz (Konferenz)
Englisch
Electric power control system for a fuel cell vehicle employing electric double-layer capacitor
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