Consumption determination for a fuel cell automobile

摘要

The vehicle has an electric drive motor (1). The required current is determined by a driven fuel cell system (4). This is then fed directly to the motor. The fuel cell current is measured. From this, the amount of fuel fed to it per unit time is determined. The vehicle speed may also be measured. From this the fuel consumption per unit distance can be determined. The fuel cell voltage may also be measured. From this, the power may be determined. The derived consumption values may be displayed to the driver using a display instrument (10).