Non-railbound vehicle with an electric motor

A series hybrid vehicle, comprising:

• at least one driving wheel;
• an electric motor drivingly coupled to the at least one driving wheel;
• means for supplying electric current to the electric motor;
• electronic control means for influencing the electric current supply means;
• an internal combustion engine coupled to the electric motor by the electronic control means;
• a generator operatively coupled to the internal combustion engine for generating the electric current as an output with an operating voltage in a medium-voltage range;
• accessory electric consumers;
• and
• vehicle power supply means operative in a low-voltage range for supplying power to the accessory electric consumers, the vehicle power supply means including a battery, the electronic control means including a drive controller which is operative to direct a portion of the generator current output to the vehicle power supply means and is further operative to temporarily interrupt the current fed to the vehicle power supply means when full output of the internal combustion engine and generator is needed to drive the vehicle and temporarily connect the accessory electrical consumers to the battery.