TRACTOR WITH DIFFERENT ENERGY SOURCES

The system has a hybrid unit with a battery pack (5') and an internal combustion engine (23) i.e. diesel engine, and designed as a range extender that generates electrical energy via a generator and delivers the electrical energy optionally to an electromotor (12) and overrun of the battery pack. An apron tractor (1) is provided with a power supply and the electromotor for driving driven wheels (4), and comprises an energy storage (2). Size of the battery pack is same as size of the energy storage, and size of a fuel cell i.e. fuel cell unit (11) is same as size of the energy storage. The electromotor is designed as a wheel hub motor. An independent claim is also included for an apron tractor.