Range extension system

A range extension system, comprising:

• a range extension assembly having a first fuel input portion and a second fuel input portion, wherein the first fuel input portion is configured to receive a first fuel source, the second fuel input portion is configured to receive a second fuel source different from the first fuel source, and the second fuel source and the first fuel source are reacted with each other in the range extension assembly to generate an electrical output;
• a fuel supply unit including gas storage cylinder or a blower, configured to provide the first fuel source to the first fuel input portion;
• a second fuel storage device including gas storage cylinder, wherein the second fuel storage device is configured to store and provide the second fuel source to the second fuel input portion;
• and
• a second fuel source control device is connected to the second fuel storage device, wherein the second fuel source control device comprises:
• a third action unit including a foot pedal, having a third input end and a third output end, wherein the third action unit is communicated with the second fuel storage device via the third input end to receive the second fuel source;
• and
• a fourth action unit including a separation valve, detachably connected to the third action unit and actuated by the third action unit, wherein the fourth action unit has a fourth input end and a fourth output end, and the fourth action unit is communicated with the second fuel storage device via the fourth input end to receive the second fuel source;
• wherein in the second fuel source control device, when the third action unit is actuated by a second action force, the third action unit generates a second action stroke, and in a case that the second action stroke is less than a second threshold value, the second action force drives the third action unit, so that the second fuel input portion receives the second fuel source from the second fuel source control device via the third output end;
• and in a case that the second action stroke is greater than or equal to the second threshold value, the second action force drives the third action unit to connect and propel the fourth action unit, so that the second fuel input portion receives the second fuel source from the second fuel source control device via the third output end and the fourth output end.