Aircraft tractor battery capacity display device and capacity control method

The invention discloses an aircraft tractor battery capacity display device which comprises a high-voltage battery. The aircraft tractor battery capacity display device is characterized by comprising a controller, an electricity meter, a display screen and a voltage sensor, the two ends of the high-voltage battery are connected with the electricity meter and the voltage sensor in parallel respectively, the electricity meter and the voltage sensor are connected with the controller, the controller is connected with the display screen through a CAN bus so that battery residual capacity can be easily displayed on the display screen through the CAN bus, light-emitting diodes are arranged in the electricity meter so that battery residual capacity can be easily judged and displayed according to the serial number of the turned-on light-emitting diode, an operator conveniently controls the performance of a whole tractor in real time, and the tractor and airport equipment are prevented from damage. By means of the structure and a control method, the aircraft tractor battery capacity display device has the advantages of being novel in structure, capable of allowing capacity to be conveniently observed, capable of controlling capacity conveniently, stable in whole tractor performance and the like.