Intelligent power-assisted luggage case with constant thrust

The invention provides an intelligent power-assisted luggage case. The intelligent power-assisted luggage case comprises a draw-bar handle, a draw-bar middle shaft, an elastomer, a pressure sensor, atelescopic draw-bar, a case body front cover, a case body rear cover, a portable belt, a weighing module, a microprocessor, a three-axis gyroscope, a lithium battery, a BMS system, a USB interface, aleft rear driving wheel, a right rear driving wheel, a rotary power supply interface, a left front general wheel, and a right front general wheel; the horizontal thrust F is detected at the draw-bar handle so as to be used as the feedback, a PID algorithm is used for automatically controlling the speed of a motor, so that the thrust applied by the hand of the people can be stabilized at the set thrust FSET, and the luggage case is an intelligent power-assisted luggage case which can be pushed along any direction no matter how heavy the case and how steep the pavement is, and the thrust F of the case by the people can b