Method for controlling speed of unmanned vehicle in strip mine area

The invention discloses a quadratic planning method for vehicle speed in a strip mine area. The quadratic planning method comprises the following steps: step 1, acquiring vehicle speed Vcurrent of a current driving position of an unmanned vehicle and global planning vehicle speed; step 2, according to the deviation and gradient change trend of the current vehicle speed Vcurrent and the global planning average vehicle speed of the current position, continuously pre-aiming an S1 section and an S2 section with the same distance by taking the current driving of the unmanned vehicle as a starting point, determining a pre-aiming speed Vpreview and a pre-aiming acceleration Apreview at the tail end of the S1, and configuring the pre-aiming acceleration Apreview to the unmanned vehicle; 3, aiming at the downhill road section, revising the preview acceleration Apreview according to the change trend of the global planning vehicle speed of the S1 section and the S2 section; aiming at a front curved road section, revisin