Yunnan Province is located in a border area with a relatively high proportion of mountainous areas. Due to the lowefficiency of transportation vehicles，its agricultural economy is greatly affected. In response to the problem that the speed of thetracked chassis is easily affected by environmental interference，this paper constructs a PID closed-loop control system based on an embedded architecture，adds a chassis speed factor，and then uses a slider window to optimize the speed factor and other chassis parameters. Experimental results have shown that compared with traditional measurement methods，the proposed optimization scheme can effectively improve control accuracy，thereby enhancing the transportation efficiency of the vehicle.