Aiming at problem that traditional vehicle speed and distance control algorithms are difficult to meet the requirements of the competition of National University Students Intelligent Car Race

a velocity and distance double-closed-loop control strategy is proposed

which combines improved fuzzy control algorithm with incremental proportion-integration-differentiation（ PID） algorithm to control the vehicle speed and distance. The experimental results show that the algorithm and the control strategy are very effective on control of the distance between two cars. In premise of assuring achieve double car overtaking task

still can keep appropriate vehicle distance in driving. Adaptability is strong.