Papers by Author: Rui Song

Abstract: This paper proposed a novel mechanism for an unmanned electric vehicle with four-wheel independent driving (4WID), independent steering (4WIS), independent suspending and independent braking. This unmanned electric vehicle adopted the technologies of driving by wire, steering by wire and braking by wire. Which improved the maneuverability of the vehicle greatly and made it achieving straight, oblique, lateral movement, zero radius turning and other movement patterns. Detailed implementation mechanism and virtual prototype of the vehicle were given in this paper. The hydraulic circuit schematic diagram and control method of the braking system were given also.

Abstract: Function S-rough sets is defined by employing -function equivalence class. A function is a curve. Function S-rough sets has curve characteristics and dynamic character- istics. By employing function S-rough sets, the concept of image -exterior packet is defined; the theorem of image -exterior packet and the recognization criteria of image -exterior packet are proposed. Function S-rough sets is a new theory and new tools for image processing.