Variable Universe Fuzzy Control of Vehicle Cruise Control System Based on FSM Theory

Abstract

A vehicle Cruise Control System(CCS) was designed based on Finite State Machine(FSM) theory and variable universe fuzzy logical theory. The system can control throttle angle and brake pressure coordinately by modeling vehicle powertrain. The simulation results show that vehicle under the proposed system controlled can be drived along the state switch curve, so as to make the vehicle follow the desired acceleration command accurately. And this control system provides satisfactory tracking performances and suitability insinuations such as traction, vehicle tracking and braking.