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In order to meet the development needs of large civil aircraft, this paper takes four-wheel bogie landing gear as example and introduces the muti-wheel braking system control mode and control law. The kinematics of aircraft braking process and the mathematical models of wheels, tyres and runway, hydraulic servo valves, brakes, etc. are analyzed. Yaw movement is introduced on the basis of the original three degrees of freedom movement. The multi-wheel simulation system based on fuzzy control with "I" mode is established. Five common landing states of muti-wheel aircraft are simulated, results show the control parameters are real-time adjust to make full use of runway friction force, the overall braking effect is desirable. Thus it provides an insightful new way of thinking for successful development of multi-wheel bogie aircraft braking system in integrated environment. Keywords-bogie; muti-wheel; Simulation; braking system; slipratio

Muti-wheel Bogie Braking System Simulation of Civil Aircraft