Abstract
In this paper, a set of electronically controlled hydraulic steering system was designed for heavy multi-axle vehicles for its serious wearing of tires during steering. This system could control the steering angle of each wheel to meet the Akaman principle in all-wheel steering situations to decrease the wearing of tires; A set of fuzzy control algorithm was designed to control the steering angle of each wheel according to the vehicle speed and the torque on the steering wheel so as to make it steer light at low speed steering or sharp turning, and has good steering stability at high speed when steering. Improved driving performance.
Keywords: Multi-axle steering;Electrical and hydraulic assistance;Fuzzy control;
Trapezoidal mechanism