The Research Of Loaders Wire Steering System

The loaders’ wire steering system is connected and controlled by electroniccomponents, which is used to replace the traditional mechanical steering system orhydraulic steering system, to record the data of steering, the driver’s steering angle, thevehicle speed, the steering resistance and other data by sensors, and pass these data to thecontroller. The controller calculates these data and output control signals, according to thecontrol algorithm set in the controller, to achieve the control of steering.The principle of the loaders’steering can be described as follows: the sensor which isinstalled on the steering wheel detects the data from the steering wheel, then the sensorpass the data to the ECU and get feedback from the steering control systems. Steeringsystem gets instructions from the steering controller, and gets the information of thesteering wheel condition, directs the movement of the steering system.The device of steering and feedback is the innovation of Loaders’ wire steeringsystem. According to the driver’s steering angle, the speed of the vehicle and some otherinformation, ECU dominates the electro-hydraulic proportional to do the appropriateaction to achieve steering. ECU calculates the appropriate size of the resistance, theresistance data is passed to the road feel feedback device, the feedback devices reactaccordingly.In the loader wire steering system, the steering wheel angle range can be changedaccording to actual working conditions. In the conditions of high speeds, when the steeringwheel continuous rotation in one direction900°from the middle position, the vehiclereaching the left or right full steering position. In the conditions of low speeds, when thesteering wheel continuous rotation in one direction180°from the middle position, thevehicle reaching the right or left full steering position.The electronic control system consists of8051and other electronic devices, which isused to replace the traditional mechanical or hydraulic steering system. Program control various components, to achieve real-time control steering, to adjustable steering ratio androad feel feedback.