Patent ID: 9538701
Date: 2017-01-10
CPC Classifications: A01C,E01H

Claim:
1. A method for controlling at least one device for changing the spreading ring sector of a disc spreader which comprises at least one controllable metering device, at least one distributor disc which is arranged underneath the metering device and is provided with thrower blades, and the at least one device for changing the spreading ring sector of the granular material on the ground, the method comprising: storing functional dependencies of at least one setting parameter of the device for changing the spreading ring sector on at least one throwing parameter in a database of a control unit which is assigned to the device for adjusting the spreading ring sector; providing a set point value of the throwing parameter and/or of the setting parameter corresponding thereto as input in the control unit; determining at least one actual value of the throwing parameter using at least one sensor which is arranged near a circumference of the distributor disc; comparing the actual value, which is determined using the sensor, of the throwing parameter with the set point value thereof in the control unit; and readjusting the setting parameter of the device for changing the spreading ring sector if the actual value of the throwing parameter deviates from the set point value by more than a predetermined maximum value such that the throwing parameter which corresponds thereto deviates from the set point value thereof by less than the maximum value, wherein the functional dependencies, stored in the database, of the at least one setting parameter on the at least one throwing parameter take into account a type of the respective distributor disc and/or the thrower blades thereof, wherein one of the type of the respective distributor disc and/or the thrower blades thereof is provided as input in an input device of the control unit, the type of the respective distributor disc and/or the thrower blades thereof is detected by the sensor and the type of the respective distributor disc and/or the thrower blades thereof is detected by means of an RFID transponder of the respective distributor disc and/or the thrower blades thereof.