Patent ID: 7670218

Claim:
A device for controlling one or more operating condition parameters of combine harvester working parts including a threshing device, a separating unit associated with the threshing device, at least one cleaning unit including cleaning parts, and at least one tailings unit for working connection of the at least one cleaning unit with the threshing device, the device for controlling one or more operating condition parameters comprising an evaluating and display unit ( 39 ); at least one sensing device ( 36 , 40 ) for monitoring a crop tailings stream ( 31 ) of the at least one tailings unit, generating tailings stream signals (X, Y), and transmitting the tailings stream signals (X, Y) to the evaluating and display unit ( 39 ); at least one grain loss sensor ( 43 , 44 ) generating at least one grain loss signal (A, R) and transmitting the at least one grain loss signal (A, R) to the evaluating and display unit ( 39 ); and at least one controller ( 53 ) for controlling said one or more operating condition parameters ( 54 ) according to set values of said tailings stream signals (X, Y) and according to the at least one grain loss signal (A, R) in order to optimize said one or more operating condition parameters.