US 12,302,790 B2
Cutting unit having sensors for height control
Jochen Scharmann, Warendorf (DE); Raphael Stückmann, Drensteinfurt (DE); Dirk Webermann, Senden (DE); and Steffen Sudhues, Ahlen (DE)
Assigned to Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
Appl. No. 17/761,763
Filed by Carl Geringhoff GmbH & Co. KG, Ahlen (DE)
PCT Filed Sep. 17, 2020, PCT No. PCT/EP2020/076026
§ 371(c)(1), (2) Date Mar. 18, 2022,
PCT Pub. No. WO2021/053099, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10 2019 125 280.6 (DE), filed on Sep. 19, 2019.
Prior Publication US 2022/0369558 A1, Nov. 24, 2022
Int. Cl. A01D 41/14 (2006.01); A01D 41/127 (2006.01)
CPC A01D 41/141 (2013.01) [A01D 41/127 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for height guidance of a cutting unit attached to a height-adjustable intake duct of a harvesting machine, the method comprising:
determining a distance of the cutting unit to the ground by a distance sensor arranged at the cutting unit;
generating, based on the distance determined by the distance sensor, a first sensor value and transmitting the first sensor value to an evaluation device;
measuring a load with which the cutting unit loads the intake duct by a load sensor arranged at the cutting unit;
generating, based on the load measured by the load sensor, a second sensor value and transmitting the second sensor value to the evaluation device;
computing a height control-relevant signal from the first sensor value of the distance sensor and from the second sensor value of the load sensor with a program provided in the evaluation device by a suitable programming of the program and transmitting the height control-relevant signal to an interface configured to transmit the height control-relevant signal to a control or regulating device of the harvesting machine;
averaging in the evaluation device the first sensor value and the second sensor value transmitted within a time interval to the evaluation device.