US 12,128,725 B2
Method for setting the lift position of a machine frame of a ground milling machine, which machine frame is connected via lifting means to movement means, and ground milling machine
André Hoffmann, Boppard (DE); Alice Dupont, Boppard (DE); and Rafael Schomaker, Boppard (DE)
Assigned to BOMAG GMBH, Boppard (DE)
Filed by BOMAG GMBH, Boppard (DE)
Filed on Apr. 5, 2022, as Appl. No. 17/657,974.
Claims priority of application No. 10 2021 001 754.4 (DE), filed on Apr. 6, 2021; and application No. 10 2021 118 775.3 (DE), filed on Jul. 20, 2021.
Prior Publication US 2022/0314724 A1, Oct. 6, 2022
Int. Cl. E01C 23/088 (2006.01); B60G 17/015 (2006.01); B60G 17/016 (2006.01); B60G 17/019 (2006.01)
CPC B60G 17/016 (2013.01) [B60G 17/0152 (2013.01); B60G 17/01908 (2013.01); E01C 23/088 (2013.01); B60G 2300/09 (2013.01); B60G 2401/14 (2013.01); B60G 2401/17 (2013.01); B60G 2401/28 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of operating a ground milling machine, comprising a machine frame connected via lifting means to movement means, the method comprising the steps of:
a) detecting and monitoring an actual longitudinal inclination of the machine frame relative to a plumb-line direction with at least one longitudinal inclination sensor and transmitting the actual longitudinal inclination of the machine frame to a control unit;
b) defining a target longitudinal inclination of the machine frame;
c) then, if the actual longitudinal inclination deviates from the target longitudinal inclination, updating a lifting position of the lifting means in a controlled manner by the control unit, such that the actual longitudinal inclination is approximated to the target longitudinal inclination of the machine frame;
d) upon the actual longitudinal inclination being approximated to the target longitudinal inclination, updating a height position of a discharge point of a height-adjustable conveyor belt of the ground milling machine in a controlled manner by the control unit; and
wherein step c) is carried out depending on a limit value, such that a controlled updating is only performed
if a difference limit value between the target longitudinal inclination and the actual longitudinal inclination is exceeded; and/or
time-dependently after a fixed time interval.