US 12,442,141 B2
Method and device for controlling/regulating a rotatory drive of a working unit of a track maintenance machine
Markus Quittner, Linz (AT); Harald Daxberger, Linz (AT); and Reinhard Boeck, Aschach an der Donau (AT)
Assigned to Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H., Vienna (AT)
Appl. No. 17/613,590
Filed by Plasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H., Vienna (AT)
PCT Filed Apr. 23, 2020, PCT No. PCT/EP2020/061269
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/233933, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. A 193/2019 (AT), filed on May 23, 2019.
Prior Publication US 2022/0235521 A1, Jul. 28, 2022
Int. Cl. E01B 35/00 (2006.01); G01H 3/04 (2006.01); G01H 3/06 (2006.01); G05B 19/042 (2006.01); E01B 27/16 (2006.01)
CPC E01B 35/00 (2013.01) [G01H 3/04 (2013.01); G01H 3/06 (2013.01); G05B 19/042 (2013.01); E01B 27/16 (2013.01); G05B 2219/24001 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for controlling/regulating a rotatory drive of a working unit of a track maintenance machine, the method comprising:
using a sensor to record a measurement parameter with an approximately periodic history function derived from a rotation of the drive;
determining a frequency or a period duration of the history function by using an evaluation device by
forming a number of time-discrete measurement values for the measurement parameter, and
carrying out an auto-correlation of the measurement values by using a calculation unit for determining the frequency or the period duration; and
comparing the frequency or the period duration with a target parameter for stipulating a control signal for controlling the rotary drive using a controller.