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Development of a Blade Lifting Control Assist System for a Motor Grader
Date
2023-01-01
Author
Öztürk, Ekin Cansu Özkan
Akpınarlı, Ufuk
Varol, İlhan
Ünlüsoy, Yavuz Samim
Schmidt, Klaus Verner
Metadata
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Precise blade control is a central task when automating the operation of motor graders. This paper focuses on the parallel lifting movement using a combination of feedforward and feedback control for controlling the respective lifting cylinders. To this end, the paper first examines the blade mechanism of a motor grader and defines its blade movements. Specifically, the mathematical relationship between the edge points of the blade and the lifting cylinders were obtained using 3D CAD data. Then, the hydraulic behavior of the system was analysed in a test environment with wire encoders that are embedded in the lifting cylinders of the real mechanism. Using the input/output relationship between the ‘Desired Stroke’ and the ‘Actual Stroke’ values in different experiments, system identification was applied and the system transfer functions were obtained. Then, a combination of feedforward and feedback control enables moving to desired positions fast while applying precise blade control.
Subject Keywords
automatic blade function control
,
motor grader
,
system control algorithm
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85172926773&origin=inward
https://hdl.handle.net/11511/105751
DOI
https://doi.org/10.22260/isarc2023/0023
Conference Name
40th International Symposium on Automation and Robotics in Construction, ISARC 2023
Collections
Department of Mechanical Engineering, Conference / Seminar
Citation Formats
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BibTeX
E. C. Ö. Öztürk, U. Akpınarlı, İ. Varol, Y. S. Ünlüsoy, and K. V. Schmidt, “Development of a Blade Lifting Control Assist System for a Motor Grader,” presented at the 40th International Symposium on Automation and Robotics in Construction, ISARC 2023, Chennai, Hindistan, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85172926773&origin=inward.