SYSTEM AND METHOD OF DETERMINING POSITION OF TOOL FOR INTERACTION WITH SOIL ON BASIS OF FLUID PRESSURE Russian patent published in 2016 - IPC A01C5/06 A01C7/08 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture and can be used in sowing machines. System of agricultural tool contains in one version tool for interaction with soil, designed to engage soil in working position and disengagement with soil in idle position. With tool for interaction with soil drive cylinder is connected, which displaces said tool between its working position and non-operating position on basis of fluid from fluid feed system. Fluid feed system comprises at least one sensor configured to generate signal indicating fluid pressure in this system. Besides, there is a controller configured to determine based on signal, indicative of fluid pressure, whether tool for interaction with soil in working position or in idle position. At that, drive cylinder comprises first side, fed by first pipeline for fluid medium, and second side, fed by second pipeline for fluid medium. Increased fluid pressure to first side causes displacement of tool for interaction with soil in working position, and increasing fluid pressure to second side causes displacement of tool for interaction with soil in idle position. At that, system comprises first sensor, communicated with first pipeline for fluid and configured to generate signal indicating fluid pressure in first side of drive cylinder, and second sensor, communicated with second pipeline for fluid and configured to generate signal indicating fluid pressure in second side of drive cylinder, or their combination. In another version, system of agricultural tool has plurality of said tools and drive cylinders.

EFFECT: invention allows to reduce consumption of product distributed on field, simplified design.

16 cl, 4 dwg