Correlation between Cutting Load and Crop Amount in Combine for Multi - Crops^＊＊

—Consideration Based on the Power Consumption of the Quasi-Static Electric Cutting Knife Mechanism—

Abstract

Owing to the expansion of target crops of multi-cropping, problems arise in work accuracy; and improvement in versatility can be done by making each work part electric and tweakable. We aimed to build a more optimal control system by detecting the crop amounts in the cutting section and using them as feedback for the control parameters. We created an extremely low-speed reciprocating electric knife. The cutting load was determined based on the feedback system and the power consumption waveform showing the correlation between the cutting load and the crop information under quasi-static conditions. As a result, four parameters were extracted based on the correlation between power consumption and cutting force and the results are discussed.