In recent years, the agricultural mechanization has been focused on the labor reduction in transportation and the vehicle automation such as tractor and combine. The author wishes to introduce some of the current research works on the development and automation of farm use vehicle, which he conducted. They are: 1) The development of farm use vehicle with hydraulic articulated steering, 2) Study on the automation of self propelled combine, 3) Slip-draft control of tractor.
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