254-261A microcontroller-based Automatic Slip Control System (ASCS) and Automatic Draft Control System (ADCS) for 2WD
tractors was devised to automatically alter the depth of operation to keep the wheel slip and implement draft within a prespecified
range. An electro hydraulic lift link system was devised to control the depth of the implement's operation. The
technology continuously checks wheel slip and draft in the field and notifies the hydraulic system, which changes the
implement's depth if the wheel slip and draft exceeds the specified range. Experiments were conducted with defined slip
ranges of 10–15, 15–20, and 20–25% for ploughing and cultivating activities. Field capacity and drawbar specific fuel
consumption were measured as performance criteria. With the ASCS, the slip was found to range from 15–24%, versus the
desired range of 15–20%, while with the current draft control system, it was found to range from 12–48% Tractor Draft
Control System (TDCS). Fuel consumption was determined to be 20.13, 21.11, and 22.98 l/ha for ploughing operations with
TDCS at initial depth settings of 150, 180, and 220 mm, respectively. However, ASCS resulted in a significant increase in
fuel efficiency, with an 11.2% reduction in consumption. When compared to the TDCS, it consumed 4 to 14% less fuel
during ploughing operations. Field capacity was increased by 3.4–14.5% due to ASCS and ADCS. The measuring efficiency
of the devised system was determined to be greater than 99%