Analysis of suitable of traction model for sandy clay loam soils on farm use of tractor

Abstract

A mechatronic-based embedded system was used to measure and display the dynamic wheel axle torque and tractive force of different tractor-implement combinations. It included a special transducer to measure drive wheel torque of a tractor, and an embedded telemetry digital system to receive, process and record the data in SD card module. The observed dynamic wheel axle torque under various tillage operations using different implements were compared with the theoretical values using traction models of Brixius (1987), Wismer and Luth (1973) and Tiwari (2006) to find the model suitable for sandy clay loam soils. The results were compared using the gross traction ratio and motion resistance ratio. Maximum variation of (+ ) 35% was observed between the developed system and the theoretical calculated values using Brixius (1987) and Wismer and Luth (1973) models, while Tiwari (2006) model had maximum variation of (+ ) 14 per cent. Fig. Conceptual Layout for Identification of Best Fit traction Model. • A special transducer is developed to sense the dynamic wheel axle torque of tractor. • An embedded system is developed for signal processing and logging the data. • Systems were validated and compared with the most popular traction models. • Best suitable traction prediction model is presented. • Helps the tillage researchers for analyzing the energy demand of tractor-implement.