Fundamental Studies on Exhaust Gas Evaluation Techniques forAgricultural Tractors Engaged in Rotary Tillage Work (Part 4) ——Exhaust Gas Evaluation Method——

Abstract

We studied methods of evaluating tractor exhaust gas while engaged in rotary tillage, a common agricultural task in Japan. In this report, we looked at the loading position of engine torque. We applied our exhaust gas evaluation method in relation to loading method by sorting and applying the system torque components in stepwise fashion. Using this method, the quantity of emitted gases was elucidated for every operating range of the engine, making it possible to express emissions as a function of operation range, together with fuel consumption. We are also measuring and accumulating a mass of engine torque and the gases emitted during various types of work that may be of use for evaluating agricultural machinery in general.