EcoTIM: Fuel-saving multi-brand tillage with ISO 11783 TIM
Ruben Hefele, Timo Oksanen

TL;DR
EcoTIM introduces a real-time, multi-brand fuel optimization system for tillage operations using ISO 11783 TIM, enhancing efficiency through cooperative tractor-implement communication.
Contribution
It presents a novel, standardized communication extension enabling multi-brand cooperation for fuel-efficient tillage in real time.
Findings
Simulated fuel savings demonstrated across six tillage scenarios.
Proposed extension to ISO 11783 TIM standardizes data exchange.
Enhanced transient response with acceleration command implementation.
Abstract
Tillage operations account for a large share of on-farm diesel consumption, yet the fuel efficiency of the combined tractor-implement system is not optimised in current practice. Modern continuously variable transmission (CVT) tractors minimise engine fuel consumption internally, but they treat the implement as an unknown load and do not account for the effect of vehicle speed on implement draft force. This paper presents EcoTIM, a distributed fuel-optimisation concept in which the tractor and tillage implement cooperate through the extended ISO 11783 (ISOBUS) Tractor Implement Management (TIM) interface to minimise fuel consumption per hectare in real time. In the EcoTIM concept, the tractor Electric Control Unit fuses its internal engine, transmission, and traction efficiencies into a single combined efficiency value and its derivative with respect to vehicle speed, and broadcasts…
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