| Machine | Dieci Agri Farmer 30.7 (telehandler) |
|---|---|
| ECU | Denso (engine) + ACM (after-treatment control module) |
| Solution | AdBlue/SCR off* + DPF off* + EGR off* |
The situation
A farm telehandler rarely runs long at steady load. It moves bales, feed and pallets in short cycles, idles between jobs and starts cold many times a day. That duty profile is hard on a modern after-treatment system with DPF, EGR and SCR: the filter does not get hot enough to clean itself, regenerations interrupt the work and the system reacts to faults with warnings or derate.
On this machine the after-treatment is not managed by the engine ECU alone. A separate after-treatment control module (ACM) works together with the Denso engine ECU – a solution has to cover both controllers.
What we did
Both controllers were read and the files developed for their software versions and matched to each other, so that engine ECU and ACM do not report faults to one another.
- AdBlue/SCR: dosing and level monitoring deactivated in software, related DTCs and the derate strategy handled.
- DPF: regeneration logic disabled, back-pressure model and sensors neutralised.
- EGR: valve closed in software – clean intake, no recirculated soot, stable combustion temperatures.
Checksums corrected and both files written back.
The result
A telehandler without regeneration stops, AdBlue warnings or derate in the middle of a job. For the farm this means a machine that is ready every morning and fewer workshop visits for faults in the after-treatment. Two-controller layouts like Denso plus ACM are developed from the original read of both units – the software versions decide what the files look like.
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* Emission-related solutions (DPF, EGR, AdBlue/SCR) are intended for off-road, agricultural, export and motorsport use only, where permitted by local law. The operator is responsible for legal use in their market.
