We added some new features to our existing dual-fuel Triol system. ( Description TRIOL system )
Now Triol supports 24V power, which resulted in possibility to use high-performance CNG injectors and remove 24-12 converter. Max CNG supply is 90nm3/hr.
New symmetrical calibration table 2х20х20х32=25,600 cells with turbopressure, PPS, rpm axis for diesel fuel and CNG. This results in even acceleration and precise thrust control, which is in high demand for powerful high-load engines at off-road vehicles climbing and descending under extreme slippery slopes.
3Calibration field extension lead to more laborious calibration work. But we implemented service functions which make calibration easy and simple. Now you need 5 minutes for calibration only. You need to assign max and min values at calibration axis (turbopressure, RPM, PPS), than assign CNG supply max value, CNG/diesel fuel ratio and that’s all!
Software will propose you default settings also.
Smart speed limitation. At mining and other special regions with heavy-duty vehicle intensive traffic speed limitation is often implemented both because of government regulation and safety reasons. Normally discordant diesel ECU and dual-fuel ECU works results in truck annoying twitch when close to speed limit. Our Triol dual-fuel ECU speed limit is adjusted to decrease CNG supply exactly before diesel ECU starts to do this, so vehicle slowly brakes, it looks like invisible wall prevented to speed up, no any twitches and annoyance.
Smart exhaust gas temperature limitation. You never know all engine loads and regimes possible, heavy-duty off-roads bring unpleasant surprises sometimes. If load is abnormally high during long time, so in order to prevent turbine destruction Triol ECU decrease CNG supply if exhaust gas temperature exceed assigned limit. It is very useful function when truck is stucked.
Possibility to change CNG/diesel ratio according to gear. Normally it is not necessary but mining hardships and extreme supply difference at low and normal gears don’t leave another choice sometimes
Instant snapshot of all engine parameters red by Triol ECU. It is very convenient- just press space button and all variables are saved in special table for further analysis.
PPS emulator automatic calibration, it was quite a piece of work before. Emulation level is analog signal issued by DAC under PWM control. Previously you need to manually issue 32 PWM signals, using multimeter measure and adjust 32 voltage levels in accordance with those 32 PWMs. Now all you left to do is to press corresponding software button and calibration run automatically.