Scania Uses Software to Save Fuel

Scania, the Swedish truck manufacturer, has developed a clever technology for trucks that are ordered with its “Opticruise with Active Prediction” that has the potential to improve fuel efficiency by up to two percent.

Scania, the Swedish truck manufacturer, has developed a clever technology for trucks that are ordered with its “Opticruise with Active Prediction” that has the potential to improve fuel efficiency by up to two percent.

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Called “Eco-roll,” the system uses software to determine which is more fuel efficient when going down a hill: rolling with the transmission in neutral or using engine braking with the fuel shut off.

The calculation is based on factors such as how long the descent will be: If in neutral, then it needs to be at least 10 seconds for usefulness; if using engine braking, the speed shouldn’t be too high because this would negatively affect the fuel energy already in the engine.

The Eco-roll system uses both GPS and topographic maps to make the automatic reckoning of the appropriate fuel-saving strategy.