Scope

The overall objective of HDGAS is to provide breakthroughs in LNG vehicle fuel systems, natural gas and dual fuel engine technologies as well as aftertreatment systems. The developed components and technologies will be integrated into three demonstration vehicles that are representative for long haul heavy duty  vehicles in the 40 ton range. The demonstration vehicles will:

• comply with the Euro VI emission regulations;
• meet at minimum 10% CO2 reduction compared to state of the art technology;
• show a range before fueling of at least 800 km on natural gas;
• be competitive in terms of performance, engine life, cost of ownership, safety and comport to 2013 best in class vehicles.

Three HDGAS engine concepts/technology routes will be developed:

• A low pressure direct injection spark ignited engine with a highly efficient EGR system;
• A low pressure port injected dual fuel engine;
• A high pressure gas direct injection diesel pilot ignition gas engine.

HDGAS will develop all key technologies up to TRL6/7.

All gas engine technologies that are currently used on heavy duty natural gas trucks have its individual merits and challenges. Apart from spark ignited engines 2 types of dual fuel Diesel/Gas engines exist for heavy duty trucks. Today, it is therefore impossible to select a single engine technology best suited for long haul trucks. The ambitious target of HDGAS therefore is to further develop key technologies for the main engine concepts to achieve high specific power ratings of > 30kW/L while reducing the CO₂ emission by 10% over the current reference technology at the same time.HDGAS will develop all key technologies (LNG fuel system including High Pressure tank design, compact and insulation in tank, cryogenic pump, aftertreatment systems), and three engines as well as new fuel systems will be integrated into three demonstration vehicles. HDGAS will also prepare a plan for a credible path to deliver the innovations to the market. The exploitation plan will be proportionate to the scale of the project and contains measures to be implemented both during and after the project.