What does CI stand for?

This technique is an enabler to someday allow them to realize Homogeneous Charge Compression Ignition (HCCI).

What if you could create on-board the vehicle a combination of hydrogen and carbon monoxide-also known as "syngas"--that could be used to restore the fuel economy and performance, simplify the aftertreatment systems, and do things like provide the fuel to run a solid-oxide fuel cell APU, stabilize Homogenous Charge Compression Ignition (HCCI) combustion, and regenerate diesel particulate filters more precisely?

GM demonstrated two working concepts of the engine known as the homogeneous charge compression ignition (HCCI) engine.

Since 1991, the Clean Diesel consortium has conducted research in low-emission diesel engines and in ultra-clean homogeneous charge compression ignition technology.

It is called "HCCI," which stands for "Homogeneous Charge Compression Ignition.

Today there is a clear distinction between the spark ignition engines, designed to run on petrol, and compression ignition engines, operating on diesel fuel.

Also in this realm of combining the best of diesel and gasoline engines, VW has taken gasoline direct injection (TSI) and diesel direct injection (TDI) and come up with a third acronym, CCS, which is "Combined Combustion System" as a descriptor for the engine that takes the compression ignition from the diesel and the homogeneous air-fuel mixture of the gas engine.

Possible projects include full operating range homogenous charge compression ignition (HCCI) engine development, dilute diffusion combustion engine development, expansion of the advanced SwRI low temperature combustion technology and integration of cost-effective aftertreatment systems.