Is HCCI the engine of the future? on Driving the Nation

Is HCCI the engine of the future? on Driving the Nation

For years I’ve been hearing about homogeneous charge compression ignition (HCCI) in gasoline engines, but no action had been taken. Recently at a Bosch event, in the left bottom corner of a gasoline display was the HCCI emblem. Is HCCI still an option for the future?

Hakan Yilmaz, Bosch’s Global Technology Management, Gasoline Systems, explained to Lou Ann Hammond, CEO,, that gasoline is the prevalent fuel source for as long as we can see. HCCI is an advanced combustion that gives the gasoline engine the fuel efficiency of a diesel engine.

The target for HCCI is to improve fuel efficiency by 25 percent, decrease emissions to SULEV, and make HCCI a commercially viable system. Is Bosch close to meeting these goals?

Since HCCI demands very precise controls of injection. Which engines will this system work on?

If you include HCCI in those engines, what would the outcome be? If you use HCCI with certain gasoline engines will they surpass diesel engines in fuel efficiency?

How close are we to seeing HCCI engines in demo versions?

About the Author:

L ou Ann Hammond has a work history in the energy and transportation field. Starting with Chevron Corp. in finance and accounting from 1978 to 1986. Hammond was exposed to the accounting, selling, management, and transportation of petroleum and all the alternative energies Chevron explored for during the turbulent 1970s. Hammond is the founder and owner of the first privately owned automobile website Carlist is the longest running used car database, since 1986, even prior to the Internet. Hammond's most recent website,, covers a broader range of subjects than solely the automotive or the energy industry. Driving the Nation encompasses both automotive and energy issues to show the audience how dependent we are on both. Hammond's varied background in the petroleum and automotive industry gives her an analyst insight into the myriad levels of automobile and energy topics.