[The Gonz]

In the quest for ever improving fuel efficiency and emissions reduction, an old and very promising idea has found new life. HCCI (Homogeneous Charge Compression Ignition) technology has been around for a long time, but has recently received renewed attention and enthusiasm. While the early years saw many insurmountable (at the time) obstacles whose answers would only come as sophisticated computer controlled electronics were developed and matured into reliable technologies, progress stalled. Time has, as it always does, worked its magic and nearly every problem has been solved. HCCI is an idea whose time has come with nearly all of the parts and pieces of technology and know-how in place to make a real go of it.

How Homogeneous Charge Compression Ignition Works

[Shambles]

Fascinating..

Just needs a few years of monitoring...

What's not-so-certain yet is the ability of these engines to deliver these characteristics inexpensively, and, probably more importantly, reliably over the life of the vehicle.

[The Gonz]

And yet Mazda is committing to it next year ...

Report: Mazda to launch HCCI engine in 2018

[Shambles]

I sure won't be an early adopter

[The Gonz]

  There's leading edge and then there's bleeding edge!

[Phil №❶]

Shambles


Y

[mickd]

Hmmm, 15% improvement.
Time will tell as it has with VVTI , elec cars and bikes, but a lot of work and initial cost. Mazda can afford it or at least the big R&D tax deduction.