Jump to content
Create New...

Hyundai News:The Debrief: Hyundai's GDCI Four-Cylinder Engine


William Maley

Recommended Posts

William Maley

Staff Writer - CheersandGears.com

November 15, 2013

Imagine taking the benefits of a diesel engine and using that for a gasoline engine. Well Hyundai is doing just that. During a media briefing at the company's Technical Center in Superior Township, MI, Hyundai gave us the preliminary details on their GDCI (Gasoline Direct-Injection Compression) engine.

The goal with the GDCI engine is to "achieve diesel levels of fuel efficiency with conventional gasoline," said Nayan Engineer (Yes, that is his real last name), Hyundai's manager of engine design and testing. Other goals of the engine that Enginner outlined is that it will offer "equal to better performance than conventional gasoline engines" and a "lower system cost (than) diesel engines."

So how is Hyundai planning to pulling this off? Well it begins with the combustion cycle. Much like a diesel engine, the GDCI engine will use high compression (14.8:1 in this case) to ignite the fuel. There is also a set of exhaust valves that open twice per cycle to let heat in to help in the combustion cycle.

The GDCI engine also features a twincharging setup. A mechanical supercharger helps boost power on the low-end, while turbocharger takes over on the high-end.

How much power does the GDCI engine produce? Well, a 1.8L four-cylinder GDCI engine can produce 180 horsepower on a engine dyno. The engine currently has a redline of 4,500 rpm, so it will act and possibly sound like a diesel engine.

The GDCI is currently being worked by Hyundai, Delphi, and the University of Wisconsin. Hyundai hopes to begin testing the engine in vehicles sometime next year. When asked if we'll see this engine in production, Engineer said that it will arrive "not too distant future." Our guess, maybe sometime within the next ten years.

William Maley is a staff writer for Cheers & Gears. He can be reached at [email protected] or you can follow him on twitter at @realmudmonster.


View full article

Link to comment
Share on other sites

It's a shame that GM was never able to bring their HCCI engine to market. They had prototypes running back in 2008. This Hyundai engine sounds very similar to the GM HCCI.

That was actually brought up during the presentation. The problem with HCCI was GM wasn't able to get the power needed and there was concern of engine damage due to pressure needed to ignite the gas.

Link to comment
Share on other sites

  • 4 months later...
Guest MICHAEL ROSENBAUM

HCCI was not only compression ignition (CI) but also homogenised charge, As the speed of an engine is usually controlled by changing the fuel mix and quantity supplied to the engine and ignition timing, and these seem to be compromised at the least by HCCI, then it would seem that such an engine would be mostly set at a constant speed, with vehicle speed being more dependent on an advanced transmission such as an IVT.

I wonder if the GDCI might have a similar issue, albeit the homogenous charge aspect may well be different.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Hey there, we noticed you're using an ad-blocker. We're a small site that is supported by ads or subscriptions. We rely on these to pay for server costs and vehicle reviews.  Please consider whitelisting us in your ad-blocker, or if you really like what you see, you can pick up one of our subscriptions for just $1.75 a month or $15 a year. It may not seem like a lot, but it goes a long way to help support real, honest content, that isn't generated by an AI bot.

See you out there.

Drew
Editor-in-Chief

Write what you are looking for and press enter or click the search icon to begin your search