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GM's HCCI engines now run from idle to 60 mph!
Since our first encounter with General Motors' HCCI (homogeneous charge compression ignition) engines in August 2007, the powertrain research engineers at the GM Tech Center in Warren, MI have continued plugging away at the technology, trying to turn it into a marketable reality. The basic premise of compression ignition is simple. Based on the Ideal gas law (PV=nRT), if you decrease the volume of a particular quantity of air, the temperature rises to the point where fuel will spontaneously combust. The hard part is controlling the pressure, ... Read more →
GM powertrain plans: high-tech, low weight Jeremy Korzeniewski
Click above for more early images of the production Chevy Volt It's no secret that we appreciate what General Motors has been able to do with just two-liters. The direct injected and turbocharged ...
Bosch CEO talks lithium ion batteries and diesels Sam Abuelsamid
In the wake of a new lithium ion battery joint venture, Bernd Bohr, CEO of Bosch is not concerned that automakers will try to keep battery production in house. In an interview with German magazine ...
General Motors opens new powertrain engineering center that will create E-Flex Sam Abuelsamid
On Friday GM officially kicked off use of its new Powertrain Engineering Development Center in Pontiac MI. The new $463 million facility includes 120 dynamometer test cells for exercising all manner ...
GM HCCI engine can operate at idle Sam Abuelsamid
General Motors first showed off its prototype Homogeneous Charge Compression Ignition (HCCI) engines last summer in an Opel Vectra and a Saturn Aura. We had the opportunity to drive these vehicles at ...
Breaking news:
- REPORT: Tesla Motors planning IPO "soon" Aptera Update: Backstory uglier than we knew? BMW prices the ActiveHybrid X6 starting at $89,725 REPORT: Think will build U.S. plant in Indiana, appoints two new execs Officially Official: Aptera production pushed back to 2010 First 25 production i-MiEVs roll into the UK Ford Fusion wins Motor Trend Car of the Year award Aptera update: Vacation instead of ousters? Electrification Coalition sees plug-ins making up 25 percent of market by 2020 Renault Fluence EV to be assembled in Turkey
Mercedes wants to eliminate petroleum from its lineup by 2015 1 year ago on Autoblog Green
By the middle of the next decade Mercedes-Benz wants its entire lineup to be able to operate entirely free of petroleum. The German giant is working on a variety of technologies that will help provide crude oil free transport such as battery electrics, fuel cells and highly efficient internal ...
GM to debut HCCI on Opel Insignia? 1 year ago on Autoblog Green
Click on the HCCI equipped Opel Vectra for a high-res gallery There are rumors floating around the interwebs today regarding the Opel Insignia being the first official product from General Motors using its highly-efficient homegeneous charge compression ignition, or HCCI for short. We can't confirm ...
Does diesel have a future? 1 year ago on Autoblog Green
Does diesel have a future? Autoexpress editor Dan Strong believes the answer is a clear no. He doesn't mince words in his new column: "Thanks to high fuel costs, tough-to-meet emissions targets and growing competition for scarce fossil fuel resources, the engine once championed for its efficiency ...
VIDEO: GM's Paul Najt talks about HCCI engines 1 year ago on Autoblog Green
Last summer we had the chance to meet up with GM powertrain researcher Paul Najt and drive GM's prototype HCCI engines. Homegeneous charge compression ignition engines basically take some of the technical concepts behind diesel engines and combine it with a gasoline engine. The result is a new ...
Most promising green technologies number six: HCCI 1 year ago on Autoblog Green
Click on the image to view high-res shots of the Mercedes F700 concept Homogeneous Charge Compression Ignition, or HCCI, holds out a great deal of hope for green automotive enthusiasts. Mercedes-Benz has shown concept vehicles using the technology, which they refer to as DiesOtto, in their F700 ...
GM provides update on Volt vehicle and battery development
First Drive: 2010 BMW X6 ActiveHybrid is technologically impressive... but to what end?
At Witz' End: Notes from "The Business of Plugging In"
Editorial: Henderson's fuel cell 10X cost comments are out of context
Greenlings: How does weight affect a vehicle's efficiency?
Greenlings: What's the difference between kW and kWh?
Aptera Update: Backstory uglier than we knew?
Small piece of history: 1936 Mercedes 260D, the first successful diesel passenger car
Japan EV Club creams Tesla range record with Tokyo to Osaka run
Toyota starts discussions on who will get PHEV Priuses
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