Homogeneous charge compression ignition (HCCI) represents a low-temperature combustion paradigm in which a premixed air–fuel mixture auto-ignites simultaneously throughout the combustion chamber. By ...

General Motors Corp. today unveiled a new engine it that it says will increase fuel economy by 15 percent by burning gasoline the same way a diesel engine burns fuel. GM calls the innovation ...

Like most auto engines, HCCI engines inject a premixed charge of fuel and air into the cylinder. But combustion is not set off by a spark plug. Instead, the mixture is compressed until it autoignites, ...

News that Mazda is hoping for a 30% fuel efficiency gain on an HCCI (Homogeneous Charge Compression Ignition) engine to be introduced on the next generation Mazda3 in late 2018 brings this technology ...

Control of auto-ignition phasing in homogeneous charge compression ignition (HCCI) combustion has been achieved with a variety of methods that affect the thermodynamic state and the chemical ...

In the race to field energy-efficient vehicles, don’t count out internal combustion technology just yet. GM recently debuted its homogeneous-charge-compression-ignition (HCCI) system in two drivable ...

However, not all innovations are equal and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

HCCI combines the benefits of gasoline and diesel engines without their drawbacks, achieving diesel-like efficiency while maintaining gasoline-level cleanliness. However, controlling HCCI is a ...

With stricter emission standards and the rise of electric powertrains, it might seem like the internal-combustion engine's days are numbered. But Engineering Explained host Jason Fenske believes ...