Supplier Spotlight

Video Exclusives

Lucid Air prototype testing

gtr

With 1,000hp and up to 400 miles driving range, the Lucid Air is one of the most exciting EC developments of the year so far. Watch here the prototype being tested earlier this year.


Audi Q8 concept

gtr

As Audi gets ready to launch the Q8 PHEV production model, here's a detailed under-the-skin look into its 330kW, 700Nm, 1,000km driving range powertrain.

Click here/on image to watch video

Web Exclusives

« back to listing

Efficiency Leap - 48V architectures

Continental and Schaeffler, in close collaboration with Ford, have developed the second-generation Gasoline Technology Car (GTC II). Using a 48V P2 Hybride architecture, the system is claimed to deliver a 25% improvement in fuel economy

 

Continental and Schaeffler, in close cooperation with Ford, have recently presented the second-generation Gasoline Technology Car (GTC II) concept. Its predecessor, GTC I, was introduced two years ago and represented a 17% improvement in the NEDC fuel efficiency over a standard Ford Focus 3-cylinder on which it was based.

The GTC II showcases the potential of intelligent, latest-generation 48-volt hybridization in its most highly advanced form. The GTC II promises an improvement of further approximately 13% on the NEDC fuel consumption of the GTC I. The most obvious difference between the GTC II and the GTC I is the highly efficient integration of the electric motor between the internal combustion engine and the transmission in the second-generation model (“P2 architecture”).

"The second-generation Gasoline Technology Car demonstrates the huge potential of a mild hybrid when the 48 volt electrical system, the internal combustion engine and the operating strategies are optimized holistically as a complete system,” says José Avila, member of the executive board of Continental and president of the Powertrain Division.

"The GTC II, just like the GTC I, is a milestone in terms of the successful integration of highly efficient hybrid operating strategies in a manual-transmission vehicle," added Prof. Dr.-Ing. Peter Gutzmer, member of the Schaeffler executive board responsible for Research & Development. "The GTC II’s electronic clutch supports functions such as electric launch, electric stop-go operation and energy recuperation at speeds almost down to standstill."

"The Ford Focus with its 1.0-liter Ecoboost engine, which has won multiple International Engine of the Year awards, provides an excellent starting point for a hybrid vehicle, showing the potential that hybridization offers even for an engine that starts from such a high baseline. When integrating the GTC II concept, the focus was therefore on overall powertrain optimization,” says Carsten Weber, manager Engine & Powertrain Systems Research & Advanced Engineering, Ford Europe.

Efficiency Leap – GTC II with Next-Generation 48 Volt Technology

In its general principles, the GTC II has much in common with the GTC I. Both vehicles demonstrate the potential of mild 48 volt hybridization for cars with downsized gasoline engine. And both vehicles derive their fuel economy edge over the reference model mainly from the synergies between their featured technologies. Their hybrid operating strategies are based on a holistic integration approach focused on delivering a whole that is greater than the sum of its parts.

However the GTC II goes a step further than the GTC I, exploiting potential that was still out of reach for the earlier model, both as regards the electric drive system and the internal combustion engine.

The GTC II’s electric motor is integrated in the drive train by means of a belt that runs between the internal combustion engine and the transmission. Two clutches, one upstream and one downstream of the belt, allow the internal combustion engine to be completely decoupled when required. The electric motor can then be used independently of the ICE. As a result, the GTC II supports both constant-speed electric coasting at low load, as well as electric launch, for example in stop-start driving.

The absence of any engine braking effect in deceleration phases means that more kinetic energy is available for recuperation. Also, since overrun is avoided, cooling of the engine and aftertreatment system is reduced. This effect, which is further enhanced by the thermal management system that already proved itself on the GTC I, is a big advantage for a hybrid vehicle, where engine-off phases account for a relatively large proportion of the driving cycle. And thanks to systematic utilization of Continental’s high-performance electrically heated 48 volt EMICAT catalyst, engine-out emissions are reduced immediately, even after long engine-off phases. This strategy plays a big part in ensuring that the GTC II complies with the strict requirements of emissions standard Euro 6 c (2017/2018).

Higher Thermodynamic Efficiency

Measures focused on the internal combustion engine in the GTC II also included the further optimization of the engine’s thermodynamic efficiency, with a higher compression ratio and an engine cycle with late closing of the intake valves (Atkinson cycle) resulting in reduced specific fuel consumption. At the same time a Continental turbocharger specially adapted to this engine and featuring a radial-axial turbine offers fast response particularly at low engine speeds. In combination with the electric torque assistance, this makes for more flexibility when defining the operating strategy and improves driveability, which also enhances customer acceptance.

 

22 April 2016

Read Latest Issue

International Engine of the Year Awards
Read Latest Issue
Read Latest Issue

Web Exclusive Articles

Measuring pressure during engine development
FPT Motorenforschung, a Swiss manufacturer of engines for commercial vehicles, construction equipment and agricultural machinery, uses Keller’s M5 pressure transmitters in its test benches to achieve reliable, precise measurement results
Read Now

Engines on test: Hyundai-Kia G3LC-6iL
At the center of the all-new Kia Rio, the all-aluminum three-cylinder TGDi unit uses a host of the latest technologies such as integrated turbocharger and manifold, variable valve timing and laser-drilled injectors to boost power, refinement and efficiency over the outgoing 1.4-liter engine
Read Now

Lucid Air prototype testing
With 1,000hp and up to 400 miles driving range, the Lucid Air is one of the most exciting EC developments of the year so far. Watch here the prototype being tested earlier this year.
Read Now


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukipme.com for more details.

فروشگاه اینترنتی فروشگاه اینترنتی فروشگاه اینترنتی دانلود فیلم شعر فال حافظ کانال تلگرام کانال تلگرام بی بی سی فارسی من و تو فروشگاه اینترنتی فروشگاه اینترنتی کانال تلگرام چت روم لز رادیو فردا خبر download youtube عکس های لو رفته کانال تلگرام گروه تلگرام کانال سک30در تلگرام کانال سک30در تلگرام کانال تلگرام کانال سک30در تلگرام کانال تلگرام کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 در تلگرام کانال سوپر کده تلگرام کانال تلگرام خفن کانال تلگرام +18 کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 در تلگرام کانال سوپر کده تلگرام کانال تلگرام خفن کانال تلگرام +18 Google کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 در تلگرام کانال سوپر کده تلگرام کانال تلگرام خفن کانال تلگرام +18 کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 در تلگرام کانال تلگرام کانال تلگرام خفن کانال تلگرام +18 کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 تلگرام کانال سوپر کده تلگرام کانال تلگرام خفن کانال تلگرام +18 کانال تلگرام لوتی کانال سک30در تلگرام کانال سک30 در تلگرام کانال سوپر کده تلگرام کانال تلگرام خفن کانال تلگرام +18

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukipme.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukipme.com