Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Software patch makes car more fuel-efficient

01.03.2007
A car wastes energy almost continuously. Whether it is running in first, second, or a higher gear, there is only one position of the accelerator that guarantees optimal performance.

Accelerating a little less or a little bit more can cause considerable loss of energy. John Kessels has designed a way to save energy by enabling the car to achieve optimal engine performance more frequently. With a relatively small modification it is possible to reduce fuel consumption by 2.6%. Kessels obtained his doctorate from the Technical University Eindhoven (TU/e) on Wednesday February 14, 2007.

Car manufacturers are frequently criticized for failing to reduce fuel consumption. In order to meet the Kyoto objectives, European car manufacturers have agreed to reduce the emission of CO2 for their fleet to 140 grams per kilometer in 2008. Many car manufacturers have not yet attained this reduced emission. Ford is one of them and the company has been diligently searching for a way to further increase the fuel-efficiency of its cars.

Hybrid cars

One way to reduce fuel consumption is to build so-called hybrid cars. In these cars the internal combustion engine is more fuel-efficient because a secondary power source is available: a generator. If the power from the combustion engine exceeds the actual power demand for driving, this generator stores the excess power in the car’s battery. It also works the other way around. The generator can provide extra power if the car needs more power than the combustion engine can provide at optimum performance. Hybrid vehicles thus reduce fuel consumption by 25% or more.

Electric energy systems

Kessels examined the possible savings without using the advanced hybrid technology. He found that excess power can be used to charge the car battery. In addition, the generator, which charges the car battery, can be turned off when it is inefficient for the engine to power it, which leads to reduced fuel consumption. The car can also brake electrically, generating energy, which can be stored in the battery. Finally, he found that it is possible to partly shut off the electric energy systems, such as rear window and seat heating, for further improvement of the power supply system.

Software patch

With his new method Kessels can achieve a total fuel savings of 2.6%, without having to replace any of the parts of the car. Simply uploading a software patch to the car’s computer and adding one single small cable suffices. If it were possible to shut the engine off when it is idle, a savings of 5 to 6% could be achieved. This, however, would require significant adjustments to the car, including installing a more powerful starter motor and an automatic gearbox.

Xavier Theunissen | alfa
Further information:
http://www.tue.nl

More articles from Automotive Engineering:

nachricht Improvement of the operating range and increasing of the reliability of integrated circuits
09.11.2016 | Technologie Lizenz-Büro (TLB) der Baden-Württembergischen Hochschulen GmbH

nachricht New algorithm for optimized stability of planar-rod objects
11.08.2016 | Institute of Science and Technology Austria

All articles from Automotive Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Closing the carbon loop

08.12.2016 | Life Sciences

Applicability of dynamic facilitation theory to binary hard disk systems

08.12.2016 | Physics and Astronomy

Scientists track chemical and structural evolution of catalytic nanoparticles in 3-D

08.12.2016 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>