Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


More efficient and cleaner car engines in sight


Imagine a car engine that saves you gas money and protects the environment. That may soon be a reality. Researchers at Karstad University in Sweden, working with the Swedish company Mecel, have developed a new method to make internal combustion engines more efficient and environmentally friendly.

To be able to tune internal combustion engines optimally, information is needed from the combustion process in the engine’s cylinders. This isn’t easy, because it’s hard to monitor what’s going on in the sooty and hot cylinders. The Karlstad scientists and Mecel have found algorithms for a so-called ion current analyzer, which uses statistical signal processing to obtain better combustion information from ion currents. The information is used to control and monitor the engine.

The research project could be of crucial importance to the control of the next generation of internal combustion engines. The researchers recently applied for a patent for the invention. The aim is to get major auto-makers to sign on for its future development.

"If we can improve the quality of the information about the combustion process, an ion current analyzer might be standard in every car sold in the future," says Jakob Ängeby, visiting researcher at the Section for Electrotechnology at Karlstad University and manager of Advanced Engineering at Mecel.

When the air and fuel in the engine’s cylinder is burned, free electrons and charged ions are formed in the combustion gases. By sensing the concentration of ions in the gas, information on the combustion process can be retrieved. It’s not new knowledge that ion-sense can be used for this purpose. The technology is already in use today and has been incorporated in a series of products for the automotive industry by Mecel.

What the researchers at Karlstad University are adding is the application of statistical signal processing to acquire information of better quality than previously achieved from ion current measurements. For example, the information can be used to monitor and control the air to fuel ratio and pressure max or to develop the

engine’s combustion stability to get the car to run as smoothly as possible.

"With better information about the combustion, you can control engines better and make them more efficient, which in turn leads to better gas mileage," says Jakob Ängeby.

Mecel has been a leader in research and development of ion–sense for more than 20 years. The Åmål-based company works on the absolute cutting-edge of advanced electronics and software for controlling and extracting information from internal combustion engines. The research project is partially funded by the Foundation of technology transfer (Teknikbrostiftelsen). Besides Jakob Ängeby, Magnus Mossberg and Andreas Jacobsson are involved in the project, both from the Section for Electrotechnology at Karlstad University.

Tina Zethraeus | alfa
Further information:

More articles from Automotive Engineering:

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

nachricht Automated driving: Steering without limits
05.02.2016 | FZI Forschungszentrum Informatik am Karlsruher Institut für Technologie

All articles from Automotive Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

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

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Innovative technique for shaping light could solve bandwidth crunch

20.10.2016 | Physics and Astronomy

Finding the lightest superdeformed triaxial atomic nucleus

20.10.2016 | Physics and Astronomy

NASA's MAVEN mission observes ups and downs of water escape from Mars

20.10.2016 | Physics and Astronomy

More VideoLinks >>>