2023 Easter Jeep Safari Sees four new electrified concepts, including the reimagined Jeep Wrangler Magneto 3.0

More

Lamborghini Revuelto is the Aventador-replacing V12-plug-in hybrid hypercar

More

2024 Kia EV9 debuts with 541 km range, 800V charging

More

Ford Reveals All-Electric Explorer SUV For The European Market

More

Truemag

  • Electric Car News
  • Electric Car Reviews
  • Plug-in Hybrids
  • Technology
  • Home
  • About Us
  • Privacy Policy
  • Advertise
  • Charging Map

Cost-efficiency Of Plug-In Hybrids Calculated A Thousand Times Faster

Plug-in hybrids have low fuel consumption, but require more costly parts than cars with a regular combustion engine. During development, the optimal cost balance must be calculated, which has been extremely time consuming to date.

Now researchers at Chalmers University of Technology have developed a new method that dramatically reduces the time needed for these calculations.

Plug-in hybrids are more fuel efficient thanks to the combination of electric motor and battery. However, the higher number of components the higher the manufacturing costs.

The fuel savings must be calculated based on very long driving cycles, as variations in the way the car is driven and charged on different days plays a major role in fuel consumption. Analysing the fuel efficiency of different plug-in hybrids over long cycles is extremely time-consuming. A whole month of driving has to be analysed second by second, and millions of variables calculated.

Now a research team at Chalmers University of Technology has developed a quick and simple method for engineers to calculate the lowest cost, factoring in both manufacture and driving behaviour. Researcher Mitra Pourabdollah describes the method in her doctoral thesis:

“The operating cost of a plug-in hybrid depends on many different variables, such as the way you drive, how you charge the battery and how far you drive between charges,” she says. “Driving habits also affect what size battery you need. Component prices, different battery types and different driving habits combined result in a huge number of parameters that impact the overall cost.”

The new solution that Mitra Pourabdollah presents involves using a so-called convex optimisation algorithm. The algorithm acts as a tool in which researchers enter the various parameters that can affect the cost of a plug-in hybrid, and see the results very quickly. The new method speeds up this part of the design process twentyfold. In extreme cases, calculations that would normally take a thousand hours can be completed in half an hour – almost two thousand times faster than previously.

“Dramatic time savings at this stage will allow more opportunities to consider other aspects of the design of the drivetrain and gain a broader perspective,” Mitra Pourabdollah claims.

“Rapid feedback is essential for creative work,” says Anders Grauers, one of the supervisors of the project. “Even discounting such extreme cases, the new method means that you can get the results of your calculations the same working day, a very significant benefit for the creative process.”

Mitra Pourabdollah’s research colleagues Nikolce Murgovski and Lars Johannesson Mårdh originally came up with the idea of applying convex optimisation to a complex vehicle model. They began by developing a method for plug-in hybrid buses. Following on from their work, Mitra Pourabdollah studied how the method could be applied to passenger cars. The basic algorithm is very flexible – and fun to work with.

“Finding a way to describe the various components that fit convex optimisation is a bit like a game,” explains Mitra Pourabdollah. “The method has many other application areas as well, for example in active safety”.

Apr 23, 2015Blagojce Krivevski
Survey: British Car Owners Love Hybrid and Electric CarsPhoenix Cars to Supply its Electric Flatbed Truck to US NAVY
You Might Also Like
 
New Mexico to add plug-in vehicles to government fleet
 
Study Finds Plug-In Hybrids Will Reduce CO2 and NOx Emissions
Blagojce Krivevski

Blagojce Krivevski is physicist and green technology lover. Keep in touch with Blagojce through his email, web site, Twitter, Linkedin, Facebook and Google+.

April 23, 2015 Electric Car News, Plug-in HybridsChalmers University of Technology, Plug-in Hybrids
Follow Us
  • facebook
  • twitter
  • google-news
  • linkedin
  • youtube
  • instagram
  • rss
Recent News
Faraday Future Starts Production of the FF 91 Futurist Alliance at its FF ieFactory California
April 1, 2023
GMC and EarthCruiser partner to make HUMMER EV overlander concept with solar roof
March 31, 2023
2024 Audi Q8 e-tron electric SUV priced at $74,400 in the US
March 31, 2023
Lotus begins delivery of Eletre luxury electric SUV
March 31, 2023
Electrogenic delivers first customer car fitted with ‘Plug and Play’ electrification kit: A Porsche 911
March 31, 2023
About
ElectricCarsReport.com ElectricCarsReport.com is a website dedicated to pure electric vehicles and the full range of consumer information and tools about electric cars, green technology energy, and the environment.
Latest News
Faraday Future Starts Production of the FF 91 Futurist Alliance at its FF ieFactory California
April 1, 2023
GMC and EarthCruiser partner to make HUMMER EV overlander concept with solar roof
March 31, 2023
2024 Audi Q8 e-tron electric SUV priced at $74,400 in the US
March 31, 2023
Get in touch

Email: [email protected]

Get new stories by email:
Archives
  • facebook
  • twitter
  • google-news
  • linkedin
  • youtube
  • instagram
  • rss
DMCA.com
© ElectricCarsReport.com | All Rights Reserved.