ENP Newswire -
Release date- 17072014 - At its final review in Vigo,
This greater efficiency will help unlock the market for fully electric and hybrid vehicles: by increasing driving range without enlarging the battery. Engineers and researchers have worked to improve the electrical powertrain, the regenerative braking system, the navigation system, and the surround sensors, as well as on functions that connect these elements with each other. The two fully operational electric vehicles they have built have already demonstrated an impressive potential for making driving in real conditions more economical.
OpEneR, which stands for 'optimal energy consumption and recovery based on a system network,' was launched in
One task was the development of 'eco routing'. This considers the specific needs of an electric vehicle when calculating the best route. The navigation system now continuously factors in the car's real energy consumption behavior. Test drives demonstrated energy consumption savings of up to 30 percent in return for a longer travel time of just 14 percent. Shortcuts in inner-city traffic proved to be a particularly effective way of increasing efficiency.
Various solutions increase driving efficiency
It has long been widely accepted that a proactive driving style is the most effective way to reduce fuel consumption. The behavior of the ACC adaptive cruise control has therefore been especially adapted to an economical driving style. Additionally, enhanced map data also includes information on inclines, declines, and speed limits, while car-to-infrastructure communication provides information about traffic lights. These data create an electronic horizon that can be used to further optimize both the ACC function and the coasting function. This feature tells drivers when to lift the accelerator pedal as they approach city boundaries or speed limits. The transmission then switches to idle, making the most of the car's momentum.
An intuitive HMI concept and an attractive cockpit based on a freely programmable TFT display also have been designed to make all the relevant information easy to read. In addition, the enhanced map data makes the calculation of the remaining mileage significantly more accurate and transparent to the driver.
A further major task was to find the ideal interaction between the electrical powertrain and the regenerative braking system. For the best possible recuperation, engineers equipped the two
To support the development process, the team used advanced co-simulation techniques, including realistic vehicle and environment interaction. A seamless approach was employed to enable fast migration of the developed functions and their simulated test cases for further development and validation on the AVL InMotion powertrain testbed.
As these features were incorporated into the two prototypes, numerous test drives were performed. To evaluate the efficiency gain, the simulation tools and testbeds developed by AVL, Bosch, and FZI were used, as well as the private test tracks belonging to Bosch and
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AVL is the world's largest independent company for the development of powertrain systems with internal combustion engines as well as instrumentation and test systems. AVL is acting in the following scopes of business. Development of Powertrain Systems - AVL develops and improves all kinds of powertrain systems and is a competent partner to the engine and automotive industry. Simulation - In addition AVL develops and markets the simulation methods which are necessary for the development work. Engine Instrumentation and Test Systems - The products of this business area comprise all the instruments and systems required for engine and vehicle testing.
For more information, please visit https://www.avl.com/home.
Automotive Technology is the largest
For more information, please visit www.bosch.com.
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Applied research in information technology with reliable knowledge and technology transfer is the core business and competence of the
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With its three world-renowned brands,
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