Objective
The project intends to demonstrate that the use of combined diesel-electric propulsion systems with intermediate gyromagnetic energy accumulation, is likely to enable town buses to be run with a considerable reduction in energy consumption.
It is also intended to demonstrate that this type of propulsion system constitutes an economical alternative to the conventional diesel engine by virtue of its advantages with respect to both utilisation and profitability.
Savings of 8 TOE/year/vehicle (40% of the consumption of conventionnal vehicles) are to be expected. In application, payback time would be 4.6 years.
The power developed by the conventional type diesel-engines which equip town buses exceeds, by a factor 5, the average power needed for the acceleration phases of the operational cycles.
Furthermore, conventional drive units do not have a braking energy recovery system. To date, all systems developed for reducing consumption by recuperation of the braking energy (electro-chemical accumulator, flywheel hydraulic accumulator) involve a number of disadvantages such as low efficiency, high accumulator weight, limited operational range and high cost of component parts.
The diesel-electric bus fitted with an energy recovery accumulator operates by the reciprocal action of the following elements:
- An electric drive motor working as a generator during the braking periods,
- a gyromagnetic energy accumulator with an integrated motor-generator unit which converts the electrical power into rotary power,
- an electronic control system for current regulation and distribution betweenthe different elements, and
- a diesel-electric generator set, power source.
The diesel-electric generator set must be able to meet the vehicle's average power needed for study running conditions.
The peak power required during acceleration is supplied by the gyromagnetic accumulator which recovers most of the braking energy and redistributes it directly by means of the electronic control system.
Profitability calculations should take into account an additional investment of DM 5000 of per mass produced vehicle, which, considering fuel saving of 9,600 Litres/year/vehicle, produces a payback time of 4.6 years.
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
82319 Starnberg
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.