Objective
With increasing CO2-emissions and reducing oil resources fuel economy improvement of passenger car S.I. engines has become a major issue. A promising approach is the reduction of pumping and friction losses by shifting the operation point to lower engine speed/higher load by engine down sizing. This requires small-supercharged engines with a high specific power (kW/litre). To improve part load efficiency and to avoid full load knocking these engines must have a Variable Compression Ratio (VCR). A down-sized, highly boosted engine with variable compression ratio has a 30% fuel saving potential compared to a model year 1998 vehicle and has simultaneously low exhaust emission levels as 'a=1.0-concept' with the well developed TWC technology. The goal of this project is to demonstrate these benefits through single-cylinder investigations with different VCR mechanisms as well as multi-cylinder test bench and in-vehicle investigations. As a final output, the industrial feasibility and the costs of such an engine concept shall be demonstrated.
The outcome of the project can be summarized as follows: Three different VCR concepts have been designed and manufactured. In parallel to the concept phase, a literature and patent study, regarding existing VCR-concepts has been accomplished by the consortium. In addition to the hardware designs, the combustion calculation for VCR engines, supported by single cylinder investigations have been conducted. Based on this results, 2 full-size validator engines have been produced and installed into validator vehicles and were tested in the MVEG cycle. Depending on the VCR system used and the degree of down sizing fuel improvement of up to 27% were measured. The fuel improvement resulting only on the optimal compression ratio depending of load and speed come up to 8% (w./o. downsizing effect).
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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.
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.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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.
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
AACHEN
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.