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This paper intends to show the technological progress in target wheel for rotational monitoring according to newest requests of internal combustion engines (ICE). This job has been made in accordance to automaker specifications, as a consequence it is focused on current injection management system by engine control unit (ECU). The project has been developed based on market prospection, benchmarking, material/process development, validation procedure, etc, These subjects helped to reach such a technological improvement that it raised engine injection management, boosted ECU signal accuracy, and minimized engine emissions and consumption (state-of-the-art solution).

The use of new methodologies to develop new designs for PTFE oil seals has been researched in the near past by many authors and oil seal makers (1) mainly based on finite element analysis,using their own nonlinear modeling (2) and measurement checks. This paper will present a similar approach using FEA as a engineering tool with addition of another known technique called DOE, Design of Experiment ( or Tagushi Method) focusing on a specific problem in our industry. Although, both tools are well known in engineer design our personal experience with many Brazilian and foreign colleagues has shown us a different environment. Therefore, another goal is not only to present a study of oil seals mainly for interested oil seals manufactures and customers, it but also to show a concrete example and the possibilities to expand their use in other branches of the engineering.