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Computer-aided technology of car brakes tribological designing is presented. It is founded on DataBases (DB), Expert Systems (ES) created by heuristic logical programming methods using an artificial intelligence approach. There are also Hybrid Expert Systems (HES) which have "pure" Expert System parts and calculation modules (developed by traditional methods of software creating). The DB include detailed information regarding materials, prototypes of the car brakes, experimental results together with description of the test conditions. The basis of the ES is a Knowledge Base (KB). The knowledge is presented as a system of rules (if...then). The ES are teachable. They can build logical chains allowing checking hypothesis by comparison of proposed fact with the rules. The logical conclusions can be explained in details automatically. First, filling of the KB and DB is done, then the added information is confronted with the KB rules and compared with numerical information from DB.

Computer-aided technology of gathering, analysis and processing of tribological information is presented. It is based on Internet opportunities for exchange of information, Database and Knowledge processing technologies for keeping and using of the information. Proposed approach allows to solve unformalized problems of material choice for friction units by methods of Artificial Intelligence. Algorithms and software for tribodesigning were developed. It could be used either as a separate design tool or as a part of some existing CAD/CAE system. It should allow to include solution of the life cycle improvement problems into computer-aided designing of automotive machines.