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Concurrent and collaborative modeling of automotive engine design should consider synthetically manufacturing and assembly process, and may be involved with many disciplines, such as mechanics, dynamics, vibration analysis, and so on. Firstly, the constraints network approach is presented to model concurrent and collaborative product development process. Secondly, interval consistency algorithm is adopted to predict the potential conflicts and specify the interval of design parameters. The method of concurrent and collaborative design is presented. Finally, the concurrent and collaborative system of automotive engine design is presented.