The article presents an example of application of system approach methods to create a method of designing the installation of internal combustion engines on locomotives. The work is directed on development of the universal technique, allowing to reduce design terms as much as possible and to exclude errors arising at this process. Advantages of creation of the structured process with use of engineering of requirements and creation of the structurally functional scheme of a final product are shown.
Keywords: locomotive, systems engineering, requirement, function, stakeholder, design, subsystem, interfaces.