Based on the results of the study of determining the criterion for the efficiency of earthmoving machines (EMM) in operating conditions, it is stated that an efficiency factor can be such a criterion. Justification of the efficiency of the proposed methodology is based on the use of reference data obtained with traction bulldozers from 30 to 350 kN, of which five known samples are presented for consideration. Reference data for these bulldozers and the calculation of output and input capacities for each of them as technical systems were used to determine their efficiency value. One of the bulldozers is taken according to the obtained highest value of efficiency. This approach allows you to determine the efficiency for other structures of the bulldozer, in particular, energy sources and energy consumers. For the first time, the total efficiency value for the EMM workflow is determined. According to this principle, based on the proposed methodology, the efficiency value for other EMM can be determined based on reference information, such as motor graders, excavators, scrapers, and the most effective EMM among similar ones can be chosen. The efficiency can also be used to determine the state of the components of the EMM under operating conditions.

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