Database-based engine performance parameter decomposition region integral evaluation method

Abstract

The invention provides a database-based engine performance parameter decomposition region integral evaluation method. According to the method, first, data of a to-be-evaluated engine is uploaded to anengine database, and a dynamic library, based on which the engine is evaluated, is selected, wherein the dynamic library can be the whole engine database and also can be selected and configured by auser; layer-by-layer decomposition is performed on engine performance indexes, and full scores of all subordinate indexes are determined; bottom index performance data is extracted; a score calculation method for all bottom indexes is determined, and an accumulation method is adopted to calculate scores of all the subordinate indexes; and meanwhile an integrated performance evaluation score can becalculated. Through the evaluation system, performance levels of all the performance indexes and the integrated index of the to-be-evaluated engine in the selected dynamic library can be evaluated, technical advantages of an advanced engine can be popularized to the maximum extent, and guidance is provided for optimizing engine performance.

Description

technical field [0001] The invention belongs to the field of engine performance evaluation, in particular to a database-based engine performance parameter decomposition area integral evaluation method. Background technique [0002] The current engine evaluation activities are well-known both at home and abroad, including the "China Heart" Top Ten Engine Selection, Ward's Top Ten Engine Selection, and the International Annual Best Engine Selection, which are known as the world's three major engine selection activities. The above three engine evaluation activities are based on the engine in the car state, through the driving experience of the judges, combined with the relevant performance data provided by the car manufacturer to vote or score the engine. Such evaluation will be affected by factors such as human perception factors, engine and vehicle matching, and the performance indicators of each engine refer to the performance data provided by the manufacturer, and each manu...

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Problems solved by technology

Such evaluation will be affected by factors such as human perception factors, engine and vehicle matching, and the performance indicators of each engine refer to the performance data provided by the manufacturer, and each manufacturer's test standards, test environment, test There will inevitably be differences in conditions, etc., which makes the entire evaluation process occupy a relatively large subjective component and is not easy to operate

[0003] Most of the current engine performance evaluation methods focus on a certain performance index to evaluate the engine, seldom consider the overall performance, and only use a small number of indicators to simply compare the relative advantages and disadvantages of the overall performance of certain engines. When evaluating a new engine, it will be impossible to accurately locate the performance of the engine because there is no huge database to support it

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