Engine and hydraulic element power matching testing method and system
A hydraulic component and power matching technology, which is applied in the field of power matching test of engine and hydraulic components, can solve the problems that the mechanical power matching performance of hydraulic transmission cannot be directly tested and evaluated, and achieve the effect of improving performance
Active Publication Date: 2014-03-26
ZOOMLION HEAVY IND CO LTD
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However, the current existing test system can only test the power performance of the engine, or only test the working performance of the hydraulic components, and cannot directly test and evaluate the power matching performance of the hydraulic transmission machinery formed by the engine and hydraulic components.
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[0039] The performance of the hydraulic transmission machinery powered by the engine is directly affected by the power matching relationship between the engine and the hydraulic components. If the power matching relationship is good, the performance of the hydraulic transmission machinery is good, and vice versa. The present invention will provide a power matching test method and system for an engine and a hydraulic component, wherein the hydraulic component is, for example, a hydraulic pump.
[0040] see figure 1 , figure 1 It is a flow chart of the power matching test method of the engine and hydraulic components provided by the embodiment of the present invention. Such as figure 1 As shown, the power matching test method of the engine and hydraulic components of the present invention comprises the following steps:
[0041] Step S10: Under test conditions, collect the characteristic parameter values of the engine and the characteristic parameter values of the hydrauli...
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The invention discloses an engine and hydraulic element power matching testing method and system. The method includes the steps of collecting characteristic parameter values of an engine and characteristic parameter values of a hydraulic element, obtaining actual output torque and actual output power of the engine according to the characteristic parameter values of the engine, forming the actual torque characteristic curve and the actual universal characteristic curve of the engine according to the actual output torque and the actual output power respectively, obtaining torque of the hydraulic element according to the characteristic parameter values and actual output torque of the hydraulic element, obtaining matched torque, meeting a preset matching condition, of the hydraulic element according to the torque and the actual torque characteristic curve of the hydraulic element, obtaining power corresponding to the matched torque, generating a power spectrum on the actual universal characteristic curve, and evaluating power matching according to the power spectrum and the actual universal characteristic curve. Through the method, reference data are provided for the design and the improvement of a hydraulic transmission machine, and the improvement to performance of the engine and performance of the hydraulic element is facilitated.
Description
technical field [0001] The invention relates to the field of hydraulic transmission mechanical performance measurement, in particular to a power matching test method and system for an engine and a hydraulic component. Background technique [0002] The machinery that converts engine power into hydraulic energy and then converts hydraulic energy into mechanical energy is called hydraulic transmission machinery. The core of its power performance is not only the power unit engine and hydraulic components (such as hydraulic pumps), but also the comprehensive matching between the two. It will directly affect the overall working efficiency of hydraulic transmission machinery, so the matching test and evaluation research is particularly important. However, the current existing test system can only test the power performance of the engine, or only test the working performance of the hydraulic components, and cannot directly test and evaluate the power matching performance of the hydr...
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IPC IPC(8): G01M15/00
Inventor 冯坤鹏袁治远袁蒙张利侯伟
Owner ZOOMLION HEAVY IND CO LTD