Method for determining optimal pairing mode of vehicle-mounted relay contacts
A relay contact, the best technology, applied in the direction of instruments, complex mathematical operations, data processing applications, etc., can solve the problem of not fully considering the poor evaluation elements, unable to make a reasonable evaluation of the performance of the on-board relay, etc., and achieve objective evaluation results. Fairness, reduction of too many evaluation rules, and strong practicability
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Embodiment 1
[0078] exist figure 2 On the basis of the hierarchical structure of the evaluation elements shown, the required test data is selected as the original data, and the data when the 10A current level asymmetrical contacts are paired is sorted out. The results are shown in Table 1.
[0079] Table 1 Raw data of each evaluation index when pairing 10A asymmetrical contacts
[0080]
[0081] The standardized decision matrix X is obtained by processing the raw data of asymmetric contact pairing under the condition of 10A current:
[0082]
[0083] On the basis of the standardized decision matrix X, the original data is normalized to get:
[0084]
[0085] The calculated entropy value E of each evaluation index is:
[0086] E=[0.851 0.703 0.780 0.882 0.854]
[0087] The entropy weight W of each evaluation index is calculated as:
[0088] W=[0.160 0.319 0.237 0.127 0.157]
[0089] Each column of the standardized decision matrix is associated with the corresponding weight ...
Embodiment 2
[0104] The difference is that the current rating is 20A, and the rest are the same.
[0105] The data of asymmetrical contact pairing at 20A current level are sorted out, and the results are shown in Table 2. The standardized decision matrix X is obtained by processing the raw data of asymmetric contact pairing under the condition of 20A current:
[0106]
[0107] Table 3 Raw data of each evaluation index when pairing 20A asymmetrical contacts
[0108]
[0109] Normalize the original data to get:
[0110]
[0111] The calculated entropy value E of each evaluation index is:
[0112] E=[0.890 0.756 0.715 0.808 0.799]
[0113] The entropy weight W of each evaluation index is calculated as:
[0114] W=[0.107 0.236 0.276 0.186 0.195]
[0115] Each column of the standardized decision matrix is associated with the corresponding weight w j Multiplying the entropy weight decision matrix V is:
[0116]
[0117] The ideal and negative ideal solutions can be determine...
Embodiment 3
[0130] The difference is that the current rating is 30A, and the rest are the same.
[0131] The data when the 30A current level asymmetrical contacts are paired is sorted out, and the results are shown in Table 3.
[0132] Table 5 Raw data of each evaluation index when pairing 30A asymmetrical contacts
[0133]
[0134]
[0135] The standardized decision matrix X is obtained by processing the raw data of asymmetric contact pairing under the condition of 30A current:
[0136]
[0137] Normalize the original data to get:
[0138]
[0139] The calculated entropy value E of each evaluation index is:
[0140] E=[0.893 0.841 0.885 0.854 0.827]
[0141] The entropy weight W of each evaluation index is calculated as:
[0142] W=[0.153 0.227 0.164 0.209 0.247]
[0143] Each column of the standardized decision matrix is associated with the corresponding weight w j Multiplying the entropy weight decision matrix V is:
[0144]
[0145] The ideal and negative ideal...
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