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

Inactive Publication Date: 2019-09-17
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each parameter may be different from the best and worst at the same time. Under certain conditions, some evaluation elements may be better and other evaluation elements are worse, but it is also subjectively considered that this is the optimal pairing method and cannot Fully consider the poor evaluation factors, so it is impossible to make a reasonable evaluation of the performance of the on-board relay

Method used

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  • Method for determining optimal pairing mode of vehicle-mounted relay contacts
  • Method for determining optimal pairing mode of vehicle-mounted relay contacts
  • Method for determining optimal pairing mode of vehicle-mounted relay contacts

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to a method for determining an optimal pairing mode of vehicle-mounted relay contacts. The method comprises the following steps: firstly, establishing evaluation indexes from the perspective of cost consumption for analysis, performing weight calculation on each evaluation index by adopting an entropy weight method, reducing the subjectivity of the weight calculation, and exploring the amount of information contained in original data, so that the determination of the weight of each index is more accurate; establishing an evaluation result quality grade; using the TOPSIS model to obtain the corresponding evaluation value, and determining the quality grade of each contact pairing mode. The quality of the vehicle-mounted relay contact performance under different pairing modes can be comprehensively evaluated.

Description

technical field [0001] The invention relates to a method for determining the optimal pairing mode of vehicle-mounted relay contacts. Background technique [0002] Vehicle-mounted relays are mainly used in automotive control, automotive electronic instruments and fault diagnosis systems. Its performance is directly related to the safety of the car during driving, and the contact is a very important part of the vehicle-mounted relay, and the vehicle-mounted relay Most faults occur at the contacts. At present, the contacts of on-board relays are mostly symmetrically paired, and there are shortcomings such as serious directional transfer of materials under the action of DC arc, and easy fusion welding under the impact of instantaneous high current, which affects the reliable operation of the electrical system. In addition, automotive relays often use AgMeO material as contacts, which may have problems such as high contact resistance, high temperature rise, and high hardness, wh...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06F17/16
CPCG06Q10/06393G06F17/16
Inventor 王海涛章枚王连峥王景芹朱艳彩
Owner HEBEI UNIV OF TECH
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