Evaluation and analysis of comprehensive performance of a brake pedal based on an improved analytic hierarchy process

2021 ◽  
pp. 095440702098773
Author(s):  
Yili Gu ◽  
Jinjie Xie ◽  
Hongji Liu ◽  
Yang Yang ◽  
Yudian Tan ◽  
...  
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Brake Pedal ◽  
Affecting Factors ◽  
Passenger Cars ◽  
Analytic Hierarchy ◽  
Hierarchy Process ◽  
Improved Analytic Hierarchy Process

Due to the considerable increase in car parc and the remarkable improvement in vehicle properties and cost performance, higher requirements are being placed on driving comfort. With regard to the braking system, the enhancement of the brake pedal feel is one of the ways to improve the comfort, and affecting factors include spatial layout, dynamic characteristics, and the characteristics matching with the vehicle motion, so a comprehensive evaluation of a brake pedal is highly essential. This paper, by taking passenger cars in China as the research object, established a comprehensive evaluation system for pedals based on the improved analytic hierarchy process. The index weight in each index level was determined through the G1 method, and an experimental design was conducted on individual indices on the lowest level. The relationship parameters between the indices were measured through the test and comprehensive scores of each automobile pedal were obtained in combination with the evaluation method designed. Based on comprehensive scores, a typical analysis on 16 test vehicles was carried out, followed by a comparison of different index levels. Through result analysis, the direction for pedal improvement was proposed, and the feasibility of the method with the case is verified, which provides a scientific basis and a reference for vehicle pedal development, the calibration in position layout, and the pedal design.

scholarly journals An evaluation method for green logistics system design of agricultural products: A case study in Shandong province, China

2019 ◽  
Vol 11 (1) ◽  
pp. 168781401881687 ◽  
Author(s):  
Songyuan Ni ◽  
Yu Lin ◽  
Yongxing Li ◽  
Hui Shao ◽  
Shiguang Wang
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Agricultural Products ◽  
Green Logistics ◽  
Analytic Hierarchy ◽  
Fuzzy Transformation ◽  
Hierarchy Process

Recently, the environmental issue caused by logistics of agricultural products has attracted a great deal of attention. In order to solve the problem, much of work focuses on green logistics to decrease environmental pollution. However, the green logistics evaluation system of agricultural products is insufficient. Therefore, establishing a reasonable green logistics evaluation system for agricultural products plays a key role in the development of green agricultural products. In this work, domestic and international environmental factors which affect the development of the green logistics of agricultural products are analyzed based on reduction, reuse, and recycling principle of circular economy. In addition, a series of evaluation indicators for green logistics of agricultural products are developed. A fuzzy analytic hierarchy process method is proposed to make a comprehensive evaluation for green logistics of agricultural products based on evaluation indicators. The method combined analytic hierarchy process and fuzzy theory, where a fuzzy transformation operator is introduced. The proposed method is applied for decision-maker in view of knowledge management. In order to verify the applicability of approach, the approach is applied to green logistics of Shandong agricultural products.

FAHP Based Comprehensive Evaluation System of Water Environment Security

2011 ◽  
Vol 183-185 ◽  
pp. 1486-1490
Author(s):  
Qian Qian Dai ◽  
Jun Liang Liu ◽  
Tie Jian Zhang
Keyword(s):  
Analytic Hierarchy Process ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Water Environment ◽  
Analytic Hierarchy ◽  
Scale Method ◽  
Comprehensive Evaluation System ◽  
Judgment Matrix ◽  
Hierarchy Process ◽  
Water Environment Security

The evaluation system of water environment security is improved by using fuzzy analytic hierarchy process (FAHP) in determining weights of various factors of the system. First, priority judgment matrix is FAHP uses three-scale method to construct and then fuzzy consistency judgment matrix is obtained. It overcomes many shortcomings of traditional AHP, such as the difficulty to scale when assigning weights, the need to conduct consistency testing, a large amount of calculation and low accuracy of calculation. It is effective and reasonable in the evaluation of water environment security.

Assessment on Power System Black-Start Schemes Based on Entropy-Weighted and Improved Analytic Hierarchy Process Algorithm

2014 ◽  
Vol 1070-1072 ◽  
pp. 651-656
Author(s):  
De Xian Liu ◽  
Jian Hua Zhang ◽  
Bin Cao
Keyword(s):  
Power System ◽  
Analytic Hierarchy Process ◽  
Comprehensive Evaluation ◽  
Entropy Method ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Power System Restoration ◽  
Entropy Weighted ◽  
Hierarchy Process ◽  
Improved Analytic Hierarchy Process

Reasonable black-start scheme is of great significance to power system restoration. The entropy method and improved analytic hierarchy process algorithm are applied in evaluation indexes determination. Compared to the traditional algorithm, it takes into account the objectivity of reality and the subjectivity of human experience and adjusts both relative importance by a impact factor. It dose.t need the optimization calculations. At the same time, the fuzzy consistent matrix is applied to improve the traditional analytic hierarchy process, avoiding the consistence problems. Finally, compare the pros and cons of each program by calculating the comprehensive evaluation index to achieve the program’s full sort. The calculation process is simple, the efficiency is obviously improved and the availability of the method is validated through an example.

Fuzzy Comprehensive Evaluation of Water Resources Carrying Capacity based on Vague Method

2014 ◽  
Vol 501-504 ◽  
pp. 2040-2044 ◽  
Author(s):  
Guan Yu Hou ◽  
De Shan Tang
Keyword(s):  
Water Resources ◽  
Analytic Hierarchy Process ◽  
Carrying Capacity ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Fuzzy Matrix ◽  
Water Resources Carrying Capacity ◽  
Degree Of Membership ◽  
Hierarchy Process

China is a water resource-poor country, in recent years, rapid population growth resulting in water issues have become increasingly prominent. Taking Anhui Province as an example, using fuzzy synthetic evaluation method and combining the analytic hierarchy process evaluation analysis of water resources carrying capacity. Firstly, establishing the evaluation criteria of the index system of regional water resources carrying capacity and individual indicators, calculating evaluation index weight,establishing the weight fuzzy matrix, using Vague set and analytic hierarchy process method to determine the weight vector.Secondly, compositing a fuzzy matrix of weight values after obtaining the value of the weights of the various indicators, calculating the degree of membership, establishing the fuzzy relation matrix, fuzzy subset into a comprehensive evaluation model, and seeking the comprehensive evaluation value .Finally, determining the level of sustainable use of water resources in the specific area based on the principle of maximum degree of membership . After the evaluation are analyzed and compared in order to elaborate the evaluation method is feasible and effective.

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