Research on Testing System and Test Method for Charging Facilities of Electric Vehicles

2018 ◽  
Author(s):  
Yuan Sun ◽  
Yanfei Ru ◽  
Xuefeng He ◽  
Chen Dong
Keyword(s):  
Electric Vehicles ◽  
Test Method ◽  
Testing System

An Energy-Based Method for Testing Cushioning Durability of Running Shoes

1993 ◽  
Vol 9 (1) ◽  
pp. 27-46 ◽  
Author(s):  
John F. Swigart ◽  
Arthur G. Erdman ◽  
Patrick J. Cain
Keyword(s):  
Maximum Energy ◽  
Test Method ◽  
New Method ◽  
Testing System ◽  
Materials Testing ◽  
Wear Factor ◽  
Time Profiles ◽  
Running Shoes ◽  
Computer Controlled ◽  
Force Time

A new method for quantifying shoe cushioning durability was developed. This method used a computer-controlled, closed-loop materials testing system to subject the shoes to force-time profiles that were indicative of running. The change in the magnitude of the maximum energy absorbed by a shoe and the change in the magnitude of the energy balance of the shoe were quantified after the shoe had been worn running for a given distance. A shoe that changed very little in these quantities had a small energy wear factor and was deemed to have durable cushioning. The test method was roughly validated through comparison of three shoes of different midsole constructions with known relative durabilities. The shoes were tested at four simulated running speeds for energy properties when they were new and after they were run in for 161 km. The relative durabilities of the tested shoes were consistent with expectations based on the shoes' materials and constructions, showing that the new method has promise in predicting shoe cushioning durability, and thus more complete studies of the method may prove useful.

scholarly journals Road Test-Based Electric Bus Selection: A Case Study of the Nanjing Bus Company

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1253
Author(s):  
Jian Gong ◽  
Jie He ◽  
Cheng Cheng ◽  
Mark King ◽  
Xintong Yan ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Test Method ◽  
Selection Methods ◽  
Road Test ◽  
The Road ◽  
Structure Selection ◽  
Electric Bus ◽  
The City ◽  
Selection Of

Globally, the use of electric vehicles, and in particular the use of electric buses, has been increasing. The city of Nanjing leads China in the adoption of electric buses, supported by city policies and infrastructure. To lower costs and provide a better service, vehicle selection is crucial, however, existing selection methods are limited. Accordingly, Nanjing Bus Company developed a test method based on road tests to select a bus. This paper presents a detailed description of the test method and a case study of its application. The method included an organization structure, selection of eight test vehicles (four 10 m length, four 8 m length) from four brands (a total of 32 test vehicles), selection of indicators and selection of routes. Data was collected from repeated drives by 65 drivers over an 8-week period. Indicators included power consumption, charging duration, failure duration and driving distance. It is concluded that the road test method designed and conducted by the Nanjing Bus Company provides a good framework for the selection of pure electric buses. Furthermore, subsequent experience with selected buses supports the validity and value of the model.

scholarly journals Problems of the dynamic test method for individual protection equipment (shock absorbers)

2018 ◽  
Vol 193 ◽  
pp. 05034 ◽  
Author(s):  
Dmitry Korolchenko ◽  
Vasily Vasilenko ◽  
Georgy Lelikov
Keyword(s):  
Dynamic Performance ◽  
Dynamic Test ◽  
Test Methods ◽  
Test Method ◽  
Testing System ◽  
Protective Properties ◽  
Shock Absorbers ◽  
Individual Protection ◽  
European Standards ◽  
Protective Performance

This paper examines issues of safety of high-altitude works, using individual protection equipment to prevent falling from a height. In particular, the paper reviews personal protective equipment - shock absorber, its dynamic characteristics and related test methods to meet the requirements of Technical Regulations 019/2011 “Safety of Individual Protection Equipment”. The paper discusses the differences between the Russian and European standards for dynamic characteristic testing of shock absorbers, even as the former are harmonized texts of the latter, and the effect of such differences on protective performance of shock absorbers and ultimately on safety of works on heights. It have been shown that tests, conducted in accordance with the Russian regulative documents for dynamic performance of the shock absorbers, entail decreasing in safety usage of such type of IPE and increasing in injuries during falls from a height. It has been defined necessity to actualize the range of the testing system of shock absorbers, and to admit its larger value that will cause increase in protective properties of shock absorbers.

Design of Vehicle CAN-Network Bit-Level Interference Testing System Based on FPGA

2013 ◽  
Vol 765-767 ◽  
pp. 129-133
Author(s):  
An Yu Cheng ◽  
Ju Lin Zhang ◽  
Gang Wang
Keyword(s):  
Fault Tolerance ◽  
Test Method ◽  
Testing System ◽  
System Behavior ◽  
Verilog Hdl ◽  
Data Link ◽  
Link Layer ◽  
Data Link Layer ◽  
Interference Test ◽  
Bit Stream

In order to ensure the system behavior of vehicle CAN network and its ECU nodes meet the requirements of high fault tolerance in complex communication conditions. The CAN networks bit-level interference test method in data link layer based on FPGA was studied. Monitored bit stream and embedded interference by behavior level description through Verilog HDL based on FPGA. Simultaneously, host computer configuration interface which is based on Visual C++ was developed. Using the design of this paper interfered the CAN network evidenced the design can implement interference effectively and flexibly to CAN, reliable stability and high fault tolerance of CAN network can be verified.

scholarly journals Automated Driving License Evaluation

2021 ◽  
pp. 983-988
Author(s):  
Gopinath A R ◽  
Aishwarya S S ◽  
Lakshmi K R ◽  
Lakshmi Devi M S ◽  
Divya Bharathi H Y
Keyword(s):  
Evaluation System ◽  
Test Method ◽  
Testing System ◽  
Automated Driving ◽  
Driving License ◽  
Driving Skills ◽  
Driving Skill ◽  
Driver's License ◽  
Manual Test ◽  
Skill Evaluation

The paper is regarding the automating of driver’s license testing system and updating the results to the person through website and conjointly through registered email. Usually, while driving test the person who requested for license have to be compelled to show his driving skills ahead of the authorities. The person need to operate the vehicle according to several rules. If he fails, he/she are knocked out and have to appear for the driving test next time. The Officials observe mistakes of the applicant physically. The proposed solution for the automation of existing manual test method permits the elimination of intervention of humans and improves the accuracy of driving test thereby going paperless, with Driving Skill Evaluation System. In the proposed system, we have a tendency of taking data from sensor as inputs from hardware simulator and stores into the database. In this system, the person participating in the test are obsereved by sensors. Therefore weather the person is qualified or not is informed to the applicant as well as the authorities. Gradual increase in number of road hazards are due to less practice in driving and illegal driving license given to the unskilled drivers by taking bribe. To beat this drawback, automated driving license test will be advantageous. This solution is introduced for ensuring the quality in approving in license to enhance safety.

scholarly journals Teaching International English Language Testing System (IELTS) Academic Writing and Exam Strategies Online to Develop Omani Students’ Writing Proficiency

2021 ◽  
Author(s):  
Radhika Lakshmi Sankara Narayanan ◽  
Priya Mathew
Keyword(s):  
Diagnostic Test ◽  
Academic Writing ◽  
Online Teaching ◽  
Teaching And Learning ◽  
English Language ◽  
Language Testing ◽  
Test Method ◽  
High Achievers ◽  
Testing System ◽  
International English

The restrictions imposed by the COVID 19 pandemic have forced educators and students worldwide to adapt to online learning. Language teaching in L2 contexts also had to shift to the online mode without compromising the quality of teaching and learning. This paper examines the perceptions as well as the performance of the participants involved in the online International English Language Testing System (IELTS) course offered by Middle East College, Muscat, Oman via MS Teams, an online teaching platform. Most IELTS courses offered online focus on the improvement of exam techniques; however, the developers of this course designed a syllabus based on a needs analysis to cater to the specific needs of the candidates, which would not only improve their test-taking strategies but also develop their writing skills. Adopting the Test, Teach, Re-test method, a diagnostic test was conducted initially, followed by teaching interventions and post-tests. Interviews with teachers, feedback from students, a comparison of diagnostic test scores with exit level scores, and the use of corpus linguistic methods to examine lexicogrammatical features were carried out to determine the effectiveness of the online course. The results indicated that those students who were not motivated performed poorly, whereas the high achievers were those who engaged in self-study and were, to some extent, autonomous learners. This paper contributes to our understanding of the effectiveness of short-term online language classes for Omani learners as well as provides some recommendations for improving the design and delivery of such courses.

A Novel Testing System for Mechanics Properties of the Thin-Walled Micro Components in Inertial System

2016 ◽  
Vol 861 ◽  
pp. 229-235
Author(s):  
Lin Che ◽  
Bo Wang ◽  
Guo Li
Keyword(s):  
Dynamic Test ◽  
Test System ◽  
Test Method ◽  
Testing System ◽  
Performance Tests ◽  
Axial Loads ◽  
Testing Specimen ◽  
Testing Method ◽  
Mechanics Performance ◽  
Thin Walled

In this paper, micro tensile method was combined with micro bridge dynamic test method as a new testing method for mechanics performance to be put forward, and a novel testing system for mechanics properties of the thin-walled micro components was established. The micro testing specimen were designed and manufactured. And related mechanics performance tests were carried on to verify the feasibility and reliability of the test system. The experimental results show that displacements of the testing system are measured with 0.01μm resolution and axial loads are measured with 0.005N resolution.

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