scholarly journals Interpretation of Non-Exhaust Brake Emission Standard: Laboratory Testing

2021 ◽  
Author(s):  
Xinfeng Zhang ◽  
Cheng Tian ◽  
Zhihui Niu ◽  
Xudong Li
Keyword(s):  
Laboratory Testing ◽  
Exhaust Emission ◽  
Brake Disc ◽  
Emission Standard ◽  
The Road ◽  
New Energy ◽  
On The Road ◽  
Detailed Interpretation ◽  
Safety Systems ◽  
New Energy Vehicles

Now there are more and more new energy vehicles on the road, compare to the traditional vehicles that use the oil to offer the power, the new energy vehicles use electric or hydrogen to offer the power, which have no exhaust pollution emission, but also have non-exhaust emission. Brake and tyre system are the special components of vehicles due to the frequent replacement, they are the main source of the non-exhaust emission. Brake system is one of the most important safety systems of vehicles. The system can reduce the speed of the vehicle and keep the vehicle stable when going downhill. Friction between brake disc and pads or shoes during driving creates small particles that are released into the atmosphere, soil and rivers. The particles have different dimensions, some element or matter inside maybe harmful to human and environment. So it is very important to know more about the non-exhaust brake emission. Here, we focus on the specification of GRPE-81-12 “Non-Exhaust Brake Emissions – Laboratory testing – Part 1: Inertia Dynamometer Protocol to Measure and Characterise Brake Emissions Using the WLTP-Brake Cycle” and do the detailed interpretation.

scholarly journals Stabilitas Tanah Timbunan Sisi BH-1 Proyek Jalan Akses Pembangunan Jembatan Pulau Balang II

2022 ◽  
Vol 10 (1) ◽  
pp. 1-10
Author(s):  
Juandra Hartono ◽  
Umi Khoiroh ◽  
Muhammad Saleh
Keyword(s):  
Ground Water ◽  
Water Level ◽  
Soil Type ◽  
Laboratory Testing ◽  
Research Method ◽  
Ground Water Level ◽  
Original Condition ◽  
The Road ◽  
Side Slope ◽  
On The Road

Problem on the road access landfill at Balang Island II Bridge is the landslide at STA 23+025 on left side slope (BH-1) caused by a swamp pond on the roadside. The landfill that cutted into the swampy area made the water get stuck on one side (water could not flow to the original condition). The research method is the form of direct observation in the field which focuses on the results of information and laboratory testing which is then processed and analyzed. The analysis obtained that the soil type on the spot is clay with N-SPT 6 – 29. There are 2 alternatives solutions for the problem. First, if there is a ROW problem, the treatments are watercourse, adding counterweight, wooden pile under the landfill and one layer Geotextile PP 50 (initial ground water level on exsisting condition with 90,4 kPa loads). Second, if there is no ROW problem, the treatments are watercourse, adding counterweight, wooden pile under the landfill and one layer Geotextile PET 100 (initial ground water level on top of landfill with 90,4 kPa loads). Based on technical analysis, the second solution was chosen because it has bigger safety factor, smallest settlement value, and shorter time implementation. However it is still need more detail technical justification to strengthen the desicion.

scholarly journals OSCILLATION CONTROL OVER LIGHT DUTY CARS USING MAGNETIC SEMI-ACTIVE SHOCK ABSORBERS

Transport ◽  
2011 ◽  
Vol 26 (3) ◽  
pp. 284-289 ◽  
Author(s):  
István Zador ◽  
Ádám Török ◽  
István Vajda ◽  
László Palkovics
Keyword(s):  
Difficult Problem ◽  
The Body ◽  
Active Suspensions ◽  
The Road ◽  
Suspension Systems ◽  
Shock Absorbers ◽  
Oscillation Control ◽  
Steer By Wire ◽  
On The Road ◽  
Safety Systems

The present vehicles on the road are equipped with an extended range of actuators, sensors and software controlling dynamics. It is still a difficult problem to solve for a suspension system simultaneously holding the body of the car in comfort and executing requirements imposed for other safety systems like ABS, ESP, steer-by-wire etc. Passive suspension systems are unlikely to provide a solution, and therefore the introduction of semi-active suspensions in practical use is necessary. A possible solution could be a permanent magnetic (PM) synchronous tube generator that can operate as a controllable shock absorber parallel with energy recuperative operation. Design software is realized to calculate geometrical and electrical parameters for arbitrary vehicle suspension systems.

Observations on the Relation between Laboratory and Test-Stand Measurements of Tire Treads and Their Behavior on the Road

1956 ◽  
Vol 29 (3) ◽  
pp. 806-828
Author(s):  
W. Kern
Keyword(s):  
Laboratory Testing ◽  
Test Stand ◽  
Test Apparatus ◽  
Testing Technique ◽  
Elementary Processes ◽  
The Road ◽  
Road Roughness ◽  
Service Conditions ◽  
Construction Type ◽  
On The Road

Abstract The only way to get a complete picture of the characteristics of tire treads is to classify the tests according to the influence of the compound, construction, type of vehicle, and type of road. Only by adapting tests in the laboratory, on the test stand, and on the road to the nature and intensity of practical service conditions, can good correlation be expected. Laboratory tests show at most the effect of the compound and possibly that of the nature of the road (roughness) and that of the climate (temperature). It is reserved for test stand and road experiments to bring out those properties that are affected by the tread pattern and the type of vehicle. We see as an essential task of laboratory testing technique not so much the creation of new complicated laboratory testing apparatus, as in better and better analysis, using new measuring methods, of the action on tires on test stands and in service, in order from this to find improvements in the available test apparatus and to base these on definite unfalsified elementary processes. The knowledge of the practical conditions not only has the advantage of improving the correlation, but makes it possible even in advance to strive for a goal-seeking development aimed at bettering the tire characteristics, since then one knows in advance what conditions are involved.

scholarly journals Needs Analysis for the Development of a Training Module for Hypercontent Examination Emission Inspection at the Ministry of Transportation

2020 ◽  
Vol 4 (4) ◽  
pp. 322
Author(s):  
Galuh Indri Kusumawati ◽  
R.A. Murti Kusuma Wirasti ◽  
Dwi Kusumawardani
Keyword(s):  
Air Pollution ◽  
Needs Analysis ◽  
Exhaust Emission ◽  
Exhaust Gas ◽  
Gas Emissions ◽  
The Road ◽  
The Media ◽  
On The Road ◽  
Motorized Vehicles ◽  
Exhaust Gas Emissions

The main factor of air pollution in Indonesia is motorized vehicles. Motorized vehicles operating on the road will produce exhaust gas emissions which result in air pollution. In overcoming exhaust gas emissions in vehicles, the Ministry of Transportation conducts training for exhaust emission inspection, and conducts training at one of the technical implementation units, namely the Indonesian Land Transportation Polytechnic (PTDI) STTD. The purpose of this study was to conduct a needs analysis to develop a hyper content learning module for training on exhaust emission examinations, using the R&D (research and Development) method using the Derek Rowntree model. The hyper content module is a module that combines hypertext, hyperlinks, and hypermedia, and the media used in the form of video, QR code, YouTube, and cloud computing. With the development of the hyper content module, it is possible to improve the understanding and learning outcomes of training participants in studying exhaust emissions from vehicles when compared to conventional learning.

Introduction To The New Energy Efficient Class for Road Lighting In Indian Context

2021 ◽  
pp. 135-145
Author(s):  
Suddhasatwa Chakraborty ◽  
Saswati Mazumdar
Keyword(s):  
Energy Efficient ◽  
Lighting Design ◽  
Density Parameter ◽  
Lighting System ◽  
New Classification ◽  
The Road ◽  
Road Lighting ◽  
New Energy ◽  
On The Road ◽  
Indian Scenario

The assessment of energy consumption in the field of road lighting is different from other lighting applications. In this paper, a newly developed parameter is introduced for the proper assessment of energy efficiency for lighting design of Indian road. The basis of the proposed normalized power density parameter and the effects of few governing factors on it have been also discussed in detail. Those factors are governing measured and calculated based on the road lighting in Indian scenario. A new classification for energy efficient road lighting in Indian road has been introduced. This new proposed classification will help to determine whether a road lighting system is energy efficient or not.

scholarly journals Analysis of Vehicle Moving Parameters in Various Road Conditions

2021 ◽  
Vol 23 (3) ◽  
pp. F58-F70
Author(s):  
Rafał Jurecki ◽  
Tomasz Stańczyk
Keyword(s):  
Quality Parameters ◽  
Driver Education ◽  
The Road ◽  
Emergency Situations ◽  
Road Users ◽  
Active Safety Systems ◽  
The Difference ◽  
On The Road ◽  
Safety Systems ◽  
Traffic Organization

The safety of road users is one of the priority issues raised by those involved in vehicle design, latest passive and active safety systems, traffic organization or driver education. Nowadays, an important road safety problem is the behaviour of drivers in emergency situations. In order to measurably estimate the driving quality, parameters such as velocity, acceleration, the way and frequency of using the control pedals are quite often used. This article describes how to assess driver's behaviour based on measurements taken on the road. The frequency of different acceleration ranges during the vehicle drive was determined based on the results obtained. For the arbitrarily adopted acceleration range of - 0.5 - 0.5 m/s2, the driver's working time was over 77 percent on average, with the difference varying significantly between different route sections. Similarly, the study compares the driving times for other ranges of acceleration.  

scholarly journals The WYP2005 for physics on the road to extinction

2005 ◽  
Vol 04 (04) ◽  
pp. F01
Author(s):  
Marzia Mazzonetto ◽  
Maria Chiara Montani
Keyword(s):  
Video Games ◽  
Art Museums ◽  
Energy Sources ◽  
Global Pollution ◽  
University Campuses ◽  
The Road ◽  
The World ◽  
New Energy ◽  
Theatrical Performances ◽  
On The Road

From exhibitions to theatrical performances, from fireworks to video games, countless events and ventures have been held all over the world in 2005 to mark the occasion of the World Year of Physics (WYP2005). The year that is drawing to a close has brought physics out into the streets and University campuses, but in a few cases physics has even invaded theater stages and art museums, it has involved musicians and even architects. The worldwide objective was to highlight a science that has more and more need to communicate its close connections with society, its involvement in themes that are vital for the present day but above all for the future, like the frontiers of medicine, the reduction of global pollution and the search for new energy sources. This focus tries to discover, country by country, the events that have accompanied the World Year of Physics. But this will also be an attempt to reply to a question on the very nature of this type of event: “do we really need it”? Is a World Year of Physics really necessary and, above all, is it effective?

scholarly journals Representativeness of emissions of toxic substances in bench tests reflecting the road traffic conditions of a vehicle

2019 ◽  
Vol 177 (2) ◽  
pp. 88-90
Author(s):  
Piotr WIŚNIOWSKI ◽  
Maciej GIS
Keyword(s):  
Road Traffic ◽  
Exhaust Emission ◽  
Toxic Substances ◽  
Bench Tests ◽  
The Road ◽  
Traffic Conditions ◽  
Emission Component ◽  
Stationary Test ◽  
On The Road ◽  
Work Done

The results of measurements of exhaust emissions in real road traffic differ significantly from the results of stationary homologation tests. One of the solutions, helpful in determining the actual emission, is the creation of stationary exhaust emission tests simulating the use of the vehicle on the road. The article presents the method of reconstructing the synthetic driving test obtained on the basis of road tests and presents the obtained profile of the speed course. The authors discussed the reasonableness of selecting the emission component determining the correctness of the representativity of the stationary test obtained, which determines the amount of work done by the engine.

Aspects Regarding the Disc Brake's Thermal Stress Simulation by Using Infrared Thermography

2012 ◽  
Vol 463-464 ◽  
pp. 1197-1201
Author(s):  
Catalin Spulber ◽  
Ştefan Voloacă
Keyword(s):  
Thermal Stress ◽  
Test Bench ◽  
Simulation Method ◽  
Brake Disc ◽  
The Road ◽  
Heating Source ◽  
A Value ◽  
Different Temperatures ◽  
On The Road ◽  
Stress Simulation

The paper proposes a new simulation method of a brake disc thermal stress resistance, for different temperatures, by interactive processing of images obtained by thermography. Temperature evaluation for different working regimes can be made by recording and processing thermograms of a brake disc heated inside the laboratory by an external heating source. Taken pictures along the temperature variation, from the ambient value to a value close to real one obtained on the usual experiments, are processed using image analyse software. This way can be simulated different working regimes (temperature, humidity etc.) without the need of experimental determination on the road or on a test bench.

Sign in / Sign up

Export Citation Format

Share Document