scholarly journals The verification of ECU calibrations of a 1.3 Multijet engine on a chassis dynamometer

2008 ◽  
Vol 135 (4) ◽  
pp. 14-21
Author(s):  
Jerzy MERKISZ ◽  
Piotr ŚWIĄTEK
Keyword(s):  
Load Distribution ◽  
Exhaust Emissions ◽  
Operating Parameters ◽  
Engine Test ◽  
Passenger Vehicle ◽  
Chassis Dynamometer ◽  
Test Bed ◽  
Engine Load ◽  
Driving Cycles ◽  
Vehicle Engine

One of the basic purposes of passenger vehicle engine tests on a chassis dynamometer is to verify the results of the tests carried out on engine test beds in terms of the ECU parameters. The paper presents the analysis of the engine load distribution in driving cycles both European and American. The issue of the influence of selected calibrations of a 1.3 Multijet engine on its operating parameters and the exhaust emissions has been presented. The realization of the project consisted in performing a series of tests on a chassis dynamometer for selected ECU calibrations determined during the engine test bed phase.

scholarly journals Operating parameters of a passenger vehicle turbocharged spark ignition engine in conditions of exhaust leakage simulation

2018 ◽  
Vol 19 (6) ◽  
pp. 463-467
Author(s):  
Krystian Hennek ◽  
Mariusz Graba
Keyword(s):  
Oxygen Sensor ◽  
Exhaust System ◽  
Combustion Products ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Oxidation Products ◽  
Operating Parameters ◽  
Passenger Vehicle ◽  
Chassis Dynamometer ◽  
Excess Air

Paper discussed the influence of exhaust system leakage on the utility parameters and toxic combustion products emission of a turbocharged passenger car spark ignition engine. A comparative analysis of the data gathered in the research carried out using the MAHA MSR 500 single roller chassis dynamometer was conducted, where the exhaust system was sealed and leaking in the area of the wideband oxygen sensor mounting bracket. The presented data refers to among others: the emissions of harmful gasoline oxidation products (HC, CO), the courses of power generated by the engine and the momentary values of excess air ratio. The EUDC driving cycle was used in the research.

scholarly journals A concept of a turbocharger test stand

2014 ◽  
Vol 156 (1) ◽  
pp. 30-40
Author(s):  
Marek IDZIOR ◽  
Wojciech KARPIUK ◽  
Maciej BIELIŃSKI ◽  
Tomasz BOROWCZYK ◽  
Paweł DASZKIEWICZ ◽  
...  
Keyword(s):  
Test Stand ◽  
Exhaust Gas ◽  
Engine Test ◽  
Passenger Vehicle ◽  
Test Bed ◽  
Gas Generator ◽  
Technical Parameters ◽  
Basic Parameters ◽  
Validation Tests

The paper presents selected possibilities of vehicle turbocharger testing using an exhaust gas generator (based on a passenger vehicle) designed in the laboratory on the engine test bed. An outline of the range of turbocharger testing, the design and main characteristics of the test stand have been described. Several validation tests have been presented in terms of the technical parameters, operativeness, and functionality. Basic parameters of the engine have been analyzed that have impact on the turbocharger speed.

scholarly journals A Secured Load Mitigation and Distribution Scheme for Securing SIP Server

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Vennila Ganesan ◽  
Manikandan MSK
Keyword(s):  
Load Distribution ◽  
Test Bed ◽  
Heavy Load ◽  
Server Selection ◽  
Distribution Scheme ◽  
The Mean ◽  
Sip Server ◽  
Second Tier ◽  
Termination Time

Managing the performance of the Session Initiation Protocol (SIP) server under heavy load conditions is a critical task in a Voice over Internet Protocol (VoIP) network. In this paper, a two-tier model is proposed for the security, load mitigation, and distribution issues of the SIP server. In the first tier, the proposed handler segregates and drops the malicious traffic. The second tier provides a uniform load of distribution, using the least session termination time (LSTT) algorithm. Besides, the mean session termination time is minimized by reducing the waiting time of the SIP messages. Efficiency of the LSTT algorithm is evaluated through the experimental test bed by considering with and without a handler. The experimental results establish that the proposed two-tier model improves the throughput and the CPU utilization. It also reduces the response time and error rate while preserving the quality of multimedia session delivery. This two-tier model provides robust security, dynamic load distribution, appropriate server selection, and session synchronization.

scholarly journals Determining the route for the purpose light vehicles testing in Real Driving Emissions (RDE) test

2019 ◽  
Vol 178 (3) ◽  
pp. 61-66
Author(s):  
Wojciech GIS ◽  
Jacek PIELECHA ◽  
Jerzy MERKISZ ◽  
Stanisław KRUCZYŃSKI ◽  
Maciej GIS
Keyword(s):  
Exhaust Emissions ◽  
Hybrid Vehicles ◽  
Spark Ignition Engine ◽  
Chassis Dynamometer ◽  
Driving Dynamic ◽  
External Temperature ◽  
Vehicle Load ◽  
Urban Rural ◽  
Test Route ◽  
Research Centres

In the regulations concerning approval of light vehicles starting from September 2019 it will be necessary to conduct exhaust emis-sions tests both on a chassis dynamometer and for real driving emissions. It is a legislative requirement set forth in EU regulations for the purpose of the RDE (Real Driving Emissions) procedure. To decide on the RDE route for the purpose of the LV exhaust emissions tests many requirements must be fulfilled, regarding for ex-ample external temperature and the topographic height of the tests, driving style (driving dynamic parameters), trip duration, length of respective test sections (urban, rural, motorway, etc.). The works on outlining RDE routes are continued across the country in various research centres. Specifying the RDE route for test purposes, i.e. works in which the authors of this article are actively involved, has become a major challenge for future approval surveys concerning the assessment of hazardous emissions from light vehicles and for development studies focusing on – for example – the consumption of energy in electric and hybrid vehicles. The vehicle load was consistent with the requirements of the standard and included the aforesaid measurement device, the driver and the operator of PEMS. The tests were carried out on working days. The streets and roads used for the tests were hard-surfaced. Meas-urements were performed in accordance with the requirements of RDE packages (Package 1–4), i.e. taking into account – among others the engine cold start. The article discusses the method of outlining the test route fulfilling the specific requirements for RDE testing. Chosen results of ex-haust emissions from a passenger car with a spark-ignition engine along the defined RDE test route have been provided. The tests discussed in the article are introductory in the area of RDE tests and provide an introduction into further studies of exhaust emissions and energy consumption in real driving conditions in conventional vehicles and vehicles with alternative engines, e.g. hybrid and electric vehicles.

scholarly journals Correction to: The Analysis of Exhaust Gas Thermal Energy Recovery Through a TEG Generator in City Traffic Conditions Reproduced on a Dynamic Engine Test Bed

2018 ◽  
Vol 47 (5) ◽  
pp. 3059-3059 ◽  
Author(s):  
Jerzy Merkisz ◽  
Pawel Fuc ◽  
Piotr Lijewski ◽  
Andrzej Ziolkowski ◽  
Krzysztof T. Wojciechowski
Keyword(s):  
Thermal Energy ◽  
Energy Recovery ◽  
Exhaust Gas ◽  
Engine Test ◽  
Test Bed ◽  
Traffic Conditions

scholarly journals Repeatability of High-Pressure Measurement in a Diesel Engine Test Bed

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3478 ◽  
Author(s):  
Tomasz Skrzek ◽  
Mirosław Rucki ◽  
Krzysztof Górski ◽  
Jonas Matijošius ◽  
Dalibor Barta ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Pressure Measurement ◽  
Ignition Process ◽  
Engine Test ◽  
Cylinder Pressure ◽  
Test Bed ◽  
Working Cycle ◽  
Crank Angle ◽  
Maximal Pressure ◽  
Measured Pressure

This paper addresses the issue of metrological accuracy of instantaneous in-cylinder pressure measurement in a diesel engine test bed. In studies, the central unit has been the single-cylinder AVL 5402 engine. The pressure measurement was performed with a sensor designed for thermodynamic analysis, and the results were related to the crank angle, where two rotations corresponding to the four-stroke working cycle were denoted as angles between −360° and +360°. The novelty of this paper is the proposition of how to perform a type A uncertainty estimation of the in-cylinder pressure measurement and to assess its repeatability. It was demonstrated that repeatability of the measurement during the ignition process was difficult to estimate because of the phenomena that cannot ensure the repeatability conditions. To solve the problem, two methods were proposed. In one method, the pressure was measured in the subsequent cycles immediately after the ignition was turned off, and in another method, the engine was driven by a starter. The latter method provided maximal pressure values much lower than during usual tests. The obtained repeatability of measured pressure was %EV = 0.4%, which proved high capability of the evaluated measurement system.

Integrated ECU-test on the engine test bed

MTZ worldwide ◽  
2006 ◽  
Vol 67 (7-8) ◽  
pp. 29-32
Author(s):  
Gerald Gaberscik ◽  
Rudolf Gurtner ◽  
Werner Tripolt
Keyword(s):  
Engine Test ◽  
Test Bed

Finite Element Analysis of a Certain Tracked Vehicle Engine Compartment Test-Bed Support

2012 ◽  
Vol 424-425 ◽  
pp. 1191-1194
Author(s):  
De Li Cui ◽  
Kuo Jiang ◽  
Su Li Feng ◽  
Xu Hua Zhai
Keyword(s):  
Finite Element Analysis ◽  
Strain State ◽  
Engine Compartment ◽  
Test Bed ◽  
Operation Condition ◽  
Tracked Vehicle ◽  
Element Analysis ◽  
Vehicle Engine ◽  
D Model ◽  
Model Strain

This paper uses solidworks software to build 3-D model of a certain tracked vehicle engine compartment test-bed support, then analyzed the model strain state and mode under typical operation condition by ANSYS. It is calculated that the support can meet the design demand.

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