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  • Transport Problems

 

research-article | 23-April-2019

A STUDY OF THE FUEL CONSUMPTION OF HYBRID CAR TOYOTA YARIS

. Moreover, similar effect exists for inter-city conditions. That is one of the main advantages of hybrid cars because in city conditions, up to 50 km/h, the motion is realized using only electric energy from the battery. In some studies [4, 6, 7, 12, 13, 16], there are verifications that a hybrid car has advantages vs gasoline car, even vs diesel car, especially in urban conditions. The fuel consumption in inter-city conditions is not well studied. Currently, the studies on the fuel consumption of

Yavor IVANOV, Rosen IVANOV, Georgi KADIKYANOV, Gergana STANEVA, Igor DANILOV

Transport Problems, Volume 14 , ISSUE 1, 155–167

Research Article | 02-February-2017

ACTION AS A CRITERION OF THE CAR OPERATING EFFECTIVENES

Summary. Currently used criteria for determining car operating efficiency in road traffic are, among others, emission of harmful substances, consumption of engine driving fuels, technical service and reliability of operation, safety of use. The operational characteristics of the car in terms of engine driving fuel consumption data is usually recognised as so-called road specific fuel consumption. An important deficiency of this approach is the failure to take into

Stefan POSTRZEDNIK

Transport Problems, Volume 11 , ISSUE 2, 91–101

Article | 15-March-2021

EMISSIONS FROM A MEDIUM-DUTY CRDI ENGINE FUELLED WITH DIESEL–BIODIESEL BLENDS

conducted at two engine rotational speeds (1500 and 3000 rpm, respectively) and a set of load conditions (50, 100, and 200 Nm, respectively). The tests focused on engine efficiency parameters (brake-specific fuel consumption and brake fuel conversion efficiency) as well as exhaust gas emissions (hydrocarbons, carbon monoxide, and carbon dioxide were determined). The obtained results indicate that blends containing biocomponents produced from pork lard were characterized by superior fuel consumption and

Kamil DUDA, Sławomir WIERZBICKI, Maciej MIKULSKI, Łukasz KONIECZNY, Bogusław ŁAZARZ, Magdalena LETUŃ-ŁĄTKA

Transport Problems, Volume 16 , ISSUE 1, 39–49

Article | 31-July-2018

DYNAMIC REGULATION OF THE PERCENTAGE COMPOSITION OF THE MIX DIESEL AND BIODIESEL FUEL

The use of internal combustion engines increase environmental pollution and dependence on fossil fuels. The biodiesel fuel, which is renewable, more environment friendly, and cheaper, is a good alternative for diesel engines. The use of biodiesel fuel leads to a drop in diesel power and an increase in fuel consumption. To prevent these shortcomings, it is proposed to use dynamic regulation of the percentage composition of a mixture of diesel and biodiesel fuel. The modernization of diesel

Orest Horbay, Andrii Poliakov, Mykola Hrechaniuk, Inna Vishtak

Transport Problems, Volume 13 , ISSUE 2, 59–67

Article | 04-November-2019

CONTROLLING OF TRAIN’S INTERIOR HEATING SYSTEM FOR MAXIMUM ENERGY EFFICIENCY

Heating systems in diesel multiple unit (DMU) trains often use additional mechanical and/or electrical auxiliary power, increasing fuel consumption, while waste heat is available from the diesel engine. Delivery of waste heat for heating of multiple carriages is analysed as realized in DR1 and D1 series trains, in light of the current standards of passenger comfort and in-depth testing of DR1B trains. A new hybrid hot air and electrical heating system and its control algorithm is reviewed for

Dāvis BUŠS, Jānis EIDUKS

Transport Problems, Volume 14 , ISSUE 3, 121–134

Article | 31-December-2020

DRIVING STYLE ANALYSIS AND DRIVER CLASSIFICATION USING OBD DATA OF A HYBRID ELECTRIC VEHICLE

and ecological safety. Relations between the type of driver, driving dynamics, and fuel consumption were studied. The driver's categorization was based on a statistical analysis of input signals and mean tractive force (MTF) by clustering.

Andrzej PUCHALSKI, Iwona KOMORSKA

Transport Problems, Volume 15 , ISSUE 4, Part 1, 83–94

Article | 18-March-2018

INCREASING REDUCTION OF CO2 EMISSION IN HYBRID VEHICLES

energy and ecological benefits. Computational formulas of CO2 emission savings and calculated fuel consumption and percentage reduction of CO2 proposed by the authors were used as a confirmation. Average worktime of lighting and three configurations of sources of lighting of hybrid vehicles were used in the analysis: halogen bulb/bulb, xenon/LED lamp and full electroluminescent external lighting.

Zbigniew ŁUKASIK, Jacek KOZYRA, Aldona KUŚMIŃSKA-FIJAŁKOWSKA

Transport Problems, Volume 12 , ISSUE SE, 87–94

Research Article | 24-October-2017

IMPACT OF ROAD GEOMETRY ON VEHICLE ENERGY CONSUMPTION

It has been shown that road geometry has a great impact on overall energy consumption and emissions. Some roads connect traffic origins and destinations directly. On the other hand, some use winding, indirect routes. Indirect connections result in longer distances driven and increased fuel consumption. A similar effect is observed on congested roads and mountain roads with many changes in altitude. Therefore, we propose a framework to assess road networks based on energy consumption. This

Blaž LUIN, Stojan PETELIN

Transport Problems, Volume 12 , ISSUE 2, 77–87

Research Article | 21-April-2017

RESEARCH OF IMPACT OF THE LOADING ON ENDURANCE OF THE FREIGHT LOCOMOTIVE ENGINES

has been created, as well as a programme complex of mathematic modelling. The differences of the results indicated in the experiment and modelled by computer do not exceed 5 ÷ 7%. The proposed and described methodology of the diesel locomotive exploitation load cycle dynamic indicator reduction, by the use of which the following is achieved: increase of the diesel work duration by 7÷10%, reduction of fuel consumption up to 10%, reduction of the load cycle dynamic indicators (increasing the fatigue

Sergejus LEBEDEVAS, Galina LEBEDEVA, Stasys DAILYDKA, Gediminas VAIČIŪNAS

Transport Problems, Volume 10 , ISSUE 4, 45–55

Case Study | 04-November-2019

THE IMPACT OF TRAILER CONDITIONS ON THE QUALITY OF REFRIGERATED FOOD TRANSPORT SERVICES – A CASE STUDY

via a wireless device can contribute to the reduction of fuel costs in the enterprise, e.g., detection with vibration sensor / acceleration of aggressive driving style of the driver causing suspended fuel consumption, detection of inappropriate transport conditions, etc. Analysis of the test results showed that in the same trailer the product distribution is very important owing to the different temperature. The analysis carried out showed that in the middle of the semitrailer, i.e. in the place

Teresa GAJEWSKA, Augustyn LORENC

Transport Problems, Volume 14 , ISSUE 3, 97–108

Article | 05-September-2020

LIFE CYCLE ASSESSMENT OF FUEL CELLS ELECTRIC VEHICLES

technologies of hydrogen (H2), is carried out. Life cycle assessment (LCA) method is used. A comparison, concerning fuel consumption and emissions as CO2 equivalent for the whole life cycle, is done for FCEV and conventional gasoline vehicle (GV). The influence of the energy mix and technology of production of hydrogen on spent energy and air pollution is analyzed. As the results show, in countries with CO2 emissions over 447 g per 1 kWh electricity, the technology of hydrogen production from natural gas

Ivan EVTIMOV, Rosen IVANOV, Hristo STANCHEV, Georgi KADIKYANOV, Gergana STANEVA

Transport Problems, Volume 15 , ISSUE 3, 153–166

Research Article | 02-February-2017

Signal Controlled Junctions Calculations in Traffic-Capacity Assessment - Aimsun, Omnitrans, Webster and TP 10/2010 Results Comparison

Every increase in traffic volume on road network in towns can lead to overcrowding of road network. This results in undesirable external costs such as traffic congestions, which cause high loses in time during transportation, increased fuel consumption and thus higher production of greenhouse gases and noise. This all ultimately reduces the attractiveness of the area. The increase of traffic volume and therefrom derived traffic problems are needed to be solved during traffic-capacity assessment

Ľubomír ČERNICKÝ, Alica KALAŠOVÁ, Ján KAPUSTA

Transport Problems, Volume 11 , ISSUE 1, 121–130

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