Classification of the road surface condition on the basis of vibrations of the sprung mass in a passenger car

Prażnowski, Krzysztof; Mamala, Jarosław

doi:10.1088/1757-899x/148/1/012022

Cited by 16 publications

(12 citation statements)

References 1 publication

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“…Roads are characterized by a variety of parameters: texture, longitudinal, transversal and vertical unevenness, horizontal curvature and so on (Prażnowski, Mamala 2016). In the current study, we did not attempt to evaluate each type of road unevenness.…”

Section: Methodsmentioning

confidence: 99%

“…This kind of research is scarce. Some reported investigations on the road parameters and ways to automatically determine them as well as the quality of the entire road (Prażnowski, Mamala 2016). Others investigated the relationship between quality of the road and fuel expenditure, as well as finding ways to adjust the chassis of the vehicle to the road parameters for improved safety (Dabrowski, Slaski 2016).…”

Section: Introductionmentioning

confidence: 99%

“…There are also studies on the effect of road conditions on human health (Granlund 2008). There are many parameters to describe the road quality (Prażnowski, Mamala 2016). In the current study, we categorize the roads into three groups based on the accelerometer data from the mobile device: having small unevenness, moderate unevenness and large unevenness.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Study of Road Conditions that Affect Tilt-based Text Input for Mobile Devices

Miniotas

Katkevičius

Plonis

2017

Science - Future of Lithuania

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abstract. With the rapid advances in technology of mobile devices, their application areas expand continuously as well. Given the growth of the market share for mobile devices, one of the main issues that arise is the need for new and convenient techniques for data input and output suitable for various settings. Tilt-based text input is one of the alternatives that attract attention of current researchers. This study investigates the potential of using tilt-based interaction to enter text while sitting as a passenger in a moving vehicle. In addition, the investigation focused on the characteristics of the road as well as driving conditions that affect tilt-based text input. The study manipulated the following factors: keyboard size 10×4 and road unevenness (small, moderate, and large). 14 participants, aged 25 to 50, took part in the user study. The best performance and the shortest task completion time equal to 24.5 seconds was observed when the vehicle was moving at a constant speed on a straight road with small unevenness. The task completion time increased by 15% in moderate unevenness road and by almost 20 % in large unevenness road. Error rate and movement efficiency were investigated additionally in order to find out the cause of such times.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Study of Road Conditions that Affect Tilt-based Text Input for Mobile Devices

Miniotas

Katkevičius

Plonis

2017

Science - Future of Lithuania

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“…The push towards this practice is still growing, as road transport is considered one of the major sources of pollution in the European Union. Currently, efforts are being made to introduce such emission testing procedures, which would extend to include the operating range of the engine used in real driving conditions [4,5]. This is in contradiction to the previous testing procedures, where the exhaust emission values are measured in laboratory conditions (on chassis dynamometer for passenger cars) in the adopted type approval test [6][7][8][9].…”

Section: Road Driving Emission Tests Requirementsmentioning

confidence: 99%

Practicability of passenger vehicle driving emission tests according to new European Union procedures

2017

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Abstract. The article compares driving test data using the latest legislative proposals applicable to passenger cars. Several measurements were performed on the same test route in accordance with the RDE test guidelines, which requires a number of criteria to be met. These criteria include: the length of the measuring segments, their overall test time share, and the dynamic characteristics of the drive. A mobile device for reading the EOBD System information was used to record the engine and vehicle operating parameters during tests. This allowed for the monitoring of parameters such as: load value, engine speed and vehicle velocity. The obtained results were then analyzed for their compatibility with the RDE procedure requirements. Despite the same research route, the obtained results were not the same. The analysis also uses the two-dimensional operating time share characteristics expressed in vehicle velocity and acceleration co-ordinates. As a result it was possible to compare the dynamic properties, share of operating time and, consequently, to check the validity of conducted drive tests in terms of their practicability and emission values.

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“…Most important from the perspective of reliability of the assessment are two issues: the degree of simplicity adopted in emission modeling and sources of emission data. In the second case, they may be: homologation data, emission factors as a function of the mass of consumed fuel, road measurements and simulation evaluations of road infrastructure [5,6]. Increasingly popular are the Real Driving Emissions measurements of vehicles in which actual emissions of harmful emissions are known.…”

Section: Introductionmentioning

confidence: 99%

Comparison of exhaust emission on the basis of Real Driving Emissions measurements and simulations

Nowak

2017

MATEC Web Conf.

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Abstract. Designing of modern transport systems involves the need to meet a large number of requirements. The influence of designed road infrastructure on the environment is very wide and important. The most valid aspect in this case is the reduction of emissions of harmful compounds by increasing the fluency of vehicles flow and building collision free road intersections. But it should be started from establishing the initial emission level of harmful compounds. This paper presents a methodology for determining exhaust emissions from vehicles moving on the national road no. 50 in area of Zyrardow. Modern measuring tools such as the PEMS and the microscopic road simulation software, using the application to determine exhaust emissions, were used for this purpose.

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Classification of the road surface condition on the basis of vibrations of the sprung mass in a passenger car

Cited by 16 publications

References 1 publication

The Study of Road Conditions that Affect Tilt-based Text Input for Mobile Devices

The Study of Road Conditions that Affect Tilt-based Text Input for Mobile Devices

Practicability of passenger vehicle driving emission tests according to new European Union procedures

Comparison of exhaust emission on the basis of Real Driving Emissions measurements and simulations

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