Search Results

You are looking at 1 - 3 of 3 items for

  • Author: Ján Ondruš x
Clear All Modify Search
Open access

Ján Ondruš and Peter Hockicko

Abstract

This contribution deals with the issue of car braking, particularly with the one of M1 category. Braking deceleration measurement of the vehicle Mazda 3 MPS was carried out by the declerograph XL MeterTM Pro. The main aim of the contribution is to perform comparison of the process of braking deceleration between the decelograph and the new alternative method of video analysis and to subsequently examine these processes. The test took place at the Rosina airfield, the airstrip in a small village nearby the town of Žilina. The last part of this paper presents the results, evlauation and comparison of the measurements carried out.

Open access

Ján Ondruš and Jana Dicová

Abstract

The basic aim of managers in transport is to preserve and expand their share of the transport market. This should be done through prioritising quality and customer service, preservation and expansion field of transport enterprise activity to transport market on the basic of priority orientation to quality and customer, maintaining transport networks and applying the latest knowledge from research. It should also involve making a contribution to favourable indicators of economic activity, and a consideration of environmental change. This paper deals with customer requirements, the possibility of quantifying customer requirements and the recognition of future trends on the basis of assessments of recent quantitative results and the application of managers’ knowledge and techniques.

Open access

Ján Ondruš, Pavol Kohút, Rastislav Jurina and Klaus - Dieter Brösdorf

Abstract

The article deals with issues of vehicle braking from different points of view. We made repeated braking tests of modern vehicles during intensive braking on various asphalt surfaces with the goal to evaluate character of this random variable. We dedicated our attention also to the accuracy attainable using various measuring methods and equipment. Within measurement of braking deceleration we used low-end measuring device (mobile smartphone) and measuring devices most used in Slovakia (XL Meter™ Pro Gamma). The collected data were processed in the software XL Vision and evaluated by SW PC-Crash 10.9. Usable result from article is mainly measurement set of braking deceleration of current modern vehicles during intensive braking on various asphalt surfaces as well as evaluation of accuracy levels with respect to various used devices.