Influence of the Braking System that is Contrary to Legislation on Breaking Characteristics of Passenger Car

Abstract

There are also the vehicles among the other vehicles in road traffic that have been modified without being authorised by their producer. These also include modifications such as structural modifications in the vehicle break system. Besides a brake system of road motor vehicles is one of the main factors influencing the active safety of vehicles. The design of the brake system, its technical condition and additional intervention in its construction may have a positive as well as negative impact on the braking distance length and the value of the mean braking deceleration achieved. The paper focuses on the influence of the brake disc diameter of the front axle on the achieved value of the mean braking deceleration and the braking distance length, while the braking system has been modified for several times without being approved by car manufacturer. The introductory part of the paper describes the braking distance sections and it also explains the term of mean braking deceleration. The following part of the paper deals with the measurement methodology, measuring equipment and the vehicle used during the measurements as well as procedures employed. The results obtained from the measurements are processed and presented in tables and also in graphs for greater clarity. The final part of the paper summarizes and evaluates the measured results. The importance of the paper lies in quantification of the influence of brake discs with different diameters on the vehicle active safety in the case of a particular vehicle.

Comparison of braking properties of selected vehicle with different methods

“…Once the software is installed on the PC, data transfer between the computer and the XL Meter TM Pro is secured using a standard USB cable [17]. The goal of the XL Vision TM program is to offer full-fledged computer evaluations of the acceleration and deceleration of various vehicles.…”

Braking Characteristics of the Specified Modern Electric Vehicle During Intensive Braking

“…The electronic system of the device continuously records the values of the output signal voltage during the measurement, with the sampling rate of 200 Hz, i.e. the values are measured and recorded every 5 ms [3,4]. The device records the course of acceleration within a span of 80 seconds from the moment of being turned on.…”

“…The brake system fundamentally affects the level of vehicle active safety [4]. The design and technical condition of the brake system, together with tyres [1] and other factors, such as the road surface and the slope [3,6], influence the directional stability of a vehicle during the braking, and the braking distance length [3]. The braking distance represents the distance which is travelled by a vehicle from the moment of pressing the brake pedal till the vehicle stops, or till the moment when the driver stops applying the brake pedal [3,5].…”

55TiO2-Cr2O3 Kaplamanın Frenleme Performansına Etkisinin Araştırılması

“…Test müddetince sıcaklık etkinliğinde temassız termometre ile ölçülen orijinal diske ait en yüksek sıcaklık 286 °C gerçekleşirken kaplanmış diskte 338 °C olarak gerçekleşmiştir. Kaplamalarda yükün artmasıyla sürtünme katsayısı düşmektedir [49][50][51]. Kayma hızı arttığı zaman aşınma miktarı da artmaktadır [52].…”