The results of testing the ignition properties fuels in form blends diesel oil with pyrolysis produced from tires, used as an additive at concentrations 0, 5, 7, 10, 15, and 20% m/m, are presented this paper. experiment included preparation distillation curves determination flash points, derived cetane number, calculated ratios. related to limits indicated selected standards regulations on requirements for marine- land-based compression engine fuels. obtained show suitability possibility its...

This research presents the impact of diesel blends with tire pyrolysis oil (TPO) as an additive for minimizing wear and tear engine components. study investigates normative TPO content ranging from 5% m/m to 20% m/m. Reference measurements are made pure (D100) TPO. investigation included evaluation corrosion effect fuels tested on abrasive wear. For each fuel, sulfur content, water lubricity (which is defined corrected average diameter trace during high-frequency reciprocating rig (HFRR)...

The aim of the article is to present impact blending diesel fuel with tire pyrolysis (TPO) oil on changes in fuel’s rheological properties and evaluate these context meeting legal requirements for various types fuels. This research presents normative D100 TPO as an admixture blends. Measurements are made content blend equal 5, 7, 10, 15, 20% m/m. In addition, reference measurements pure pyrolytic oil. Kinematic viscosity density, dynamic viscosity, index, pour point, cloud cold filter...

Abstract The work concerns the study of influence driver’s cabin and tire pressure settings on driving comfort in a semi-trailer tractor, assessed by analyzing vibrations at base seat during transport mining spoil. following configurations were considered: tractor with nominal height settings, raised cabin, increased pressure. Driving was based difference between maximum minimum vertical acceleration determined RMS (Root Mean Square) PSD (Power Spectral Density) indicators. From ride...

The objective of this work is to assess the possibility driving unmanned vehicles in a convoy, depending on vehicle type (wheeled or tracked, level 0, according SAE J3016), and mutual coincidence with human-controlled accordance scenario adopted. assessment based tests carried out while along designated route measuring physical quantities that describe vehicles’ motion, such as components velocity vectors distances between vehicles. were safe training ground, using inertial-satellite devices...

Experiment studies focus on increasing active safety (steerability and stability) of the combination vehicles (car with a trailer). The aim conducted is in motion autonomous trailer via creating algorithm functioning system which facilitates forecasting possibility dangerous behaviour occurrence for during complex road manoeuvres at high velocity. Within this scope will ensure collecting data from environment, selection (detecting situation requires reaction), as well joining information...

The introduction of autonomous cars will help to improve road traffic safety, and the use a cargo trailer improves energy efficiency transport. One critical (collision) situations has been considered, where immediate counteraction is required in space that only partly defined. This research work was aimed at determining impact trajectory planning method values some parameters control system on feasibility safe avoidance an obstacle suddenly appeared. assumed be motor vehicle moving...

The motorcyclist’s body motion following a motorcycle impact against motor car side is determined by system of forces and reactions acting on the rider’s body. An analysis this was carried out, based research experiment. related measurements calculations were taken as basis for an dynamic loads; they also indicated type scope bodily injuries that may be incurred motorcyclist during road accident. Based experiment, trajectory head torso course contact between determined. acceleration values...

Front-to-side collisions of motor vehicles very often occur on Polish roads. Every fourth road accident may be defined as a collision this kind between moving vehicles. The analysis effects, including the reconstruction process, is usually based results measurements post-accident vehicle deformation and information about body stiffness. Unfortunately, characteristic curves that would represent car side hardly available.

The paper concerns an analysis of the steerability and stability a motor vehicle towing trailer during double lane change manoeuvre. As results experimental road tests carried out on airfield runway, time histories following parameters were determined: steering angle, lateral acceleration, drift angle vehicle, as well angular velocity yaw. performed for various states vertical load exerted vehicle's coupling device.

The paper covers both experimental tests and analytical calculations.The calculations were based on a frame-by-frame analysis of video record the experiment results measurements motorcyclist, motorcycle, car acceleration vector components.They enabled determining forces that acted in areas contact between motorcycle motorcyclist with vehicle during collision.A few experiments carried out, which included physical reconstruction road accident where frontally hit motor side related laboratory...

Numerical data about road accidents, collected in monthly steps, were used to build a time series.The series, covering the years 2010-2016 and 16 regions, was analysed identify some time-dependent regional circumstances that cause high variability number of accidents annual cycles.In consideration nature these data, they have been described with taking into account trends as well random cyclic variations related annually repeating changes.In process clearing series trend component,...

Abstract The paper compares the displacement and speed courses of cars, motorbikes motorcyclists during a road accident obtained with use two measurement methods. In first method, course impact recorded by fast camera recording 1000 frames per second was used (“frame frame” film analysis). accelerations angular velocities objects were (numerical integration courses). measurements carried out crash tests involving frontal-side collision cars or motorcycle car. results has been shown in time...

The paper indicated the results of vehicle motion trajectory calculations determined on basis recorded waveforms acceleration vector and angular velocity components during double lane change maneuver, taking into account errors sensors reset (zeroing). For sake simplicity, it was assumed that zeroing apply only to linear sensors, while show exact values at time t = 0 s (when starting maneuver). During analysis experimental research, kinematics model used, in which right-handed coordinate...

Abstract The paper compares the results of vehicle motion trajectory calculations determined on basis recorded waveforms acceleration vector and angular velocity components during double lane change maneuver, taking into account errors sensors reset (zeroing). differences in were possible causes these indicated. test indicate that special attention should be paid to zeroing sensors, particular a y component.