Driver alertness monitoring system in the context of safety increasing and sustainable energy use

Road transport is an important factor in carbon dioxide emissions. These emissions can be reduced by improving propulsion sources and traffic flow (avoiding traffic jams due to accidents). This article presents a system for monitoring and warning the driver to prevent a possible accident involving material damage, injury, or loss of life. The system performs video monitoring of the driver in order to determine his state (tired or attentive). By reducing traffic incidents and traffic jams, the energy consumed will not be wasted; thus, more sustainable transport energy use can be achieved

LASER PROFILOMETER METHOD FOR MEASURING THE DEFORMATIONS OF THE CAR BODY ELEMENTS

Abstract—In this paper is presented a new method that uses a polar coordinate system to determine the vehicles deformation magnitude. The laser profilometer method is distinguished by the small size of the equipment used, the simplicity of the measuring methodology, data acquisition and processing and high accuracy of the results. Keywords—vehicle deformations, laser telemeter, profilometer T I

ASSESMENT OF THE INJURY SEVERITY OF THE PEDESTRIAN LOWER LIMBS AT THE COLLISION WITH A VEHICLE

—The purpose of the paper is to determine the severity of the injury that may appear at the collision of the frontal part of a vehicle with the pedestrian’s lower limbs. In this study, the bio-mechanic model of the lower limbs was constructed, in order to determine the bending moment of the tibia. The collision forces that were used as input data were collected from a simulation performed in a traffic accident reconstruction software. The developed multi-body simulation is considering all forces acting on the lower limb. The injury severity is estimated using the bending moment of the tibia

RESEARCHES REGARDING THE DEVELOPMENT OF A MATHEMATICAL MODEL TO OPTIMIZE THE OPERATION OF THE ANTI-LOCK BRAKING SYSTEM

This paper presents a simplified model of a passenger-car’s ABS (Anti-Lock Braking System). For simplicity purpose, a “quarter-car” planar model was considered: a wheel in rotation movement and a mass in translational movement (the vehicle mass supported by that wheel). In these conditions, a very simple dynamic model was obtained, having only two degrees of freedom (DOFs): the wheel rotation and the translation of the “quarter-car” mass. The mathematical model consists in the motion equations of the wheel and “quarter-car” mass and in the equations describing the comportment of the driver, controller, hydraulic module and brake. The model was transposed in a Matlab-Simulink model, offering the possibility to simulate many times how the ABS works if the constructive parameters, road conditions or driver inputs are changed

RESEARCHES REGARDING MATHEMATICAL MODELING OF THE FRONTAL COLLISION OF TWO VEHICLES

In this paper we present an integrated mathematical model for the study of frontal collision between two vehicles, incorporating the impact of the two vehicles and the impact between the occupant and the vehicle. Such mathematical model developed determines occupant kinematic parameters, ie acceleration, velocity and movement of the thorax and pelvis, depending on: the primary impact parameters vehicle – vehicle, physical characteristics and occupant belt stiffness

RESEARCHES REGARDING THE DEVELOPMENT OF A MATHEMATICAL MODEL TO OPTIMIZE THE OPERATION OF THE ANTI-LOCK BRAKING SYSTEM

This paper presents a simplified model of a passenger-car’s ABS (Anti-Lock Braking System). For simplicity purpose, a “quarter-car” planar model was considered: a wheel in rotation movement and a mass in translational movement (the vehicle mass supported by that wheel). In these conditions, a very simple dynamic model was obtained, having only two degrees of freedom (DOFs): the wheel rotation and the translation of the “quarter-car” mass. The mathematical model consists in the motion equations of the wheel and “quarter-car” mass and in the equations describing the comportment of the driver, controller, hydraulic module and brake. The model was transposed in a Matlab-Simulink model, offering the possibility to simulate many times how the ABS works if the constructive parameters, road conditions or driver inputs are changed