Análisis de huellas de frenado sobre asfalto producidas por vehículos con Sistema ABS (sistema de frenos antibloqueo)
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2008
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Universidad Autónoma de Entre Ríos. Facultad de Ciencia y Tecnología
Resumen
Desde 1896 los accidentes sobre vehículos motorizados pasan a ser una problemática que atenta sobre la vida de las personas.
Actualmente son considerados como un problema de Salud por la OMS. Argentina presenta uno de los índices más altos de mortalidad por accidentes de tránsito.
Uno de los adelantos más significativos en Seguridad Activa, es el desarrollo de sistemas de frenos con dispositivos antibloqueo de neumáticos (ABS); el cual evita perder el control del automóvil cuando se acciona el freno de forma violenta, reduciendo la distancia de frenado del vehículo.
El objetivo de esta investigación fue establecer si los automóviles equipados con ABS en las cuatro ruedas, grafican indicios periciales para la investigación accidentológica.
Se desarrollaron pruebas de frenado con 5 automóviles, sobre asfalto seco y limpio a 60, 80 y 100 Km/h. Se estudió la presencia de huellas (características morfológicas) y la longitud total de frenado. Generalmente se observaron huellas no tradicionales (baja nitidez y/ó discontinuas, limpieza asfáltica), agrupadas en mayor medida al comienzo y al final de la maniobra de frenado. Hallar estos sectores permitiría estimar velocidad de circulación pre impacto.
Since 1896 traffic accidents have come to be a problem that attempts against people’s life. Nowadays, they are considered as a health problem by the World Health Organization (WHO). Argentina presents one of the highest death rates caused by traffic accidents. One of the most significant improvements in Active Security is the ABS development. (Anti -lock Braking System). They avoid losing control when applying brakes violently reducing vehicles braking distance. The objective of this investigation was to establish that automobiles equipped with ABS in all wheels, give expert evidence for accident investigation. Braking tests have been carried out with 5 cars on dry clean pavement at 60, 80 and 100 km/h. Tire track presence was studied (morphological characteristics) and total braking length too. Generally, non-traditional tracks were observed, (low or discontinued sharpness and pavement cleanness) grouped mainly at the beginning and end of the braking operation. Finding these sectors would allow estimating pre impact circulating speed.
Since 1896 traffic accidents have come to be a problem that attempts against people’s life. Nowadays, they are considered as a health problem by the World Health Organization (WHO). Argentina presents one of the highest death rates caused by traffic accidents. One of the most significant improvements in Active Security is the ABS development. (Anti -lock Braking System). They avoid losing control when applying brakes violently reducing vehicles braking distance. The objective of this investigation was to establish that automobiles equipped with ABS in all wheels, give expert evidence for accident investigation. Braking tests have been carried out with 5 cars on dry clean pavement at 60, 80 and 100 km/h. Tire track presence was studied (morphological characteristics) and total braking length too. Generally, non-traditional tracks were observed, (low or discontinued sharpness and pavement cleanness) grouped mainly at the beginning and end of the braking operation. Finding these sectors would allow estimating pre impact circulating speed.
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Huellas de frenado, Sistema de frenos ABS, Sistema de frenos antibloqueo, Seguridad vial, Accidentes de tránsito