Friction Coefficient of Emergency Braking on ABS and Non-ABS Car

ABS와 Non-ABS 승용차량의 급제동시 마찰계수 변화

  • Kim, Kee-Nam (K&K Automobile Crash Engineering Technology) ;
  • Lee, Ji-Hoon (Graduate Student of Mechanical design Engineering, Pusan National University) ;
  • Ok, Jin-Kyu (Graduate Student of Mechanical design Engineering, Pusan National University) ;
  • Yoo, Wan-Suk (School of Mechanical Engineering, Pusan National University) ;
  • Park, Ji-Yeong (Mechanical Development, S&T Daewoo)
  • Published : 2008.05.01

Abstract

Most accident reconstruction or analysis depend on the coefficient of friction to estimate the vehicle speeds. Skid mark and coefficient of friction are usually utilized to calculate the velocity and behavior of vehicles. For a critical case such as traffic accident reconstruction, however, the initial velocity of the car should be calculated precisely. In this paper, emergency brake tests on ABS and Non-ABS brake system are conducted on the dry pavement asphalt road on speed 40, 60, 80 and 100 km/h respectively. The SWIFT sensor was established in the front wheel and rear wheel at driver side to measure the forces, moments and speeds of revolution of the tires. These tests results can be available to brake tests and accident reconstruction.

Keywords

References

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