《Motorcycle Brake Testing》.pptVIP

Motorcycle Brake Testing U.S. DOT/NHTSA George J. Soodoo February 2002 Introduction Purpose: To assess state of motorcycle braking performance Tested motorcycles in each of 5 categories: Sport, Cruiser, Touring, Dual Purpose, Scooter Performance evaluated with application of front brake, rear brake, and both brakes together Evaluated antilock brake system (ABS) on Touring bike Evaluated linked braking system (LBS) on Sport bike Motorcycle Crashes 1990-1999 Over-40 age group accounted for 39% of fatalities in single vehicle crashes in 1999, up from 14% in 1990 42% of all age group fatalities involved intoxicated riders Bikes with engine displacement above 1000 cc were involved in 33% of fatalities in 1999, up from 22% in 1990 Single vehicle crashes account for about 45% of all motorcycle fatalities Crash Avoidance Maneuvers Steps rider took to avoid crash 22% of motorcycle fatalities were related to braking or steering maneuvers Fatalities related to braking has fluctuated slightly between 1990 and 1999 but remains at 13% 30% of fatalities were attributed to no maneuver taken to avoid crash Vehicle maneuver prior to crash One-half of the motorcycle fatalities occurred when the vehicle was negotiating a curve NHTSA Plans?? To understand causes of increased motorcycle fatalities by additional crash data analysis To understand role crash avoidance systems play in potential crash reduction To continue research to evaluate brake system performance To seek ways to improve brake performance through harmonization and/or upgrade of FMVSS 122 Category/Test Vehicles Sport: Honda VRF800F with linked braking system (LBS) Cruiser: Harley-Davidson Superglide Sport Touring: BMW R1100 RT with antilock braking system (ABS) Dual Purpose: Kawasaki KLR 650 Scooter: Yamaha Riva 125 Braking Test Maneuvers 30 mph on Dry Asphalt SN 85 60 mph on Dry Asphalt SN 85 80 mph on Dry Asphalt SN 85 30 mph on Wet Asphalt SN 55 30 mph on Polished Concrete 30 mph in a corner on Dry Asphalt