Transcript My Dream car

MY DREAM CAR
DESIGN AND SAFETY
INTRODUCTION
• Shnira wants a stylish “cool” car for her 17th birthday
• Her parents want her to get a “safe” car
• But what constitutes a “safe” car?
• Can a “safe” car also be stylish?
LEXUS RX 350
Tested
vehicle
2016 Lexus RX 350 4-door 4wd
Weight
4,431 lbs.
Side
airbags
front and rear head curtain airbags and front and rear seat-mounted torso airbags
Wheelbase 110 in.
Length
193 in.
Width
75 in.
Engine
3.5 L V6
EPA
ratings
19 mpg city / 26 mpg highway
LEXUS RX 350 SAFETY FEATURES
• Side airbags: front and rear head curtain airbags and front and rear seatmounted torso airbags
• Rollover sensor: designed to deploy the side curtain airbags in the event of an
impending rollover
• Driver and front passenger knee airbags: separate airbags in the lower
instrument panel designed to minimize knee injuries in frontal crashes
• Electronic stability control
• Antilock brakes
• Daytime running lights
PHYSICS CALCULATIONS
• Momentum (p) = Mass (m) x Velocity (v)
• Mass: 4,431 lbs. = 2,010 kg
• Velocity: 60 mph = 96 kmph
• 2010 x 96 = 192960 kg * km/h
• Impulse (J) = Force (N) x Time (s)
• Acceleration = 20 m/s2
• Force = Mass x acceleration
• 2010 x 20 = 40,200 N
• Impulse = 40,200 x 10 s = 402,000 N * s
CRASHWORTHINESS RESULTS
• Small overlap front
• GOOD
• Moderate overlap front
• GOOD
• Side
• GOOD
• Roof strength
• GOOD
• Head restraints & seats
• GOOD
CRASH TEST VIDEOS
crash test
nhsta crash