computers & automobile safety. overview: computers & car safety how are computers helping...
TRANSCRIPT
Computers & Automobile Safety
Overview: Computers & Car Safety
• How are computers helping now?– Airbags, Emergency services notification– Drive-by-wire solutions: ABS, ASR/TC, ESC
• How will computers help in the future?– Road warning networks– Autonomous vehicles
You
• Today’s drivers aren’t the best trained– Have little experience handling a vehicle
in an emergency situation
– Often do not know how to make their vehicles perform to their fullest
The Pros
• Have excellent reflexes
• Sense when the car exceeds its performance limits and appropriately correct
• Make full use of the car’s handling capabilities
The Pros
Today
• Automakers use computer intelligence to make up for driver incompetence.
• Increased performance through computer intervention– Antilock Braking System (ABS)
– Acceleration Slip Regulation (ASR)/Traction Control (TC)
– Computers compare actual and intended performance, then make corrections by braking and/or accelerating
ESC – Electronic Stability Control
• Corrects instability during cornering
• Reads sensors monitoring driver input, rotational velocity of wheels, yaw-rate
• Applies brake to wheel(s) with traction
• Recent studies show ESC greatly reduces single-vehicle accidents
Emerging Driver-Aids
• Adaptive cruise control• Lane-departure warning systems• Advanced-warning systems
– GPS + Wireless Networking
– Centralized database of road alerts
Autonomous Vehicles
• Benefits: save lives, increase productivity
• Foundations– Drive-by-wire
– GPS
– Radar/vision systems
Autonomous Vehicles
• Obstacles to overcome:– Better sensing for world
awareness
– Complex-realtime systems
– More computational power needed
– Newer/smarter algorithms• Collision-detection