Forward Collision Avoidance Technology

Forward Collision Avoidance Technology
An Introduction

Prof. David Bernstein
James Madison University

Computer Science Department

bernstdh@jmu.edu

Categories

Potential Collision Technologies:
- Reduce the likelihood of being in a situation in which a collision may occur
Imminent Collision Technologies:
- Prevent or mitigate an imminent collision

Potential Collision Technologies

Adaptive Lighting:
- Automatically switches between low and high beams when a vehicle isn't or is approaching
Adaptive Cruise Control:
- Automatically adjusts your vehicle's speed to so that it maintains a pre-set distance (e.g., based on the driver's rule of thumb) from the vehicle in front of it

Sensors for Potential Collision Technologies

Adaptive Lighting:
- A front-mounted digital camera with image analysis to detect oncoming vehicles (e.g., oncoming headlights)
Adaptive Cruise Control:
- Sonar or radar pointed to the front of the vehicle

Imminent Collision Technologies

Forward Collision Warning:
- Warns the driver if they are too close to the vehicle in front
Automatic Emergency Braking:
- Dynamic Brake Support - Supplements the driver's braking if it is deemed to be insufficient
- Crash Imminent Braking - Attempts to brake the vehicle when the driver does not take any action

Components of Imminent Collision Technologies

Sensor:
- Sonar or radar pointed to the front measuring both range and speed
- Speedometer
- Brake sensor
Information Provision:
- Visual (e.g., a light on the dashboard)
- Auditory (e.g., a warning beep)
- Haptic (e.g., vibration of the steering wheel)
Control:
- Braking