The construction of modern adaptive control cruise(acc) in cars belongs to one man called Ralph Teetor. A powerful invention for anybody, especially for Teetor, who was absolutely blind. An adaptive control cruise is a device that controls the speeds of a car automatically. Unfortunately, autonomous vehicles are still ways away from becoming mass-market productions and acc is the closest thing we have that enables the car drive itself partly. In comparison with old-school cruise control which is only able to maintain one constant speed ,adaptive cruise control has an ability to adjust car’s speed on the fly and therefore increase a safety.
How does it work?
An adaptive cruise control is often implemented on cars using radars although some use lasers radar is more common since it works better in adverse weather conditions . It is usually mounted on the front of the car near bumper or behind the grille so when you turn the cruise control your car will fire a radar beam which travels until it hits another vehicle in front of you.
The return signal is processed by a computer to determine how far behind the second car you are. The cruise control uses this information to keep your car a set numbers of seconds behind by dynamically changing your speed. This gives you an advantage of not having to break and readjust your cruise control if you get stuck behind a car that moving slowly or frequently alters its speed and also helps to mitigate the effect of normal cruise control lowing you into a false sense of security potentially slowing your reaction time in the event there is a sudden change in a speed required.
Now many adaptive cruise control systems also feature collision avoidance where the car automatically brake more aggressively if it senses that you are getting way too close to another vehicle or object. Furthermore, you will also get an audio or a visual warnings that you are about to hit something.
Some adaptive cruise control systems can even work with other technologies to give more features. For example ,a system that is designed with GPS can automatically slow down when you are in construction zone that GPS knows about or help to control your speed more effectively on hills improving not only safety but gas mileage as well. It’s now surprising that adaptive cruise control like many optional features doesn’t come cheap and it’s usually add-on that will set you back a couple thousand dollars but it might just be worth buying if you a little inattentive driver.
“The most challenging part of such technologies is predicting human behavior,” said head of Yandex’s self-driving division Dmitry Polishchuk. “It’s easier to drive when traffic is light and almost everyone nearby is following the traffic rules. As soon as the traffic gets heavier, drivers change their behavior, violating rules more often and the entire situation on the road becomes less and less predictable. We are learning to better deal with these dynamics now to prepare for these kinds of challenges wherever they happen next.”
References :
1)https://curiosity.com/topics/you-can-thank-this-blind-man-for-inventing-modern-cruise-control-curiosity/
2)https://venturebeat.com/2019/10/17/yandexs-self-driving-cars-have-driven-1-million-miles/
















