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Cruise Control
While cruise control was used in automobiles as early as the
early 1900s, modern cruise control was invented in 1948 by
American engineer Ralph Teetor. The idea came to him when
he was a passenger in a car driven by his lawyer, who kept
fluctuating the speed every time he spoke.
Today, almost all cars are equipped with some form of cruise
control. Cruise control, invented in the early 1900s, became
popular on luxury vehicles, but has since become an essential
and incredibly useful piece of automotive technology. Let's take
a look at where cruise control comes from and how it works to
make our daily life easier.
As an automatic transmission pioneer, Teetor already had
experience with vehicle mechanics, so he decided to design a
solution for his lawyer's driving behavior. The result was a
system that calculated vehicle speed based on vehicle
driveshaft rotations and used a two-way screw electric motor
to vary the throttle position as needed. In 1950 Teetor was able
to obtain a patent for a "speed control device to resist the
actuation of the accelerator", and cruise control as we know it
was born.
Modern cruise control systems began to emerge in the 1990s,
with manufacturers incorporating the most advanced digital
technology into the design. Other systems such as LiDAR,
radar, sonar and camera-based solutions were soon added,
improving the car's ability to detect oncoming traffic, in turn
helping the vehicle determine its speed and avoid potential
collisions.
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