Amateur engineer Dimitar Tilev has designed a radio-controlled model of a car that simulates the physics of motion of real, full-size cars. It’s an unprecedented business – lightweight plastic and aluminum models have completely different driving characteristics than heavy steel structures. In particular, they are practically devoid of inertia, and therefore cannot perform such spectacular stunts as drifting or a police turn.
Tilev’s car, made from a custom version of a 1963 Oldsmobile Dynamic 88 Wagon, was built to meet this engineering challenge. How do you get a model, whose weight is measured in grams, to demonstrate the same movement physics as a real car weighing more than a ton? Servomotors and an Arduino chip came to the rescue of the inventor.
The model has four separate servo motors, which are controlled through the Arduino and can change the angle of rise and rotation of each wheel. It works like an active suspension system, but vice versa – instead of hiding bumps, the structure simulates movement with a different load on each wheel. An accelerometer is used here to monitor movement.
As a consequence, the model quite accurately copies the behavior of a real heavy machine. “Squats” at the start, bends when cornering, goes into drift, effectively brakes. Dimitar Tilev does not plan to sell his development, although he does not exclude the possibility of creating a commercial version on its basis.