[grotesqueness]

Car got manual and auto gear. I believe bus should also have. When I young I board the bus on driver left got one SUPER BIG box inside is gear? When making a turn I see the driver use all his strength to steer the steering wheel. But I think nowadays bus easier to drive compared to last time?

yes it is called PID controller power steering

got to do a project on that with a digital signal processor

the more powerful the processor the less effort to turn the wheel and the more accurate the output and it consistency


no power steering the steering wheel is 30% larger and take more turns to move the front wheels

no power steering takes 3 round turns to move the front wheel at a 45 degree angle

power steering takes 1.5 turns