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shifting test - a car with automatic gearbox - vk-den1

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Uploaded by on Mar 12, 2007

a car with automatic gearbox. built by lego mindstorms RIS 2.0. two motors were applicated to transmission and one motor was used to change gears. included three gears

Designed by Bilgehan Erdoğan & Sinan Baki

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Uploader Comments (bencizdim)

  • That's not an automatic, it's motorized you could consider it sequential. Automatics shift when more or less torque is needed, you're shifting it not the torque. It's still a nice gearbox i just wanted to clear that up.

  • @invisibleninjakitty for this video, the gearbox shifts sequentially; however, there is another video for that gearbox that shifting occurs according to the amount of torque required. (actually rpm is considered)

  • I built one just like that, where it was in a lego RC car. It was driven by 2 XL motors, and had N, 1, 2, 3, 4, R. With 2 XL motors, I needed to put in a clutch gear to prevent breakage. It was hooked up with independent suspension, brakes, and rack and pinion steering. It was cool to see it move, although it quickly got out of range of the controller.

  • it would be great if you were put some pics/videos of your car.

  • how many total ratios does it go through? i have personally made a 3-speed automatic transmission with far less parts, but using two motors as you have. very good tranny, but have you applied it to a moving vehicle?

  • i don't know exactly but probably there was over than 20 ratios. yes this gbx is made for a moving vehicle (so it's so big so as to be strong) that you can see this videos in my channel.

Top Comments

  • cars with automatic gear only have 2 pedals right? speeder and brake

  • that's awesome!!

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All Comments (24)

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  • dude sick ass youl have to get a prytty strong engine to move a viecke with a gbx nice!

  • dude you are incredible

    thats so insane

    its so hard for me to make one gearbox

  • WOW where can i buy stuff like this??

  • that looks very, very impressive.

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