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> Those things are modern car transmissions, .. Even though it may be off-topic, but could you elaborate on this a little bit more?

by trymas 7y ago

winrid 7y ago
Not OP but in my experience people tend to have trouble comprehending systems of planetary gear sets. Although modern automatics are probably a bit easier to understand than old ones, especially CVTs? As long as you're ok with "the computer just triggers this solenoid.." rather than understanding a big hydrualic computer.
- TremendousJudge 7y ago
  Modern automatic transmissions are actually manual transmissions with a robot moving through the gears as far as I know. However, they do a bunch of stuff that I don't understand like pre-engage the next gear so the switch is faster -- I have no idea how that works
  - wtallis 7y ago
    > like pre-engage the next gear so the switch is faster -- I have no idea how that works I think you're referring to dual-clutch transmissions: odd gears on one clutch, even gears on the other. So the transmission can switch from eg. gear 2 to 4 with the even-numbered clutch disengaged while transferring power through the odd-numbered clutch in gear 3. When it's time to move up to gear 4, one clutch is disengaged as the other is engaged, instead of having to leave a single clutch disengaged while the gear change happens.
  - cartoonworld 7y ago
    Yeah they sure are, they are manual transmissions with a solenoid controlled dual-clutch setup. One clutch engages the next gear as the first releases, there is no lost thrust as with a single clutch pedal, and you get to save all the weight of hauling around a huge valvebody and fluid and clutch bands.... Great stuff. The Howstuffworks article is great. Have fun. https://auto.howstuffworks.com/dual-clutch-transmission.htm https://auto.howstuffworks.com/dual-clutch-transmission.htm
  - gergoerdi 7y ago
    I've found that building the Lego Technic Porsche 911 set from a couple years ago really helps a lot with understanding dual-clutch transmission systems. https://brickset.com/sets/42056-1/Porsche-911-GT3-RS https://brickset.com/sets/42056-1/Porsche-911-GT3-RS

> Those things are modern car transmissions, .. Even though it may be off-topic, but could you elaborate on this a little bit more?

by trymas 7y ago

> Those things are modern car transmissions, .. Even though it may be off-topic, but could you elaborate on this a little bit more?

winrid 7y ago

Not OP but in my experience people tend to have trouble comprehending systems of planetary gear sets. Although modern automatics are probably a bit easier to understand than old ones, especially CVTs? As long as you're ok with "the computer just triggers this solenoid.." rather than understanding a big hydrualic computer.

TremendousJudge 7y ago
Modern automatic transmissions are actually manual transmissions with a robot moving through the gears as far as I know. However, they do a bunch of stuff that I don't understand like pre-engage the next gear so the switch is faster -- I have no idea how that works
- wtallis 7y ago
  > like pre-engage the next gear so the switch is faster -- I have no idea how that works I think you're referring to dual-clutch transmissions: odd gears on one clutch, even gears on the other. So the transmission can switch from eg. gear 2 to 4 with the even-numbered clutch disengaged while transferring power through the odd-numbered clutch in gear 3. When it's time to move up to gear 4, one clutch is disengaged as the other is engaged, instead of having to leave a single clutch disengaged while the gear change happens.
- cartoonworld 7y ago
  Yeah they sure are, they are manual transmissions with a solenoid controlled dual-clutch setup. One clutch engages the next gear as the first releases, there is no lost thrust as with a single clutch pedal, and you get to save all the weight of hauling around a huge valvebody and fluid and clutch bands.... Great stuff. The Howstuffworks article is great. Have fun. https://auto.howstuffworks.com/dual-clutch-transmission.htm https://auto.howstuffworks.com/dual-clutch-transmission.htm
- gergoerdi 7y ago
  I've found that building the Lego Technic Porsche 911 set from a couple years ago really helps a lot with understanding dual-clutch transmission systems. https://brickset.com/sets/42056-1/Porsche-911-GT3-RS https://brickset.com/sets/42056-1/Porsche-911-GT3-RS