I’ve seen several animations and gone through explanations that a transmission isolates engine shaft from the drive shaft for several purposes but how does a car engine keeps running even when it is not in neutral gear(any gear like R, 1, 2, 3…6) and no pedal has been pressed, so clutch is not pressed too so this means the engine shaft is connected to the transmission and if it is in any gear other than R the drive shaft is coonected to the transmission, right ?
If yes, then why doesen’t the car moves and how does the engine still keeps running idle ?
In: 6
When a car is idle, the engine is disconnected from (or only weakly connected to) the driveshaft.
In a manual car, where there’s a clutch, you cannot be stopped in a gear and have the clutch closed. If you do this, the engine stalls and comes to a halt because it is forced to move at 0 speed.
In an automatic, instead of a clutch there is a torque converter, which uses fluid to loosely couple the shafts. It’s like a clutch that’s always somewhere between open and closed. It always applies some force to the car, but at low engine RPMs this force is pretty small, and likewise the force slowing down the engine is pretty small.
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