cars: what does a transmission do?

Question

Hold the comments about dumb women drivers please... just because I don't know what goes on under the hood, doesn't mean I can't make the damn thing work!

I am having a problem.. please see the question I asked after this one.

Any help would be appreciated!

Thanks so much!

Answer 1

It is part of the drivetrain that drives your car. It comes in automatic and manual versions, and (among other things) shifts gears to keep up momentum.

Answer 2

Hello,

The transmission transfers engine power to the wheels. through the gearbox, with the gears you can modifiy the engine's torque and speed for the followings:
- to roll out, the car needs a bigger torque than the engine on its crankshaft can provide, thus your first gears (1,2) have big gear ratios, to provide bigger torque (and less speed). when the car's moving, the momentum helps to roll on, for maintaining your speed or accelerating, the higher gears provide sufficient torque.
(to a point, where the drag prevents you to go faster, for the engine would need more power)
- helps you to maintain an engine speed for different vehicle speeds to minimze fuel consumption.

the clucth is partof the trasnmission, it can gradually disconnect the engine from the drivetrain. The clutch transfers the torque of the engine to the gearbox. With the help of clutch you can roll off Internal combustion engines can't rev up from standstill, they will stall below a certain engine speed. When you just let the engine driving a standstill transmission, the engine will slow don under the load and under idle speed they will stall. So With the cluth you gradually start to transer engine power/torque to the gearbox, so the clucth allows a slip to the engine to remain turning. As the clucth is closed (pedal released), more and more torque is transferred to the wheels. The other function of the clutch is to make gear changes possible (during shifting, the connecting gears need snychronisation, so that when connecting, teeth of the two gears are 'merging' together).

The differental is the part of the transmission (drivetrain) which connects the gearbox with the wheels. The diff is a gear combination, where the driven axles does'nt turn together, either of them can be 'roll off', because in turns, the two wheel does a different distance, with the outerwards turning faster. The other function is to prevent the car from rolling over. The diff transfers torque on that side that is easier to rev. That is, when one of the cars' driven wheels have less or no grip (eg. one wheel in the air and car starts to roll over), that wheel will spin, while the other won't get torque (rolls off), making the car more predictable.

Regards

Answer 3

What Does A Transmission Do

Answer 4

basically transmission is the gears in your car. There are 2 types of transmission. Automatic and manual. Automatic trans changes gear for you from 1-5 depending on the speed and Manual transmission you have to change the gears yourself by stepping on the clutch. (Automatic has no clutch)

Answer 5

My (as*hole) father always said "If you can't fix it, then you shouldn't drive it."

Lucky for me, I can afford a mechanic.

I have no idea and I really don't want to know. Too dirty for me!

I do believe, it shifts speeds for you, either manually or with the stick so that the veichle can maintain speed by acceleration when it is needed? But I really don't know?

Answer 6

This Site Might Help You.

RE:
cars: what does a transmission do?
Hold the comments about dumb women drivers please... just because I don't know what goes on under the hood, doesn't mean I can't make the damn thing work!

Answer 7

it transfers the power created by the engine to the drive line/wheels,,,can either be done manually or by an automatic transmission

Answer 8

It allows the engine to run at the appropriate power output (or speed) while matching the appropriate ground speed you are looking for. Works the same for adjustable speed drills, kind of like the different speeds on a kitchen mixer (but only the results the mixer uses resistance to adjust only the motor speed).

http://auto.howstuffworks.com/transmission.htm
Great animation of the whole deal

Answer 9

It takes the torque produced by the engine moves the car forward, none of this is done by itself, but it can kinda reverse the torque to be able to drive backwards. Are you having a particular problem?

Answer 10

It shifts the gears so that you can go into drive, reverese, nuetral, first, second, etc. It is what helps the car speed up and slow down.