What is a BMW SMG Transmission?
SMG stands for Sequential Publication Gearbox. It's essentially a transmission capable of functioning as an automatic, or functioning as a instruction transmission. The innovation is that, when functioning as an automatic, the Chauffeur does not longing to function a clutch pedal, simply entitle desired gear. This is done by a traditional stick, or a allot of paddle shifters attached to the steering contour or steering shove, depending on the pattern BMW. While automatic resources is also fuel efficient, book process provides preferable engine performance while removing the human Element and its faculty for inaccuracy. This helps to establish a longer lifetime to the transmission and all its related parts.
Structure
The transmission draft itself is not all that at odds from a natural automatic transmission. There's a cipher of planetary gear sets including a digit of brakes and clutches, connected to valves, which are in turn connected to the entity valve. The back of the planetary gear meeting is connected to the flywheel, with a clutch fix in between the two To admit the faculty time to come from the flywheel to be disengaged from the gear establish at Testament. The other point of the planetary gear locate is connected to a typical Seam, which connects to a drive shaft. This signal is interpreted by an onboard computer which over-rides the body valve and forces the desired change in gears.
Power passes through the flywheel to the planetary gear sets. The gear sets spin in a certain configuration based on what clutches and brakes connected to them have engaged. The body valve controls these clutches and brakes based on the engine's RPM, oil pressure, and other factors. When these factors raise beyond a certain threshold, the body valve changes the configuration of the brakes and clutches. This changes the configuration in which the planetary gears spin, altering the amount of power that's reaching the drive axle. This is how any automatic transmission normally shifts gears. When set in manual, the driver presses a button or operates the paddle that indicates a shift in gears is desired. The drive shaft connects with the vehicle's drive axle to turn the wheels.
