Automatic Transmission Changing Performance Standards

The most common type of automatic transmission uses hydraulic power to shift gears. This device combines a torque or fluid coupling converter with gear sets that provide the desired range of gears for the vehicle. The torque converter connects the engine to the transmission and uses pressurised fluid to transfer power to the gears. This apparatus replaces a manual friction clutch and allows the vehicle to come to a complete stop without stalling. As the number of fixed gear ratios in automatic transmissions continues to increase in the pursuit of power train system efficiency, focus must be directed towards optimising the design for shifting performance.

A lumped parameter metric is proposed to assess and compare the upshift controllability of new transmission architectures and power flows using simple analysis. The durability of fast shift times during performance manoeuvres are quantified through calculation of shifting clutch energy and power from analysis and form measurements on a power train dynamometer.

 

Automatic Transmission Problems and Repairs Overview

Grinding Sensation in Gear : Your automatic transmission normally operates smoothly when shifting from gear to gear. You shouldn't feel any grinding, slipping, or shaking sensations as your car switches gears.

Car Is Powerless : If the vehicle has no or little power and the engine is running correctly, this could be from internal transmission problems, brakes that are dragging due to a faulty calliper or brake hose, or your computer in the vehicle is limiting power because of a problem it has detected to protect the engine. You must have the vehicle checked for trouble codes to isolate the problem.

Makes Noises : If you suddenly start to hear a whining, humming or clunking noise under your car like you've never heard before, you may have transmission trouble. Some noises that come from your transmission can be caused by your automatic transmission fluid breaking down. This fluid has a hefty job of keeping an amazing number of mechanical gears and components lubricated.With time and use, that fluid loses its protective properties and doesn't stop that friction. Friction is what damages that complex automatic transmission system.

Burning Smell : If your car has a burning smell, this is something to be concerned about. One of the most common causes of a burning smell from the transmission is overheated fluid.

Your transmission's fluid has a super-important role in lubricating and protecting this expensive and complex system running properly.

Slipping Gears : If your car slips out of gear or loses traction when you need it, it is a sign of a serious safety problem. If your transmission is slipping in and out of gears when you're behind the wheel, and you need to give it the gas to avoid a problem, which is an issue as well.

The best automatic transmission specialist in Sydney is Dantrans Automotive. Having serviced the Bankstown community for several years, with over 40 years of industry experience, Dantrans Automotive is able to provide you with the solution to your transmission problems. With quality repair work and a workshop open six days a week, including after-hours services, Dantrans Automotive is the most convenient and efficient automatic transmission outlet in Sydney. Call them on (02) 9708 1177 for further details!