All of the transmissions available in the market today is continuing to grow exponentially in the last 15 years, all while increasing in complexity. The effect can be that we are now coping with a varied quantity of tranny types including manual, regular automatic, automated manual, dual clutch, continuously variable, split power and 100 % pure EV.
Until very recently, automotive vehicle manufacturers largely had two types of tranny to select from: planetary automated with torque converter or conventional manual. Today, however, the volume of options avaiable demonstrates the changes seen across the industry.
This is also illustrated by the countless different types of vehicles now being manufactured for the market. And not just conventional automobiles, but also all electrical and hybrid vehicles, with each type requiring different driveline architectures.
The traditional advancement process involved designing a transmission in isolation from the engine and all of those other powertrain and vehicle. However, this is changing, with the restrictions and complications of the method becoming more widely recognized, and the continuous drive among manufacturers and designers to deliver optimal efficiency at decreased weight and cost.
New powertrains feature close integration of components like the primary 
mover, recovery systems and the gearbox, and in addition rely on highly advanced control systems. This is to make sure that the best degree of efficiency and efficiency is delivered all the time. Manufacturers are under improved pressure to create powertrains that are completely new, different from and much better than the last version-a proposition that’s made more complex by the need to integrate brand elements, differentiate within the marketplace and do it all on a shorter timescale. Engineering teams are on deadline, and the advancement process must be better and fast-paced than ever before.
Until now, the use of computer-aided engineering (CAE) has been the most typical way to develop drivelines. This technique involves elements and subsystems designed in isolation by silos within the organization that lean toward tested component-level analysis equipment. While they are highly advanced equipment that allow users to extract extremely dependable and accurate data, they are still presenting data that is collected without account of the whole system.
You’ll find that there are several sources available for details related to driveline gearboxes, yet certainly they are of differing degrees of dependability.