The variety of 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 actually coping with a varied amount of transmission types including manual, regular automatic, automatic manual, dual clutch, consistently variable, split power and 100 % pure EV.
Until extremely recently, automotive vehicle producers largely had two types of transmission to select from: planetary automated with torque converter or conventional manual. Today, nevertheless, the volume of options avaiable demonstrates the changes seen across the industry.
This is also illustrated by the countless various kinds of vehicles now being produced for the marketplace. And not simply conventional automobiles, but also all electrical and hybrid automobiles, with each type needing different driveline architectures.
The traditional development process involved designing a transmission in isolation from the engine and the rest of the powertrain and vehicle. Nevertheless, this is changing, with the limitations and complications of the method becoming more more popular, and the constant drive among producers and designers to provide optimal efficiency at reduced weight and cost.
New powertrains feature close integration of elements like the primary mover, recovery systems and the gearbox, and also rely on highly advanced control systems. That is to make sure that the best amount of efficiency and overall performance is delivered at all times. Manufacturers are under increased pressure to create powertrains that are completely new, different from and 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 everything on a shorter timescale. Engineering groups are on deadline, and the advancement process must be more efficient and fast-paced than previously.
Until now, the use of computer-aided engineering (CAE) has been the most typical way to develop drivelines. This process involves components and subsystems designed in isolation by silos within the organization that lean toward confirmed component-level analysis equipment. While they are highly advanced equipment that allow users to extract extremely reliable and accurate data, they are still presenting data that 
is collected without account of the complete system.
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