All of the transmissions available in the market today has grown exponentially in the last 15 years, all while increasing in complexity. The effect is definitely that we are actually dealing with a varied quantity of transmission types including manual, standard automatic, automatic manual, dual clutch, consistently variable, split power and real EV.
Until extremely recently, automotive vehicle producers largely had two types of tranny to select from: planetary automated with torque converter or conventional manual. Today, however, the volume of choices available 
demonstrates the adjustments seen over the industry.
That is also illustrated by the many various types of vehicles now being produced for the market. And not merely conventional automobiles, but also all electric 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 widely recognized, and the constant drive among manufacturers and designers to deliver optimal efficiency at reduced weight and cost.
New powertrains feature close integration of components like the prime mover, recovery systems and the gearbox, and also rely on highly sophisticated control systems. This is to assure that the best amount of efficiency and functionality is delivered all the time. Manufacturers are under improved pressure to create powertrains that are brand new, different from and better than the last version-a proposition that’s made more technical by the need to integrate brand elements, differentiate within the market and do everything on a shorter timescale. Engineering groups are on deadline, and the advancement process must be more efficient and fast-paced than ever before.
Until now, the utilization of computer-aided engineering (CAE) has been the most common way to build up drivelines. This technique involves components and subsystems designed in isolation by silos within the business that lean toward tested component-level analysis tools. While they are highly advanced equipment that allow users to extract very reliable and accurate data, they remain presenting data that is collected without concern of the complete system.
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