All of the transmissions available in the market today has grown 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 tranny types including manual, regular automatic, automatic manual, dual clutch, continuously adjustable, split power and genuine EV.
Until extremely recently, automotive vehicle producers largely had two types of transmitting to select from: planetary automatic with torque converter or conventional manual. Today, nevertheless, the volume of choices available demonstrates the changes seen over the industry.
This is also illustrated by the many various kinds of vehicles now being produced for the market. And not simply conventional automobiles, but also all electric and hybrid vehicles, 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 restrictions and complications of the method becoming more more popular, and the constant drive among manufacturers and designers to deliver optimal efficiency at decreased 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 make certain that the best degree of efficiency and performance is delivered at all times. Manufacturers are under increased pressure to create powertrains that are completely new, different from and much better than the last version-a proposition that’s made more technical by the need to integrate brand components, differentiate within the marketplace and do everything on a shorter timescale. Engineering teams are on deadline, and the development process must be more efficient and fast-paced than previously.
Until now, the use 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 these are highly advanced equipment that enable users to extract extremely dependable and accurate data, they are still presenting data that is collected without thought of the whole system.
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