All of the transmissions available for sale today is continuing to grow exponentially in the last 15 years, all while increasing in complexity. The result can be that we are actually dealing with a varied amount of transmitting types including manual, typical automatic, automatic manual, dual clutch, constantly adjustable, split power and genuine EV.
Until very recently, automotive vehicle producers largely had two types of transmission to choose from: planetary automatic with torque converter or conventional manual. Today, nevertheless, the volume of choices available demonstrates the changes seen across the industry.
That is also illustrated by the many various kinds of vehicles now being produced for the marketplace. And not simply conventional vehicles, but also all electrical 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. However, that is changing, with the restrictions and complications of this method becoming more more popular, and the constant drive among manufacturers and designers to provide optimal efficiency at decreased weight and cost.
New powertrains feature close integration of elements like the primary mover, recovery systems and the gearbox, and also rely on highly sophisticated control systems. That is to assure that the best amount of efficiency and functionality is delivered at all times. Manufacturers are under improved pressure to create powertrains that are brand new, different from and much 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 it all 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 typical way to build up drivelines. This process involves components and subsystems designed in isolation by silos within the business that lean toward verified component-level analysis equipment. While these are highly advanced tools that allow users to extract extremely reliable and accurate data, they remain presenting data that is collected without factor of the complete system.