All of the transmissions available for sale today has grown exponentially in the last 15 years, all while increasing in complexity. The result is that we are now coping with a varied amount of transmission types including manual, standard automatic, automatic manual, dual clutch, consistently variable, split power and pure EV.
Until very recently, automotive vehicle producers largely had two types of tranny to pick from: planetary automated with torque converter or conventional manual. Today, nevertheless, the volume of choices available demonstrates the adjustments seen across the industry.
That is also illustrated by the many different types of Driveline gearboxes vehicles now being produced for the market. And not only 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. Nevertheless, that is changing, with the limitations and complications of this method becoming more widely recognized, and the continuous drive among manufacturers and designers to provide optimal efficiency at reduced weight and cost.
New powertrains feature close integration of components like the prime mover, recovery systems and the gearbox, and in addition rely on highly advanced control systems. This is to make certain that the best degree of efficiency and overall performance 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 components, differentiate within the marketplace and do it all on a shorter timescale. Engineering groups are on deadline, and the development process must be more efficient and fast-paced than previously.
Until now, the utilization 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 business that lean toward verified component-level analysis tools. While these are highly advanced tools that enable users to extract extremely dependable and accurate data, they are still presenting data that is collected without factor of the whole system.
While this can produce components that work very well individually, putting them jointly without prior concern of the entire system can create designs that don’t work, leading to issues in the driveline that are difficult and expensive to correct.