The variety of transmissions available for sale today is continuing to grow exponentially in the last 15 years, all while increasing in complexity. The effect is definitely that we are now coping with a varied quantity of tranny types including manual, typical automatic, automatic manual, dual clutch, constantly adjustable, split power and 100 % pure EV.
Until extremely recently, automotive vehicle producers largely had two types of tranny to choose from: planetary automated with torque converter or conventional manual. Today, however, the volume of choices available demonstrates the adjustments seen across the industry.
That is also illustrated by the many various kinds of vehicles now being manufactured for the marketplace. And not just conventional automobiles, but also all electric and hybrid vehicles, with each type needing 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, this is changing, with the restrictions and complications of this method becoming more more popular, and the continuous drive among manufacturers and designers to deliver optimal efficiency at decreased weight and cost.
New powertrains feature close integration of elements like the prime mover, recovery systems and the gearbox, and also rely on highly advanced control systems. That is to ensure that the best degree of efficiency and efficiency is delivered all the time. Manufacturers are under increased 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 everything on a shorter timescale. Engineering groups are on deadline, and the advancement process must be better and fast-paced than previously.
Until now, the use of computer-aided engineering (CAE) has been the most typical way to develop drivelines. This technique involves parts and Driveline gearboxes subsystems designed in isolation by silos within the business that lean toward verified component-level analysis equipment. While they are highly advanced tools that allow users to extract very reliable and accurate data, they remain presenting data that’s collected without consideration of the complete system.
While this may produce components that work very well individually, putting them collectively without prior factor of the entire system can create designs that don’t work, leading to issues in the driveline that are difficult and expensive to improve.