The variety of transmissions available in the market today is continuing to grow exponentially in the last 15 years, all while increasing in complexity. The effect is certainly that we are actually coping with a varied number of transmission types including manual, regular automatic, automatic manual, dual clutch, consistently variable, split power and pure EV.
Until extremely recently, automotive vehicle producers largely had two types of transmission to select from: planetary automatic with torque converter or conventional manual. Today, nevertheless, the volume of options avaiable demonstrates the changes seen across the industry.
This is also illustrated by the countless various types of vehicles now being manufactured for the marketplace. And not simply 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, that is changing, with the restrictions and complications of this method becoming more more popular, and the continuous drive among manufacturers and designers to provide 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 assure that the best amount of efficiency and functionality is delivered at all times. 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 more efficient and fast-paced than ever before.
Until now, the usage of computer-aided engineering (CAE) has been the most typical way to build up drivelines. This technique involves parts and subsystems designed in isolation by silos within the business that lean toward confirmed component-level analysis tools. While these are highly advanced equipment that enable users to extract very reliable and accurate data, they remain presenting data that’s collected without thought of the complete system.
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