The variety of transmissions available in the market today has grown exponentially in the last 15 years, all while increasing in complexity. The effect is usually that we are actually coping with a varied quantity of transmitting types including manual, conventional automatic, automated manual, dual clutch, continually adjustable, split power and natural EV.
Until very recently, automotive vehicle manufacturers largely had two types of tranny to pick from: planetary automatic with torque converter or conventional manual. Today, however, the volume of options avaiable demonstrates the adjustments seen over the industry.
That is also illustrated by the countless various kinds of vehicles now being produced for the marketplace. And not simply conventional automobiles, but also all electrical 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. However, that is changing, with the limitations and complications of this method becoming more widely recognized, and the continuous drive among producers and designers to provide optimal efficiency at reduced weight and cost.
New powertrains feature close integration of components like the primary mover, recovery systems and the gearbox, and in addition rely on highly sophisticated control systems. This is to guarantee that the best amount of efficiency and overall performance 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 complex 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 development process needs to be more efficient and fast-paced than ever before.
Until now, the utilization of computer-aided engineering (CAE) has been the most typical way to develop drivelines. This process involves components and subsystems designed in isolation by silos within the organization that lean toward proven component-level analysis tools. While they are highly advanced equipment that enable users to extract extremely dependable and accurate data, they remain presenting data that is collected without concern of the whole system.
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