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 result is usually that we are actually dealing with a varied amount of tranny types including manual, typical automatic, automatic manual, dual clutch, continually adjustable, split power and pure EV.
Until very recently, automotive vehicle producers 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 across the industry.
That is also illustrated by the countless different types of vehicles now being produced for the marketplace. And not simply conventional vehicles, but also all electrical and hybrid automobiles, 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, this is changing, with the restrictions and complications of the method becoming more more popular, and the constant drive among producers and designers to provide optimal efficiency at reduced weight and cost.
New powertrains feature close integration of elements like the primary mover, recovery systems and the gearbox, and in addition rely on highly sophisticated control systems. This is to ensure that the best amount 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 necessity to integrate brand components, differentiate within the marketplace and do it all on a shorter timescale. Engineering groups are on deadline, and the advancement 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 very reliable and accurate data, they are still presenting data that is collected without account of the whole system.
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