In fact, Mercedes-Benz and BMW models also use dual-clutch gearboxes, but they are only used in supercars and performance cars. For common models Mercedes-Benz and BMW, they instinctively avoid dual-clutch, because dual-clutch is not the optimal solution for Mercedes-Benz and BMW, but it is a necessary choice for the public.
I bought Audi’s AT gearbox, so it was mercilessly beaten. Knowing shame and then being brave, Audi is preparing to develop its own gearbox. However, the AT gearbox is the most technically difficult and the most difficult to develop among all gearboxes. Audi lacks technical accumulation in this area. The patents for AT gearboxes are also in the hands of ZF, Aisin and other manufacturers, and patent barriers have been formed. But the torque that a CVT gearbox can withstand is limited. Used by Audi for high-end models. So Audi has only one way to develop a dual-clutch gearbox. So don't think that Audi really has the foresight to think that dual-clutch gearboxes are the future, it's just a smoke bomb put out by the manufacturer. In fact, Audi has no choice.
It is impossible for Audi's high-end models to purchase 6AT at a relatively low price, but if 8AT is purchased from ZF, the cost will be very high. And as I said just now, it is impossible for Audi to purchase gearboxes from all suppliers, and it is easy to be stuck by suppliers. Trumpchi GS8 has encountered this problem. And if a self-developed gearbox is used, the manufacturing cost or R&D cost of the dual-clutch gearbox is much lower than that of the AT gearbox. In the case of independently developing the gearbox, Audi chose the lowest-cost direction.
Whether it is the United States, Europe or China, the government’s emission and fuel consumption standards for car companies are not low. For example, China requires car companies to reduce the average fuel consumption of all models to 5 liters by 2020. Audi and the Volkswagen Group behind it are companies with little technology accumulation and few new energy vehicles in the field of new energy. The transmission efficiency of the dual-clutch gearbox is the highest among automatic gearboxes, making it easier to meet the needs of emission policies.
One million car purchase subsidies