Toyota will introduce a series of new technologies and system upgrades, engines and transmissions until 2021. In these, the highlight goes to two new automatic gearboxes, one with eight speeds and one with ten. Both aim to improve efficiency and reduce energy losses (and consequently, consumption).
In both cases, the new transmissions of the Japanese manufacturer benefit from a new production technique that reduces sprocket and clutch friction. In this case, the clutch force loss is reduced by 50 percent compared to the current six-speed gearbox. Despite having more cash relationships, Toyota also ensures that these will be more compact and lighter than the current transmissions, lowering the center of gravity of the car.
Both the 8-speed and the 10-speed transmissions have wider gears and a new torque converter, allowing you to keep the gearbox at the optimum speed ratio in a wider range, in order to improve the speed’s response to the driver’s requests in the gas pedal.
The 10-speed gearbox, in particular, uses a close-ratio gear set, making the gear shift more fluid, and ensuring optimum rotation at low and medium speeds. Toyota guarantees that the exchange of changes will be one of the fastest.
Toyota is not the first automaker to deliver a ten-speed box, as GM and Ford have developed such a transmission together to be included in sports models such as the Chevrolet Camaro and Ford Mustang or pickups in Large dimensions. Honda has also patented an 11-speed gearbox, and regularly uses a nine-speed gearbox on the Honda NSX.