Yamaha prepares its dual-clutch gearbox

Yamaha has recently filed an international patent office drawings and project guidelines for a dual-clutch gearbox, in the wake of what has been done by Honda for its VFR1200F.

The advantages of this solution lie in the transmission speed of change and time in which the infinitesimal change moves from one gear to another, making almost imperceptible moment of the change in value added.

This is possible thanks to the presence of two trees in the exchange, one for even gears and one for odd gears, each served by a dedicated holding clutch in gear Pre- later, connecting it to the final drive is disconnected when the march that precedes it. Just as in rolling, where the two runners passing the baton without interrupting the run, the DCT with the two clutches are “pass” the seamless transmission.

All this happens with a fine electronic management which leaves the driver is only responsible for the gas and brake, because the optimization of the exchange rate regime does the electronic brains second preset maps.

The difference between what is proposed by Honda and Yamaha will propose what is in the layout of the two trees (one for equal relations and one for odd ratios) on DCT Honda they are concentric and have the two coaxial clutch arrangement on the right side, keeping practically the same longitudinal dimensions of the engine, at the expense, for a few millimeters of those cross (the clutch case is slightly more exposed).

The layout designed by Yamaha wants to keep substantially more of the masses un’equilibratura side, presenting two clutches on opposite sides of the engine, one on the left and one on the left, always dedicated to two trees in return, but are not concentric but side by side, then shorter but more need for space in the longitudinal direction.

The drawings are stored on a Yamaha R1 of the previous generation, which suggests that perhaps the House Iwata intends to debut its dual-clutch gearbox on a super, in contrast to the fact that Honda has chosen a sport-touring .

Certainly for both houses is not and will not be a “technical exercise” for a single model, but the first step of a product strategy that will bring solutions automatic transmission in a broad sense a growing proportion of models in range .