Aston Martin has equipped the Valhalla with a hybrid system without a reverse gear: electric motors provide reverse movement.
The Aston Martin Valhalla supercar received a 4.0-liter V8 with two turbines and three electric motors. Two of them are located on the front axle and independently rotate the wheels.
It was this scheme that made it possible to abandon the classic reverse gear. When reverse is engaged, the gearbox is shifted to neutral, and the front electric motors begin to rotate in the opposite direction.
Even with a discharged battery, the system remains operational: the internal combustion engine can act as a generator. At the same time, under normal conditions, the charge is replenished through recuperation.
The third electric motor is integrated into the robotic gearbox with two clutches. It is connected to the shaft of even gears, but thanks to the design of the transmission, traction is available in all gears.
This solution reduces the weight and size of the units, and also reduces the load on the transmission. In addition, the electric motor receives the effect of increasing torque by working through the gearbox.
Engineers used a hybrid scheme to reduce redundant components and increase efficiency, while maintaining the dynamic characteristics of the car.