Ferrari 599 Hy-KERS

This concept is still in its infancy. The show car was just completed and will commence dyno testing upon its return to Italy. According to Franco Cimatti, Concept Engineering Manager, the net weight increase of the hybrid system is 176 pounds, which shifts the weight bias by a welcome two-percent toward the rear. Only 44 pounds of that comes from the lithium-ion battery pack, which is divided into two one-inch thick aluminum-sheathed units packaged beneath the floor in openings cut in the underbody tray. They’re as smooth and flat as the aero tray, and the air cooling saves the mass of a battery cooling circuit. The batteries store 3 kWhrs, enough for about 10 km (6 miles) of Euro city-cycle range or 10-12 seconds of auxiliary thrust with the hammer down. The 80-kW (107-horsepower) electric motor powers the dual-clutch transmission’s odd-gear shaft, but by selecting neutral on the odd gears and closing the odd-gear clutch, it also powers the car when even gears are selected. (This works because Ferrari’s exceptionally robust triple-cone synchronizers can engage and disengage way quicker than most.) A separate motor in the front runs the accessories. Many other opportunities for weight savings and driving dynamic improvements may prove possible as development continues. For example:
Use the electric motor’s regenerative capabilities to rapidly slow the engine for faster gearshiftsUse the electric motor to smooth the resonance vibration peaks that naturally occur in the transmission during hard accelerationEliminate reverse gear and drive the car backward electrically
It remains to be seen how customers would react to a silently accelerating Ferrari, and Cimatti is opposed to adding weight for external speakers generating synthetic noise, but concedes that in-vehicle speakers could serenade the driver with faux V-12 music. It’s also unknown how one might jump-start the car if the entire battery system discharged (a voltage converter supplies 12 volts for ancillaries, and only a tiny 12-volt battery is used to power the radio preset memory and energize the car for startup). We’ll be keeping a close eye on Maranello’s hybrid efforts.;