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2011 Panamera with brake energy recuperation system

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2011 Porsche Panamera announced with brake energy recuperation system

Porsche will now offer a new brake energy recovery system as standard in all its V8 Panamera models starting this August.

The new technology will deliver a considerable improvement in fuel economy to the Panamera. In the Panamera Turbo model, the energy recovery system accounts for a 0.7 liters/100 km improvement in consumption.

When combined with the new option of low roll-resistance, all-season 19-inch tires, the Turbo's fuel-economy rating drops to 11.3 liters/100 km from its current 12.2 rating. For the Panamera S and 4S models, the technology increases fuel economy by about 0.5 liters/100 km - to 10.3 and 10.6 liters/100 km, respectively.

The energy recovery system works by generating electrical power from the brakes which can then be used to charge the car's battery. Consequently, the technology also relieves the alternator current from having to charge the battery during acceleration, providing more energy to the engine and improving economy.

Porsche has also optimized its Auto Stop Start function for a quicker jump off the start. It looks like Porsche is aiming for the day when it can offer a V8 Panamera with a fuel-economy rating under 10 liters/100 km. They're getting close.

This increase in efficiency results primarily from brake energy recuperation, with the battery being charged primarily during application of the brakes and, respectively, in overrun. When accelerating, on the other hand, the field current in the alternator is reduced, minimising the load acting on the combustion engine since it is now required to deliver even less energy for charging the battery, instead making this energy available for even faster acceleration. In conjunction with further improvements, this battery charging strategy on the Panamera Turbo saves no less than 0.7 litres on 100 kilometres, while newly developed, optional all-season tyres measuring 19 inches in diameter likewise serve to reduce fuel consumption by another 0.2 ltr/100 km on each model in the Panamera range. Together with the enhanced tread of the tyres, a special rubber compound serves to reduce roll resistance while at the same time increasing the mileage covered by the tyres. The Auto Start Stop function has also been optimised, now allowing the driver to set off again even faster and more comfortably after coming to a halt.

Porsche Torque Vectoring Plus (PTV Plus) now available as an option together with Porsche Dynamic Chassis Control (PDCC) and a fully controlled rear axle differential lock enhances the driving qualities of the Panamera V8 models. PTV Plus optimises steering behaviour by intervening in the brakes on the inner rear wheel in a bend and generating an additional rotational force acting in the same direction as the steering wheel. The result is even more direct and dynamic steering when entering a bend - and at the same time PTV Plus, in conjunction with the rear axle differential, improves traction on the rear wheels when accelerating out of a bend on the road.
 

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