Torsten Muller-Otvos talks Rolls-Royce 102EX concept

Torsten Muller-Otvos talks Rolls-Royce 102EX concept

Rolls-Royce’s CEO, Torsten Muller-Otvos, talked with Lou Ann Hammond, CEO, www.drivingthenation.com, at the 2011 Geneva Auto show about whether Rolls-Royce customers would be interested in a Rolls-Royce electric vehicle.

“Today, Rolls-Royce Motor Cars begins an exploration into alternative drive-trains, seeking clarity on which technology may be suitable to drive Rolls-Royce motor cars of the future. The alternative drive-train we choose must deliver an authentic Rolls-Royce experience. It must be a technology that is right for our customers, our brand and which sets us on a sound footing for a sustainable future. That is why this project is so important.” CEO Torsten Muller-Otvos.

The Rolls-Royce Motor Cars 102EX is the first exploration for Rolls-Royce into the alternative energy. What are the differences between an electric car and a twelve-cylinder Rolls-Royce in weight, charging, and range?

According to Rolls-Royce:

Phantom EE features the cars ground-breaking aluminum spaceframe, so essential to dynamic prowess, as well as the sense of calm and tranquillity enjoyed by occupants. However, the naturally aspirated 6.75-litre V12 petrol engine and 6-speed gearbox have been replaced by a lithium-ion battery pack and two electric motors mounted on the rear sub-frame. These motors are connected to a single speed transmission with integrated differential.

Each motor is power rated to 145kW, giving Phantom EE a maximum power output of 290kW and torque of 800Nm available over a wide band. This electric vehicle compares with 338kW for standard Phantom with maximum torque of 720Nm, delivered at 3,500rpm.

The Nickel Cobalt Manganese battery chemistry holds around 230Wh/kg, a high energy density which is important in achieving an acceptable range between re-charges. Pre-launch tests suggest Phantom EE should run to a range of up to 200km. Delivered on an effortless wave of torque, the Phantom 0-60mph will be achieved in under eight seconds (5.7 seconds in standard Phantom), with a top speed limited to 160kph.

This is the first application of the technology in a GKL++ segment (super luxury vehicles priced at more than $200,000), and the battery pack is thought to be the largest ever fitted to a road car.

Evaluation of technology is an important part of the test program. Howe’ver, more fundamentally the car will seek answers to questions posed of Rolls-Royce owners: what their needs might be for the future considering factors such as range, performance, and re-charging infrastructure.

The feedback from customers “ as well as media, stakeholders, and enthusiasts via the website www.electricluxury.com – will prove essential in evaluating the appropriateness of battery electric technology for Rolls-Royce.

Battery:

Chemistry                                             NCM (Lithium-Nickel-Cobalt-Manganese-Oxide) li-ion

Number of cells                                    96 in pouch design

Capacity                                                71kWh

Battery pack weight                              640 kg

Peak current                                          330 kW at 850 Amps

Charge time (est)                                  20 hours single phase / 8 hours three-phase

About the Author:

Lou Ann Hammond is the CEO of Carlist and Driving the Nation. She is the co-host of Real Wheels Washington Post carchat every Friday morning and is the Automotive, energy correspondent for The John Batchelor Show and a Contributor to Automotive Electronics magazine headquartered in Korea. Hammond is a member of the North American Car and Truck of the Year (NACTOY), Women's World Car of the Year (WWCOTY), and the Concept Car of the Year.