RUF Reveals Electric Porsche 911

11 October, 2008 06:18:00

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German tuner specialized in Porsche vehicles, RUF-Automobile, has revealed the eRUF Model A, all-new electric sportscar based on a Porsche 911.

The new electric Porsche 911 is powered by a three-phase electric engine that offers 204 hp (150kW) along with 480 lb.-ft. (650 Nm) of torque, which is capable to hit 100 km/h (62 mph) in under 7 seconds.

The electric Porsche 911 is fueled by 96 lithium iron phosphate battery packs, provided by Axeon, that weights almost 1.200 pounds (550kg), each of them 5.6kg.

According to RUF, each battery cell theoretically delivers 160 amperes of electricity for
one hour under normal temperatures or 1 ampere for 160 hours.

Full charge for the eRUF Model A takes long 10-hours, regenerative braking is included in the package allowing for a range of 155-180 miles (250-320km), with top speed of up to 139 mph (224 km/h).

Tech specs for the eRUF Model A

Drive Performance
· Acceleration 0-60 mph under 7.0 sec (development target)
· Vmax 160 mph, 225 km/h
· Cw 0.28
· Roll resistance 0.014
· Driving range approximately 250 – 320 km, depending on
performance level
· Specific power pick-up 21 kW / 125 km/h

Vehicle data
· Engine power 150 kW / 204 PS
· Max torque 650 Nm 7 0 rpm
· Weight 1910 kg (preliminary data)
· Battery weight 550 kg

Motor Data
· Max torque + 650 Nm to -650 Nm
· Power + 150 kW to -150 kW (peak level)
+ 204 hp to -204 hp
100 kW / 136 hp continuous
· Currency 300 – 420 Volt
· Current level max 550 A
· Rpm level max 5000 rpm
· Operating system brushless three phase alternating current with
permanent magnets

Dimensions
· Diameter 405 mm
· Length 241 mm
· Weight 91 kg
· Specific weight 1,65 kW / kg, 2,25 hp / kg
· Coolant flow 8 L /min max

Battery System
· Type Lithium-Ion, iron-phosphate base
· Manufacturer Axeon plc, GB
· Stored Energy (96 units) 50,72 kWh
· Nominal Voltage 317 Volt
· Maximum discharge 480 A
· Max Power 152,16 kW = 210 PS
· Charging current, max. 16 A
· Charging time 10 hours

Single Battery Cell Data
· Capacity 160 Ah
· Operating voltage 4,25 V charging, 2,5 Volt discharging
· Nominal Voltage 3,3 Volt
· Max. Temperature Level 80 °C
· Life cycle 3000 charging cycles
· Self-discharge under 3 % per month
· Weight per Unit 5,6 kg

Comments (1 posted):

on 12 September, 2009 05:41:55

Porsche RUF-Automobile

Getting there with the eRUF Model A as an electric car.

I can see a similar car could be built with that or better performance with less weight - costs with fewer batteries ("The electric Porsche 911 is fueled by 96 lithium iron phosphate battery packs, provided by Axeon, that weights almost 1.200 pounds (550kg), each of them 5.6kg.")

The way I see the way to make a electric car that will be more practical, cheaper, and still a fun car to drive. And instead of being a plug-in is to have 4 Electric Motors on each corner of the car along with 4 Batteries in area of motors to power them, plus a 5th for general running equipment and central of balance.

Instead of need of being a plug-in recharge requiring ("Â· Charging time 10 hours") being a self generating of it's own drive through a type of fluid generators with the elements needed within to create power for each motor, plus for the running gear as well.

May take another step up in battery development and electronics, but possible.

Only time for the need to plug-in would be in the case of a drop off in battery performance due to weather and such like.