German company RUF Automobile is developing various electric-powered sports vehicles based on the Porsche 911 for the purpose of running field tests of electric vehicles in real life situations. The first ten eRUF vehicles, manufactured in cooperation with Siemens AG, will be presented in the first half of 2011.
The project is supported by the German Federal Ministry of the Environment for whom the results of the field tests relating to different battery and power-train concepts are of particular interest. For this purpose, all vehicles are equipped with on-board data logging systems.
The following vehicle specifications are being manufactured for the purpose of the above mentioned field tests:
1. Single Motor Concept
- Base vehicle, Porsche 997 Carrera
- Electric motor (180kW) and inverter from Siemens AG
- Porsche production gearbox used for speed reduction
- Lithium-ion batteries with an energy capacity of 29kWh
- Integrated charger, DCDC-converter, plug, socket and charging cable
- Interior heating
- Data recording unit for analysis and documentation of the charging/discharging, journey and component data
- Driving range approximately 150km, maximum speed about 220km/h, acceleration from 0 to 100km/h in about 7 seconds
2. Twin Motor Concept with 2-speed Gearbox
- Base vehicle, Porsche 997 Carrera
- Two transversely mounted Siemens synchronous electric motors (250kW) with double inverters
- Automatic 2 speed gearbox, limited slip differential
- Liquid cooled and heated lithium ion battery with an energy capacity of 36,6kWh
- Integrated charger, DCDC-converter, plug, socket and charging cable
- Interior heating
- Data recording unit for analysis and documentation of the charging/ discharging, journey and component data
- Driving range approximately 200km, maximum speed about 220km/h, acceleration from 0 to 100km/h in about 5 seconds
3. Twin Motor concept with Torque Vectoring
- Base vehicle, Porsche 997 Carrera
- Two transversely mounted Siemens synchronous electric motors (250kW) with double inverters
- Two seperate angular bevel gearboxes for independent rear wheel drive
- Liquid cooled and heated lithium ion battery with an energy capacity of 36.6kWh
- Charging via inverter, DCDC-converter, plug, socket and charging cable
- Iinterior heating
- Data recording unit for analysis and documentation of the charging/discharging, journey and component data
- Driving range approximately 200km, maximum speed about 180km/h, acceleration from 0 to 100km/h in about 5 seconds
All eRUF field test vehicles receive an individual technical approval certificate from the German inspection agency (TÜV). Expect to hear more about these vehicles at the Geneva Motor Show.
This went from really interesting to really old news once Porsche and Tesla took incredible leaps towards actual production. If they are going to do it – they need to beat Porsche. They are moving at an agonizingly slow pace.
What would a range extender do?.