Alternative Drivetrains Volkswagen Group s Solutions for Sustainable Mobility

Transcription

1 Alternative Drivetrains Volkswagen Group s Solutions for Sustainable Mobility Prof. Dr. Wolfgang Steiger Group External Relations Future Technologies E-mobil BW Technologietag Stuttgart, Germany

2 Why do we need sustainable mobility? Climate change emissions Smog and noise in megacities The finite nature of fossil fuels 2

3 Volkswagen XL1 Aerodynamics cd = Curb weight 795 kg Top speed 160 km/h Fuel consumption (NEDC) 0.83 l/100 km CO2 emissions (NEDC) 21 g/km All-electric range 50 km Total range approx. 500 km 3

4 The drive unit of the XL1 TDI engine Electric motor DSG gearbox Displacement Output/at rpm Torque/rpm Weight: 830 cm³ 35 kw/ 4,000 rpm 120 Nm/ 2,000 rpm 72 kg Type Output Torque Weight Synchronous, permanent magnet 20 kw 140 Nm 30 kg 7 forward gears Dry clutch Magnesium casing 4

5 Sustainable mobility: Volkswagen s fuel and drive train strategy Renewable energy sources CO 2 -neutral electricity CO 2 -neutral fuels Conventional energy sources Petroleum CNG 5

6 Carbon dioxide: Conventional drive technologies are not enough Fleet CO 2 emissions Technologies to increase CO 2 efficiency EU27 Fleet value in g CO 2 /km Optimizing conventional drive trains CO 2 efficiency measures in the vehicle Using alternative drive technologies + + PHEV EU27 Fleet value in 2012 EU27 Fleet value in g CO 2 /km 95 g CO 2 /km Technologies and energy sources 6

7 Volkswagen Group: Technologies to suit every need What Volkswagen customers in Germany use their cars for most of the time (i.e., >75% of the time) Golf TSI BlueMotion Golf TDI BlueMotion Jetta Hybrid eco up! Panamera Hybrid Q5 Hybrid 7

8 Golf TDI BlueMotion 3,2 l/100km, 85gCO2/km 8

9 Measures to improve CO 2 efficiency Engine Gearbox Combustion system Lightweight design Operational strategy Friction Dual-clutch gearbox High-performance combustion system Combined turbo- and supercharging Ignition systems Variable valve train Variable compression ratio Alternative materials Lightweight design through optimized structures Active Cylinder Management Optimizing engine mapping Engine off while coasting Downspeeding NVH at low rpm Surface coating Thermal management Utilizing exhaust heat Gear-ratio spread Efficiency Performance when pulling away Low-rpm solution 9

10 High-performance CI engines High-performance combustion system 100 kw / liter High-pressure fuel injection system 2,500 to 3,000 bar Variable valve train optimized charge exchange process Combination High-/ low-pressure EGR Combined turbo- and supercharging ebooster Cranktrain assembly high peak pressures 10

11 10-speed dual-clutch gearbox Ride comfort Suitable for high-performance engines > 500 Nm Performance when pulling away Driving pleasure Wide gear-ratio spread (>10) Efficiency

12 Evolution of renewable energy pathways Source/Feedstock Intermediate energy carrier Energy carrier for mobility Vegetable oil Gasoline and Diesel Glucose Solar energy Syngas Gas green electricity CO 2 + sunlight Battery and fuel cell 12

13 The new CNG-powered vehicles: Advantages of CNG in terms of CO 2 emissions Gasoline C 8 H 18 (ISO-Oktan) 2 C 8 H O 2 16 CO H 2 O Potential reduction in CO 2 emissions in consideration of the heating value Methane 1 kg of gasoline generates 3.1 kg of CO 2 (Heating value 41.0 MJ/kg) -25% CNG CH 4 (Methan) CH O 2 CO H 2 O 1 kg of methane generates 2.75 kg of CO 2 (Heating value 47.7 MJ/kg) 13

14 Volkswagen eco up!, Volkswagen Golf TGI & Audi A3 g-tron 14

15 Electrifying the Drive systems at Volkswagen Electric vehicle Micro hybrid/ start-stop Mild hybrid Full hybrid (HEV) Plug-in hybrid (PHEV) Range extender (RE BEV) Battery vehicle (BEV) Fuel cell (FCEV) 1) km km 2 km km km Electric range Electric motor Boost Internal combustion engine + power generator 1) >

16 Volkswagen Group: Technologies to suit every need What Volkswagen customers in Germany use their cars for most of the time (i.e., >75% of the time) Golf TSI BlueMotion Golf TDI BlueMotion Jetta Hybrid Golf blue-e-motion e-up! eco up! Panamera Hybrid Q5 Hybrid 16

17 Volkswagen e-up! 17

18 The electric drive system of the e-golf Electric machine Permanent magnet synchronous motor Max. power output Constant power output Max. torque Constant torque Range 85 kw 50 kw 270 Nm 160 Nm 175 km 18

19 Combined Charging System One System for All Easy Handling and Widely Spread User Acceptance Uniform, open and standardised solution as future-proof investment Simple Safe Flexible No need for variants Charging Time High Power DC 15 min Ultra Fast 1 h Speed of Charging Type 2 Core 8 h Basic 19

20 Volkswagen Group: Technologies to suit every need What Volkswagen customers in Germany use their cars for most of the time (i.e., >75% of the time) Golf TSI BlueMotion XL1 Golf TDI BlueMotion Jetta Hybrid Golf PHEV Golf blue-e-motion e-up! Porsche Panamera S e-hybrid eco up! Panamera Hybrid Audi A3 e/tron Q5 Hybrid 20

21 Audi A3 e-tron 1.4-l 110-kW TSI engine with aluminum cylinder block and crankcase Lithium-ion battery 96 cells, 352 V, 8.8 kwh Power electronics including DC-DC converter Dual clutch gearbox DQ400E with integrated electric machine (80 kw) 21

22 Assembly kit for hybrid drive systems Engine Electric machine Gearbox Battery Power electronics 2-cylinder in-line TDI HEM 20 DQ200E HEV 3-cylinder in-line TSI/TDI HEM 60 4-cylinder in-line TSI/TDI HEM 80 DQ400E PHEV Power electronics 22

23 The MQB plug-in drive train with the DQ400E gearbox Technical specifications IC engine Electric motor System output System torque HV battery capacity All-electric range 110 kw / 250 Nm 80 kw / 330 Nm 150 kw 350 Nm 8.8 kwh approx. 50 km 23

24 Volkswagen is electrifying all vehicle classes beyond BEV PHEV PHEV VW e-up! Audi A3 Audi A6 HEV HEV HEV BEV PHEV PHEV VW Touareg Audi Q5 VW Jetta VW e-golf VW Golf Audi A8 HEV HEV HEV PHEV PHEV Porsche Cayenne S Porsche Panamera S Audi A6 HEV Porsche 918 Spyder Porsche Cayenne PHEV Derivatives of other Group brands Audi A8 PHEV VW Passat Porsche Panamera PHEV Audi Q7-24 -

25 Volkswagen Group s environmental objectives as presented at the Geneva Motor Show Company The most environmentally friendly automotive manufacturer in the world Product Production 25% less energy, water, waste & CO 2 by % lower emissions through power generation and supply by 2020 Fleet CO 2 emissions in EU27 countries < 95 g/km by 2020 Each new model consumes 10 to 15% less fuel than its predecessor 25

26 Alternative Drivetrains Volkswagen Group s Solutions for Sustainable Mobility Prof. Dr. Wolfgang Steiger Group External Relations Future Technologies E-mobil BW Technologietag Stuttgart, Germany