New Tire Technologies the stony way from the idea to the road. Neue Reifentechnologien der steinige Weg von der Idee auf die Straße

Transcription

1 Reifensymposium Wien 2012 New Tire Technologies the stony way from the idea to the road Neue Reifentechnologien der steinige Weg von der Idee auf die Straße Dr. - Ing. B. Wies, Dipl.-Ing. K. Wiese, Dr. sc. ETH T. Kessel, B. Eng. S. Scholz 25. September, / Dr. B. Wies/ Continental AG

2 New Tire Technologies the stony way from the idea to the road 2 / Dr. B. Wies/ Continental AG

3 Do the tires / vehicles of the future still have contact to the road? 3 / Dr. B. Wies/ Continental AG Continental Reifen Deutschland GmbH

4 Agenda Innovation Principles and Challenges for Tire Industry Innovations without sufficient market success Sidewall Torsion Sensor Old Generation Extended Mobility Systems Recent Successful Innovations New Extended Mobility Systems New Winter Technologies New UHP Technologies virtual product development Summary: Key Factors for successful Innovations 4 / Dr. B. Wies/ Continental AG

5 Product lifecycle small amount High advertising costs Slight acquaintance Increasing brand awareness entrance of competitors first profit battle for market shares slower growth Harder battle for market shares maximum of sales sales decline Start-up losses prices drop profit decline progressive decline in profit end of product lifecycle Time Introduction Phase I Growth Phase II Maturity Phase III Saturation Phase VI Decline Phase V Time 5 / Dr. B. Wies/ Continental AG

6 Challenges for Tires Customer Benefit / / Utility ( Nutzen ) Customer Investment Customer Investment Benefit Low interest product High interest product Customer Budget Customer Budget Benefit Expectations Benefit Expectations Budget 6 / Dr. B. Wies/ Continental AG Low interest product High interest product

7 Innovation / Product development cycle Profitable Business Profit = Sales - Costs = Volume * Price - Costs > 0 7 / Dr. B. Wies/ Continental AG

8 Innovations without sufficient market success 8 / Dr. B. Wies/ Continental AG

9 Sidewall Torsion Sensor Scheme of the Sensor Setup at the Car Amplitude 1 2 Sensor mount Sensors Time difference Magnetic rubber SoD = 1999 Start of Development Time difference = measure for brake/drive torque Amplitude = measure for lateral force Frequency = measure for wheel speed 9 / Dr. B. Wies/ Continental AG

10 Sidewall Torsion Sensor Deformation of the Tire Sidewall wheel load rim tire tangential Tangential Deformation [mm] brake force Simulation: Brake torque 200 Nm Stationary rolling tire Contact patch Tire Angle β [degrees] road 10 / Dr. B. Wies/ Continental AG

11 Sidewall Torsion Sensor Effect of Side-Slip Angle Control via SWT Standard ESP High-Performance ESP with Side Slip Angle Control Angle [ ] Time [sec] Double Lane Change on Snow Arvidsjaur, v 0 =115 km/h Vehicle: BMW 328i, E46 Tires: Conti TS /55R16 91W Angle [ ] Time [sec] Steer angle Side Slip Angle BUT Calculation of side slip angle via SWT signals can be simplified and substituted by adding steering wheel sensor ESP II 12 / Dr. B. Wies/ Continental AG

12 Sidewall Torsion Sensor SWT (Sidewall Torsion Sensor) Failure because of cost and new idea: Additional tire costs Danger of monopole from OE perspective Additional electronic components add further quality risks Substitute Technology via ESP II: Higher precision control system due to additional sensor input from steering wheel Relevant criteria for success / failure Not relevant 13 / Dr. B. Wies/ Continental AG

13 Old Generation Extended Mobility Systems CWS Conti Wheel System Tire in normal use With inflation pressure Support elements Special Rim Clamping ring Tire puncture Without inflation pressure CWS - 215/40 R470 System Weight: 27,6 kg SoD = / Dr. B. Wies/ Continental AG

14 Old Generation Extended Mobility Systems CWS Conti Wheel System Failure because of industrialization and customer needs: Special rim necessary: market introduction only possible via OEMs Added value for customer too low compared to invest No market entry strategy 15 / Dr. B. Wies/ Continental AG

15 Old Generation Extended Mobility Systems CSR Conti Safety Ring For large sidewall heights the use of self supporting sidewall systems is difficult to realize systems with support ring Tire in normal use With inflation pressure Tire puncture Without inflation pressure For all run flat systems tire pressure monitoring is mandatory, because the tire puncture is not necessarily obvious for the driver. SoD = / Dr. B. Wies/ Continental AG

16 Old Generation Extended Mobility Systems Application limits for different run flat systems evaluation of /65 R17 SSR realized in 2004 Breite Tire width (mm) [mm] /45 R18 SSR 225/55 R17 CSR 235/65 R Aspect Ratio [%] Querschnittsverhältnis (%) 17 / Dr. B. Wies/ Continental AG

17 Old Generation Extended Mobility Systems CSR Conti Support Ring Failure because of market customer needs: Customer feedback: Trend towards lower requirements Too high costs: > 45 per CSR Alternative SSR technology can be extended to CSR sizes e.g. 235/65 R17 18 / Dr. B. Wies/ Continental AG

18 Recent Successful Innovations New Extended Mobility Systems 19 / Dr. B. Wies/ Continental AG

19 New Extended Mobility Systems SSR Self Supporting Run Flat Tire Technology SoD = 1998 Tire in normal use With inflation pressure Tire pressure monitoring sensor Advantages Usage of standard rims Up to 150km service performance in case of inflation pressure loss Tire mounting with standard equipment Disadvantages 10%-15% additional weight 10%-15% worse rolling resistance Subjective comfort rating half a note worse Tire puncture Without inflation pressure 20 / Dr. B. Wies/ Continental AG

20 Recent Successful Innovations SSR Self Supporting Run Flat Tires Success because of: Meeting adapted customer needs km escape function one OE customer strongly pushing market entry 21 / Dr. B. Wies/ Continental AG

21 New Extended Mobility Systems ContiSeal A Self Sealing Tire SoD = 1990 US / 2007 EU ContiSeal Features: Additional air-proof layer in tread area applied after tire curing Seals punctures in tread area caused by objects of up to 5 mm in diameter No influence regarding ride comfort or rolling resistance Mounted on standard rim TPMS/DDS Recommended

22 New Extended Mobility Systems ContiSeal Production Volumes Conti Tires per year VW Passat CC Chrysler 300C VW Passat EOS >16 VW Sharan Seat Alhambra Hyundai Equus SOM Conti 90% Passat Alltrack Kia K FC 2012 FC 2013 FC / Dr. B. Wies/ Continental AG

23 Recent Successful Innovations ContiSeal A Self Sealing Tire Success because of: Meeting customer needs Additional safety without trade off One OE customer strongly pushing market entry 24 / Dr. B. Wies/ Continental AG

24 Successful Innovations Winter Technology 25 / Dr. B. Wies/ Continental AG

25 Recent Successful Innovations ContiIceContact New Stud Retention Technology SoD = 2009 History of stopping distance for different product segments Stopping Distance on Ice (30 0 km/h) 60 m 50 m 40 m 30 m 20 m 10 m 0 m 1952 Winter Reifen Summer Tires All Season Tires Winter Tires Studded Tires Soft Compound ContiIceContact Significant Technology Innovations: Pattern Compound Stud Technology 2020 Year 26 / Dr. B. Wies/ Continental AG

26 Recent Successful Innovations ContiIceContact New Stud Retention Technology Target conflicts for studded tires Ice Grip Road Wear Stud Loss 27 / Dr. B. Wies/ Continental AG

27 Recent Successful Innovations ContiIceContact New Stud Retention Technology Heat treatment via high frequency induction Oscillating circuit Inductor Cooling unit By the usage of induction it is possible to heat up locally and precisely the coated stud 28 / Dr. B. Wies/ Continental AG

28 Technical Highlights Advanced stud technology until 2003 Round stud 2004 Oval stud 2005 Brilliant stud 2010 Brilliant Plus stud SAFETY DRIVING CONTROL Longer grip edges Improved grip on ice and snow due to new stud technology, 11% better braking on ice New stud retention technology 29 / Dr. B. Wies/ Continental AG

29 Technical Highlights - Stud technology better safety and grip ContiIceContact New Stud Retention Technology Target conflict stud ice grip vs. stud retention stud ice grip Brilliant Plus Stud New Stud Retention Technology ContiIceContact CWV2 Brilliant F Pull stud retention New innovative stud retention technology for better safety and grip on ice 30 / Dr. B. Wies/ Continental AG

30 Recent Successful Innovations ContiIceContact New stud Retention Technology Success because of: recognized as big technology step clever lab device for prototype tests Meeting customer needs Additional safety without trade offs Positive cost-utility balance 31 / Dr. B. Wies/ Continental AG

31 Virtual based Development Process for U-UHP Tires to ensure fast and efficient time to market 32 / Dr. B. Wies/ Continental AG

32 Virtual based Development Process for U-UHP Tires Requirement Book Tire Force & Moment Target Setting by Vehicle Dynamics Virtual Development Development Loops Loop 1 / Loop 2 / CSC 5P Validation of Final Product 33 / Dr. B. Wies/ Continental AG

33 Virtual based Development Process for U-UHP Tires Requirement Book, Overall Requirements for new UHP Tire Line Dry Handling/Steering Precision 118 Rolling Resistance 105 Noise 103 Dry Handling/Grip 108 Dry Braking 105 Standard Summer UHP = 100% ContiSportContact 5 P Wear Wet Braking 104 Aquaplaning / Dr. B. Wies/ Continental AG

34 Virtual based Development Process for U-UHP Tires Virtual based Tire Development, Tire Force & Moment Target Setting Tire Characteristics Lateral Force Cornering Stiffness Vehicle Simulation Steering Response Lane Change Cornering Handling Track Vehicle Model Suspension Characteristics Steering Masses, Inertia Cα Load Not o.k. O.k.! Tire Force & Moment Targets 35 / Dr. B. Wies/ Continental AG

35 Virtual based Development Process for U-UHP Tires Virtual based Tire Development, Pattern & Compound stiffness optimization lateral distance [mm] Variant A Variant B spec. pattern stiffness lateral [N/cm 3 ] lateral distance [mm] Target lateral distance [mm] Variant C lateral distance [mm] Variant D lateral distance [mm] 36 / Dr. B. Wies/ Continental AG

36 Virtual based Development Process for U-UHP Tires Virtual based Tire Development, Tire Force & Moment Results Loop 1 Rear Axle Front Axle Loop 2 CSC 5P 37 / Dr. B. Wies/ Continental AG

37 Virtual based Development Process for U-UHP Tires Validation of final Product, Evaluation at race track Tracks and measures 1) Lateral dynamic potential Curves left - right steering wheel angle lateral acceleration sideslip angle section time 2) Braking potential ABS Braking section max. deceleration Computer center Evaluation area Braking Lateral wireless data transmission to server telemetric data reception from cars 38 / Dr. B. Wies/ Continental AG

38 Virtual based Development Process for U-UHP Tires Validation of final Product, Lateral Performance at race track 1000 Lateral Potential Left Lateral Potential Right 1000 Lateral accel. not corrected for vehicle roll Loop 1 Loop 2 CSC 5P Occur. Ay Occur. Ay Ay [m/s²] sporty drivers on race track Ay [m/s²] / Dr. B. Wies/ Continental AG

39 Recent Successful Innovations New development process for U-UHP Success because of: Faster time to market Higher precision in meeting customer needs Considering complete development cycle 40 / Dr. B. Wies/ Continental AG

40 Key Factors for Successful Innovations 41 / Dr. B. Wies/ Continental AG

41 The Kano Model of Customer Satisfaction iphone Exciters and Delighters Absent - not often articulated - customer tailored - inspiring Quality or Performance not achieved Performance category is most relevant for tires 42 / Dr. B. Wies/ Continental AG High Satisfaction Delighted Satisfaction Low Satisfaction Disgusted Fulfillment level Performance - articulated - specific - measurable - technically Threshold / Basic - implicitly - self-evident - not articulated - obvious Buying decision Toilet paper Fully Implemented High Quality Performance Wirtschafts Universität Wien

42 Criteria Driving the Buying Decision in Tire Industry Grip Green Safety Ecology Buying Decision for Tires Economy Costs UHP Extreme Lowest Overall driving costs (RR, Wear)

43 Innovation Portfolio matrix Question marks Develop Form Question marks Bring Up Product life cycle Stars Investing Stars Dogs Eliminate Dogs Cash Cows Cash Cows Milk Relative market share Source: Boston Consulting Group 44 / Dr. B. Wies/ Continental AG

44 Portfolio matrix for Tires Green Product life cycle UUHP 4x4 UHP HP 13 tires Product at end of life cycle share Relative market share 45 / Dr. B. Wies/ Continental AG

45 46 / Dr. B. Wies/ Continental AG

46 Conclusion Also the cars of the future do need innovative tires! Thank you very much for your attention! 47 / Dr. B. Wies/ Continental AG Continental Reifen Deutschland GmbH