Downloaded 230 times
Uploaded bySam Cheng
Lubrizol atf
This document discusses automatic transmission fluids (ATF). It provides information on ATF function, formulation, market drivers influencing ATF development, and updates on major automaker ATF specifications. Specifically, it notes that improved fuel economy and emissions standards are driving transmission designs toward more efficient options like CVTs and more speeds. As a result, ATFs require enhanced properties like lower viscosity and improved anti-wear and oxidation performance to support advanced transmission technologies. The document also summarizes that ATF applications will continue diversifying to meet specific transmission needs.
More Related Content
Lubrizol atf
- 1. Automatic Transmission Fluids 08-27-03 ©2009 The Lubrizol Corporation AT100-001
- 2. Automatic Transmission Fluids Agenda • • • • • 08-12-08 Functionand Formulation of ATF AT Market Drivers AT Designs North American OEM Updates Summary © 2009 The Lubrizol Corporation ATTemp-009
- 3. Mechanics Automatic Transmission Technology ortorque converter Driveline image courtesy of www.HowStuffWorks.com 10-30-08 © 2009 The Lubrizol Corporation AT101-041
- 4. Mechanics Automatic Transmission Technology AutomaticTransmission Components and How they Work Torque Converter Hydraulic System Reproduced by kind permission of ZF Friedrichshafen AG 02-10-09 © 2009 The Lubrizol Corporation AT101-042
- 5. Function of ATF ATFPerformance -ANTI-SHUDDER -OXIDATIVE STABILITY -COMPONENT COMPATIBILITY 10-30-08 © 2009 The Lubrizol Corporation AT102-003
- 6. Formulation of anATF Base Fluid VM Performance Additive 05-21-07 Higher severity No Group I base oils allowed! Group II, II+ and III base oils Predominately Group II+ & III Shear stability Next generation performance Shudder resistant © 2009 The Lubrizol Corporation AT103-014
- 7. Formulation of anATF Typical Automatic Transmission Fluid Component % Volume Trend Additive package Friction modifiers Oxidation inhibitors Detergents/dispersants Corrosion inhibitors Anti-wear Seal swell agents Anti-foam 10-12 % Friction Durability/ Shudder Resistance Sludge Resistance Oxidation Resistance/Friction Shudder Resistance Decreased Gear Wear Better Seal Compatibility Viscosity modifier 3–8% Very Shear Stable Base oil 80 – 90% Group II & III base oils; Better Low Temp Red dye 250 PPM Red Dye 08-12-08 © 2009 The Lubrizol Corporation AT103-002
- 8. Formulation of anATF Lubrizol Friction Modifier Systems Type Low Static Friction (Traditional) High Static Friction (LZ Generation III) Properties: Low static μ Higher surface saturation More thermally stable Advantages: Controls green friction Friction durability Excellent anti-shudder Excellent torque capacity Simplistic Structure: Two-tail structure saturates surface; leads to higher static friction 02-10-09 © 2009 The Lubrizol Corporation AT103-016
- 9. Formulation of anATF Dialing in the Correct Friction Performance High Static Friction Low Static & Torque Converter Shudder FM 1 A FM Medium Static Friction & Stability De terg ent 6 LOW µ FM Low Static Durability HIGH µ 3 FM 2 FM 5 FM Anti-shudder Durability FM 4 High Static Durability 1 Friction Stability Running in & Shift Quality Mixtures of high μ and low μ are customized for a variety of friction materials. 02-10-09 © 2009 The Lubrizol Corporation
- 10. ATF Market Trends 02-28-03 ©2009 The Lubrizol Corporation AT116--001
- 11. Market Trends ofATF Market Drivers • Fuel economy • Transmission requirements becoming more demanding − Increased driver comfort & reliability • Reduced maintenance costs − Fill for life fluids 05-21-07 © 2009 The Lubrizol Corporation AT116-042
- 12. Market Trends ofATF CAFE Cost to OEM • Heightened pressure to increase lightduty CAFE − CAFE is sales –weighted average fuel economy rating − 27.5 mpg for passenger car * − 22.2 mpg for light duty trucks * • Each 0.1 mpg over CAFE limit carries $5.50 fine per vehicle 1.0 mpg…..$55 per vehicle * * www.nhtsa.dot.gov 08-12-08 © 2009 The Lubrizol Corporation AT116-043
- 13. Market Trends ofATF Fuel Economy Contribution of AT • • 10-30-08 Design a more efficient transmission − Lighter − More aggressive lock-up (ECCC) − Utilize a lower viscosity fluid Operates at its most efficient gear ratios − 6 & 7 Speed transmission − CVT or IVT − AMT − DCT © 2009 The Lubrizol Corporation AT116-044
- 14. Market Trends ofATF Low Viscosity Fluids • Typical ATF − 7.0 – 7.5 cSt @ 100° C • Low viscosity ATF − 5.5 – 6.0 cSt @ 100° C • Theoretical Gain = 0.1 mpg • Small change for driver, but significant for CAFE 08-12-08 © 2009 The Lubrizol Corporation AT116-045
- 15. Automatic Transmission Fluids TwoMain Product Types Standard Viscosity (>6.8 cSt) − − − − − 05-21-07 Chrysler ATF+4 Ford Mercon V Toyota T-IV Honda Z-1 Nissan Matic-J Low Viscosity (5.5 – 6.5 cSt) − − − − − © 2009 The Lubrizol Corporation MB NAG-2 Ford Mercon SP Ford LV GM Dexron-VI Toyota WS ATTemp-017
- 16. Market Trends ofATF Automatic Transmission Designs are Changing Market Driver – Reduced Emissions and Improved Fuel Economy 1948 - Present Conventional or Stepped Transmission (AT) • • • 09-28-05 Mid 1990’s Belt Drive Continuously Variable Transmission (CVT) 2002 6-Speed Conventional Automatic Transmission (AT) 2004 Dual Clutch Transmission (DCT) Conventional Stepped Automatics − Lock-up AT − More available speeds (6 & 7 Speed) Continuously Variable Transmissions Automated Manuals − Dual Clutch © 2009 The Lubrizol Corporation AT116-020
- 17. Market Trends ofATF Transmission Designs Efficiencies 100 Improving Fuel Economy % Efficiency 95 90 85 04-08-05 T A M D C T 6S pe ed A T C V A T 5S pe ed A d pe e 4S AI-May 2002 AEI-May 2002 T 75 T 80 © 2009 The Lubrizol Corporation AT116-030
- 18. Driveline Hardware, Fluidand Market Driver Overview Overview of Driveline Components Estimated Global Market Share (%) for Transmission Types Transmission Type 2010 2015 Geographic Region MT 50 47 43 Europe, China, India AT 46 41 37 North America Japan and Korea CVT <1 6 7 Asia Pacific DCT <1 4 10 Europe AMT 02-10-09 2005 2 2 3 Europe © 2009 The Lubrizol Corporation AT116-060
- 19. Formulation of anATF Unique Automatic Transmission Fluid Component Friction modifiers Anti-wear Oxidation inhibitors Detergent/dispersants Corrosion inhibitors Seal swell agents Anti-foam ATF Paper on steel CVT (versus ATF) Steel-on-steel (Paper on steel) EP/AW similar to MTF Paper on steel but very strong anti-shudder performance for wet start clutch EP/AW similar to MTF (synchronizers, more bearings than ATF) Similar to ATF Need improved anti-foam Viscosity modifier Very high shear stability Red dye Not included in CVTF 02-10-09 DCT (versus ATF) © 2009 The Lubrizol Corporation More shear stable than ATF Not usually included in DCTF AT103-002
- 20. ATF Specification Update SFand OEM FF 02-10-09 © 2009 The Lubrizol Corporation ATTemp-027
- 21. Automatic Transmission Fluids SpecificationTimeline 1992 Revised MERCON Ford Type A/B Type F/G 1987 MERCON 2004 Upgraded MERCON & MERCONV Released MERCON-SP 2005 MERCON-C 1995 MERCON-V 2007 MERCON LV 1960 1950 1970 1967 DEXRON 1957 TASA General Motors 10-30-08 1973 DEXRON-IID 1980 1990 1990 DEXRON-IIE 1993 DEXRON-IIIF 2000 1997 DEXRON -IIIG 2010 2005 DEXRON-VI 2003 DEXRON-IIIH 1995 DEXRON-IV (never formally released) © 2009 The Lubrizol Corporation ATTemp-028
- 22. General Motors ATFSpecifications Factory Fill (FF) since 2006 • DEXRON VI • Low viscosity fluid (6.0 cSt) • Improved low temp performance, shear, and friction stability 08-13-08 Service Fill (SF) • DEXRON VI • Obsolete SF Specs − Dex II (sold in Europe and Latin America) − Dex IIIG (Dec 2006) − Dex IIIH (Dec 2007) © 2009 The Lubrizol Corporation AT110-053
- 23. Ford Motor ATFSpecifications Service Fill (SF) Factory Fill (FF) since 2007 • MERCON LV (FWD) • MERCON LV − Low viscosity fluid (6.0 cSt) • MERCON V − Each additive supplier − Improved low temp allowed single DI performance, shear and − Lubrizol 9680 series friction stability • MERCON SP − RWD 5 and 6 speed • 02-10-09 Obsolete SF Specs − MERCON (July 1, 2007) © 2009 The Lubrizol Corporation AT112-038
- 24. Chrysler ATF Specifications FactoryFill (FF) since 2003 • ATF+4 Service Fill (SF) • MOPAR ATF+4 − Lubrizol 3300A − All major oil marketers • Certification through program testing • Obsolete SF specs − ATF+3 (2006) 10-30-08 © 2009 The Lubrizol Corporation AT115-022
- 25. Asia-Pacific OEM Highlights Toyota ATF: Hyundai T-IV(4/5 speed ATs, 7 cSt) WS (6 speed ATs, 5.5 cSt) CVTF: TC ATF: SP-III (7 cSt) CVTF: coming Mistubishi Honda ATF: Z-1 (7 cSt) CVTF: HMMF ATF: SP-III (7 cSt) CVTF: SP-III Nissan ATF: Matic J (7 cSt) CVTF: NS-2 DCTF: new 08-13-08 © 2009 The Lubrizol Corporation AT122-033
- 26. European OEM Highlights Volkswagen-AudiGroup (VAG) ATF: LT71141 (5-speed ZF, 7 cSt) 1375.4 (6-speed ZF, 6.5 cSt) DCTF: Direct Shift Gearbox (DSG) DaimlerBenz ATF: NAG-2 V-sport (6.5 cSt) BMW ATF: 1375.4 (6-speed ZF, 6.5 cSt) DCTF: Getrag transmission 08-13-08 © 2009 The Lubrizol Corporation AT122-034
- 27. Lubrizol SF ATFs DexIID Dex III Mercon 9636G Ccurrent Merc V ZF/Voith / MAN 9678 Old Merc V JASO Zone 1 9680 9684 Zone 2 7907 9679 Zone 4 1067 9636G 9678 02-10-09 © 2009 The Lubrizol Corporation AT124-047
- 28. Market Trends ofATF Summary of Global ATF Trends • • 08-12-08 Improved fuel economy and reduced emissions are driving transmissions trends toward higher efficiency transmission options − Asia Pacific region: CVT − Europe: AMT/DCT − North America: 6-Speed AT The most recent transmission requirements suggest that specialized fluids will be required in the future − Lower viscosity, higher shear stability, and improved anti-wear performance − Better low temperature properties − Increased oxidation performance − Extended anti-shudder durability © 2009 The Lubrizol Corporation AT116-053
- 29. Market Trends ofATF Summary of Global ATF Trends • Transmission applications are changing with consumer demand • Expect the proliferation of ATFs to continue well into the future as fluids are tailored to the specific transmission design to enable maximum gains in system performance • Many OEM’s moving toward “genuine fluid” approach • Oil marketers looking for simplified product lines to meet a range of AT applications. Lubrizol will provide our customers with a range of products to meet their increasingly rigorous requirements. 08-12-08 © 2009 The Lubrizol Corporation AT116-057
- 30. © 2009 TheLubrizol Corporation