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Lepelletier Gearset

Lepelletier Gearset. 6-Speed Gearset. Lepelletier Gearset Transmissions. Transmissions that use a Lepelletier geartrain include: Aisin AW: TR-6, TF-60SN, & TF80SN Ford: 6R60 & 6R75 General Motors: 6L80 ZF: 6HP19 & 6HP26. Transaxle & Transmission. FWD Transaxle RWD Transmission.

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Lepelletier Gearset

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  1. Lepelletier Gearset 6-Speed Gearset Tom Birch, 8/06

  2. Lepelletier Gearset Transmissions Transmissions that use a Lepelletier geartrain include: Aisin AW: TR-6, TF-60SN, & TF80SN Ford: 6R60 & 6R75 General Motors: 6L80 ZF: 6HP19 & 6HP26 Tom Birch, 8/06

  3. Transaxle & Transmission FWD Transaxle RWD Transmission This is a compact 6-speed geartrain with FWD and RWD configurations, and it uses only six control devices. Tom Birch, 8/06

  4. Schematic, Geartrain Simple Gearset Ravigneaux Gearset The Lepelletier design uses a simple gearset to drive a Ravigneaux gearset. Tom Birch, 8/06

  5. Gearset Simple Gearset Ravigneaux Gearset • The simple gearset portion serves as a reduced-speed input in first through fifth and reverse gears. • The Ravigneaux part of the gearset is similar to the gearset used in a Ravigneaux 4-speed transmission. Tom Birch, 8/06

  6. Gear Ratios Tom Birch, 8/06

  7. Schematic, Geartrain 2 Ring Gear Carrier Long pinions Ring Gear Short Pinions Sun Gear Large Sun Gear Small Sun Gear Tom Birch, 8/06

  8. Schematic, Control Devices C3 C1 B1 B2 C2 The nomenclature for many modern transmissions uses the terms C for clutch (driving member) and B for brake (holding member). Tom Birch, 8/06

  9. Variation F1 Some Lepelletier geartrains include a one-way clutch (F1) to allow a freewheeling 1-2 shift. Tom Birch, 8/06

  10. Clutch Schedule This is a synchronous, overlap geartrain. Tom Birch, 8/06

  11. Schematic, Neutral All clutches are released. Input Reaction Output Tom Birch, 8/06

  12. Schematic, 1st Gear C1 Applied B2 Holding Ratio: 4.15:1 C1 drives the small sun gear at a reduced speed in 1st, 2nd, 3rd, and 4th gears. Input Reaction Output Tom Birch, 8/06

  13. Schematic, 2nd Gear C1 Applied B1 Holding Ratio: 2.37:1 Input Reaction Output Tom Birch, 8/06

  14. Schematic, 3rd Gear C1 Applied C3 Applied Ratio: 1.56:1 Input Reaction Output Tom Birch, 8/06

  15. Schematic, 4th Gear C1 Applied Ratio: 1.15:1 C2 Applied Input Reaction Output Tom Birch, 8/06

  16. Schematic, 5th Gear C3 Applied Ratio: 0.86:1 C2 Applied Input Reaction Output Tom Birch, 8/06

  17. Schematic, 6th Gear B1 Holding Ratio: 0.69:1 C2 Applied Input Reaction Output Tom Birch, 8/06

  18. Schematic, Reverse C3 Applied B2 Holding Ratio: 3,39:1 Input Reaction Output Tom Birch, 8/06

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