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ZF GETRIEBE N.V. SINT-TRUIDEN - Description Automatic Gearbox VT1F.pdf

July 12, 2009 · Filed Under Others  · Tags: ,

Author: Davy Geuns, June 2003, the VT1F automatic gearbox built by ZF GETRIEBE N.V. SINT-TRUIDEN (Belgium) and commonly used by MINI One and MINI Cooper, although these not the only cars which use the ZF VT1 Continuously Variable Transmission.

Taken from Introduction: The stepless shifting pattern of the transmission provides a very comfortable drive, as well as having full vehicle performance, available at any time.

The advantages of using an automatic transmission of this type are:

  • Low engine revolutions at constant speeds.
  • Improved emission control/fuel consumption.
  • Low noise, vibration and harshness levels.
  • Smooth acceleration.
  • Flexible driving on mountain roads.

Contents:

  • I. General Description VT1F
    • Introduction
    • Conventional Autom. Transmission vs. Continuously Var. Transmission
    • Basic Principles of Continuously Variable Transmission
    • Shift Positions
    • Functionality in Park and Neutral
    • Normal Operation
    • Transmission Communication
    • Related Car Components
    • Towing of the Vehicle
    • Drain and Refill
  • II. Transmission Layout
    • Group One – Mechanical Torque Flow
    • Group Two – Control System
    • Group Three – External Connections
  • III. Strategies
    • Behaviour in Specific Situations
    • CVT Software
    • Transmission Reset and Reference
  • IV. Adaptation Procedures

Pictures:

  • Gearbox and selector mechanism
  • CVT Box
  • Bell Housing
  • Variogram 4 step automatic transmission and CVT Transmission.
  • Pulley positions in high ratio (overdrive)
  • VT1F gear lever & M+ /-
  • Parking lock
  • VT1F selector lever mechanism
  • Torsional damper
  • VT1F transmission Layout
  • Planet gears
  • Planetary gear set showing clutch plates
  • Steel Drive belt
  • Crown wheel & pinion
  • Differential assembly
  • Pulleys & gear train
  • Oil pump complete
  • Pitot tube ghosted inside cover
  • Sensing shoe in box
  • Switch & selector mechanism
  • Secondary speed sensor in gearbox
  • Gear selection cable to gearbox rod

This pdf material is available FREE at lib.ucdavis.edu website, we merely collect the information, we are neither affiliated with the author(s), the website and any brands nor responsible for its content and change of content. (Read our disclaimer here or here before you download the document from the website written above by clicking the below link).

Download free ZF GETRIEBE N.V. SINT-TRUIDEN - Description Automatic Gearbox VT1F.pdf (31 pages pdf file, 1.4 MB).

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