Variable Automatic Gearbox Multitronic 01J Self
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Modern Design and Control of Automatic Transmission and The
Review Paper doi:10.5937/jaes13-7727 Paper number: 13(2015)1, 313, 51 - 59 MODERN DESIGN AND CONTROL OF AUTOMATIC TRANSMISSION AND THE PROSPECTS OF DEVELOPMENT Dejan Matijević The School of Electrical and Computer Engineering of Applied Studies, Belgrade, Serbia Ivan Ivanković* University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia Dr Vladimir Popović University of Belgrade, Faculty of Mechanical Engineering, Belgrade, Serbia The paper provides an overview of modern technical solutions of automatic transmissions in auto- motive industry with their influence on sustainable development. The objective of the first section is a structural view of specific constructions and control systems of presently used automatic transmis- sions, with emphasis on mechatronics implementation. The second section is based on perspectives of development, by integrating some branches of soft computing, such as fuzzy logic and artificial neural networks in order to create an optimal control algorithm for obtaining a contribution to fuel economy, exhaust emission, comfort and vehicle performance. Key words: Automatic transmission, Mechatronics, Automotive industry, Soft Computing INTRODUCTION which is depended by coefficient of friction and normal load on the drive axle. Lower limitation Almost all automobiles in use today are driven by is defined by maximal speed that vehicle can internal combustion engines, which are charac- reach. Shaded areas between traction forces terized by many advantages, such as relatively through gears are power losses. To decrease good efficiency, relatively compact energy stor- power losses and to be as closely as possible age and high power – to – weight ratio [07]. to the ideal traction hyperbola, the gearbox with But, fundamental disadvantages are: enough gear ratios is needed. -
Audi Exclusive
Audi exclusive More variety. More colour. Audi exclusive. Contents In dialogue: Audi QR codes Leather 04 Audi exclusive line 24 An individual vehicle for Get up close and personal with Audi exclusive: your unique personality. download a QR app to your smartphone, then Wood and inlays 08 Audi exclusive 26 scan in the QR code or paste the following link Colours and paint finishes 12 Audi exclusive concept 38 into your browser: Audi drivers want something special. Audi exclusive allows www.audi.com/exclusivefilm you to transform something special into something truly Manufacturing 16 Audi exclusive leather 40 personal. Inspiration 18 Audi exclusive inlays 42 In the following pages, we’d like to demonstrate the Our customers 20 Audi exclusive customised paint finishes 44 extent to which Audi exclusive can cater to your individual preferences. How we turn your dream colour into a paint Audi Sport light-alloy wheels 46 finish. How we turn a striking wood into an interior inlays. And a fine leather into your favourite seat. Stay individual. Stay exclusive. When covering seats or interior elements with leather, we know that certain steps are best left to expert craftsmen. The look. The feel. Always striking. Leather is a unique product of nature. Its very touch and feel triggers a relaxing sensation – and also raises the prospect of a trip to remember. Laying eyes on it is always a pleasure: its soft texture seems to gleam in the light. As a seat in your Audi, a piece of leather becomes synonymous with exclusive comfort. No two pieces are alike – a fact which fits perfectly with the Audi exclusive philosophy. -
Analysis and Simulation of a Torque Assist Automated Manual Transmission
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by PORTO Publications Open Repository TOrino Post print (i.e. final draft post-refereeing) version of an article published on Mechanical Systems and Signal Processing. Beyond the journal formatting, please note that there could be minor changes from this document to the final published version. The final published version is accessible from here: http://dx.doi.org/10.1016/j.ymssp.2010.12.014 This document has made accessible through PORTO, the Open Access Repository of Politecnico di Torino (http://porto.polito.it), in compliance with the Publisher's copyright policy as reported in the SHERPA- ROMEO website: http://www.sherpa.ac.uk/romeo/issn/0888-3270/ Analysis and Simulation of a Torque Assist Automated Manual Transmission E. Galvagno, M. Velardocchia, A. Vigliani Dipartimento di Meccanica - Politecnico di Torino C.so Duca degli Abruzzi, 24 - 10129 Torino - ITALY email: [email protected] Keywords assist clutch automated manual transmission power-shift transmission torque gap filler drivability Abstract The paper presents the kinematic and dynamic analysis of a power-shift Automated Manual Transmission (AMT) characterised by a wet clutch, called Assist-Clutch (ACL), replacing the fifth gear synchroniser. This torque-assist mechanism becomes a torque transfer path during gearshifts, in order to overcome a typical dynamic problem of the AMTs, that is the driving force interruption. The mean power contributions during gearshifts are computed for different engine and ACL interventions, thus allowing to draw considerations useful for developing the control algorithms. The simulation results prove the advantages in terms of gearshift quality and ride comfort of the analysed transmission. -
How Automatic Transmissions Work by Karim Nice
How Automatic Transmissions Work by Karim Nice Contents 1. Introduction to How Automatic Transmissions Work 2. Purpose of an Automatic Transmission 3. The Planetary Gearset 4. Planetary Gearset Ratios 5. Compound Planetary Gearset 6. First Gear If you have ever driven a car with an automatic transmission, then you know that there are two big differences between an automatic transmission and a manu al transmission: There is no clutch pedal in an automatic transmission car. There is no gear shift in an automatic transmission car. Once you put the transmission into drive, everything else is automatic. Both the automatic transmission (plus its torque converter) and amanual transmission (with itsclutch) accomplish exactly the same thing, but they do it in totally different ways. It turns out that the way an automatic transmission does it is absolutely amazing! In this article, we'll work our way through an automatic transmission. We'll start with the key to the whole system: planetary gearsets. Then we'll see how the transmission is put together, learn how the controls work and discuss some of the intricacies involved in controlling a transmission. Purpose of an Automatic Transmission Location of the automatic transmission. Just like that of a manual transmission, the automatic transmission's primary job is to allow the engine to operate in its narrow range of speeds while providing a wide range of output speeds. Without a transmission, cars would be limited to one gear ratio, and that ratio would have to be selected to allow the car to travel at the desired top speed. -
2007 Scheduled Maintenance Intervals Miles (In Thousands) 5/25/45/65/85/105 15/55/95 35/75 Kilometers (In Thousands) 8/40/70/100/130/160 25/85/145 55/115
2007 Scheduled Maintenance Intervals Miles (in thousands) 5/25/45/65/85/105 15/55/95 35/75 Kilometers (in thousands) 8/40/70/100/130/160 25/85/145 55/115 Engine Oil – change oil and replace filter l l l Wiper/Washer/Headlight Washer – check adjustment and function, add fluid if necessary l l l Tires and Spare – check for wear and damage, check pressure l – check for wear and damage, check pressure and renewal date of l l tire set (where applicable) Tires – rotate l 5K only Service Reminder Display – reset l l l Brake System – check for damage, leaks, pad thickness, fluid level l l l Wiper Arm Pivot Points – lubricate l l l Cooling System – check level, add if necessary l l Exhaust System – check for damage and leaks l l Engine On-Board Diagnostics – check fault memory l Except Audi Q7 l Except Audi Q7 Engine Compartment – check for leaks l l Battery – check and replace if necessary l l Dust and Pollen Filter – replace l l Automatic Transmission and Final Drive – check for leaks l l Manual Transmission and Final Drive – check for leaks l l DSG (direct shift gearbox) – change oil and replace filter element l A3 only Haldex Clutch – change oil l A3 only Sunroof – clean guide rails and lubricate rails with grease spray l l Front Sunroof Drains (where applicable) – open sunroof to check front water drain l and clean if necessary (U.S. only) Plenum Panel – remove cover to plenum panel to check water drains and clean l A4, A4 Avant, A4 Cabriolet, S4, S4 Cabriolet, A6, A6 Avant, if necessary (U.S. -