Insights Transmission Home News Education & Tools

Transmission Insights

Placeholder
PLANETARIES

December 11, 2014

New DCTs Aim to Restore Appeal

Honda and Volkswagen have fired the opening salvos in a gearbox war which aims to restore the customer appeal of dual clutch transmissions. This move is especially timely in North America, where a new generation of [...]


Placeholder
Transmissions

October 15, 2014

ZF Unveils TraXon Modules

Hybrid and dual clutch transmission modules are now offered to the heavy truck sector as options with ZF’s TraXon modular platform. In addition to the conventional torque converter and dry clutch modules, this basic, [...]


Placeholder
DCTs

August 7, 2014

Volvo DCT 1st in Heavy Sector

It has long been argued that the dual clutch gearbox, with its ability to power-shift under load and avoid interruptions in tractive torque, is ideally suited to the operating profile of a heavy truck. These weighty vehicles [...]


Placeholder
MANUALS AND AMTs

June 23, 2014

MTF: Is Thinner Really Better?

Despite the trend toward automatics, manual transmissions in passenger cars are here to stay, says Lubrizol’s Gareth Brown: “Although the market share is diminishing, the manual transmission is still a key technology, [...]


Placeholder
Transmissions

May 9, 2014

China & Korea Oil Change Survey

As the worldwide market for passenger cars, components and services becomes increasingly globalized, manufacturers and suppliers face more than just the technical challenges of engineering their systems for such a broad [...]


Placeholder
CVTs

February 25, 2014

DCTs Get Smarter: Wet Clutch Gains Ground

With the right engine and transmission combination, lighter cars will not need hybrid power to meet Europe’s 2020 CO2 targets, says Getrag’s chief technology officer in the second part of our wide-ranging [...]


Placeholder
DCTs

January 22, 2014

New Aisin Transmission for BMW

New-generation Minis and future BMWs with front-wheel drive will all use automatic transmissions from Aisin AW, according to a leading engineer from the German luxury car manufacturer. Presenting a paper on BMW’s latest [...]


Placeholder
DCTs

November 14, 2013

DCT vs. Automatic: How Do They Rate?

DrivelineNews.com speaks to Didier Lexa, chief technology officer of leading transmissions supplier Getrag. In this first excerpt, he explains to Tony Lewin how DCTs can match planetary automatics for comfort, and how they [...]


Placeholder
DCTs

October 10, 2013

Daimler’s 9G-Tronic Is State of the Art

The suspicion that Daimler was developing a nine-speed planetary automatic for its large rear-wheel drive cars has been an open secret in the auto industry for some time. The only surprise was that Daimler chose to give the [...]


Placeholder
MANUALS AND AMTs

August 29, 2013

The Synchronized Manual Transmission -- Defined

Synchronized manual transmissions are widely used globally in both commercial vehicles and passenger cars, although they are less common in North America. These transmissions contain a complex array of components and [...]


Placeholder
DCTs

July 26, 2013

Can DCT Win Over Hot Hatch Customers?

The Clio Renaultsport 200 Turbo has been eagerly awaited for several very good reasons. First and foremost, it is the latest in a long line of super-sharp hot hatches from Renault; designs such as the Clio Williams and Clio [...]


Placeholder
DCTs

June 20, 2013

GM Explores Torque Converter DCT

Though dual clutch transmissions have been very successful in sports- and performance-oriented passenger cars, the feedback from buyers of luxury cars and family vehicles has not always been so positive. Criticisms have [...]


Placeholder
CVTs

May 17, 2013

Friction Modifier Differences

It is often assumed that lubricants are a commodity product and that there is little real difference between brands – or even between the types of lubes needed for vehicle components such as the engine, transmission, axles [...]


Placeholder
MANUALS AND AMTs

April 17, 2013

Dedicated Driveline Lubricants

The automotive industry continues to benefit from the use of high-tech manual transmission fluids in current and future synchronized manual transmissions Courtesy Transmission Technology International In a world of [...]


Placeholder
CVTs

March 19, 2013

Friction Materials for the Future

Just fifteen years ago, it was a bit simpler. Automatic transmissions were more straightforward with just a handful of gears and a couple of clutches. CVTs were confined to smaller cars, and DCTs were little more than a [...]


Placeholder
MANUALS AND AMTs

February 12, 2013

Advances in Manual Transmission Design and Lubrication for [...]

Sophisticated multi-speed automatic transmissions may get all the headlines, but it is manual gearboxes that keep most of the world on the move. This was one of the main messages to emerge from the webcast on Advances in [...]


Placeholder
CVTs

January 9, 2013

AT, CVT, DCT

Automatic transmissions are widely used across many international markets. A range of technologies is available, with different solutions tending to find favor in different regions. But how do each of these work, how have [...]


Placeholder
PLANETARIES

September 24, 2012

ATs in Trucks & Buses?

The effects of rapid expansion in large developing countries such as Brazil, China and India have been felt by OEMs and suppliers across the auto industry. But while the most-publicized impact has been on passenger car and [...]


Placeholder
CVTs

December 29, 2011

CVT Shifts into High Ratio

During a webcast at the Global Drivetrain Virtual Summit, presenters Martin Kruessmann, Engineering Vice President for Bosch Transmission Technology; Shinji Morihiro, Corporate Vice President for JATCO Ltd and James [...]


Placeholder
HYBRIDS/ELECTRICS

December 15, 2011

Adjusting Drivetrain Design for EVs & Hybrids

The need to increase efficiency and reduce CO2 emissions is by far the most powerful driver for today’s auto industry – few would dispute that. As far as light and medium duty vehicles are concerned, boosting efficiency [...]


Placeholder
HYBRIDS/ELECTRICS

November 11, 2011

EV Transmissions: The Challenges that Lie Ahead

With vehicles like the Chevrolet Volt enjoying a high public profile, the engineering and design visions for electric cars are at last being tested in the real world by real consumers. The move to electric cars could be the [...]


Placeholder
MANUALS AND AMTs

October 4, 2010

Dedicated Additives for MTs

A large percentage of the world’s vehicles are equipped with manual transmissions. The components in these transmissions and the duty cycles they go through are similar to those in axle technologies, and for this reason [...]


Placeholder
DCTs

September 24, 2010

How the Dual Clutch Transmission Works

The DCT is in effect two gearboxes operating in parallel. Each has its own clutch. One gearbox houses first, third, fifth and, if fitted, seventh gears; the other carries second, fourth, sixth and reverse. While the drive [...]


Placeholder
CVTs

September 15, 2010

Continuous Improvement

Continuously variable transmissions may be poised for another surge in popularity. With its 45 percent market share in Japan providing a solid base, new technologies are promoting its wider adoption in Europe and North [...]


Placeholder
DCTs

September 8, 2010

Wet Clutch or Dry Clutch?

The starting point for any transmission designer is knowing the amount of torque the system needs to handle. Nowhere does this apply more clearly than in the design of dual clutch gearboxes, where applications for lower-cost [...]


Placeholder
MANUALS AND AMTs

March 29, 2010

The Right Lubricant for the Job

It’s easy to see why manual transmissions and the lubricants that protect them are seen as the poor relations amongst the elements that make up the powertrain. Engines, with their extravagant technology content and huge [...]


Placeholder
MANUALS AND AMTs

March 22, 2010

Manuals Fight Back –with eClutch

Every combustion engined vehicle needs a launch device to disconnect the engine from the driving wheels. In recent years the most popular solutions have been the dry plate clutch for manual transmissions and the hydraulic [...]


Placeholder
PLANETARIES

March 20, 2010

Fact & Friction

Controlling friction is central to almost every aspect of automotive engineering. Engine specialists need to cut it to an absolute minimum in order to reduce internal losses and save fuel; chassis designers maximize it for [...]


View Older
Page Bottom