Kia Announces New Turbo 3-Cylinder, 7-Speed DCT. Kappa Kappa Hey! Debuting in the diesel variant of the Cee’d GT Line is a new-to-Kia gearbox. My first DCT was a 6-speed Cee'd 1.6 petrol, which I bought in 2017, and apart from a sticky valve which was fixed under warranty, I had no problems in some three years, driving around 17,000 miles. I now have a Niro HEV with a similar transmission and that now has a little under 6,000 faultless miles on the clock. The 7-Speed M BMW Double-Clutch Transmission (DCT) was first introduced on November 1st, 2008 by BMW M Gmbh. BMW was the world’s first car maker to propose the 7-Speed DCT gearbox for the M division. It ensures optimal gearshift, provides more dynamic acceleration and reduces fuel consumption. The 7-speed M Double-Clutch Transmission (DCT) in. In our 8-speed JCW Clubman there are moments that we wonder if a DCT wouldn’t be very slightly quicker and more eager to upshift – especially when cold. But if there’s one thing BMW has proven in the past few years it knows how to tune automatic transmissions to feel like DCTs.
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Many drivers treat their car’s dual-clutch transmission in the same way that they would drive a car that had an automatic transmission. But, a dual-clutch transmission is more like a manual transmission than automatic. And if you don’t treat it properly, you could permanently damage it.
Some of your current driving habits could ruin a dual-clutch transmission. If you’re doing any of the following and your car has a DCT, cut it out!
Is Your Car Having Trouble Driving?Take action if any of these warning indicator lights are illuminated
Habits to avoid so you don’t ruin a dual-clutch transmission
Stop taking your foot off the brake
If you have a tendency to let your DCT sit without applying the brakes, such as waiting in traffic or at the foot of an incline, you could be wearing out the clutch pack. When the brakes aren’t applied, some DCTs will make the clutches continually slipping to keep you in place. This depends on how your transmission operates, but you could be putting extra heat and wear on the clutch pack.
Stop putting the car in neutral
Those who are used to driving stick shifts might have a habit of putting their car in neutral when they’re fully stopped at an intersection. You don’t need to do this with a dual-clutch transmission. The car will intuitively release the clutches when you’re braking, so there’s no point switching out of Drive.
If you do ever put the car in neutral, keep the brake depressed when shifting into and out of neutral to protect the clutch. Dota 6 65 ai download for mac.
Are You Guilty of Any of These Common Car Maintenance Mistakes?Find out…
Stop launching improperly
In sportier cars with dual-clutch transmissions, drivers like to launch from a stand-still, but doing so incorrectly can severely damage the gearbox and clutch disks. Don’t hold the brake pedal while you’re revving the gas because the clutch will take damage trying to move the car while you’re fighting it with the brakes. In general, never accelerate the engine when the brakes are applied.
Stop keeping the car in place by accelerating
If you’re sitting on an incline, don’t repeatedly tap the acceleration pedal to keep your position. The same goes for putting the car in reverse and accelerating backward to stop from rolling down a hill. Both practices will quickly overheat the clutch. Use the brakes instead.
Clutch behavioral logic and functions vary from manufacturer to manufacturer, so research your specific model to find out how to properly operate. Your car’s owner’s manual will have a lot of information on proper handing to not ruin a dual-clutch transmission.
Sources:Engineering Explained, 2014 Hyundai Veloster owner’s manual
Aaron is unashamed to be a native Clevelander and the proud driver of a Hyundai Veloster Turbo (which recently replaced his 1995 Saturn SC-2). He gleefully utilizes his background in theater, literature, and communication to dramatically recite his own articles to nearby youth. Mr. Widmar happily resides in Dayton, Ohio with his magnificent wife, Vicki, but is often on the road with her exploring new destinations. Aaron has high aspirations for his writing career but often gets distracted pondering the profound nature of the human condition and forgets what he was writing… See more articles by Aaron.
| 7G-Tronic | |
|---|---|
| Overview | |
| Manufacturer | Daimler AG |
| Production | 2003– |
| Body and chassis | |
| Class | 7-speed longitudinalautomatic transmission |
| Chronology | |
| Predecessor | Mercedes-Benz 5G-Tronic transmission |
| Successor | Mercedes-Benz 9G-Tronic transmission |
7G-Tronic is Mercedes-Benz's trademark name for its seven-speed automatic transmission, starting off with the W7A 700 and W7A 400 (Wandler-7-Gang-Automatik bis 700 oder 400 Nm Eingangsdrehmoment; converter-7-gear-automatic with 516 or 295 ft·lb maximum input torque; type 722.9) as core models.
Abstract[edit]
This fifth-generation transmission was the first seven-speed automatic transmission ever used on a production passenger vehicle.[1] In all applications this transmission is identified as the New Automatic Gearbox Generation Two, or NAG2. It initially debuted in Autumn 2003 on five different eight-cylinder models: the E500, S 430, S 500, CL 500, and SL 500. It also soon became available on many six-cylinder models. Turbocharged V12 engines, four cylinder applications and commercial vehicles continued to use the older Mercedes-Benz 5G-Tronic transmission for many years.
The company claims that the 7G-Tronic is more fuel efficient and has shorter acceleration times and quicker intermediate sprints than the outgoing 5-speed automatic transmission.[1] It has two reverse gear ratios.
The transmission can skip gears when downshifting. It also has a torque converter lock-up on all seven gears, allowing better transmission of torque for improved acceleration. The transmission's casing is made of magnesium alloy, a first for the industry, to save weight.[citation needed] The 7G-Tronic transmission is built at the Mercedes-Benz Stuttgart-Untertuerkheim plant in Germany, the site of Daimler-Benz's original production facility.
About 65 percent of Mercedes-Benz C-Class sedans, wagons, and sport coupes are purchased with automatic transmissions (with that figure rising). However, about 88 percent of Mercedes-Benz E-Class sedans and wagons are purchased with automatic transmissions, and automatic transmissions are standard on the Mercedes-Benz S-Class.
The transmission is currently available on the SsangYong's vehicles like Rexton, and Korando Turismo (in South Korea)/Turismo (in UK). In July 2009, Mercedes-Benz announced they are working on a new nine-speed automatic.[2]
Specifications[edit]
Basic concept[edit]
Progress is reflected in 7 forward gears[a] out of 11 main components,[b][3][4][5] compared to 5 forward gears[c] out of 9 main components.[d] This turns out the design as advanced compared to its predecessor but less economical compared to its competitors. It uses no bands nor sprag clutches.[4] It is fully electronic controlled. Torque converter lock-up can operate in all 7 forward gears.[4]
Gear ratios[edit]
| Gear Teeth and Ratios | Planetary Gear Set: Teeth | Count | Total | Avg. | |||||
|---|---|---|---|---|---|---|---|---|---|
| Ravigneaux | Simple | ||||||||
| Model Type | First Delivery | Sun 1.1 Ring 1.1 | Sun 1.2 Ring 1.2 | Sun 2 Ring 2 | Sun 3 Ring 3 | Brakes Clutches | Ratio Span | Gear Step | |
| Gear | 1 | 2 | 3 | 4 | 5 | 6 | 7 | R 1 | R 2 |
| W7A ALL 722.9 | 2003[3][5] | 42 86 | 86 110 | 28 76 | 46 114 | 4 3 | 6.0162 | 1.3486 | |
| Ratio | 4.3772 | 2.8586 | 1.9206 | 1.3684 | 1.0000 | 0.8204 | 0.7276 | - 3.4157 | - 2.2307 |
Gears functionality[edit]
In normal condition it sequentially shift gears, but if required it can skip some gears, that are: 7 to 5, 6 to 2, 5 to 3 and 3 to 1.[4] Download free compatibilidad windows xp vista 7 software.
For 6 or 8 cylinder gasoline engines and if sport mode is not selected, transmission will start in 2nd gear. Also, if it is an offroad vehicle, if low range is selected, it will start in 2nd gear too.[6]
If emergency mode is activated, like when an electric fault or another critical fault occurs, the 6th gear is selected by default (all solenoids off).[4]
AMG SpeedShift[edit]
AMG SpeedShift TCT[edit]
The TCT transmission is essentially the 7G-Tronic automatic transmission including 'Torque Converter Technology'.
Sporty, performance-oriented version with the same gear ratios. First used in 2005 Mercedes-Benz SLK 55 AMG.[7]
In 2007, 7G-Tronic transmission with AMG SPEEDSHIFT was also called '7G-Tronic Sport'.[8]
AMG SpeedShift MCT[edit]
Mercedes-AMG developed the 7-speed MCT 'Multi Clutch Technology' planetary automatic transmission.
The MCT transmission is essentially the 7G-Tronic automatic transmission without a torque converter. Instead of a torque converter, it uses a compact wet startup clutch to launch the car from a stop and also supports computer-controlled double-clutching. The MCT (Multi-Clutch Technology) acronym refers to a planetary (automatic) transmission's multiple clutches and bands for each gear.[9]
The MCT is fitted with four drive modes: “C” (Comfort), “S” (Sport), “S+” (Sport plus) and “M” (Manual) and boasts 100 millisecond shifts in 'M' and 'S+' modes. MCT-equipped cars are also fitted with the new AMG DRIVE UNIT with an innovative Race Start function. The AMG DRIVE UNIT is the central control unit for the AMG SPEEDSHIFT MCT 7-speed sports transmission and all driving dynamics functions. The driver can change gears either using the selector lever or by nudging the steering-wheel shift paddles. The new Race start Function is a launch control system that enables the driver to call on maximum acceleration while ensuring optimum traction of the driven wheels.
It is available on the 2009 SL 63 AMG and E63 AMG, and will be used for the 2011 S 63 AMG and CL 63 AMG, and the 2012 CLS 63 AMG and C 63 AMG.
Compulsory on the 2014 AMG CLS63 and E63 models, as well as their 'S--Model' variants. Improved with the release of the 2015 model year, by decreasing the lag time between shifts.
Applications[edit]
Mercedes models[edit]
Mercedes C-Class[edit]
- 2007–2014 Mercedes-Benz W204 (all except 4-cyl models)
- 2006 Mercedes-Benz W203 (C280 not 4Matic)
Mercedes E-Class[edit]
- 2009–2016 Mercedes-Benz W212 (all models except E 200 CGI and E 350 BlueTec)
- 2009–2013 Mercedes-Benz W212 (E 350 BlueTec)
Mercedes S-Class[edit]
- 2013–2017 Mercedes-Benz W222 (all models except Maybach S 500 and Maybach S 500 4MATIC)
- 2017–today Mercedes-Benz W222 (V12 models only)
Bmw 7 Speed Dct
Non Mercedes-Benz models[edit]
Infiniti[edit]
7 Speed Dct Transmission
- 2014–2019 Infiniti Q50 (2.0 (M274 DE20 LA)[10]).
- 2015–2016 Infiniti Q50 (2.2 (OM651 22 LA)[11]).
See also[edit]
Notes[edit]
Kia 7 Speed Dct
- ^plus 2 reverse gears
- ^4 planetary gearsets (Ravigneaux planetary gearset considered as 2), 4 brakes, 3 clutches
- ^plus 2 reverse gear
- ^3 simple planetary gearsets, 3 brakes, 3 clutches
References[edit]
7 Speed Dct Auto
- ^ ab'7G-Tronic: Mercedes-Benz presents the world's first seven-speed automatic transmission for passenger cars'(PDF). DaimlerChrysler press release. Archived from the original(PDF) on 2011-07-06. Retrieved 2011-02-22.
- ^19 July 2010. 'Merc plans nine-speed auto''. Autocar.co.uk. Retrieved 2010-07-20.
- ^ ab'Catalog'(PDF). shop.ukrtrans.biz. Retrieved 2020-01-15.
- ^ abcde'Mercedes Benz 722.9 Training Manual'(PDF).
- ^ ab'Archived copy'. Archived from the original on 2019-06-28. Retrieved 2019-06-28.CS1 maint: archived copy as title (link)
- ^'Mercedes Benz 722.9 Workshop Tips and Tricks Manual'(PDF).
- ^'Archived copy'. Archived from the original on 2009-08-04. Retrieved 2009-07-20.CS1 maint: archived copy as title (link)
- ^'Archived copy'. Archived from the original on 2009-11-10. Retrieved 2009-07-21.CS1 maint: archived copy as title (link)
- ^'Archived copy'. Archived from the original on 2009-01-31. Retrieved 2010-07-29.CS1 maint: archived copy as title (link)
- ^'First view of Mercedes 2.0 turbo in the Infiniti Q50'.
- ^'Infiniti Q50 2,2d Sport vs. Mercedes-Benz C220 BlueTEC 7G-tronic'.
7 Speed Dct Kia
External links[edit]
Hyundai 7 Speed Dct Problems
- '7G-Tronic: Mercedes-Benz presents the world's first seven-speed automatic transmission for passenger cars'(PDF). DaimlerChrysler press release. Archived from the original(PDF) on 6 July 2011. Retrieved 14 October 2008.
Hyundai 7 Speed Dct