Example Application AAD 6-speed demonstrator(MG Rover) 2005 Example Application TX six-speed demonstrater (Geely) 2007 Example Application Loncin 150-260 nm Mass production ready 2008
LATEST NEWS ABOUT THE SIX-SPEED BELOW THE PAGE!!!
Passenger Car Automatic. Offering light weigh and high efficiency, the Antonov six speed automatic has been applied to the R25 platform to demonstrate its ease of calibration and driveability. ===========================================================
AAD tekening. Zou in 2006 in de MG Rover modellen komen. (Rover StreetWise/City Rover). Komt nu waarschijnlijk in de Chinese SAIC look-a-like MG Rover modellen, omdat SAIC het intelectueel eigendom van MG Rover heeft gekocht.
2007 model (Geely TX6)
Six-Speed Automatic for R25 Platform Market Issues:Efficiency of conventional autos too low but CVT requires dependence on specialist belt supplier Efficiency can be improved by use of wet clutch launch not torque converter but this requires wider ratio range from transmission Wider ratio range requires additional speeds to retain optimal powertrain efficiency and good shift quality leading to higher cost and weight.
Problem Statement: *How to achieve a compact, high efficiency transmission with 6 speeds, no multi-clutch shifts and no specialist components?
Antonov Solution: *The six-speed makes use of simple three speed planetary gear sets arranged on two countershafts. *Combination of planetary and countershaft layout provides multi-speeds with simple shifting and high efficiency. *Solution is light and compact and scalable to all transverse installations.
Status *Transmission has reached Concept Readiness and initial production designs have been completed. *Concept Demonstrators successfully signed off by a customer as being ready for the production design phase. Supplier nomination and production planning now under way.
For more information push here. ======================================================
Supplement information from Antonov 22-04-2007:
TX6 and its AAD predecessors all use hydraulics. They always have from the first prototype to the current TX6 and always will. The text you have used is from the description of the AMM gearbox. This does not use hydraulics but is a different product completely! So you should not worry about the statement that Eaton will support hydraulics. The “licence” referred to in the release is Geely – not Eaton. We did not restate Geely because Eaton’s commitment is to support Antonov – for Geely and for others – not to Geely. Eaton do not have a licence to any of our existing patents under the Agreement. Under the Eaton agreement, anything newly invented directly by us working together is actually shared but with patents you need a single owner – so if it is a joint invention to do with hydraulics, Eaton will own it and we will have a free licence and if it is to do the mechanics, we will own it and they will have a free licence. So this is not giving anything away – in practice it means we possibly get to own some Eaton ideas. Finally – this is definitely good news. Major suppliers like Eaton do not commit their precious engineering expertise to programmes for free unless they are convinced it will bring them a big production supply contract.
AAD Six-Speed De AAD six-speed die in de GWM sedan modellen komt. Kleine design aanpassingen worden inmiddels doorgevoerd.
2008 model (Loncin)
The Antonov Six Speed Automatic transmission offers a unique opportunity for vehicle makers to gain access to a state of the art electronic controlled six speed transmission which offers excellent economy, comfort and drivability without the high upfront cost of conventional automatic transmissions.
The Antonov system features simple drive paths which use a single friction element for each ratio. This makes shift scheduling easy as any gear can be selected from any other gear. =======================================================
150-260NM Six Speed Automatic Transmission. In addition, control of 1st, 2nd, 3rd and Reverse is via a static brake which greatly simplifies the calibration. The indirect torque control makes smooth shifting easier to achieve whilst the absence of any dynamic seals makes the pressure control near linear which further simplifies calibration.
The higher ratios are all direct drive but the shift control is easier for higher gears. In addition, only a single dynamic seal is required for each actuator. Direct drive gives benefits of drive efficiency.
The system uses an indirect brake to launch - similar to some Japanese CVTs - which is much easier to control for smooth launching than the direct clutches used in Dual Clutch Transmissions. It also saves weight and reduces powerloss.
The end result is a transmission that we can adapt to your vehicle and calibrate much more quickly and efficiently that any alternative approach and yet will still offer world class shift comfort and fuel economy.
150-260NM Six Speed Automatic Transmission
The Antonov Six Speed is at first production prototype stage and is being marketed to Chinese domestic vehicle makers in conjunction with Loncin. Negotiations are underway for the formation of a Joint Venture production company that will take the transmission into production in Chong Qing, PRC.
Demonstration vehicles will be placed with prospective clients during the second quarter of 2008. In parallel detailed product costing is underway to enable firm pricing to be quoted to clients.
More detailed information, including a technical specification and shift chart are available in the Member's Area.
Explanation Wet/Dry clutch
A. There is an English expression "Horses for courses". What that means is some horses run well on dry ground and other horses run well on wet ground. To win a race you need the right horse for the conditions.
And I think it is the same with wet and dry dual clutch systems. For low power transmissions, eg something like a Smart car, a dry clutch system would be better because it has a higher mechanical efficiency. For high power transmissions, eg something like a Lambourghini, a wet clutch system is better, as a lot of heat needs to be dissipated.
All that however is for dual clutch systems, where there are only two sets of friction discs, and they are easily separated from all the gears etc. The clutches can effectively be brought outside of the gearbox.
In a more conventional automatic transmission, the friction discs (ie clutches and brakes) are more of an integral part of the transmission and I don't see anything but a wet system being used. That's the situation with the Antonov 6-speed transmissions, as I see it. Oil is required to lubricate the gears; the friction discs will be in that oil; and that makes it all a wet system.
A note on terminology.
Clutches: friction discs used to make something move by coupling it to something moving.
Brakes: friction discs used to make something stop by coupling it to something stationary.
Antonov Transmissions
