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The Volkswagen 01M transmission is an electronic/hydraulic four-speed automatic transmission deployed in Cabrio, Jetta, Golf, GTI, New Beetle manufactured between 1995 through 2005, and transverse engine Passats manufactured between 1995 through 1997. This transmission was entirely engineered and most probably manufactured by the French company ...
A torque converter is a device, usually implemented as a type of fluid coupling, that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque
This transmission, like single and dual range and dual coupling hydramatics, also has the feature of split torque in the transmission, whereby in fourth (or high) gear only 40% to 50% depending on transmission—40% in Roto's case—but because of the design the coupling is only required to carry 40% of the engine torque.
For the 1981 model year, a lock-up torque converter was introduced which coincided with the new EMC control of most GM cars; this version is the THM350-C, which was phased out in 1984 in GM passenger cars for the 700R4. Chevrolet/GMC trucks and vans used the THM350-C until 1986. The lock-up torque converter was unpopular with transmission builders.
Service intervals of newer type cars are from 80,000 to 120,000 km which equals 50,000 to 75,000 miles. Flushing or refilling the fluid on lifetime-filled transmissions requires the use of equipment to fill from below, engaging the transmission torque converter or using an external pump. [15] [16] [17] [18]
The first automatic transmission to use a torque converter (instead of a fluid coupling) was the Buick Dynaflow, which was introduced for the 1948 model year. In normal driving, the Dynaflow used only the top gear, relying on the torque multiplication of the torque convertor at lower speeds.
Fluid couplings are found in some Diesel locomotives as part of the power transmission system. Self-Changing Gears made semi-automatic transmissions for British Rail, and Voith manufacture turbo-transmissions for diesel multiple units which contain various combinations of fluid couplings and torque converters.
Newer vehicles like Fiesta and Puma use the newer 7-speed PowerShift, while others have reverted to a torque-converter automatic. Volvo Cars While P3 Volvo models using the EcoBoost engine in 1.6T derivatives are equipped with the 6-speed PowerShift, some older P3 platform cars feature the 6-speed PowerShift in 2.0T derivatives (Badged T3 (1.6T ...