Hyundai Develops New Transmission for Hybrids

Future Hyundai hybrid models will benefit from a new six-speed transmission.

The Korean automaker has announced a new motor-integrated six-speed automatic transmission that will help achieve improved fuel economy in its latest hybrid models. The transmission integrates an electric motor that applies several new technologies that promise to deliver tangible benefits to the owner. Expect the new transmission to make its way to future Hyundai hybrid models, including the hybrid variant for the all new Sonata.

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According to Hyundai, the innovative new transmission means that almost all the hybrid powertrain components will be contained within the transmission, helping minimize energy losses and increasing fuel economy. It has also been outfitted with a new traction motor and electric oil pump, while the torque converter has been removed entirely. The most significant change to the transmission is a new electric oil pump that replaces the mechanical oil pump, which caused hydraulic losses. As a result of all the changes, the new transmission weighs around 285 lbs, making it lighter than its predecessor.

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