Wednesday, January 4, 2012

Hyundai Veloster




Hyundai Veloster

NEW SIX-SPEED DUAL-CLUTCH TRANSMISSION

Hyundai Veloster commitment to making the Gamma engine extremely fuel efficient continues by pairing it with a standard six-speed manual transmission or an all-new, six-speed dual-clutch transmission (DCT) developed by Hyundai.

Hyundai Veloster new DCT takes the benefits of a manual transmission, including low fuel consumption and sporty driving, and blends them with automatic transmission benefits, such as high comfort levels and smooth shift quality. In addition, the DCT enables direct connection for high efficiency and uninterrupted torque transfer during shifts. Automatic transmissions lose power and fuel economy in the torque converter.

Other improvements of a DCT over a traditional automatic include a five to six percent improvement in fuel efficiency as well as a three to seven percent improvement in acceleration performance.

Hyundai Veloster's DCT can be thought of as two traditional manual transmissions, each with its own clutch operating in parallel and alternating shifts. Hyundai Veloster is a six-speed with one clutch acting on gears one, three and five and the other used for two, four, six and reverse. This shifting process results in quick smooth transitions with none of the efficiency loss normally associated with torque convertors. The clutch actuator assembly features electric motors for actuation, and an external damper improves NVH.

This powertrain also has an Active Eco mode which modifies engine and transmission control for improved fuel economy that translates into more than a seven percent improvement in real-world fuel economy.
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