Lock-up clutch for automatic transmissions
Historically, manual transmissions have offered better fuel efficiency than automatics, as the latter use a torque converter, which wastes engine energy when shifting. A lock-up clutch in an automatic transmission helps keep gear shifts efficient by maintaining a fixed connection between the transmission and drive shaft whenever possible.
Mercedes-Benz has exploited this technology considerably, making its seven-speed transmissions more efficient, and refining it further for performance cars in its AMG division.
September 29, 2011 5:04 PM PDT
Photo by: Mercedes-Benz
| Caption by: Wayne Cunningham
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