New Drivetrain for Toyota's Flagship Lexus LFA Sports Car

Paper #:
  • 2011-01-1427

Published:
  • 2011-04-12
Citation:
Kobayashi, T., Masaru, M., Kano, T., Imafuku, M. et al., "New Drivetrain for Toyota's Flagship Lexus LFA Sports Car," SAE Technical Paper 2011-01-1427, 2011, https://doi.org/10.4271/2011-01-1427.
Pages:
8
Abstract:
Toyota Motor Corporation has developed a new drivetrain for their flagship Lexus LFA sports car. Passionate driving experience was pursued at the forefront of development. Superior vehicle performance, handling, and responsiveness that seem to anticipate the driver's intentions are achieved. Special vehicle packaging and component placement are adopted in the LFA in order to realize such performance. The engine, clutch, and front counter gear are positioned at the front of the vehicle, and the transaxle at the rear. The engine and transaxle are connected by a rigid torque tube. The transaxle is an automated manual transmission equipped with an electrohydraulic actuator for controlling both the shift and clutch operations. This actuator enables accurate control of the transmission and extremely quick response to shift paddle operation by the driver. This paper describes a general outline of the drivetrain and each component that has significantly contributed to LFA product appeal.
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