Development of New V6 3.5L Gasoline Direct Injection engine

Paper #:
  • 2017-01-1022

Published:
  • 2017-03-28
Author(s):
Abstract:
The new 3.5L V6 Direct injection gasoline engine VQ35DD is developed for midsize premium SUV. This engine is developed as the latest descendant of the VQ engine family with the latest technologies. Primarily it is aimed to enhance driving performance combined with good environmental performance. Together with these torque/power increase and FE / emission improvements, simultaneous realization of both throttle response and smoothness are also prioritized. To achieve these features, direct injection system, high response motor driven intake CVTC, individual spark timing, mirror bore spray coating on cylinder block and various friction reduction technologies such as variable displacement oil pump are applied. Thus maximum engine power and torque are increased by 8 to 10%. Minimum BSFC is improved by 6% and wider spread of lower BSFC area considering CVT application. This paper describes overview of the engine, details of new technologies, and achievements of the aimed performance.
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