Invention Grant
US06804953B2 Air-fuel ratio control system for multi-cylinder engine 失效
多缸发动机空燃比控制系统

  • Patent Title: Air-fuel ratio control system for multi-cylinder engine
  • Patent Title (中): 多缸发动机空燃比控制系统
  • Application No.: US10321432
    Application Date: 2002-12-18
  • Publication No.: US06804953B2
    Publication Date: 2004-10-19
  • Inventor: Jiro Kondo
  • Applicant: Jiro Kondo
  • Priority: JP2001-397640 20011227; JP2001-397823 20011227
  • Main IPC: F01N300
  • IPC: F01N300
Air-fuel ratio control system for multi-cylinder engine
Abstract:
An engine control system has a controller and intake control devices for controlling air amount introduced into each of the cylinders. The controller has a lean burn control block and a warm up control block. Both blocks operate two cylinders under a lean air-fuel ratio, and operate remaining two cylinders under a rich air-fuel ratio. Both blocks control at least the intake control devices to adjust air-fuel ratio.
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