Invention Grant
- 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
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Application No.: US10321432Application Date: 2002-12-18
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Publication No.: US06804953B2Publication Date: 2004-10-19
- Inventor: Jiro Kondo
- Applicant: Jiro Kondo
- Priority: JP2001-397640 20011227; JP2001-397823 20011227
- Main IPC: F01N300
- IPC: F01N300

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.
Public/Granted literature
- US20030121250A1 Air-fuel ratio control system for multi-cylinder engine Public/Granted day:2003-07-03
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