FUEL COMPOSITION ESTIMATING DEVICE FOR INTERNAL COMBUSTION ENGINE

PURPOSE:To optimally estimate alcohol concentration before start of air/fuel ratio feedback control. CONSTITUTION:When abnormality occurs at an alcohol sensor and during idle driving (S1 to S2), alcohol concentration is forcedly changed (S7 and S11), and the alcohol concentration is estimated from a...

Full description

Saved in:
Bibliographic Details
Main Author OTA TADAKI
Format Patent
LanguageEnglish
Published 09.03.1993
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MEASURING
MECHANICAL ENGINEERING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To optimally estimate alcohol concentration before start of air/fuel ratio feedback control. CONSTITUTION:When abnormality occurs at an alcohol sensor and during idle driving (S1 to S2), alcohol concentration is forcedly changed (S7 and S11), and the alcohol concentration is estimated from a change amount of an engine revolution speed at the change (S12).
Bibliography:Application Number: JP19910218798