METHOD FOR CONTROLLING ENGINE IN CLUTCH OFF AFTER COLD STARTING OF MANUAL TRANSMISSION VEHICLE

PURPOSE: An air fuel ratio is compensated by a compensation map in clutch off after cold starting, thereby preventing abrupt lowering of an engine rpm or an engine stopping. CONSTITUTION: When a manual transmission vehicle is started, various sensors detect temperatures in starting(S1). It is decide...

Full description

Saved in:
Bibliographic Details
Main Author KANG, JAE HYEON
Format Patent
LanguageEnglish
Korean
Published 26.10.2002
Edition7
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PURPOSE: An air fuel ratio is compensated by a compensation map in clutch off after cold starting, thereby preventing abrupt lowering of an engine rpm or an engine stopping. CONSTITUTION: When a manual transmission vehicle is started, various sensors detect temperatures in starting(S1). It is decided whether the detected temperatures are below normal state temperatures(S2). If the detected temperatures are below normal state temperatures, a changing of an engine rpm is detected(S3). The changed amount of rpm is compared with a reference value(S4). If the changed amount of rpm is larger than the reference value, it is decided whether the changing time of the engine rpm is within a certain time which does not affect starting(S5). If the engine rpm change is within the certain time, it is decided whether there is any electrical load(S6). If there is not an electrical load, an engine compensation control is carried out by a compensation map(S7).
Bibliography:Application Number: KR20010020923