Vehicle engine starting system

Disclosed is a vehicle engine starting system capable of facilitating reduction in fuel consumption and providing maximally improved response after satisfaction of a restart condition, while desirably maintaining an engine restart performance. An ECU is operable, when an automatic engine stop condit...

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Bibliographic Details
Main Authors Hosoya, Hideki, Sugiyama, Takanori
Format Patent
LanguageEnglish
French
German
Published 28.06.2017
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR
STARTING OF COMBUSTION ENGINES
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:Disclosed is a vehicle engine starting system capable of facilitating reduction in fuel consumption and providing maximally improved response after satisfaction of a restart condition, while desirably maintaining an engine restart performance. An ECU is operable, when an automatic engine stop condition is satisfied during running of a vehicle, to shift an automatic transmission unit from a drive mode to a neutral mode at a given time in a period after the satisfaction and before interruption of fuel supply. Then, the ECU is operable, when the engine is determined to be automatically stopped, in accordance with a detection result of a crank angle sensor, and an estimated turbine speed is determined to be less than a given influential turbine speed at or at greater than which a reverse driving force from driven wheels of the vehicle causes rotation of an engine crankshaft, in accordance with an estimation result of the ECU, to shift the automatic transmission unit from the neutral mode to the drive mode.
Bibliography:Application Number: EP20050025446