Title:
VEHICLE CONTROL DEVICE RELATING TO SUPPLY/STOP CONTROL OF FUEL TO ENGINE AS VEHICLE DRIVING SOURCE, PARTICULARLY, TO STOP CONTROL OF FUEL SUPPLY DURING IDLING FOR IMPROVED FUEL ECONOMY
Document Type and Number:
Japanese Patent JP2005140076
Kind Code:
A
Abstract:
To improve fuel economy by advancing a stating timing for fuel-cut in a vehicle on which a fluid coupling is mounted with a lock-up clutch.
An engine ECU executes a program which includes a step (S110) of measuring an after-idling passage counter T when an engine is in an idling condition (YES in S100), a step (S130) of selecting a longer delay time T(A) when the lock-up clutch is in a released condition (NO in S120), a step (S150) of selecting a shorter delay time T(B) when the lockup clutch is in an engaging condition or in a slipping condition (YES in S120), and a step (S170) of starting the fuel-cut when the after-idling passage counter T gets to the delay time T(A) or T(B) (YES in S140 or YES in S160).
Inventors:
SORA HIDETOSHI
WATANABE TAKESHI
WATANABE TAKESHI
Application Number:
JP2003379941A
Publication Date:
June 02, 2005
Filing Date:
November 10, 2003
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D45/00; F02D17/02; F02D29/00; F02D41/12; (IPC1-7): F02D41/12; F02D17/02; F02D29/00; F02D45/00
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Takao Matsuyama
Tadashi Muto
Toshio Morita
Takao Matsuyama
Tadashi Muto