Title:
METHOD AND SYSTEM FOR CONTROLLING ENGINE IDLE SPEED IN HYBRID ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JP2003041965
Kind Code:
A
Abstract:
To improve the controllability of an engine idle speed of a hybrid electric vehicle.
A method and a system control an idle speed of a drive system or transaxle 10 of the hybrid electric vehicle including an internal combustion engine 12, a generator/motor 14 connected to the engine 12 by means of a planetary gear mechanism 20, and an electric motor 16. The drive system 10 includes a brake or clutch assembly 34 operable via selective connection to the generator/ motor 14 and effective in supplementing reaction torque generated by the generator to thereby control an idle speed of the engine 12 in a wide range of engine operating states in cooperation with the generator/motor 14.
Inventors:
RAMASWAMY DEEPA
WOESTMAN JOANNE T
BREIDA MARY THERESA
KOTRE STEPHEN JOHN
WOESTMAN JOANNE T
BREIDA MARY THERESA
KOTRE STEPHEN JOHN
Application Number:
JP2002130289A
Publication Date:
February 13, 2003
Filing Date:
May 02, 2002
Export Citation:
Assignee:
FORD MOTOR CO
International Classes:
B60K6/445; B60L15/20; B60L50/16; B60W10/06; B60W10/08; B60W10/26; B60W20/00; F02D17/00; F02D29/02; F02D31/00; F02D41/08; F02D41/12; F02D45/00; B60K1/02; F02N11/04; (IPC1-7): F02D29/02; B60K6/04; B60L11/14; B60L15/20; F02D17/00; F02D41/12; F02D45/00
Attorney, Agent or Firm:
Hiroshi Maeda (7 outside)