Title:
METHOD OF CONTROLLING IDLE OPERATION OF AUTOMATIC SPEED REDUCTION GEAR FOR VEHICLE
Document Type and Number:
Japanese Patent JPS61244955
Kind Code:
A
Abstract:
PURPOSE:To prevent the generation of power-on shock during starting a vehicle, by changing over a mechanical speed reduction gear once into a high speed higher gear stage from a first gear stage when the braking condition of a brake is released under an anticreep control condition. CONSTITUTION:When the braking condition of a brake for controlling the running of a vehicle is released under an anticreep control condition, the hydraulic pressure of a forward clutch 28 is increased to a value which is established when a forward gear stage is attained, and when this hydraulic pressure reaches a predetermined value, a shift brake 30 is released. Thereby, when the braking condition of the brake is released, a mechanical speed reduction gear is once change over into a high speed gear stage, and then is changed over into a first gear stage since the shift brake 30 is released. Therefore, a shift-down is carried out in such a condition that an accelerator pedal is not yet depressed, thereby it is possible to prevent the generation of power-on shock during starting the vehicle.
Inventors:
HAMANO YUKIO
Application Number:
JP8689985A
Publication Date:
October 31, 1986
Filing Date:
April 23, 1985
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B60W10/00; B60W10/02; B60W10/10; F16H61/02; F16H61/08; F16H61/20; (IPC1-7): B60K41/28; F16H5/66
Attorney, Agent or Firm:
Akashi Masatake