Title:
OPERATION CONTROL DEVICE FOR CLUTCH FOR TORQUE CONVERTER IN CAR SPEED CHANGE GEAR
Document Type and Number:
Japanese Patent JPS5943228
Kind Code:
A
Abstract:
PURPOSE:To release the operation of a clutch at the time of changing speed by stopping the input of a car velocity signal to a clutch operating control valve when each pressure of oil supplied to respective hydraulic engaging elements of high-speed two-step transmission systems is a prescribed value or less. CONSTITUTION:At the establishment of a second speed transmission system, the action to a second speed pressure port 27a causes an interrupting valve 25 to be pushed to the left open side against a spring 25a, so that governor pressure works upon a control valve 17 through an oil path L12 to operate a clutch 14 more than a prescribed car velocity. At the establishment of a third speed transmission system, the action to a third speed pressure port 27b causes the interrupting valve 25 to be pushed to the open side through a plunger 26, thereby operating the clutch 14. In case of changing speed from the second speed to the third speed, oil is discharged from an oil path L6, and oil is supplied to an oil path L7, and the interrupting valve 25 is closed after the oil pressure worked upon the port 27a is lowered below a prescribed value by oil discharge through an oil path 13 and befoe the oil pressure worked upon the port 27b is increased above a prescribed value by oil supply through an oil path L14, so that the operation of the clutch is temporarily stopped.
Inventors:
NISHIMURA SADANORI
Application Number:
JP15337782A
Publication Date:
March 10, 1984
Filing Date:
September 04, 1982
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F16H61/14; F16D48/02; (IPC1-7): F16H45/02
Domestic Patent References:
| JPS5036865A | 1975-04-07 |
Attorney, Agent or Firm:
Kinichi Kitamura