Title:
LOCKUP CONTROLLER FOR AUTOMATIC SPEED CHANGER
Document Type and Number:
Japanese Patent JPS6124874
Kind Code:
A
Abstract:
PURPOSE:To suppress shock involved in speed changing surely and effectively with a simple piping construction by performing temporary release of a lockup clutch during speed change through the use of the changing characteristic of the acting pressure to each friction element to establish the adjoining speed change positions. CONSTITUTION:Lockup valves 10, 11 are actuated by the acting pressure P3, P4 at the adjoining speed change positions. When the acting pressure P4 is applied, the valve 11 supplies the acting pressure P4 to a control means 25. This control means locks a clutch 4. During speed changing, the acting pressure P4 decreases while the acting pressure P3 increases. With the pressure P4 decreasing, the valve 11 removes the pressure P4 quickly, and the control means 25 disengages the clutch 4. With the pressure P3 increasing, the valve 10 is actuated to act on the control means 25. This action is delayed by an accumulator etc. 28, and the clutch 4 is temporarily disengaged during the period.
More Like This:
| JP2831374 | INDUSTRIAL APPLICABILITY: Shift control device for automatic transmission |
| WO/2014/068721 | VEHICLE TRAVEL CONTROL DEVICE |
| JP2010203596 | VEHICULAR CONTROLLER |
Inventors:
OGURI KAZUO
Application Number:
JP14476884A
Publication Date:
February 03, 1986
Filing Date:
July 11, 1984
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
F16H61/14; (IPC1-7): F16H45/02
Domestic Patent References:
| JPS5538539A | 1980-03-18 | |||
| JPS5322953A | 1978-03-02 |
Attorney, Agent or Firm:
Hiroshi Maeda
Previous Patent: The fluid pouring system which has various systems for controlling pouring disposal
Next Patent: ILLUMINATING APPARATUS
Next Patent: ILLUMINATING APPARATUS