Title:
SHIFT PATTERN CHANGEOVER DEVICE FOR AUTOMATIC TRANSMISSION GEAR
Document Type and Number:
Japanese Patent JPS61130651
Kind Code:
A
Abstract:
PURPOSE:To ensure proper speed change control by changing the characteristics of governor pressure outputted from a governor valve, and the shifting point of a kick-down region. CONSTITUTION:A solenoid valve 33 becomes electrically non-live and opens, when a selector switch 36 is turned off and changed over for a power supply. As a result, governor pressur outputted from a governor valve 9 drops at a constant rate, as hydraulic oil is drained out through a drain patch 32 under a flow control by a throttle 35. And the actual governor pressure characteristics give a fluctuation. In that way, the overall shifting pattern becomes as shifted at a high speed side and the shifting point for kick-down changes similarly. Consequently, the speed change control can be made properl at each shifting pattern.
Inventors:
SUZUKI HOSEI
Application Number:
JP25348184A
Publication Date:
June 18, 1986
Filing Date:
November 29, 1984
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
F16H61/02; F16H59/08; F16H59/12; (IPC1-7): F16H5/64
Attorney, Agent or Firm:
Nobujun Kobashi
Previous Patent: JPS61130650
Next Patent: LINE PRESSURE CONTROL SYSTEM OF AUTOMATIC TRANSMISSION WITH SPEED CHANGE SHOCK REDUCER
Next Patent: LINE PRESSURE CONTROL SYSTEM OF AUTOMATIC TRANSMISSION WITH SPEED CHANGE SHOCK REDUCER