pressure controlsolenoidscontrolelectric coilsA control valve circuit for an automatic transmission having a variable force solenoid valve that is supplied with feed pressure by a variable force solenoid pressure relief valve to produce a signal that acts on a main regulator valve thereby avoiding high...
In a hydraulic or pneumatic flow-control valve, the valve stem itself is made a part of a solenoid arrangement that effects its reciprocation. The valve stem is magnetically responsive (e.g., magnetically permeable or ferromagnetic), and a magnetic field is applied to the stem to cause it ...
An electromagnetically operated pressure control valve has a solenoid 14 in a housing 12 and a flat armature 23 which moves within a guide ring 33. The armature and the ring comprise a one-piece component which is split into constituent parts before final assembly of the valve. This one-piece...
CONSTITUTION: A hydraulic control device of an automatic transmission comprises a switch-type shift valve(50). In the shift valve, a spool moves to promote the switching of a passage by a third pressure control solenoid valve switched on/off in shifting into a 4-speed of a D-range, and ...
Pressure Control of Clutch Actuating Hydraulic Control System for Automatic Transmission using High Speed On-Off Solenoid Valve This patent describes a line pressure control device for a hydraulic control system of an automatic transmission, comprising: a fluid pump for producing a ... IY Lee,KU Ya...
An automatic power transmission control system includes a solenoid valve which is associated with an electric or electronic controller to receive therefrom a control signal. The solenoid valve generates a hydraulic control pressure in re... TOSHIHARU YAMADA,KENICHI SAKAMOTO,HIROKI SUZUKI 被引量: 8发表...
of EP0711944 A proportional variable force solenoid valve (10) for controlling the pressure of a pressurized fluid in a fluid control system in proportion to the current level of an electrical input signal comprises a movable valve (67) for controlling the pressure of pressurized fluid in the ...
Control device and control method for a vehicular automatic transmission When a clutch is disengaged in a D-N shift, a duty ratio of a linear solenoid in a stand-by state at a constant pressure is calculated according to the following equation by using the following values: a reference duty...
A first pressure control solenoid is configured to provide boost pressure to the main regulator valve and thereby boost output of the main pump. A second pressure control solenoid is configured to provide boost pressure to the auxiliary regulator valve and thereby boost output of the auxiliary pump...
CONSTITUTION:In a lock-up range, a lock-up solenoid 20 is temporarily deenergized upon gear-shifting so that a lock-up control valve 16 is changed over to its normal position by a spring 29, and therefore, an output shaft 3 and a transmission input shaft 2 are coupled together by a ...