Ryuji Ibaraki
Ryuji Ibaraki, Nishikamo-Gun JP
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20080200301 | Hydraulic pressure control device of an automatic transmission and hybrid drive device having the hydraulic pressure control device - A hydraulic control apparatus for an automatic transmission includes a forward travel engaging element, a reverse travel engaging element, a first signal electromagnetic valve, a first switching valve, and a second switching valve. The hydraulic control apparatus is structured so as to change the output state of the signal pressure of the first signal electromagnetic valve when changing from the reverse travel shift position and/or shift range to the non-travel shift position and/or shift range and when changing from the forward travel shift position and/or shift range to the non-travel shift position and/or shift range, and to enable quick draining of hydraulic pressure of the hydraulic servo of the reverse travel engaging element and hydraulic pressure of the hydraulic servo of the forward travel engaging element. | 08-21-2008 |
20080256943 | Hydraulic control device - A hydraulic control device includes an oil pan; an oil pump; a strainer; a pressure regulating valve; an oil cooler; a cooler bypass valve with an input port that is connected with a cooler supply oil passage through which the hydraulic oil to be supplied to the oil cooler flows, wherein the input port is communicatively connected with an output port when the hydraulic pressure of the hydraulic oil within the cooler supply oil passage is equal to or greater than a predetermined valve opening pressure; and a cooler bypass oil passage that connects the output port of the cooler bypass valve with an intake oil passage between the strainer and the intake port of the oil pump. | 10-23-2008 |
20090258747 | Control apparatus for vehicular drive system - A vehicular power transmitting system including a transmission portion constituting a part of a power transmitting path, an electric motor connected to the power transmitting path, an electrically controlled differential portion connected to the electric motor and having a differential state controllable according to a change of an operating speed of the electric motor, a casing accommodating the transmission portion, the electric motor and the electrically controlled differential portion, and a support member for supporting a rotor of the electric motor, the support member including a support portion formed in one axial end portion thereof, at which the rotor is supported rotatably about its axis, and a tapered portion having a diameter increasing in an axial direction from the one axial end portion toward the other axial end portion at which the support member is fixed to the casing, and wherein a winding portion of a stator of the electric motor is disposed in a space formed radially outwardly of the tapered portion, while a fluid passage portion for supplying a working fluid to frictional coupling devices of the transmission portion is disposed in a space formed radially inwardly of the tapered portion. | 10-15-2009 |
20100179010 | HYBRID VEHICLE POWER TRANSMISSION DEVICE AND HYBRID VEHICLE - A hybrid vehicle power transmission device provided with a power distribution mechanism composed of a planetary gear device for distributing motive power of a drive source to a motor and an output shaft is further provided with a damper device in a power transmission path between the power distribution mechanism and a first motor. Consequently, the damper device receives only reaction torque dealt by the first motor through the power distribution mechanism with respect to drive torque of an engine. Thus, since the torque transmitted to the damper device is smaller than the drive torque of the engine, the torque capacity of the damper device can be decreased and the size of the damper device can be reduced. As a result, the overall size of the power transmission device can be similarly reduced. | 07-15-2010 |
20110092333 | VEHICLE POWER TRANSMISSION DEVICE - A vehicle power transmission device having a structure with a carrier of a planetary gear device brought into spline fitting with a case that is a non-rotating member to stop rotating and a ring gear of the planetary gear device rotatably supported by the case via a bearing, is provided with a play reducing device that presses the carrier against the case to reduce a play in thrust direction formed between the carrier and the case. | 04-21-2011 |
Ryuji Ibaraki, Aichi JP
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20080287251 | Power Transmission Device - A power transmission system having a positive displacement pump which is driven by a prime mover, and an output member which is driven by a fluid discharged from the positive displacement pump, characterized by comprising a rotational direction switching mechanism for switching a rotational direction of the output member between forward direction and backward direction. The rotational direction switching mechanism comprises a mechanism for switching a direction of a torque applied to the output member through the fluid between forward direction and backward direction. | 11-20-2008 |
20090118095 | CONTROLLER OF POWER TRANSMISSION - To provide a control system for a power transmission system capable of speed change control in conformity of a deceleration demand. | 05-07-2009 |
20090124454 | CONTROLLER OF VEHICLE AUTOMATIC TRANSMISSION - A control system capable of ensuring an engine braking force and a drive force even in case a failure occurs in a speed change ratio control or a deceleration control of an automatic transmission. The control system includes: a failure detecting mechanism for detecting a failure to set any of predetermined speed change ratios; and a speed change commanding mechanism for outputting a speed change command to set a speed change ratio larger than the current speed change ratio in accordance with a signal outputted when the failure detecting mechanism detects the failure. | 05-14-2009 |
Ryuji Ibaraki, Aichi-Ken JP
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20090062044 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - A belt type continuously variable transmission that includes a primary pulley; a secondary pulley; a belt where the primary pulley and the secondary pulley are bound; a positioning hydraulic chamber that presses a primary movable sheave to a primary fixed sheave; a supply-side valve that permits working oil to be supplied from the outside to the positioning hydraulic chamber; and a discharge-side control valve that controls permission or prohibition of discharge of the working oil from the positioning hydraulic chamber to the outside. The discharge-side control valve prohibits discharge of the working oil from the positioning hydraulic chamber to the outside when a position of the primary movable sheave is kept constant in the axial direction with respect to the primary fixed sheave. | 03-05-2009 |
Ryuji Ibaraki, Nishikano-Gun JP
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20080207375 | Hydraulic control apparatus for automatic transmission, and hybrid drive system provided with the same - A hydraulic control apparatus includes a switching device that switches between a hydraulic servo of the plurality of hydraulic servos of the first friction engaging element and a hydraulic servo of the plurality of hydraulic servos of the second friction engaging element so as to supply a control pressure from the one pressure regulating solenoid valve to each of the plurality of hydraulic servos, wherein the switching enables a control of an engagement and disengagement of the first friction engaging element and the second friction engagement element using the one pressure regulating solenoid valve. | 08-28-2008 |
Ryuji Ibaraki, Toyota-Shi JP
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20110139572 | Method For Manufacturing Steel Plate-Shaped Component, Pole Parking, And Cold Forging Die - The present invention provides a method for manufacturing a steel plate-shaped component which can increase the yield and the working efficiency. When a steel plate-shaped component ( | 06-16-2011 |
20150328974 | POWER TRANSMISSION UNIT FOR VEHICLE - A power transmission unit for a vehicle comprises: a motor arranged on an output side of an engine coaxially therewith in a housing adjacent to an outer face of the engine; an end cover arranged in the housing to cover an end portion of the motor to protect from the engine; a rotary shaft extending coaxially with the motor to be connected to an output shaft of the engine while penetrating through the end cover; and an engagement device disposed on an outer circumferential side of the rotary shaft between the motor and the engine to selectively restrict a rotation of the rotary shaft. A sub-cover to which the rotary shaft penetrates is attached to an end face of the end cover and a chamber is hermetically enclosed by the sub-cover, the end cover, and the rotary shaft. The engagement device is held in the housing. | 11-19-2015 |
Ryuji Ibaraki, Miyoshi-Shi JP
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20140335998 | POWER TRANSMISSION DEVICE FOR VEHICLE - A vehicle power transmission device is disposed on a hybrid vehicle having an engine and an electric motor, the vehicle power transmission device includes a first member having one of outer circumferential teeth disposed around one axial center or inner circumferential teeth meshing with the outer circumferential teeth and a second member having the other teeth, the inner circumferential teeth and the outer circumferential teeth meshes with each other to limit relative rotation around the one axial center between the first member and the second member, the relative rotation between the first member and the second member is limited to transmit torque of the electric motor to drive wheels. | 11-13-2014 |
Ryuji Ibaraki, Miyoshi-Shi, Aichi-Ken JP
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20160033002 | DAMPER APPARATUS - A damper apparatus according to an embodiment includes a pair of first plates, a second plate, an elastic member, a first friction material and a second friction material. The elastic member is configured to elastically deform in a circumferential direction of a rotation axis by a relative rotation between the pair of first plates and the second plate around the rotation axis. The first friction material is configured to generate a first friction torque in a case where the second plate rotates relative to the pair of first plates in a first direction from an initial state. The second friction material is configured to generate a second friction torque greater than the first friction torque in a case where the second plate rotates relative to the pair of first plates in a second direction which is opposite from the first direction from the initial state. | 02-04-2016 |