Patents by Inventor Yuji Inoue
Yuji Inoue has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090227407Abstract: A control apparatus for a vehicular drive system including a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor connected to the power transmitting member. The control apparatus, which permits size reduction of the vehicular drive system, or improvements of fuel economy and vehicle drivability, includes a switching clutch or switching brake for switching a the differential mechanism between a continuously-variable shifting state and a step-variable shifting state, to enable the drive system to have both of an advantage of a fuel economy improvement of a transmission the speed ratio of which is electrically variable, and an advantage of high power transmitting efficiency of a gear type power transmitting device.Type: ApplicationFiled: March 15, 2006Publication date: September 10, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kamada, Atsushi Tabata, Yuji Inoue
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Patent number: 7566289Abstract: A shift control ECU includes the steps of storing a position of a shift lever; starting a count-up timer when the shift lever comes to a neutral position; and recognizing a driver's request for the neutral position when a count-up timer value attains TN(1) if the stored shift lever position is a home position and when a count-up timer value attains TN(2) if the stored shift lever position is not the home position. Here, TN(1) is set to be smaller than TN(2).Type: GrantFiled: September 26, 2008Date of Patent: July 28, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Inoue, Yasushi Kobiki, Toshiharu Asai, Takehiro Uchida, Yasuo Shimizu
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Patent number: 7566288Abstract: A control apparatus for a vehicular drive system including a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle.Type: GrantFiled: May 26, 2006Date of Patent: July 28, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090176619Abstract: Control apparatuses (6, 10) include an ending process element that, when a locked state is established within a reference period after operation of a parking mechanism (5), performs a normal ending process that stops a vehicle drive source (1) and switches to an ignition off position, and when the locked state is not established within the reference period, performs an abnormal ending process that stops the vehicle drive source (1) and switches to an accessory position; and a support process element that, when the parking mechanism (5) is operated, if a vehicle speed increase is detected, performs a support process that prohibits operation of the parking mechanism (5) and extends the reference period.Type: ApplicationFiled: March 12, 2009Publication date: July 9, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yuji Inoue
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Patent number: 7549944Abstract: A control apparatus for a vehicular drive system provided with a step-variable transmission portion operable to transmit an output of an engine to a drive wheel of a vehicle and functioning as a step-variable transmission, and an input clutch operable to permit and inhibit an input of a drive force from the engine to the step-variable transmission portion, the control apparatus including an input-clutch control portion operable to reduce a torque capacity of the input clutch, during a shifting action of the step-variable transmission portion, for limiting a torque to be transmitted to the step-variable transmission portion, to a value not larger than a predetermined value.Type: GrantFiled: June 21, 2006Date of Patent: June 23, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Patent number: 7547266Abstract: A shift control ECU includes the steps of storing a position of a shift lever; starting a count-up timer when the shift lever comes to a neutral position; and recognizing a driver's request for the neutral position when a count-up timer value attains TN(1) if the stored shift lever position is a home position and when a count-up timer value attains TN(2) if the stored shift lever position is not the home position. Here, TN(1) is set to be smaller than TN(2).Type: GrantFiled: July 21, 2006Date of Patent: June 16, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Inoue, Yasushi Kobiki, Toshiharu Asai, Takehiro Uchida, Yasuo Shimizu
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Publication number: 20090091866Abstract: A shift-by-wire shift switching device and shift switching method that switch a shift range of an automatic transmission using an electric motor. The shift switching device includes a controller that determines whether a fault has occurred in a current supply line of each phase of the electric motor on a phase-by-phase basis, executes an open-loop control of the electric motor using only the phases in which it has been determined that a fault has not occurred, and determines whether a fault has occurred in the current supply line by detecting an activation state of the electric motor when the open-loop control of the electric motor is executed. Therefore, it is possible to determine whether a fault in the motor is a short-circuit fault or a break fault, without addition of a part such as a short-circuit detection sensor.Type: ApplicationFiled: September 30, 2008Publication date: April 9, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Yuji INOUE, Eiji ISOBE, Shigeru KAMIO
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Publication number: 20090088290Abstract: A vehicle drive apparatus is disclosed having a differential mechanism and an electric motor provided in the differential mechanism for miniaturizing the drive apparatus or improving fuel consumption while suppressing the occurrence of shifting shocks. A switching clutch C0 or switching brake B0 is provided for placing a shifting mechanism 10 in a continuously variable shifting state and a step variable shifting state, enabling the drive apparatus to have combined advantages including a fuel economy improving effect of a transmission, enabled to electrically change a speed ratio, and a high transmitting efficiency of a gear type transmitting device enabled to mechanically transmit drive power.Type: ApplicationFiled: May 19, 2006Publication date: April 2, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090076694Abstract: A control apparatus for a vehicular drive system arranged to electrically transmit a portion of an output force of an engine through an electric path, which control apparatus is configured to reduce loads of components associated with the electric path and to restrict a temperature rise of the components associated with the electric path, making it possible to reduce the required size of a cooling system.Type: ApplicationFiled: June 14, 2006Publication date: March 19, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Patent number: 7503870Abstract: A control apparatus for a vehicular drive system including a continuously-variable transmission portion, and a step-variable transmission portion, the continuously variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, the step-variable transmission portion constituting a part of the power transmitting path, the control apparatus includes a differential-state limiting device provided in the differential mechanism for limiting an operation of the continuously-variable transmission portion, and an electric-motor control device to control a drive-force assisting operation to drive the vehicle during a shifting action of the step-variable transmission portion, differently depending upon whether the continuously-variable transmission portion is placed in a continuously-vType: GrantFiled: May 26, 2006Date of Patent: March 17, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Patent number: 7503872Abstract: The present invention is, in a control apparatus for (a) a vehicular drive system including: a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission and having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle; and a transmission portion constituting a part of the power transmitting path, characterized by including: (b) a differential-state limiting device provided in the differential mechanism, and operable to limit a differential function of the differential mechanism, for limiting an operation of the continuously-variable transmission portion as the electrically controlled continuously variable transmission; and (c) electric-motor control means operable to reduce a rotational speed of the engine by using the first electric motor and/Type: GrantFiled: June 7, 2006Date of Patent: March 17, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090048050Abstract: A drive apparatus for vehicle is disclosed having a coupling device (switching clutch B0 or switching brake C0) operative to switch a transmission mechanism 10 between a continuously variable shifting state and a step-variable shifting state with both advantages including improved fuel consumption achieved by a transmission, enabled to electrically control a speed ratio, and increased power transmitting efficiency provided by a gear-type transmitting device in which drive power is mechanically transmitted. With the transmission mechanism 10, switching control means 50 allows a differential portion 11 to be maintained in the continuously variable shifting state or the differential portion 11 is preferentially placed in the continuously variable shifting state during a start-up of an engine.Type: ApplicationFiled: March 3, 2006Publication date: February 19, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kamada, Atsushi Tabata, Yuji Inoue
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Publication number: 20090031835Abstract: A shift control ECU includes the steps of storing a position of a shift lever; starting a count-up timer when the shift lever comes to a neutral position; and recognizing a driver's request for the neutral position when a count-up timer value attains TN(1) if the stored shift lever position is a home position and when a count-up timer value attains TN(2) if the stored shift lever position is not the home position. Here, TN(1) is set to be smaller than TN(2).Type: ApplicationFiled: September 26, 2008Publication date: February 5, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji INOUE, Yasushi Kobiki, Toshiharu Asai, Takehiro Uchida, Yasuo Shimizu
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Publication number: 20090037061Abstract: A control apparatus for a vehicular drive system including a differential mechanism including an electric motor. The drive system includes a switching clutch and switching brake to switch the transmission mechanism between a continuously-variable shifting state and a step-variable shifting state. A shifting control mechanism changes a manner of controlling shifting action of the transmission mechanism during shifting action of an automatic transmission portion, for reducing a shifting shock, depending upon whether a differential portion is placed in the continuously-variable shifting state in which engine speed is variable due to differential function irrespective of rotating speed of power transmitting member, or the non-continuously-variable shifting state in which the engine speed is more difficult to be variable than in the continuously-variable shifting state.Type: ApplicationFiled: March 29, 2006Publication date: February 5, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090029819Abstract: A transmission mechanism including a switching clutch or brake that is switchable between a continuously-variable shifting state and a step-variable shifting state, and has both an advantage of improved fuel economy provided by a transmission, the speed ratio of which is electrically variable, and an advantage of high power transmitting efficiency provided by a gear type power transmitting device constructed for mechanical transmission of power. While a clutch-to-clutch shifting action of an automatic transmission portion is in a tie-up state, a differential portion is placed in a continuously-variable shifting state by switching control, and engine speed is changed under the control of hybrid control, so as to prevent a drop of the engine speed for thereby reducing a shock of the shifting action, unlike in a non-continuously-variable shifting state of the differential portion in which the engine speed is directly influenced by the tie-up state.Type: ApplicationFiled: May 30, 2006Publication date: January 29, 2009Applicant: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Atsushi Kamada, Yuji Inoue
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Publication number: 20090029657Abstract: An auto frequency control method of this invention has a first step of a base station BS detecting a frequency deviation ?fBS of an uplink signal transmitted from a mobile station MS, a second step of the base station BS transmitting an instructing amount of increase or decrease fcont of the transmission frequency fMS of the uplink signal to the mobile station MS on the basis of the frequency deviation ?fBS of the uplink signal, and a third step of the mobile station MS shifting the transmission frequency fMS of the uplink signal according to the instructing amount of increase or decrease fcont transmitted from the base station BS.Type: ApplicationFiled: July 25, 2006Publication date: January 29, 2009Applicants: MITSUBISHI ELECTRIC CORPORATION, NTT DoCoMo, Inc,Inventors: Takuya Sakaishi, Kazuaki Ishioka, Yuji Inoue, Shingo Higuchi
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Patent number: 7481264Abstract: A steam condenser which condenses steam exhausted from a steam turbine. Heat transfer tubes are arrayed below the steam turbine inside the container. Cooling medium flows inside the heat transfer tubes. The heat transfer tubes extend horizontally, and include at least two upper heat transfer tube groups and at least two lower heat transfer tube groups arranged with a gap between each other. Each heat transfer tube group is constituted by arraying heat transfer tubes like a grid. At a lower part between the lower heat transfer tube groups, a baffle plate which obstructs flow of steam extends horizontally. Between the upper and lower heat transfer tube groups, inter-tube-group inundation prevention plates extend horizontally. In each heat transfer tube group, an enclosure part extends to guide gas from the enclosure part to outside of the container through a gas extraction duct.Type: GrantFiled: May 27, 2005Date of Patent: January 27, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Toshihiro Yoshii, Shunichi Goshima, Yukio Takigawa, Tomoko Nakajima, legal representative, Yuuichi Nakajima, legal representative, Miyuki Nakajima, legal representative, Fumio Obara, Akira Nemoto, Shunji Kawano, Yuji Inoue, Shoji Nakajima
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Patent number: 7481737Abstract: A control apparatus for a vehicular drive system including a first transmission portion having a differential mechanism operable to distribute an engine output to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel; and a second transmission portion constituting a part of the power transmitting path.Type: GrantFiled: June 21, 2006Date of Patent: January 27, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Publication number: 20090011895Abstract: A control apparatus for a vehicular drive system including (a) a differential portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, a second electric motor disposed in a power transmitting path between the power transmitting member and a vehicle drive wheel, and a switching clutch and a switching brake provided in the differential mechanism and operable to limit a differential function of the differential portion, and (b) a step-variable automatic transmission portion constituting a part of the power transmitting path and operable to perform a clutch-to-clutch shifting action by a releasing action of a coupling device and an engaging action of another coupling device, the control apparatus including a step-variable shifting control configured to change an amount of racing of an input speed of the automatic transmission portion during the clutch-to-clutch shifting action, depending upon whether the differential functionType: ApplicationFiled: May 26, 2006Publication date: January 8, 2009Applicant: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20080239292Abstract: To provide a defect inspection apparatus and defect inspection method adapted to make it possible to easily assign threshold levels to a plurality of scattered-light detectors and to appropriately acquire data detected by each of the scattered-light detectors.Type: ApplicationFiled: March 27, 2008Publication date: October 2, 2008Inventors: Koji Kawaki, Atsushi Takane, Hiroshi Kikuchi, Nobuhiro Obara, Yuji Inoue