Patents by Inventor Hiroyuki Kutsubo
Hiroyuki Kutsubo 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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Patent number: 10174860Abstract: An electromagnetic valve for a transmission-use oil pressure control device including an oil pump that supplies oil pressure to a transmission, and an accumulator that accumulates an oil pressure generated by the oil pump. The electromagnetic valve includes: an electromagnetic valve main body connected to the accumulator and includes an oil path opening/closing valve element opening/closing an oil path between the accumulator and the transmission; a seal member disposed in the electromagnetic valve main body sealing against oil leakage from a sliding portion of the oil path opening/closing valve element in the opening/closing operation of the oil path opening/closing valve element; and a pressure regulation mechanism disposed in the electromagnetic valve main body regulating to release an internal pressure in the accumulator when an accumulator-side oil pressure in the electromagnetic valve main body rises to a predetermined pressure or more.Type: GrantFiled: March 4, 2016Date of Patent: January 8, 2019Assignees: AISIN AW CO., LTD., NACHI FUJIKOSHI CORP.Inventors: Yukihiro Noda, Shuichi Takeda, Katsutoshi Komatsu, Hiroyuki Kutsubo, Masamichi Yamaguchi, Masayuki Hara, Syunji Miyanishi, Kazuhiro Yoshii, Makoto Miyatake
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Patent number: 10125862Abstract: A hydraulic control device with a second oil passage check valve provided in the second oil passage between a connection portion with the first oil passage and the second solenoid valve, the second oil passage check valve being configured such that a hydraulic pressure is supplied in a direction from the second solenoid valve toward the first oil passage and a hydraulic pressure is not supplied in the opposite direction.Type: GrantFiled: January 28, 2015Date of Patent: November 13, 2018Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Koji Makino, Yoshimitsu Hyodo, Kenichi Tsuchida
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Patent number: 10107389Abstract: A hydraulic control device including: a throttle valve; a pressure regulating valve; an on/off solenoid valve of a normally open type that allows communication therethrough when not energized; and a failure circuit that, when power supply to the linear solenoid valve and the on/off solenoid valve is cut off, supplies a certain hydraulic pressure based on switching off of the on/off solenoid valve to the control oil chamber of the pressure regulating valve.Type: GrantFiled: February 12, 2015Date of Patent: October 23, 2018Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Koji Makino, Yoshimitsu Hyodo, Kenichi Tsuchida
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Publication number: 20180058604Abstract: An electromagnetic valve for a transmission-use oil pressure control device including an oil pump that supplies oil pressure to a transmission, and an accumulator that accumulates an oil pressure generated by the oil pump. The electromagnetic valve includes: an electromagnetic valve main body connected to the accumulator and includes an oil path opening/closing valve element opening/closing an oil path between the accumulator and the transmission; a seal member disposed in the electromagnetic valve main body sealing against oil leakage from a sliding portion of the oil path opening/closing valve element in the opening/closing operation of the oil path opening/closing valve element; and a pressure regulation mechanism disposed in the electromagnetic valve main body regulating to release an internal pressure in the accumulator when an accumulator-side oil pressure in the electromagnetic valve main body rises to a predetermined pressure or more.Type: ApplicationFiled: March 4, 2016Publication date: March 1, 2018Applicants: AISIN AW CO., LTD., NACHI FUJIKOSHI CORP.Inventors: Yukihiro NODA, Shuichi TAKEDA, Katsutoshi KOMATSU, Hiroyuki KUTSUBO, Masamichi YAMAGUCHI, Masayuki HARA, Syunji MIYANISHI, Kazuhiro YOSHII, Makoto MIYATAKE
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Patent number: 9879762Abstract: A jump shift of an automatic transmission with multiple shift speeds such as, e.g., ten forward speeds involves operation of many engagement elements. The shifting operation for the jump shift is therefore complicated, making it difficult for the automatic transmission to respond quickly. After shifting to the seventh speed as a direct coupling speed is completed by engaging three clutches C1, C3, C4, the remaining other clutch C2 is also engaged at the seventh speed. In the case of a jump shift, e.g., a shift from the seventh speed to the fifth speed, shifting to the fifth speed is completed by disengaging the clutch C1 and performing control to disengage the clutch C3 and to engage a brake B1 with the remaining other clutch C2 kept in the engaged state. This facilitates the shifting operation from the direct coupling speed and allows the automatic transmission to respond quickly.Type: GrantFiled: December 24, 2014Date of Patent: January 30, 2018Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Kutsubo, Nobuyuki Hirai, Masamichi Yamaguchi, Yoshimitsu Hyodo, Kenichi Tsuchida, Terufumi Miyazaki, Youhei Habata, Yoshio Hasegawa
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Patent number: 9863531Abstract: A hydraulic control device that includes a second switching valve that is switchable between a third position in which the forward range pressure input from the first switching valve is output to the shift controller and the reverse range pressure is blocked when the second signal pressure is off and a fourth position in which the reverse range pressure input from the first switching valve is output to the shift controller and the forward range pressure is blocked when the second signal pressure is on.Type: GrantFiled: February 12, 2015Date of Patent: January 9, 2018Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Koji Makino, Yoshimitsu Hyodo, Kenichi Tsuchida
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Patent number: 9803745Abstract: In a sleeve, two input ports are formed as ports that receive a discharge pressure of an electromagnetic pump, and a drain port connected to a drain oil passage is formed on the same circumference as that on which the input port is formed, so as to have a smaller opening area than the input port and an output port connected to an oil passage. The axial length of the second land is set so that the input port can be closed by the second land when a signal pressure is equal to or higher than a set pressure, and that the input port and the drain port can be closed by the second land when the signal pressure is lower than the set pressure.Type: GrantFiled: January 17, 2014Date of Patent: October 31, 2017Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Yoshimitsu Hyodo, Kenichi Tsuchida, Naoyuki Fukaya, Kazunori Ishikawa
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Patent number: 9765880Abstract: A hydraulic control device that includes a solenoid valve capable of supplying a first engagement pressure to the first engagement element; and a first cut valve that is interposed in an oil passage from the solenoid valve to the first engagement element and is capable of cutting off supply of a hydraulic pressure to the first engagement element, wherein only the first engagement pressure and a second engagement pressure serve as hydraulic pressures that act such that the first cut valve cuts off the supply of the hydraulic pressure to the first engagement element, and the first cut valve is switched so as to cut off the supply of the hydraulic pressure to the first engagement element when the first engagement pressure and the second engagement pressure are simultaneously supplied to the first engagement element and the second engagement element, respectively.Type: GrantFiled: December 26, 2014Date of Patent: September 19, 2017Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Maeda, Nobuyuki Hirai, Masamichi Yamaguchi, Yoshimitsu Hyodo, Kenichi Tsuchida, Hiroyuki Kutsubo
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Patent number: 9726277Abstract: A hydraulic control device that includes a solenoid valve capable of supplying a first engagement pressure to the first engagement element; and a first cut valve that is interposed in an oil passage from the solenoid valve to the first engagement element and is capable of cutting off supply of a hydraulic pressure to the first engagement element, wherein only the first engagement pressure and a second engagement pressure serve as hydraulic pressures that act such that the first cut valve cuts off the supply of the hydraulic pressure to the first engagement element, and the first cut valve is switched so as to cut off the supply of the hydraulic pressure to the first engagement element when the first engagement pressure and the second engagement pressure are simultaneously supplied to the first engagement element and the second engagement element, respectively.Type: GrantFiled: December 26, 2014Date of Patent: August 8, 2017Assignee: AISIN AW CO., LTD.Inventors: Yoshihiro Maeda, Nobuyuki Hirai, Masamichi Yamaguchi, Yoshimitsu Hyodo, Kenichi Tsuchida, Hiroyuki Kutsubo
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Patent number: 9568093Abstract: A hydraulic control device includes a C1 relay valve 70 whose state is switched based on a signal pressure that is generated based on a line pressure PL, and a check valve 80 attached to a drain oil passage L7. A set pressure of the check valve 80 is adjusted to an oil pressure that is lower than the maximum oil pressure obtained by discharge capability of an electromagnetic pump 60 and higher than an SL1 pressure Psl1 remaining in a hydraulic servo of a clutch C1 when the state of the C1 relay valve 70 is switched after a mechanical oil pump 42 is stopped. Operation of the electromagnetic pump 60 is started before the state of the C1 relay valve 70 is switched after the mechanical oil pump 42 is stopped.Type: GrantFiled: January 20, 2014Date of Patent: February 14, 2017Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Yoshimitsu Hyodo, Kenichi Tsuchida, Naoyuki Fukaya, Kazunori Ishikawa
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Patent number: 9568090Abstract: A spool valve that has a hollow portion formed with an input port, a first output port, and a second output port, and a spool capable of sliding within the hollow portion and having a plurality of lands, the spool valve being configured to distribute output for input to the input port to the first output port and the second output port in accordance with a proportion of distribution that matches a position of the spool. An opening of the second output port is formed in such a shape that a width of the opening becomes gradually smaller in a direction of movement of the spool in which distribution of the output to the first output port is increased.Type: GrantFiled: December 20, 2012Date of Patent: February 14, 2017Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Tetsuya Shimizu, Kenichi Tsuchida, Kazunori Ishikawa, Tomomi Ishikawa
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Patent number: 9546730Abstract: A hydraulic control device is provided with a solenoid valve, a pressure regulating valve, a switching valve, and a control unit. The control unit, when shifting from a first shift speed to a second shift speed, causes a first signal pressure to be input to an oil chamber of the switching valve with the pressure regulating valve, and presses a valving element to a first input port side to be locked at a blocking position at which communication between the first input port and an output port is blocked at least until a third engagement element is brought into an engaged state from a disengaged state.Type: GrantFiled: January 30, 2015Date of Patent: January 17, 2017Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Koji Makino, Yoshimitsu Hyodo, Kenichi Tsuchida
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Publication number: 20160377175Abstract: A hydraulic control device that includes a solenoid valve capable of supplying a first engagement pressure to the first engagement element; and a first cut valve that is interposed in an oil passage from the solenoid valve to the first engagement element and is capable of cutting off supply of a hydraulic pressure to the first engagement element, wherein only the first engagement pressure and a second engagement pressure serve as hydraulic pressures that act such that the first cut valve cuts off the supply of the hydraulic pressure to the first engagement element, and the first cut valve is switched so as to cut off the supply of the hydraulic pressure to the first engagement element when the first engagement pressure and the second engagement pressure are simultaneously supplied to the first engagement element and the second engagement element, respectively.Type: ApplicationFiled: December 26, 2014Publication date: December 29, 2016Applicant: AISIN AW CO., LTD.Inventors: Yoshihiro MAEDA, Nobuyuki HIRAI, Masamichi YAMAGUCHI, Yoshimitsu HYODO, Kenichi TSUCHIDA, Hiroyuki KUTSUBO
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Publication number: 20160334013Abstract: A hydraulic control device with a second oil passage check valve provided in the second oil passage between a connection portion with the first oil passage and the second solenoid valve, the second oil passage check valve being configured such that a hydraulic pressure is supplied in a direction from the second solenoid valve toward the first oil passage and a hydraulic pressure is not supplied in the opposite direction.Type: ApplicationFiled: January 28, 2015Publication date: November 17, 2016Applicant: AISIN AW CO., LTD.Inventors: Hiroyuki KUTSUBO, Kazuki KOJIMA, Koji MAKINO, Yoshimitsu HYODO, Kenichi TSUCHIDA
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Publication number: 20160327154Abstract: A hydraulic control device that includes a second switching valve that is switchable between a third position in which the forward range pressure input from the first switching valve is output to the shift controller and the reverse range pressure is blocked when the second signal pressure is off and a fourth position in which the reverse range pressure input from the first switching valve is output to the shift controller and the forward range pressure is blocked when the second signal pressure is on.Type: ApplicationFiled: February 12, 2015Publication date: November 10, 2016Applicant: AISIN AW CO., LTD.Inventors: Hiroyuki KUTSUBO, Kazuki KOJIMA, Koji MAKINO, Yoshimitsu HYODO, Kenichi TSUCHIDA
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Publication number: 20160327155Abstract: A hydraulic control device including: a throttle valve; a pressure regulating valve; an on/off solenoid valve of a normally open type that allows communication therethrough when not energized; and a failure circuit that, when power supply to the linear solenoid valve and the on/off solenoid valve is cut off, supplies a certain hydraulic pressure based on switching off of the on/off solenoid valve to the control oil chamber of the pressure regulating valve.Type: ApplicationFiled: February 12, 2015Publication date: November 10, 2016Applicant: AISIN AW CO., LTD.Inventors: Hiroyuki KUTSUBO, Kazuki KOJIMA, Koji MAKINO, Yoshimitsu HYODO, Kenichi TSUCHIDA
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Publication number: 20160290443Abstract: A jump shift of an automatic transmission with multiple shift speeds such as, e.g., ten forward speeds involves operation of many engagement elements. The shifting operation for the jump shift is therefore complicated, making it difficult for the automatic transmission to respond quickly. After shifting to the seventh speed as a direct coupling speed is completed by engaging three clutches C1, C3, C4, the remaining other clutch C2 is also engaged at the seventh speed. In the case of a jump shift, e.g., a shift from the seventh speed to the fifth speed, shifting to the fifth speed is completed by disengaging the clutch C1 and performing control to disengage the clutch C3 and to engage a brake B1 with the remaining other clutch C2 kept in the engaged state. This facilitates the shifting operation from the direct coupling speed and allows the automatic transmission to respond quickly.Type: ApplicationFiled: December 24, 2014Publication date: October 6, 2016Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki KUTSUBO, Nobuyuki HIRAI, Masamichi YAMAGUCHI, Yoshimitsu HYODO, Kenichi TSUCHIDA, Terufumi MIYAZAKI, Youhei HABATA, Yoshio HASEGAWA
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Publication number: 20160265656Abstract: A hydraulic control device is provided with a solenoid valve, a pressure regulating valve, a switching valve, and a control unit. The control unit, when shifting from a first shift speed to a second shift speed, causes a first signal pressure to be input to an oil chamber of the switching valve with the pressure regulating valve, and presses a valving element to a first input port side to be locked at a blocking position at which communication between the first input port and an output port is blocked at least until a third engagement element is brought into an engaged state from a disengaged state.Type: ApplicationFiled: January 30, 2015Publication date: September 15, 2016Applicant: AISIN AW CO., LTD.Inventors: Hiroyuki KUTSUBO, Kazuki KOJIMA, Koji MAKINO, Yoshimitsu HYODO, Kenichi TSUCHIDA
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Patent number: 9243703Abstract: A lubricating oil supply device that supplies hydraulic oil used to actuate a vehicle's transmission. The supply device configured with a pump that generates a hydraulic pressure, and a line pressure generation valve that discharges a part of the hydraulic pressure from the pump as a discharge pressure to generate a line pressure for actuating the transmission. A signal pressure output valve that outputs a signal pressure for actuating the line pressure generation valve in accordance with at least a throttle operation amount or torque input to the transmission. Furthermore, a switching valve that is actuated by the signal pressure from the signal pressure output valve and that supplies lubricating oil input to an input port to the object to be lubricated from an output port with a flow rate of the lubricating oil changed.Type: GrantFiled: December 20, 2012Date of Patent: January 26, 2016Assignee: AISIN AW CO., LTD.Inventors: Hiroyuki Kutsubo, Kazuki Kojima, Tetsuya Shimizu, Kenichi Tsuchida, Kazunori Ishikawa
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Publication number: 20160003309Abstract: A hydraulic control device that includes a pressure regulating valve capable of regulating a source pressure to generate a control pressure higher than the oil pressure in the circulation oil chamber and supplying the control pressure to the engagement port, wherein when disengaging the lockup clutch, the hydraulic oil is circulated in the circulation oil chamber via the circulation input port and the circulation output port, and part of the hydraulic oil circulated in the circulation oil chamber is supplied to the engagement port, and when engaging the lockup clutch, the supply of the hydraulic oil circulated in the circulation oil chamber to the engagement port is cut off, and the control pressure is supplied to the engagement port.Type: ApplicationFiled: March 27, 2014Publication date: January 7, 2016Applicant: AISIN AW CO., LTD.Inventors: Hiroyuki KUTSUBO, Masamichi YAMAGUCHI, Yoshimitsu HYODO, Kenichi TSUCHIDA, Kazunori ISHIKAWA