Patents by Inventor Hiromichi Kimura
Hiromichi Kimura 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: 20100274427Abstract: A speed-change mode is changed from a stepless speed-change mode to a fixed speed-change mode while limiting or controlling the torque variation of an output member. An ECU 100 performs speed-change control. In the speed-change control, if a request is provided to change the speed-change mode from the stepless speed-change mode to the fixed speed-change mode, the ECU 100 engages the clutch mechanism 350 after the rotational synchronization and the phase synchronization of the clutch mechanism 350. After engaging the clutch mechanism 350, the ECU 100 gradually reduces the output torque of a motor generator MG1 and gradually changes a reaction element from a sun gear 331 to a sun gear 341. At this time, the output torque of a motor generator MG2 is also gradually reduced.Type: ApplicationFiled: December 24, 2008Publication date: October 28, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Ebuchi, Hiromichi Kimura, Masaki Mitsuyasu
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Patent number: 7819776Abstract: A control apparatus for an automatic transmission including a gear-type transmission mechanism connected to an output shaft of a motive power source, the gear-type transmission including plural frictional engagement elements. The control apparatus senses a power-on downshift in which the frictional engagement elements are engaged during a downshift in a driving state of the motive power source, controls the motive power source so that in the power-on downshift an output of the motive power source is reduced, counts a time during which an input rotational speed of the transmission mechanism approximates an after-shift synchronous rotational speed, and controls the motive power source so that, if the time exceeds a predetermined time while the output of the motive power source is reduced, recovery from the reduction of the output of the motive power source is attained.Type: GrantFiled: March 8, 2006Date of Patent: October 26, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroomi Toi, Koji Hattori, Ayuma Sagawa, Koji Oshima, Hiromichi Kimura
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Patent number: 7722500Abstract: When an N position sensor is ON, even though the N position is selected, the oil pressure supplied to a clutch C1 which is engaged during the transition from the non-running state to the running state is raised in advance to a predetermined oil pressure; and, if a running request is detected when a D position decision has not been made, irrespective of whether or not a shift lever has been shifted from its N position to its D position, first speed starting off from rest control is performed, in which the oil pressure supplied to the clutch C1 is raised to an oil pressure at which the clutch C1 is capable of power transmission.Type: GrantFiled: December 1, 2006Date of Patent: May 25, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshimitsu Sato, Hiromichi Kimura, Kentarou Okada
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Publication number: 20100116615Abstract: A transmission includes a transmission case, an oil pan that is defined in a lower portion within the transmission case and stores a lubricating medium capable at least of lubricating components of the transmission, movable engagement members capable of engaging with two elements that respectively correspond thereto, and electromagnetic actuators that respectively move a corresponding one of the movable engagement members to allow a connection between the two elements and a release of the connection.Type: ApplicationFiled: April 3, 2008Publication date: May 13, 2010Inventors: Hidehiro Oba, Hiromichi Kimura
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Patent number: 7669544Abstract: To provide a display apparatus which is intended to improve the miniaturization and illumination efficiency, an indicator 8 is disposed on the rear surface side of a transparent display panel 3. A printed board 5 mounts a movement 7 on the front surface thereof so as not to overlap the movement 7 and the transparent display panel 3 and mounts the indicator 8 on the rear surface thereof. LEDs 6 for the transparent display panel are mounted on the front surface of the printed board 5 so as to oppose to the outer peripheral surface of the transparent display panel 3.Type: GrantFiled: May 9, 2008Date of Patent: March 2, 2010Assignee: Yazaki CorporationInventors: Hiromichi Kimura, Kouichi Takao
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Publication number: 20100023193Abstract: In a hybrid vehicle provided with a power dividing mechanism comprising a clutch mechanism, an ECU performs speed-change control. In the control, the ECU performs an engage preparing process if it is necessary to engage clutch plates of the clutch mechanism with each other. In the process, the ECU switches a reference value which is referred in a feedback control for performing a rotation synchronization and a position synchronization for the clutch plates from a calculated value which is calculated from a pulse signal of first rotational sensor mounted the clutch plate to an estimated value which is estimated from a pulse signal of each of second and third rotational sensors for detecting rotational speed of each motor generators if clutch rotational speed as rotational speed corresponding to the clutch plate as an engagement element decreases to less than a criterion value.Type: ApplicationFiled: July 10, 2009Publication date: January 28, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroaki Ebuchi, Hiromichi Kimura, Hirotatsu Kitabatake, Takaji Umeno
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Patent number: 7641031Abstract: When a traveling state is in an engagement range of a lock-up clutch, an ECU executes a program including a step of executing slip control if preconditions are satisfied and learning start conditions are satisfied, a step of updating a learning value if an output value is not greater than an FF control value+? or not smaller than the FF control value+?, and a step of engaging the lock-up clutch.Type: GrantFiled: May 30, 2006Date of Patent: January 5, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuaki Nakamura, Hiromichi Kimura, Kazuyuki Watanabe
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Patent number: 7637833Abstract: An ECU executes a program including the steps of: starting disengagement of a C2 clutch and a B1 brake when downshifting a transmission implementing gears in accordance with combinations of engaged clutches and brakes from sixth gear to third gear, or disengagement of the C2 clutch and a B3 brake when downshifting from fifth gear to second gear; when at least one of the C2 clutch and the B1 brake, or at least one of the C2 clutch and the B3 brake, is completely disengaged, starting engagement of a C1 clutch and the B3 brake when downshifting from sixth gear to third gear, or engagement of the C1 clutch and the B1 brake when downshifting from fifth gear to second gear.Type: GrantFiled: September 28, 2006Date of Patent: December 29, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Eiji Fukushiro, Hiromichi Kimura, Koji Oshima, Ayumu Sagawa
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Patent number: 7563195Abstract: Since there are provided an inertia phase final period decision unit which decides whether or not the final period of the inertia phase of a speed change is currently occurring, a return control unit which, taking an affirmative result of this decision as a starting condition, performs return control in order to return from the torque down control by gradually decreasing the amount of decrease of output torque, a speed change progression decision unit which, during this return control from the torque down control, decides whether or not the speed change is progressing, and a resumption control unit which resumes the torque down control if the result of this decision is negative, accordingly, during the return control from the torque down control, by resuming the torque down control when there is no progression with the speed change.Type: GrantFiled: December 1, 2006Date of Patent: July 21, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keisuke Ota, Hiromichi Kimura, Toshimitsu Sato, Koji Hattori
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Publication number: 20090055063Abstract: An ECU executes a program including: a step (S100) of detecting a turbine revolution speed, a step (S200) of detecting an engine torque TE, a step (S300) of detecting a speed change ratio, a step (S500) of setting a range an enlarged slip region when a slip region enlargement condition is satisfied (YES in S400), and a step (S600) of enlarging the slip region toward a lock-up region side (high-load side).Type: ApplicationFiled: April 17, 2006Publication date: February 26, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuaki Nakamura, Hiromichi Kimura, Shun Minaki, Koji Oshima, Tomohiro Asami, Takahiro Kondo
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Patent number: 7481734Abstract: A hydraulic control apparatus of a vehicular automatic transmission has a plurality of hydraulic friction engagement devices that are selectively engaged and released to establish a plurality of forward speed change stages of different speed change ratios. The forward speed change stages are achieved through engagement of predetermined friction engagement devices, of the plurality of friction engagement devices. If it is determined that a predetermined speed change stage corresponding to a predetermined shift output is not established, the hydraulic control apparatus identifies a hydraulic friction engagement device having a bad engagement that is a cause of the non-establishment of the predetermined speed change stage, on the basis of the state of engagement oil pressure of the predetermined friction engagement device.Type: GrantFiled: July 18, 2006Date of Patent: January 27, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masaru Morise, Hideki Miyata, Hiromichi Kimura, Yuji Yasuda
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Publication number: 20080312037Abstract: A control apparatus for an automatic transmission including a gear-type transmission mechanism connected to an output shaft of a motive power source, the gear-type transmission including plural frictional engagement elements. The control apparatus senses a power-on downshift in which the frictional engagement elements are engaged during a downshift in a driving state of the motive power source, controls the motive power source so that in the power-on downshift an output of the motive power source is reduced, counts a time during which an input rotational speed of the transmission mechanism approximates an after-shift synchronous rotational speed, and controls the motive power source so that, if the time exceeds a predetermined time while the output of the motive power source is reduced, recovery from the reduction of the output of the motive power source is attained.Type: ApplicationFiled: March 8, 2006Publication date: December 18, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroomi Toi, Koji Hattori, Ayumu Sagawa, Koji Oshima, Hiromichi Kimura
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Publication number: 20080282588Abstract: To provide a display apparatus which is intended to improve the miniaturization and illumination efficiency, an indicator 8 is disposed on the rear surface side of a transparent display panel 3. A printed board 5 mounts a movement 7 on the front surface thereof so as not to overlap the movement 7 and the transparent display panel 3 and mounts the indicator 8 on the rear surface thereof. LEDs 6 for the transparent display panel are mounted on the front surface of the printed board 5 so as to oppose to the outer peripheral surface of the transparent display panel 3.Type: ApplicationFiled: May 9, 2008Publication date: November 20, 2008Applicant: YAZAKI CORPORATIONInventors: Hiromichi KIMURA, Kouichi TAKAO
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Publication number: 20080248925Abstract: An ECU executes a program having a step (S100) of detecting engine speed NE, a step (S110) of detecting turbine speed NT, a step (S120) of calculating a slip amount N(SLP) of a torque converter as (NE-NM, a step (S130) of calculating a hydraulic pressure control value based on the slip amount N(SLP) and a map, and a step (S140) of outputting a hydraulic pressure control signal to a linear solenoid. The map is set such that the hydraulic pressure control value decreases as the slip amount N(SLP) increases in positive values.Type: ApplicationFiled: March 1, 2006Publication date: October 9, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuaki Nakamura, Hiromichi Kimura, Koji Oshima, Tomohiro Asami, Takahiro Kondo
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Publication number: 20080215218Abstract: ECU executes a program including the step (S108) of setting a B2 brake to a engaging state when a first speed gear is effected (YES at S100) and when the difference between an output shaft rotation speed NOUT (1) estimated from an input shaft rotation speed NIN and the detected output shaft rotation speed NOUT (2) is larger than a threshold N (0) (YES at S106). When the B2 brake is in an engaged state, the relative rotation between the inner race and the outer race of one-way clutch is limited.Type: ApplicationFiled: April 13, 2006Publication date: September 4, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuyuki Watanabe, Hiromichi Kimura, Koji Oshima, Masaru Morise, Hirofumi Onishi
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Publication number: 20080174480Abstract: The present invention provides an information processing terminal, comprising a request reception unit that receives a function request, GPS signals reception unit that receives a GPS signal, a current position measuring unit that determines the latitude and longitude of the current position of the information processing terminal based upon the GPS signal, a defining information recording unit in which defining information related to the functions that can be engaged at the information processing terminal is recorded, a function decision-making unit that makes a decision as to whether or not a function can be engaged based upon the defining information and the latitude and longitude of the current position having been measured by the current position measuring unit and a data read/write unit that reads/writes data from/into a data area among a plurality of data areas based upon the results of the decision made by the function decision-making unit.Type: ApplicationFiled: December 20, 2007Publication date: July 24, 2008Inventors: Hiromichi Kimura, Taro Kurita, Mitsugi Iwahashi
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Patent number: 7370744Abstract: In a friction engagement device of an automatic transmission, a brake piston is actuated by an oil pressure and a friction disc is pressed by the brake piston. The friction engagement device of an automatic transmission includes an oil pressure chamber extending in an annular shape and a main oil pressure supply path and a secondary oil pressure supply path each extending separately to supply oil to the oil pressure chamber. Each of the main oil pressure supply path and secondary oil pressure supply path connects to the oil pressure chamber in a position different from each other in a circumferential direction of the oil pressure chamber. With a construction as such, a friction engagement device of an automatic transmission is provided which prevents a load to the friction disc from locally increasing and attains a smooth speed-changing operation.Type: GrantFiled: October 4, 2005Date of Patent: May 13, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hirofumi Fujita, Hiromichi Kimura, Kazuyuki Watanabe, Kazuaki Nakamura
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Publication number: 20070149356Abstract: When an N position sensor is ON, even though the N position is selected, the oil pressure supplied to a clutch C1 which is engaged during the transition from the non-running state to the running state is raised in advance to a predetermined oil pressure; and, if a running request is detected when a D position decision has not been made, irrespective of whether or not a shift lever has been shifted from its N position to its D position, first speed starting off from rest control is performed, in which the oil pressure supplied to the clutch C1 is raised to an oil pressure at which the clutch C1 is capable of power transmission.Type: ApplicationFiled: December 1, 2006Publication date: June 28, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshimitsu SATO, Hiromichi Kimura, Kentarou Okada
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Publication number: 20070149354Abstract: Since there are provided an inertia phase final period decision unit which decides whether or not the final period of the inertia phase of a speed change is currently occurring, a return control unit which, taking an affirmative result of this decision as a starting condition, performs return control in order to return from the torque down control by gradually decreasing the amount of decrease of output torque, a speed change progression decision unit which, during this return control from the torque down control, decides whether or not the speed change is progressing, and a resumption control unit which resumes the torque down control if the result of this decision is negative, accordingly, during the return control from the torque down control, by resuming the torque down control when there is no progression with the speed change.Type: ApplicationFiled: December 1, 2006Publication date: June 28, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke OTA, Hiromichi KIMURA, Toshimitsu SATO, Koji HATTORI
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Publication number: 20070082785Abstract: An ECU executes a program including the steps of: starting disengagement of a C2 clutch and a B1 brake when downshifting a transmission implementing gears in accordance with combinations of engaged clutches and brakes from sixth gear to third gear, or disengagement of the C2 clutch and a B3 brake when downshifting from fifth gear to second gear; when at least one of the C2 clutch and the B1 brake, or at least one of the C2 clutch and the B3 brake, is completely disengaged, starting engagement of a C1 clutch and the B3 brake when downshifting from sixth gear to third gear, or engagement of the C1 clutch and the B1 brake when downshifting from fifth gear to second gear.Type: ApplicationFiled: September 28, 2006Publication date: April 12, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Eiji Fukushiro, Hiromichi Kimura, Koji Oshima, Ayumu Sagawa