Patents by Inventor Keisuke Sekiya
Keisuke Sekiya 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: 10166953Abstract: When a P lock state is set on the basis of a predetermined request signal for setting the P lock state, a P position indicator lamp (62) is turned on or off on the basis of the status of power supplied to the vehicle (10). For example, when the P lock state is set, the P position indicator lamp (62) is turned off when the power status is an ALL-OFF status where a combination meter (56), or the like, is not turned on or is raised to an ACC-ON status; whereas, when the P lock state is set, the P position indicator lamp (62) is turned on when the power status is an IG-ON status, when the power status is changed from the IG-ON status during vehicle driving to the ACC-ON status, or within a predetermined period of time from when the power status is changed from the IG-ON status to the ALL-OFF status.Type: GrantFiled: November 5, 2010Date of Patent: January 1, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takahiko Tsutsumi, Keisuke Sekiya, Koki Ueno, Ichiro Kitaori, Toshinari Suzuki
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Patent number: 9611932Abstract: When initial drive control for an actuator driving a shift switch mechanism is completed, a P-ECU determines whether an IG signal is received. In the case where the P-ECU has not received the IG signal at the time when the initial drive control is completed, the P-ECU temporarily keeps the actuator in a state where the initial drive control is completed. In the case where the P-ECU receives the IG signal in the period from completion of the initial drive control to the time when a predetermined time T2 has elapsed since completion of the initial drive control, the P-ECU executes P wall press control when the P-ECU receives the IG signal.Type: GrantFiled: June 3, 2009Date of Patent: April 4, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiko Tsutsumi, Ichiro Kitaori, Koki Ueno, Keisuke Sekiya, Toshinari Suzuki
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Patent number: 9037362Abstract: Disclosed is a shift range switching apparatus of an automatic transmission which can improve the durability over the conventional shift range switching apparatus. An ECU is operative to rotate an actuator in a predetermined direction (Step S2) in the state of the automatic transmission switched to a predetermined shift range (Step S1), and thereafter the actuator is deenergized (Step S3). The reference position of the actuator corresponding to the predetermined shift range is detected (Step S5) in accordance with the fluctuation of the count value counted by an encoder when the actuator is deenergized (Step S4).Type: GrantFiled: April 15, 2010Date of Patent: May 19, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keisuke Sekiya, Koki Ueno, Mitsuaki Ishimaru
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Patent number: 8814752Abstract: It is provided a shift control device for a vehicle having a parking lock device driven by an actuator to selectively switch switching positions between a lock position and an unlock position, wherein when a run-enable operation is made by a driver and a non-running state is switched to a running state, shift position recognizing control is executed for recognizing an initial switching position appearing at the beginning when the running state is established, by driving the actuator in response to switching position information indicative of the switching position on a stage before the running state is established, wherein: the non-running state is configured to be switched to the running state prior to the execution of the run-enable operation; and updating of the switching position information, stored in the switching position information storage device, is permitted to be executed subjected to the switching position recognizing control being executed.Type: GrantFiled: June 21, 2012Date of Patent: August 26, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Ichiro Kitaori, Takahiko Tsutsumi, Osamu Kanai, Koki Ueno, Keisuke Sekiya, Toshinari Suzuki
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Patent number: 8770369Abstract: It is provided a vehicle shift control device electrically switching a shift position between a parking position and a non-parking position, the vehicle being capable of switching a vehicle state among a first state, a second state and a third state, when an operation for switching the vehicle state is performed in the first state, if a vehicle speed is a predetermined speed or less, switching is executed to the parking position and, after completion of the switching, the vehicle state is switched to the third state, whereas when plural-times of the operations are performed successively during the vehicle running, the vehicle state is compulsorily switched to the second state, and when at least one operation of the plural-times of the operations is performed if the vehicle speed is the predetermined speed or less, switching to the parking position is executed prior to switching to the second state.Type: GrantFiled: May 11, 2010Date of Patent: July 8, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ueno, Keisuke Sekiya, Mitsuaki Ishimaru
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Patent number: 8734295Abstract: A vehicular shift control apparatus for a vehicle provided with a parking lock device selectively switched to a locking position in which rotation of wheels of the vehicle is prevented and a non-locking position in which the rotation of the wheels is not prevented, by an operation of an electrically operated actuator, the vehicular shift control apparatus being configured to perform a failure diagnosis to determine whether the actuator is operable or not, the vehicular shift control apparatus includes: the vehicular shift control apparatus permits the operation of the actuator if a supply voltage to the actuator is raised from a value lower than a predetermined threshold supply voltage value to a value not lower than the threshold supply voltage value after a determination that the actuator is inoperable is obtained in the failure diagnosis.Type: GrantFiled: August 14, 2012Date of Patent: May 27, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Osamu Kanai, Takahiko Tsutsumi, Ichiro Kitaori, Toshinari Suzuki, Hiroatsu Endo, Koki Ueno, Keisuke Sekiya
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Publication number: 20130072350Abstract: It is provided a vehicle shift control device electrically switching a shift position between a parking position and a non-parking position, the vehicle being capable of switching a vehicle state among a first state, a second state and a third state, when an operation for switching the vehicle state is performed in the first state, if a vehicle speed is a predetermined speed or less, switching is executed to the parking position and, after completion of the switching, the vehicle state is switched to the third state, whereas when plural-times of the operations are performed successively during the vehicle running, the vehicle state is compulsorily switched to the second state, and when at least one operation of the plural-times of the operations is performed if the vehicle speed is the predetermined speed or less, switching to the parking position is executed prior to switching to the second state.Type: ApplicationFiled: May 11, 2010Publication date: March 21, 2013Inventors: Koki Ueno, Keisuke Sekiya, Mitsuaki Ishimaru
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Publication number: 20130024079Abstract: Disclosed is a shift range switching apparatus of an automatic transmission which can improve the durability over the conventional shift range switching apparatus. An ECU is operative to rotate an actuator in a predetermined direction (Step S2) in the state of the automatic transmission switched to a predetermined shift range (Step S1), and thereafter the actuator is deenergized (Step S3). The reference position of the actuator corresponding to the predetermined shift range is detected (Step S5) in accordance with the fluctuation of the count value counted by an encoder when the actuator is deenergized (Step S4).Type: ApplicationFiled: April 15, 2010Publication date: January 24, 2013Inventors: Keisuke Sekiya, Koki Ueno, Mitsuaki Ishimaru
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Publication number: 20120309590Abstract: A vehicular shift control apparatus for a vehicle provided with a parking lock device selectively switched to a locking position in which rotation of wheels of the vehicle is prevented and a non-locking position in which the rotation of the wheels is not prevented, by an operation of an electrically operated actuator, the vehicular shift control apparatus being configured to perform a failure diagnosis to determine whether the actuator is operable or not, the vehicular shift control apparatus includes: the vehicular shift control apparatus permits the operation of the actuator if a supply voltage to the actuator is raised from a value lower than a predetermined threshold supply voltage value to a value not lower than the threshold supply voltage value after a determination that the actuator is inoperable is obtained in the failure diagnosis.Type: ApplicationFiled: August 14, 2012Publication date: December 6, 2012Inventors: Osamu KANAI, Takahiko Tsutsumi, Ichiro Kitaori, Toshinari Suzuki, Hiroatsu Endo, Koki Ueno, Keisuke Sekiya
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Publication number: 20120305360Abstract: It is provided a shift control device for a vehicle having a parking lock device driven by an actuator to selectively switch switching positions between a lock position and an unlock position, wherein when a run-enable operation is made by a driver and a non-running state is switched to a running state, shift position recognizing control is executed for recognizing an initial switching position appearing at the beginning when the running state is established, by driving the actuator in response to switching position information indicative of the switching position on a stage before the running state is established, wherein: the non-running state is configured to be switched to the running state prior to the execution of the run-enable operation; and updating of the switching position information, stored in the switching position information storage device, is permitted to be executed subjected to the switching position recognizing control being executed.Type: ApplicationFiled: June 21, 2012Publication date: December 6, 2012Inventors: Ichiro KITAORI, Takahiko TSUTSUMI, Osamu KANAI, Koki UENO, Keisuke SEKIYA, Toshinari SUZUKI
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Publication number: 20120252628Abstract: When a P lock state is set on the basis of a predetermined request signal for setting the P lock state, a P position indicator lamp (62) is turned on or off on the basis of the status of power supplied to the vehicle (10). For example, when the P lock state is set, the P position indicator lamp (62) is turned off when the power status is an ALL-OFF status where a combination meter (56), or the like, is not turned on or is raised to an ACC-ON status; whereas, when the P lock state is set, the P position indicator lamp (62) is turned on when the power status is an IG-ON status, when the power status is changed from the IG-ON status during vehicle driving to the ACC-ON status, or within a predetermined period of time from when the power status is changed from the IG-ON status to the ALL-OFF status.Type: ApplicationFiled: November 5, 2010Publication date: October 4, 2012Inventors: Takahiko Tsutsumi, Keisuke Sekiya, Koki Ueno, Ichiro Kitaori, Toshinari Suzuki
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Publication number: 20120072083Abstract: When initial drive control for an actuator driving a shift switch mechanism is completed, a P-ECU determines whether an IG signal is received. In the case where the P-ECU has not received the IG signal at the time when the initial drive control is completed, the P-ECU temporarily keeps the actuator in a state where the initial drive control is completed. In the case where the P-ECU receives the IG signal in the period from completion of the initial drive control to the time when a predetermined time T2 has elapsed since completion of the initial drive control, the P-ECU executes P wall press control when the P-ECU receives the IG signal.Type: ApplicationFiled: June 3, 2009Publication date: March 22, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiko Tsutsumi, Ichiro Kitaori, Koki Ueno, Keisuke Sekiya, Toshinari Suzuki