Patents by Inventor Takashi Yuma
Takashi Yuma 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: 11952821Abstract: A control device is mounted on a vehicle including a door opening and closing mechanism for opening and closing a door of an entrance and exit where a passenger gets on and off, and a shift device for changing a driving range of a transmission. The driving range is input to the control device and the control device opens and closes the door by the door opening and closing mechanism. The control device permits opening of the door when the driving range is a parking range, and prohibits a change of the driving range of the shift device when the driving range is the parking range and the door is open.Type: GrantFiled: January 7, 2022Date of Patent: April 9, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoya Ishida, Kentaro Oya, Takashi Yuma, Chihiro Date
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Patent number: 11891014Abstract: A vehicle includes a controller. The controller is configured to perform authentication of a portable device by communication with the portable device when startup of a system of the vehicle is instructed, when the system is off, or when the startup of the system of the vehicle is instructed and the system is off. The controller is configured to perform the startup of the system of the vehicle when the startup of the system of the vehicle is instructed, under a condition that the authentication of the portable device is successful. The controller is configured to perform reauthentication of the portable device when predetermined movement of the vehicle is detected after the startup of the system of the vehicle, and perform theft prevention processing when the reauthentication of the portable device fails.Type: GrantFiled: February 2, 2021Date of Patent: February 6, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi Yuma, Atsushi Tabata, Koichi Okuda, Atsushi Kamada, Kazumi Shine
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Publication number: 20220268079Abstract: A control device is mounted on a vehicle including a door opening and closing mechanism for opening and closing a door of an entrance and exit where a passenger gets on and off, and a shift device for changing a driving range of a transmission. The driving range is input to the control device and the control device opens and closes the door by the door opening and closing mechanism. The control device permits opening of the door when the driving range is a parking range, and prohibits a change of the driving range of the shift device when the driving range is the parking range and the door is open.Type: ApplicationFiled: January 7, 2022Publication date: August 25, 2022Inventors: Naoya Ishida, Kentaro Oya, Takashi Yuma, Chihiro Date
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Publication number: 20210245703Abstract: A vehicle includes a controller. The controller is configured to perform authentication of a portable device by communication with the portable device when startup of a system of the vehicle is instructed, when the system is off, or when the startup of the system of the vehicle is instructed and the system is off. The controller is configured to perform the startup of the system of the vehicle when the startup of the system of the vehicle is instructed, under a condition that the authentication of the portable device is successful. The controller is configured to perform reauthentication of the portable device when predetermined movement of the vehicle is detected after the startup of the system of the vehicle, and perform theft prevention processing when the reauthentication of the portable device fails.Type: ApplicationFiled: February 2, 2021Publication date: August 12, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi YUMA, Atsushi TABATA, Koichi OKUDA, Atsushi KAMADA, Kazumi SHINE
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Patent number: 10625604Abstract: A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.Type: GrantFiled: January 12, 2018Date of Patent: April 21, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi Yuma, Koki Ueno, Masato Tateno, Yusuke Nakade
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Patent number: 10378646Abstract: A shift range is selected based on a vehicle speed or acceleration of a vehicle and a shift range kept by a drive unit at the time when it is determined that there is a malfunction in shift sensors. Thus, it is possible to avoid a disabled self-propelled state resulting from a change into a neutral range through a fail-safe operation and keep limp home running.Type: GrantFiled: October 26, 2017Date of Patent: August 13, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi Yuma, Koki Ueno, Masato Tateno, Yusuke Nakade
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Publication number: 20180201126Abstract: A vehicle shift control device comprises: a shift position deciding portion deciding a shift position of a shift operating device based on a sensor signal output according to an operation of the shift operating device; and a drive power output command portion selecting a shift range based on a shift position determination signal output from the shift position deciding portion to cause a vehicle to run, when a communication abnormality has occurred so that the shift position determination signal is not transmitted from the shift position deciding portion to the drive power output command portion, the vehicle shift control device selecting a shift range maintained at the time of occurrence of the communication abnormality of the shift position determination signal if a vehicle speed is equal to or greater than a predetermined value, and selecting a neutral range if the vehicle speed is less than the predetermined value.Type: ApplicationFiled: January 12, 2018Publication date: July 19, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi YUMA, Koki UENO, Masato TATENO, Yusuke NAKADE
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Publication number: 20180172144Abstract: A shift range is selected based on a vehicle speed or acceleration of a vehicle and a shift range kept by a drive unit at the time when it is determined that there is a malfunction in shift sensors. Thus, it is possible to avoid a disabled self-propelled state resulting from a change into a neutral range through a fail-safe operation and keep limp home running.Type: ApplicationFiled: October 26, 2017Publication date: June 21, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi YUMA, Koki UENO, Masato TATENO, Yusuke NAKADE
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Patent number: 8914185Abstract: An ECU is connected to a multi-system shift sensor detecting a shift lever position in a shift direction associated with detection of the R position, and to a multi-system select sensor detecting a shift lever position in a select direction not associated with detection of the R position. When only one or more, but not all, of sensors in the select sensor are abnormal, the ECU controls the shift range according to the shift position detected based on the remaining proper sensor. When only one or more of sensors in the shift sensor are abnormal, the ECU maintains the current range until an operation of a shift lever is detected, and switches the shift range to the N range at the point of time of detecting an operation of the shift lever.Type: GrantFiled: February 27, 2009Date of Patent: December 16, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ueno, Ichiro Kitaori, Takahiko Tsutsumi, Hiroatsu Endo, Takashi Yuma, Masayuki Matsui
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Patent number: 8718885Abstract: A shift control device for vehicle is provided capable of controlling an actuator to switch shift ranges of a transmission and switching establishment of operating states between a first operating state enabling a detection of a reference position for controlling the actuator during an initial operation of the actuator, and a second operating state disabling the detection of the reference position, besides the first and second operating states, a third operating state being able to be established with an inability to detect the reference position but with an ability to detect vehicle information; and when the second operating state is switched to the first operating state with the third operating state continuously remained, after switching from the first operating state to the second operating state, the reference position being detected again.Type: GrantFiled: March 8, 2010Date of Patent: May 6, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ueno, Takahiko Tsutsumi, Takashi Yuma
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Patent number: 8676460Abstract: A shift control device is provided for a vehicle of shift-by-wire type having shift operation detecting means electrically detecting a shift operation of a driver, range switching means switching a shift range in response to the shift operation of the driver, failure detecting means detecting a failure in a shift operation detection executed by the shift operation detecting means, and vehicle state detecting means detecting a vehicle state upon detection of the failure in the shift operation detection, the range switching means being switched to a fail-safe mode, when the shift operation detection is recovered from a failed state to a normal state and the range switching means is switched from the fail-safe mode to a normal control mode, a recovery condition for determining switching of the fail-safe mode to the normal control mode being altered depending on the vehicle state.Type: GrantFiled: March 8, 2010Date of Patent: March 18, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Koki Ueno, Takahiko Tsutsumi, Ichiro Kitaori, Hiroatsu Endo, Takashi Yuma, Masayuki Matsui
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Patent number: 8423232Abstract: A vehicle control device includes: an abnormality detecting portion that detects an abnormality in at least part of a shift position detection portion detecting a shift position; a shift-operatoin determining portion that determines, based on a detection signal from the shift position detection portion, whether a shift operating device is shift-operated or not by a driver, and a vehicle movement prevention control portion that, in a case where a movement of a vehicle is prevented by an actuator and in a case where the abnormality in part of the shift position detection portion is detected by the abnormality detecting portion, permits the actuator to release the prevention of the movement of the vehicle if it is determined by the shift-operation determining portion that the shift operating device is shift-operated by the driver.Type: GrantFiled: April 20, 2009Date of Patent: April 16, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takahiko Tsutsumi, Takashi Inoue, Ichiro Kitaori, Kazuo Kawaguchi, Takashi Yuma
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Publication number: 20120022756Abstract: A shift control device is provided for a vehicle of shift-by-wire type having shift operation detecting means electrically detecting a shift operation of a driver, range switching means switching a shift range in response to the shift operation of the driver, failure detecting means detecting a failure in a shift operation detection executed by the shift operation detecting means, and vehicle state detecting means detecting a vehicle state upon detection of the failure in the shift operation detection, the range switching means being switched to a fail-safe mode, when the shift operation detection is recovered from a failed state to a normal state and the range switching means is switched from the fail-safe mode to a normal control mode, a recovery condition for determining switching of the fail-safe mode to the normal control mode being altered depending on the vehicle state.Type: ApplicationFiled: March 8, 2010Publication date: January 26, 2012Inventors: Koki Ueno, Takahiko Tsutsumi, Ichiro Kitaori, Hiroatsu Endo, Takashi Yuma, Masayuki Matsui
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Publication number: 20120010793Abstract: A shift control device for vehicle is provided in which a first operating state (running state of a P-ECU 26, and a TURN-ON of a vehicle power supply), enabling detection of a reference position to control a P-lock drive motor 54 during an initial operation of an actuator during an initial operation of the P-lock drive motor 54, is switched to a second operating state (halt state of the P-ECU 26, and a TURN-OFF of the vehicle power supply) disabling the detection of the reference position. Subsequently, when the second operating state is switched to the first operating state with a third operating state (wake state of the P-ECU 26) with an inability to detect the reference position but with an ability to detect vehicle information continuously remained, upon which the reference position is detected again.Type: ApplicationFiled: March 8, 2010Publication date: January 12, 2012Inventors: Koki Ueno, Takahiko Tsutsumi, Takashi Yuma
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Publication number: 20110202231Abstract: An ECU is connected to a multi-system shift sensor detecting a shift lever position in a shift direction associated with detection of the R position, and to a multi-system select sensor detecting a shift lever position in a select direction not associated with detection of the R position. When only one or more, but not all, of sensors in the select sensor are abnormal, the ECU controls the shift range according to the shift position detected based on the remaining proper sensor. When only one or more of sensors in the shift sensor are abnormal, the ECU maintains the current range until an operation of a shift lever is detected, and switches the shift range to the N range at the point of time of detecting an operation of the shift lever.Type: ApplicationFiled: February 27, 2009Publication date: August 18, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koki Ueno, Ichiro Kitaori, Takahiko Tsutsumi, Hiroatsu Endo, Takashi Yuma, Masayuki Matsui
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Publication number: 20110098881Abstract: A vehicle control device having an actuator operative to prevent a movement of a vehicle and a shift operating device including a shift position detection means detecting a shift position, the vehicle control device outputting, when the shift operating device is shift-operated to a predetermined shift position to release prevention of the movement of the vehicle, a control signal for permitting the actuator to release the prevention of the movement of the vehicle, the vehicle control device includes: an abnormality detecting means that detects an abnormality in at least part of the shift position detection means; a shift operation determining means that determines, based on a detection signal from the shift position detection means, whether the shift operating device is shift-operated or not by a driver, and a vehicle movement prevention control means that, in a case where the movement of the vehicle is prevented by the actuator and in a case where the abnormality in part of the shift position detection meansType: ApplicationFiled: April 20, 2009Publication date: April 28, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiko Tsutsumi, Takashi Inoue, Ichiro Kitaori, Kazuo Kawaguchi, Takashi Yuma