Patents by Inventor Iwao Izumikawa
Iwao Izumikawa 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: 11912195Abstract: A getting-off support device of a vehicle continues to issue an alarm for a predetermined time when a physical body condition indicating that a physical body that obstructs getting-off of an occupant in the vehicle exists around the vehicle and a getting-off condition indicating that the occupant in the vehicle intends to get off the vehicle are satisfied, and prolongs the time of issuing the alarm when both of the physical body condition and the getting-off condition are further satisfied while the issuing of the alarm is continued.Type: GrantFiled: May 31, 2022Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki Saitoh, Iwao Izumikawa
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Patent number: 11813984Abstract: An alighting support device performs warning to notify a vehicle occupant of presence of a moving body having a possibility to come into contact with a right door or a left door of the vehicle. The alighting support device performs the warning when a warning condition is satisfied. When the right door or the left door is opened or is about to be opened while the moving body is moving in a right warning area set on the right side of the vehicle or a left warning area set on the left side of the vehicle, the alighting support device determines that the warning condition is satisfied. When the moving body enters the right warning area or the left warning area with the right door or the left door being open to a predetermined degree or more, the alighting support device determines that the warning condition is not satisfied.Type: GrantFiled: June 25, 2021Date of Patent: November 14, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji Takeuchi, Noriyuki Saitoh, Iwao Izumikawa, Junya Fukuta
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Patent number: 11798417Abstract: A driving assistance device includes an object detection unit, an acquisition unit acquiring a first value of a relative speed of an approaching object with respect to an own vehicle, a ghost determination unit, and an assistance determination unit. The ghost determination unit calculates a second value of the relative speed of the approaching object in accordance with a speed of the own vehicle and a value of the relative speed of a following object located between the own vehicle and the approaching object; calculates, as a speed difference, an absolute difference between the first value of the relative speed and the second value of the relative speed; calculates, as an azimuth difference, an absolute difference between an azimuth of the following object and an azimuth of the approaching object; and determines whether the approaching object is the ghost target based on the speed difference and the azimuth difference.Type: GrantFiled: June 24, 2021Date of Patent: October 24, 2023Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki Hori, Takayuki Kitamura, Koji Takeuchi, Iwao Izumikawa, Hiroki Shimazu
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Patent number: 11667284Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).Type: GrantFiled: August 5, 2021Date of Patent: June 6, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
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Patent number: 11639133Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.Type: GrantFiled: January 14, 2022Date of Patent: May 2, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
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Publication number: 20220410799Abstract: A getting-off support device of a vehicle continues to issue an alarm for a predetermined time when a physical body condition indicating that a physical body that obstructs getting-off of an occupant in the vehicle exists around the vehicle and a getting-off condition indicating that the occupant in the vehicle intends to get off the vehicle are satisfied, and prolongs the time of issuing the alarm when both of the physical body condition and the getting-off condition are further satisfied while the issuing of the alarm is continued.Type: ApplicationFiled: May 31, 2022Publication date: December 29, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki SAITOH, Iwao IZUMIKAWA
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Patent number: 11479173Abstract: In a driving assistance apparatus, an area setter is configured to set a warning area on at least one of a left rear side and a right rear side of a subject vehicle. A notifier is configured to provide a notification in response to an object detector detecting an object in the warning area. A determiner is configured to determine initiation and completion of a turn at an intersection during turning of the subject vehicle at the intersection. An area changer is configured to, in response to the determiner determining the initiation of the turn, reduce the warning area in a direction approaching the subject vehicle, and in response to the determiner determining the completion of the turn, expand the reduced warning area according to a traveling state of the subject vehicle after the completion of the turn.Type: GrantFiled: April 23, 2021Date of Patent: October 25, 2022Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naotsugu Shimizu, Koji Takeuchi, Iwao Izumikawa, Masaki Kawakami
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Publication number: 20220252719Abstract: An object detection apparatus is mounted to a vehicle and detects an object by a reflected wave of a probe wave. The object detection apparatus calculates a relative velocity of the object to the vehicle, estimates an azimuth of the object relative to the vehicle, and corrects the estimated azimuth. The object detection apparatus generates a velocity-azimuth curve that indicates a relationship between the relative velocity of the object and the azimuth of the object that is calculated based on a theoretical mounting angle of the object detection apparatus, supplies a weight to an azimuth error that is an error between the velocity-azimuth curve and the estimated azimuth, based on the estimated azimuth, and calculates a correction value of the estimated azimuth by calculating, as an actual mounting angle deviation of the object detection apparatus, a weighted average value of the azimuth error to which the weight is supplied.Type: ApplicationFiled: April 27, 2022Publication date: August 11, 2022Inventors: Masato ONOZAWA, Hiroki HORI, Koji TAKEUCHI, Iwao IZUMIKAWA, Hiroki SHIMAZU
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Publication number: 20220134950Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuto KUMASHIRO, Noriyuki SAITOH, Iwao IZUMIKAWA
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Patent number: 11299094Abstract: A vehicle exit assist apparatus includes: a right BSM ECU configured to issue a warning when a moving object approaching an own vehicle is detected; and a message uttering device including an amplifier and a speaker configured to operate by electric power supplied from an in-vehicle battery, and being configured to utter a sound message in accordance with control of the right BSM ECU. The right BSM ECU is configured to supply electric power to the message uttering device when a generator configured to charge the in-vehicle battery is operating, and bring the power supply to the message uttering device to an OFF state when a predetermined condition is satisfied after the generator is stopped.Type: GrantFiled: March 4, 2021Date of Patent: April 12, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Iwao Izumikawa, Koji Takeuchi, Masaho Ishida
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Publication number: 20220080886Abstract: An alighting support device performs warning to notify a vehicle occupant of presence of a moving body having a possibility to come into contact with a right door or a left door of the vehicle. The alighting support device performs the warning when a warning condition is satisfied. When the right door or the left door is opened or is about to be opened while the moving body is moving in a right warning area set on the right side of the vehicle or a left warning area set on the left side of the vehicle, the alighting support device determines that the warning condition is satisfied. When the moving body enters the right warning area or the left warning area with the right door or the left door being open to a predetermined degree or more, the alighting support device determines that the warning condition is not satisfied.Type: ApplicationFiled: June 25, 2021Publication date: March 17, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koji TAKEUCHI, Noriyuki SAITOH, Iwao IZUMIKAWA, Junya FUKUTA
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Patent number: 11273761Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.Type: GrantFiled: August 22, 2019Date of Patent: March 15, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
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Publication number: 20210362709Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).Type: ApplicationFiled: August 5, 2021Publication date: November 25, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
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Publication number: 20210327274Abstract: A driving assistance device includes an object detection unit, an acquisition unit acquiring a first value of a relative speed of an approaching object with respect to an own vehicle, a ghost determination unit, and an assistance determination unit. The ghost determination unit calculates a second value of the relative speed of the approaching object in accordance with a speed of the own vehicle and a value of the relative speed of a following object located between the own vehicle and the approaching object; calculates, as a speed difference, an absolute difference between the first value of the relative speed and the second value of the relative speed; calculates, as an azimuth difference, an absolute difference between an azimuth of the following object and an azimuth of the approaching object; and determines whether the approaching object is the ghost target based on the speed difference and the azimuth difference.Type: ApplicationFiled: June 24, 2021Publication date: October 21, 2021Inventors: Hiroki HORI, Takayuki KITAMURA, Koji TAKEUCHI, Iwao IZUMIKAWA, Hiroki SHIMAZU
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Publication number: 20210300243Abstract: In a driving assistance apparatus, an area setter is configured to set a warning area on at least one of a left rear side and a right rear side of a subject vehicle. A notifier is configured to provide a notification in response to an object detector detecting an object in the warning area. A determiner is configured to determine initiation and completion of a turn at an intersection during turning of the subject vehicle at the intersection. An area changer is configured to, in response to the determiner determining the initiation of the turn, reduce the warning area in a direction approaching the subject vehicle, and in response to the determiner determining the completion of the turn, expand the reduced warning area according to a traveling state of the subject vehicle after the completion of the turn.Type: ApplicationFiled: April 23, 2021Publication date: September 30, 2021Inventors: Naotsugu SHIMIZU, Koji TAKEUCHI, Iwao IZUMIKAWA, Masaki KAWAKAMI
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Publication number: 20210284065Abstract: A vehicle exit assist apparatus includes: a right BSM ECU configured to issue a warning when a moving object approaching an own vehicle is detected; and a message uttering device including an amplifier and a speaker configured to operate by electric power supplied from an in-vehicle battery, and being configured to utter a sound message in accordance with control of the right BSM ECU. The right BSM ECU is configured to supply electric power to the message uttering device when a generator configured to charge the in-vehicle battery is operating, and bring the power supply to the message uttering device to an OFF state when a predetermined condition is satisfied after the generator is stopped.Type: ApplicationFiled: March 4, 2021Publication date: September 16, 2021Inventors: Iwao Izumikawa, Koji Takeuchi, Masaho Ishida
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Patent number: 11091159Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).Type: GrantFiled: March 22, 2019Date of Patent: August 17, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
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Patent number: 10839692Abstract: A driving supporter includes: a departure-possibility-value obtainer that obtains a departure-possibility value; a relative positional relationship obtainer that detects another vehicle located diagonally at a rear of an own vehicle and obtain a relative positional relationship between them; a support executer that executes a lane-departure prevention support; and a support controller that controls the support executer to execute the lane-departure prevention support when the departure-possibility value is greater than or equal to a threshold value. The support controller includes a threshold-value determiner that determines the threshold value to a smaller value when the relative positional relationship is a set relationship than when the relative positional relationship is not the set relationship. The set relationship is a relationship in which there is a possibility of collision of the own vehicle with the other vehicle in an event of departure of the own vehicle from a lane.Type: GrantFiled: October 11, 2017Date of Patent: November 17, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro Kawaguchi, Iwao Izumikawa, Yuji Okuda, Kazuma Hashimoto
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Publication number: 20200148108Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.Type: ApplicationFiled: August 22, 2019Publication date: May 14, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
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Publication number: 20180158338Abstract: A driving supporter includes: a departure-possibility-value obtainer that obtains a departure-possibility value; a relative positional relationship obtainer that detects another vehicle located diagonally at a rear of an own vehicle and obtain a relative positional relationship between them; a support executer that executes a lane-departure prevention support; and a support controller that controls the support executer to execute the lane-departure prevention support when the departure-possibility value is greater than or equal to a threshold value. The support controller includes a threshold-value determiner that determines the threshold value to a smaller value when the relative positional relationship is a set relationship than when the relative positional relationship is not the set relationship. The set relationship is a relationship in which there is a possibility of collision of the own vehicle with the other vehicle in an event of departure of the own vehicle from a lane.Type: ApplicationFiled: October 11, 2017Publication date: June 7, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro KAWAGUCHI, Iwao IZUMIKAWA, Yuji OKUDA, Kazuma HASHIMOTO