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公开(公告)号：US20170102354A1
公开(公告)日：2017-04-13
申请号：US15286964
申请日：2016-10-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keiichiro AOKI , Koji IDE , Yoshihisa SERIZAWA
IPC: G01N27/407 , G01N27/406
CPC classification number: G01N27/4074 , G01N27/4067 , G01N27/4071 , G01N27/417 , G01N27/419 , G01N33/0037 , G01N33/0054 , Y02A50/245 , Y02A50/246
Abstract: A multiple gas detection device comprises: a first cell part provided with a first electrochemical cell; a second cell part provided with a second electrochemical cell; a third cell part provided with a third electrochemical cell; an inlet diffusion controller controlling diffusion of measured gas; and a measured gas chamber into which the measured gas flows through the inlet diffusion controller. The first cell part is configured to selectively detect a concentration of NOx or ammonia contained in measured gas in the measured gas chamber. The second cell part is configured to discharge oxygen contained in measured gas in the measured gas chamber and convert NO2 and ammonia contained in measured gas in the measured gas chamber to NO. The third cell part is configured to detect a concentration of NO contained in measured gas in the measured gas chamber.
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公开(公告)号：US20240046780A1
公开(公告)日：2024-02-08
申请号：US18228776
申请日：2023-08-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroshi OYAGI , Masaki ITO , Yuki TAKAHASHI , Koji IDE , Tomohiro KANEKO , Yoshihisa SHINODA , Shigeki NAKAYAMA
CPC classification number: G08G1/0125 , G06V20/582 , G01C21/3837 , G01C21/3815
Abstract: A control device includes a processor that acquires travel data of a target vehicle, determines whether the target vehicle obeys a traffic rule, and adjusts a usage form of the travel data in a case of determining that the target vehicle does not obey the traffic rule.
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公开(公告)号：US20170191438A1
公开(公告)日：2017-07-06
申请号：US15325221
申请日：2015-07-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Go HAYASHITA , Hidenori MORIYA , Koji IDE
CPC classification number: F02D41/2454 , F01N3/101 , F01N11/00 , F01N11/007 , F01N2550/00 , F01N2550/02 , F01N2900/1402 , F01N2900/1624 , F02D41/0295 , F02D41/1402 , F02D41/1441 , F02D41/1456 , F02D41/1495 , F02D41/2441 , F02D2041/1418 , F02D2200/0814 , Y02T10/22 , Y02T10/47
Abstract: Downstream side air-fuel ratio sensor signal based adaptive air-fuel ratio control. When the air-fuel ratio detected by the downstream side air-fuel ratio sensor is maintained lean unduly, a stuck learning control is performed to decrease a learning value to lower the air-fuel ratio. Adaptive learning value update control is performed based on the downstream side air-fuel ratio sensor signal to increase the learning value when an upstream air-fuel ratio deviates to the rich side and to decrease the learning value when the upstream air-fuel ratio deviates to the lean side. It is judged that the downstream side air-fuel ratio sensor is abnormal when a certain value or more of decrease of the learning value and a certain value or more of increase of the learning value are repeated.
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Patent Agency Ranking
公开(公告)号：US20160290961A1
公开(公告)日：2016-10-06
申请号：US15082032
申请日：2016-03-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keiichiro AOKI , Koji IDE , Go HAYASHITA , Toyoharu KANEKO , Tatsuhiro HASHIDA , Kazuhiro WAKAO
IPC: G01N27/417 , G01N27/407 , G01N27/406
CPC classification number: G01N27/4175 , F01N11/00 , F01N2550/00 , F01N2560/02 , F01N2560/025 , F01N2560/026 , F01N2560/027 , F01N2900/0416 , F02D41/1454 , F02D41/1495 , F02D41/22 , F02D41/222 , G01N27/4065 , G01N27/4067 , G01N27/407 , G01N27/4071 , G01N27/4074 , G01N27/419 , G01N33/0042 , Y02A50/248 , Y02T10/40 , Y02T10/47
Abstract: In a limited-current type gas sensor which detects oxygen-containing gas contained in an exhaust gas of an internal combustion engine, the decomposition current value of water (H2O) may be detected, and existence of an abnormality of output characteristics of the sensor may be diagnosed based on its deviation from a reference decomposition current value of water corresponding to the concentration of water contained in the exhaust gas. A NOx sensor and a SOx sensor can also diagnose remarkable and minute abnormalities of output characteristics. In addition, the reference decomposition current value of water may be acquired based on the concentration of water detected by a separate humidity sensor or the decomposition current value of oxygen detected by the limited-current type gas sensor. The reference decomposition current value of water may be corrected based on a decomposition current value of oxygen detected during a fuel cut.
Abstract translation: 在检测内燃机的废气中含有的含氧气体的有限流型气体传感器中，可以检测水（H 2 O）的分解电流值，并且传感器的输出特性异常的存在 基于其与对应于排气中所含的水的浓度的水的参考分解电流值的偏差进行诊断。 NOx传感器和SOx传感器还可以诊断输出特性的显着和微小异常。 此外，可以基于由单独的湿度传感器检测的水的浓度或由限流型气体传感器检测的氧的分解电流值来获取水的参考分解电流值。 可以基于在燃料切断期间检测到的氧的分解电流值来校正水的参考分解电流值。
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公开(公告)号：US20230410485A1
公开(公告)日：2023-12-21
申请号：US18203963
申请日：2023-05-31
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshihisa SHINODA , Shigeki NAKAYAMA , Koji IDE , Tomohiro KANEKO , Hiroshi OYAGI , Masaki ITO , Yuki TAKAHASHI
IPC: G06V10/776 , G06V40/10
CPC classification number: G06V10/776 , G06V40/10
Abstract: A machine learning device includes a processor which performs, when performing learning of a model with image data, the learning of the model while excluding the image data of an animal having a feature amount common with a feature amount of a human.
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公开(公告)号：US20170356378A1
公开(公告)日：2017-12-14
申请号：US15620013
申请日：2017-06-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Go HAYASHITA , Koji IDE , Yasushi ONO
Abstract: A control device of an exhaust sensor comprises a heater control part configured to set a target temperature of an electrochemical cell and control a heater so that a temperature of the electrochemical cell becomes the target temperature, and a judging part configured to judge whether a water repellency of a protective layer is falling when the heater control part sets the target temperature to a temperature of a lowest temperature at which a Leidenfrost phenomenon occurs at an outer surface of the protective layer or more. The heater control part is configured to rise the target temperature when the judging part judges that the water repellency of the protective layer is falling.
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公开(公告)号：US20170321588A1
公开(公告)日：2017-11-09
申请号：US15587390
申请日：2017-05-04
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Keiichiro AOKI , Koji IDE , Go HAYASHITA
CPC classification number: F01N11/007 , F01N2560/02 , F01N2560/20 , F01N2900/0602 , F01N2900/104 , G01M15/102
Abstract: A control device of an exhaust sensor comprises a battery voltage detection part detecting a voltage of a battery, and a heater control part setting a target temperature of an electrochemical cell and controlling the electric power supplied from the battery to a heater. The heater control part sets the target temperature to a first temperature after startup of the internal combustion engine until the voltage of the battery recovers to a predetermined voltage, and switches the target temperature from the first temperature to a second temperature when the voltage of the battery recovers to the predetermined voltage. The first temperature is a temperature lower than an operating temperature of the electrochemical cell and at least a lowest temperature at which a Leidenfrost phenomenon occurs at the protective layer. The second temperature is a temperature of the operating temperature or more.
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公开(公告)号：US20160115893A1
公开(公告)日：2016-04-28
申请号：US14921198
申请日：2015-10-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroshi MIYAMOTO , Toru KIDOKORO , Yasushi IWAZAKI , Kenji SUZUKI , Koji IDE
IPC: F02D41/14
CPC classification number: F02D41/1495 , F02D41/1441 , F02D41/1454 , F02D41/1494 , F02D41/222 , Y02T10/40
Abstract: An abnormality diagnosis system of limit current type air-fuel ratio sensors comprises a current detecting part and a sensor temperature control device. The abnormality diagnosis system uses the current detecting part to detect the output current of the air-fuel ratio sensor when the air-fuel ratio is made the rich air-fuel ratio in the state where temperature of the air-fuel ratio is made the first temperature and when the air-fuel ratio is made the rich air-fuel ratio in the state where the temperature of the air-fuel ratio is made a second temperature higher than the first temperature. It is judged that the air-fuel ratio sensor is abnormal if the output current when the temperature of the air-fuel ratio sensor is the first temperature is larger than the output current when it is the second temperature by a predetermined value or more.
Abstract translation: 限流型空燃比传感器的异常诊断系统包括电流检测部和传感器温度控制装置。 异常诊断系统使用电流检测部来检测空燃比传感器的输出电流，在空燃比为空燃比的状态下，使空燃比成为浓空燃比 在使空燃比的温度比第一温度高的状态下使空燃比为浓空燃比。 如果当空燃比传感器的温度为第一温度时的输出电流大于其第二温度的预定值以上时的输出电流，则判断空燃比传感器异常。
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