Patents by Inventor Matsuei Ueda
Matsuei Ueda 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: 10947886Abstract: A catalyst state estimation apparatus includes a first sensor, a memory and a processor. The first sensor is configured to acquire information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine. The memory is configured to previously store a catalyst state estimation model that includes at least one mathematical model. The processor is configured to estimate a removal performance of the catalyst by applying the information about the catalyst acquired by the first sensor to the catalyst state estimation model.Type: GrantFiled: March 20, 2019Date of Patent: March 16, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato Ikedo, Matsuei Ueda, Makoto Nagaoka, Harufumi Muto, Kohei Mori, Hitoshi Hosaki, Atsushi Nagai, Satoshi Takamoto
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Publication number: 20190292970Abstract: A catalyst state estimation apparatus includes a first sensor, a memory and a processor. The first sensor is configured to acquire information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine. The memory is configured to previously store a catalyst state estimation model that includes at least one mathematical model. The processor is configured to estimate a removal performance of the catalyst by applying the information about the catalyst acquired by the first sensor to the catalyst state estimation model.Type: ApplicationFiled: March 20, 2019Publication date: September 26, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takato IKEDO, Matsuei Ueda, Makoto Nagaoka, Harufumi Muto, Kohei Mori, Hitoshi Hosaki, Atsushi Nagai, Satoshi Takamoto
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Publication number: 20180266344Abstract: An internal combustion engine is provided, in which a quantity of NOx emission can be reduced without using any special components even when a NOx reduction catalyst has an elevated temperature due to high-load operation. The internal combustion engine includes an engine, a three-way catalyst and a NOx reduction catalyst for purifying exhaust gas emitted from the engine, a temperature sensor for acquiring the temperature of the NOx reduction catalyst, a rotation speed sensor for acquiring an engine rotation speed, an injection controller for controlling a fuel injection quantity in the engine, and a combustion switching controller for switching a combustion mode of the engine between lean and stoichiometric combustion modes based on the NOx reduction catalyst temperature, the engine rotation speed, and the fuel injection quantity acquired from the fuel injection controller.Type: ApplicationFiled: March 15, 2018Publication date: September 20, 2018Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Ryuta MORIYASU, Kazuhisa INAGAKI, Matsuei UEDA, Makoto NAGAOKA, Taro IKEDA
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Patent number: 9297287Abstract: An exhaust gas control apparatus includes a control device controlling a urea addition valve for adding urea from an upstream side of a NOx reduction catalyst. The control device obtains an ammonia adsorption amount distribution through the NOx reduction catalyst. When an ammonia adsorption amount in a predetermined part on a downstream side equals or exceeds a predetermined threshold, the control device controls the urea addition valve to stop the urea supply or reduce the amount thereof. The urea addition valve is controlled based on an adsorption amount distribution obtained from a model on which the catalyst is divided into cells such that an ammonia adsorption amount in a first cell positioned furthest upstream equals or exceeds a predetermined threshold close to a saturation adsorption amount and an ammonia adsorption amount in a second cell positioned downstream of the first cell reaches a predetermined target value smaller than the threshold.Type: GrantFiled: September 21, 2011Date of Patent: March 29, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Shinya Hirota, Shunsuke Toshioka, Akira Mikami, Koichiro Fukuda, Sakutaro Hoshi, Takashi Endo, Ryoichi Hibino, Matsuei Ueda, Akihiko Asano, Takafumi Yamauchi, Akira Shichi, Makoto Koike, Masatoshi Maruyama, Masakazu Sakata
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Publication number: 20130247543Abstract: An exhaust gas control apparatus includes a control device controlling a urea addition valve for adding urea from an upstream side of a NOx reduction catalyst. The control device obtains an ammonia adsorption amount distribution through the NOx reduction catalyst. When an ammonia adsorption amount in a predetermined part on a downstream side equals or exceeds a predetermined threshold, the control device controls the urea addition valve to stop the urea supply or reduce the amount thereof. The urea addition valve is controlled based on an adsorption amount distribution obtained from a model on which the catalyst is divided into cells such that an ammonia adsorption amount in a first cell positioned furthest upstream equals or exceeds a predetermined threshold close to a saturation adsorption amount and an ammonia adsorption amount in a second cell positioned downstream of the first cell reaches a predetermined target value smaller than the threshold.Type: ApplicationFiled: September 21, 2011Publication date: September 26, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, DENSO CORPORATIONInventors: Shinya Hirota, Shunsuke Toshioka, Akira Mikami, Koichiro Fukuda, Sakutaro Hoshi, Takashi Endo, Ryoichi Hibino, Matsuei Ueda, Akihiko Asano, Takafumi Yamauchi, Akira Shichi, Makoto Koike, Masatoshi Maruyama, Masakazu Sakata
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Patent number: 8353196Abstract: In a gas-mixture-nonuniformity acquisition apparatus for an internal combustion engine, the nonuniformity of fuel concentration within a gas mixture is acquired under the assumption that, in a process in which a cylinder interior gas taken into a combustion chamber of the engine and fuel injected into the combustion chamber mix together to form a gas mixture, a collision reaction repeatedly takes place within the gas mixture in such a manner that, due to collision of two gas volumes having different fuel mass ratios, respective portions of the two gas volumes mix together, and the mixed portions separate from the corresponding gas volumes and form a portion or the entirety of another gas volume having a fuel mass ratio different from those of the two gas volumes.Type: GrantFiled: September 24, 2008Date of Patent: January 15, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taku Ibuki, Shigeki Nakayama, Kazuhisa Inagaki, Matsuei Ueda
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Publication number: 20100071662Abstract: In a gas-mixture-nonuniformity acquisition apparatus for an internal combustion engine, the nonuniformity of fuel concentration within a gas mixture is acquired under the assumption that, in a process in which a cylinder interior gas taken into a combustion chamber of the engine and fuel injected into the combustion chamber mix together to form a gas mixture, a collision reaction repeatedly takes place within the gas mixture in such a manner that, due to collision of two gas volumes having different fuel mass ratios, respective portions of the two gas volumes mix together, and the mixed portions separate from the corresponding gas volumes and form a portion or the entirety of another gas volume having a fuel mass ratio different from those of the two gas volumes.Type: ApplicationFiled: September 24, 2008Publication date: March 25, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taku Ibuki, Shigeki Nakayama, Kazuhisa Inagaki, Matsuei Ueda
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Patent number: 7337766Abstract: A gas-mixture-ignition-time estimation apparatus for an internal combustion engine estimates the temperature of a premixed gas mixture for PCCI combustion (i.e., cylinder interior temperature Tg), while relating it to the angle CA, on the basis of a state quantity of the cylinder interior gas at the time of start of compression (CAin) (heat energy of the cylinder interior gas at the time of start of compression), the amount of a change in the state quantity of the cylinder interior gas attributable to compression in a compression stroke (minute piston work), and the heat generation quantity of a cool flame generated in PCCI combustion prior to autoignition (hot flame) (cool flame heat generation quantity Aqlto). A time when the cylinder interior temperature Tg reaches a predetermined autoignition start temperature Tig is estimated as an autoignition start time (Caig) of the premixed gas mixture related to PCCI combustion.Type: GrantFiled: March 24, 2005Date of Patent: March 4, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeki Nakayama, Koji Kitano, Taro Aoyama, Ryo Hasegawa, Takashi Koyama, Kazuhisa Inagaki, Yoshifumi Wakisaka, Matsuei Ueda, Kiyomi Nakakita
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Publication number: 20070169748Abstract: A gas-mixture-ignition-time estimation apparatus for an internal combustion engine estimates the temperature of a premixed gas mixture for PCCI combustion (i.e., cylinder interior temperature Tg), while relating it to the angle CA, on the basis of a state quantity of the cylinder interior gas at the time of start of compression (CAin) (heat energy of the cylinder interior gas at the time of start of compression), the amount of a change in the state quantity of the cylinder interior gas attributable to compression in a compression stroke (minute piston work), and the heat generation quantity of a cool flame generated in PCCI combustion prior to autoignition (hot flame) (cool flame heat generation quantity Aqlto). A time when the cylinder interior temperature Tg reaches a predetermined autoignition start temperature Tig is estimated as an autoignition start time (Caig) of the premixed gas mixture related to PCCI combustion.Type: ApplicationFiled: March 24, 2005Publication date: July 26, 2007Applicant: Toyota Jidosha Kabushiki KaishaInventors: Shigeki Nakayama, Koji Kitano, Taro Aoyarna, Ryo Hasegawa, Takashi Koyama, Kazuhisa Inagaki, Yoshifumi Wakisaka, Matsuei Ueda, Kiyomi Nakakita
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Patent number: 5291748Abstract: An air condition control apparatus includes: a thermal sensation estimating device for estimating an actual thermal sensation on the basis of the history of a thermal sensation information in a predetermined period output from an indirect thermal sensation information detecting device for detecting information relating to a thermal sensation in the vicinity of a human in a room; a control pattern storage device for storing a predetermined thermal sensation control pattern for achieving a target thermal sensation; a control value determining device for determining control values of air to be supplied into the room so that the thermal sensation output from the thermal sensation estimating device coincides with the stored thermal sensation control pattern; an air condition control device for controlling the temperature of the air to be supplied into the room, on the basis of the control value output from the control value determining device; and an air blower for supplying the temperature-controlled air into theType: GrantFiled: October 16, 1992Date of Patent: March 8, 1994Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventor: Matsuei Ueda
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Patent number: 5145112Abstract: An air conditioner includes: a skin temperature sensor for collecting information about the temperature sensation of a person inside a room or compartment; a temperature sensation-estimating computer for estimating the temperature sensation from the hysteresis of the information provided by the skin temperature sensor within a given period; a control pattern storage computer in which a predetermined control pattern for reaching a desired temperature sensation is stored; a correction amount-determining computer for determining amounts of corrections of the flow rate and the temperature of air blown into the room or compartment in such a way that the control pattern stored in the storage computer agrees with the temperature sensation estimated by the temperature sensation-estimating computer; a conditioning air temperature control computer for controlling the temperature of the air according to the output signal from the correction amount-determining computer; and a blower for controlling the flow rate of the aType: GrantFiled: October 7, 1991Date of Patent: September 8, 1992Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventor: Matsuei Ueda
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Patent number: 5093792Abstract: An apparatus for predicting and discriminating whether or not misfire, knocking and the like will occur from the cylinder pressure before the occurrence of the misfire, the knocking and the like by the use of a three layered neural network. The cylinder pressure signal detected by a cylinder pressure sensor is sampled and input to each of the elements of the input layer. The signal then is modulated corresponding to the strength (weight) of the connection between each of the elements, and transmitted to the hidden and output layers. The magnitude of signal from the elements of the output layer represents the prediction and discrimination results. The weight is learned and determined by a back propagation method.Type: GrantFiled: May 31, 1989Date of Patent: March 3, 1992Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Masahiro Taki, Matsuei Ueda