公开(公告)号：US20240043011A1

公开(公告)日：2024-02-08

申请号：US18351493

申请日：2023-07-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA ,  Ryosuke KAYANUMA

IPC: B60W30/194 ,  B60W20/15 ,  B60W10/06

CPC classification number: B60W30/194 ,  B60W20/15 ,  B60W10/06 ,  B60W10/08

Abstract: A controller for a hybrid electric vehicle executes an intake gas flow rate adjusting process, a motor-driven actuation process, a fuel vapor adjusting process, and a starting process. The intake gas flow rate adjusting process includes adjusting an opening degree of a throttle valve to an open state. The motor-driven actuation process includes controlling a motor-generator to perform motor-driven actuation of the internal combustion engine. The fuel vapor adjusting process includes adjusting an opening degree of a fuel vapor adjusting valve during the motor-driven actuation process, thereby allowing fuel vapor to flow through a fuel vapor passage. The starting process includes starting the internal combustion engine by controlling an ignition device to perform ignition during the motor-driven actuation process.

公开(公告)号：US20200232108A1

公开(公告)日：2020-07-23

申请号：US16749595

申请日：2020-01-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA ,  Keishi TAKADA ,  Yasumasa NOTAKE

IPC: C25B15/08 ,  C25B9/08 ,  C25B1/00

Abstract: An electrochemical reactor includes a plurality of plate-shaped members and a plurality of passages defined by the plurality of plate-shaped members. Each plate-shaped member includes a cell including an ion conducting solid electrolyte layer, an anode layer arranged on a surface of the solid electrolyte layer, and a cathode layer arranged on a surface of the solid electrolyte layer at an opposite side to the surface at which the anode layer is arranged. The plate-shaped members are configured so that, for all of the passages, both of an anode layer of at least one plate-shaped member among the plurality of plate-shaped members defining the passages and a cathode layer of at least one other plate-shaped member among the plurality of plate-shaped members defining the passages face the passages.

公开(公告)号：US20180163591A1

公开(公告)日：2018-06-14

申请号：US15827242

申请日：2017-11-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA ,  Yoshihisa TSUKAMOTO

IPC: F01N3/20

CPC classification number: F01N3/2013 ,  F01N3/0814 ,  F01N3/2066 ,  F01N9/00 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2240/16 ,  F01N2260/04 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2560/06 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1621 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust gas control apparatus for an internal combustion engine includes: an SCR catalyst including transition metal ions for reducing NOX in exhaust gas with NH3 as a reducing agent; detection means for detecting temperature of the SCR catalyst; and a heater configured to heat the SCR catalyst. When NOX does not flow into the SCR catalyst, and the temperature detected by the detection means is below a first temperature that is a temperature causing exhibition of valence recovery of transition metal ions, the heater is controlled such that the SCR catalyst is heated up to a first temperature or above and that the SCR catalyst is maintained at or above the first temperature for a prescribed period so as to achieve valence recovery of the transition metal ions put in a deteriorated state.

公开(公告)号：US20200224569A1

公开(公告)日：2020-07-16

申请号：US16741790

申请日：2020-01-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yasumasa NOTAKE ,  Keishi TAKADA ,  Tetsuya SAKUMA

IPC: F01N3/08 ,  F01N9/00 ,  F01N3/28 ,  B01D53/32 ,  B01D53/94 ,  F01N13/00 ,  F01N3/10

Abstract: An exhaust purification system includes an electrochemical reactor provided in an engine exhaust passage; a bypass passage bypassing the electrochemical reactor; a flow control valve controlling an amount of exhaust gas, discharged from an engine body, flowing into the electrochemical reactor and the bypass passage; and a control device controlling the flow control valve. The electrochemical reactor includes a holding material holding NOX or HC and is configured so as to purify NOX or HC held at the holding material if encrgized. The control device controls the flow control valve so as to control the amount of exhaust gas flowing into the electrochemical reactor so that a temperature of the electrochemical reactor is maintained at less than a desorption start temperature where NOX or HC starts to be desorbed from the holding material.

公开(公告)号：US20200080453A1

公开(公告)日：2020-03-12

申请号：US16529274

申请日：2019-08-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA

IPC: F01N3/20 ,  B01D53/86 ,  B01D53/94

Abstract: An exhaust after treatment system provided in an exhaust passage of an internal combustion engine, comprising an adsorption layer having the function of adsorbing hydrocarbons in the exhaust, a catalyst layer arranged at the same position as the adsorption layer in the direction of flow of exhaust or at the downstream side from the adsorption layer and having an oxidation function of oxidizing the hydrocarbons, and a thermal energy generator generating thermal energy, in the thermal energy generated by the thermal energy generator, the thermal energy supplied to the catalyst layer being made larger than the thermal energy supplied to the adsorption layer.

公开(公告)号：US20230399967A1

公开(公告)日：2023-12-14

申请号：US18125191

申请日：2023-03-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryosuke KAYANUMA ,  Tetsuya SAKUMA

IPC: F01N3/20 ,  B01D53/94 ,  F01N9/00 ,  B01D53/32 ,  F01N11/00

CPC classification number: F01N3/20 ,  B01D53/9495 ,  F01N9/00 ,  B01D53/326 ,  F01N11/007 ,  B01D53/9454 ,  F01N2550/02 ,  B01D2255/908 ,  B01D2257/502 ,  B01D2258/012 ,  B01D2257/702 ,  F01N2900/1402 ,  B01D2257/404

Abstract: An exhaust gas control apparatus for an internal combustion engine for purifying exhaust gas discharged from an engine main body includes an exhaust gas control catalyst disposed in an exhaust gas passage of an internal combustion engine and capable of purifying a target component in the exhaust gas, an electrochemical reactor disposed in the exhaust gas passage on a downstream side in an exhaust flow direction of the exhaust gas control catalyst, and a control device for controlling energization of the electrochemical reactor. The electrochemical reactor is configured to purify the target component in the exhaust gas when energized. The control device controls the energization of the electrochemical reactor on the basis of an active parameter indicating an active state of the exhaust gas control catalyst and an air-fuel ratio parameter related to an air-fuel ratio of the inflow exhaust gas flowing into the electrochemical reactor.

公开(公告)号：US20190284980A1

公开(公告)日：2019-09-19

申请号：US16355632

申请日：2019-03-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA ,  Keishi TAKADA ,  Hiromasa NISHIOKA

IPC: F01N11/00 ,  F01N3/20

Abstract: The NOx catalyst is irradiated with an electromagnetic wave, a resonance frequency and a ratio of a reception power to an oscillation power at the time of the irradiation are detected, and an upper limit value of a change amount of the resonance frequency or an upper limit value of a change amount of the ratio at which the NOx catalyst is diagnosed to be abnormal is determined from a change amount of the resonance frequency and a change amount of the ratio until water is adsorbed on all acid sites included in the NOx catalyst, and a change amount of the resonance frequency and a change amount of the ratio until ammonia is adsorbed on all acid sites included in the NOx catalyst, when it is supposed that the NOx catalyst is in a state of being on the borderline between normal and abnormal.

公开(公告)号：US20190249586A1

公开(公告)日：2019-08-15

申请号：US16274364

申请日：2019-02-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keishi TAKADA ,  Tetsuya SAKUMA ,  Hiromasa NISHIOKA

IPC: F01N11/00 ,  B01D53/94 ,  G07C5/08

CPC classification number: F01N11/00 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/208 ,  F01N9/00 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2560/12 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/1602 ,  F01N2900/1622 ,  F01N2900/1812 ,  G07C5/0808

Abstract: An abnormality diagnosis apparatus for an exhaust gas control apparatus. The abnormality diagnosis apparatus includes: an adsorption amount detector which detects an actual adsorption amount that is an amount of ammonia actually adsorbed in a catalyst; and an electronic control unit configured to: i) estimate an estimated adsorption amount that is an ammonia adsorption amount in the catalyst on an assumption that an ammonia supply apparatus is normal; and ii) execute an abnormality diagnosis in which the ammonia supply apparatus is diagnosed as being abnormal, in a case where the estimated adsorption amount is equal to or smaller than a predetermined adsorption amount and where a difference between the estimated adsorption amount and the actual adsorption amount is larger than a threshold.

公开(公告)号：US20200215482A1

公开(公告)日：2020-07-09

申请号：US16736064

申请日：2020-01-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tetsuya SAKUMA ,  Keishi TAKADA ,  Yasumasa NOTAKE

IPC: B01D53/32 ,  F01N3/20

Abstract: An exhaust purification system of an internal combustion engine is provided with an electrochemical reactor provided in an exhaust passage of the internal combustion engine, and a voltage control device controlling a voltage supplied to the electrochemical reactor. The electrochemical reactor is provided with an ion conducting solid electrolyte layer and an anode layer and cathode layer placed on the surface of the solid electrolyte layer. The voltage control device is configured to perform short-circuit detection control detecting short-circuiting between the anode layer and the cathode layer, and energizing control applying current between the anode layer and the cathode layer so to energize the short-circuited part when short-circuiting is detected.

公开(公告)号：US20200215481A1

公开(公告)日：2020-07-09

申请号：US16731147

申请日：2019-12-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keishi TAKADA ,  Tetsuya SAKUMA ,  Yasumasa NOTAKE

IPC: B01D53/32 ,  B01D53/92

Abstract: An electrochemical reactor is arranged inside an exhaust passage of an internal combustion engine and is provided with a plurality of groups of cells. Each group of cell has a plurality of cells, each cell has an ion conducting solid electrolyte layer, and an anode layer and cathode layer arranged on a surface of the solid electrolyte layer. Each group of cells is configured so that all of the exhaust gas flows into passages defined by cells configuring the group of cells and so that both of the anode layers and the cathode layers are exposed to each passage. The plurality of groups of cells are arranged aligned in a direction of flow of exhaust gas and different groups of cells are connected to a power source in parallel with each other.