Toyota Jidosha Kabushiki Kaisha

Nippon Soken, Inc.

Kabushiki Kaisha Toyota Chuo Kenkyusho

Yoshihisa Shinoda

Kazuhiro Sugimoto

Koichi Hoshi

Hiroaki Katsumata

Keisuke Sano

Yuki Takahashi

Shigeki Nakayama

Tomohiro Kaneko

Masaki Ito

Koji Ide

Hiroshi Oyagi

Takashi Watanabe

Yuji Yamaguchi

Makoto Tomimatsu

Yusuke Nakayama

Ippei Fukutomi

Takayoshi Tanaka

Kazuhiro Fukumoto

Kenichirou Suzuki

Kayoko Takada

Yukihiro Takahashi

Takuya Ookubo

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.

Machine learning device and recording medium

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.

Control device, recording medium, and data generation method

An exhaust gas control system of an internal combustion engine includes an EGR device, a three-way catalyst, and an electronic control unit. The electronic control unit is configured to control the air-fuel ratio of the exhaust gas flowing into the three-way catalyst such that the air-fuel ratio when the electronic control unit executes EGR control during execution of fuel cut control and then executes the enrichment processing after the execution of the fuel cut control ends to be a higher air-fuel ratio in a range of the rich air-fuel ratio compared to the air-fuel ratio when the EGR control is not executed during the execution of the fuel cut control.

Exhaust gas control system of internal combustion engine and method of controlling exhaust gas control system of internal combustion engine

The present invention relates to a vehicular air cleaner. It is an object to provide a DOR system which can utilize a purifying function of an ozone purifying element containing an activated carbon for a long period of time. As shown in Aand Aof FIG., in the activated carbon at an initial state, an ozone purification rate is almost the same as the same wind velocity even when a temperature condition is different, even though the ozone purification rate is changed when the wind velocity is changed. After the endurance test, the ozone purification rate is increased even at the same wind velocity when the temperature becomes high as shown in Band Bof FIG.. Thus, the temperature condition difference affects the ozone purification rate more as the deterioration o the activated carbon continues.

Vehicular air cleaner

In an exhaust gas control system for an internal combustion engine operable at a lean air-fuel ratio, after a request to stop the internal combustion engine has been issued, the internal combustion engine is operated at a stoichiometric air-fuel ratio or lower until an air-fuel ratio in an SCR catalyst becomes lower than or equal to the stoichiometric air-fuel ratio, and then supply of fuel to the internal combustion engine is stopped.

Exhaust gas control system for internal combustion engine

An amount of ammonia flowing out from an SCR catalyst is reduced at the time of carrying out rich spike control to reduce an amount of NOx stored in an NSR catalyst. The NSR catalyst and the SCR catalyst are arranged in order in an exhaust passage of an internal combustion engine which is able to be operated at a lean air fuel ratio, wherein a target air fuel ratio of exhaust gas flowing into the NSR catalyst during the rich spike control is made higher within the range of a rich air fuel ratio, in the case where the outflow of ammonia from the SCR catalyst in accompany with the rich spike control is estimated or detected, than in the case where it is not estimated or detected.

Exhaust gas purification apparatus for an internal combustion engine

A cooling system for an internal combustion engine in which an exhaust purification catalyst is arranged in an exhaust passage of the internal combustion engine, the cooling system including: a cooling unit configured to cool the exhaust passage upstream of the exhaust purification catalyst; a heat transmission inhibition portion configured such that heat transfer from the exhaust passage downstream of a location cooled by the cooling unit to the cooling unit is inhibited; and a heat radiation suppression portion that is provided in a curved section positioned in the exhaust passage from a location where the heat transmission inhibition portion is provided to the exhaust purification catalyst, and that is configured to suppress heat radiation transmitted from exhaust gas flowing in the curved section to an atmosphere around the curved section through curved section passage walls forming the curved section. With such a configuration, the decrease in exhaust gas temperature can be suppressed.

Exhaust cooling system for internal combustion engine

An object of this invention is to provide an atmosphere-cleaning device for vehicles that is capable of restoring the function of an ozone purifying body carried by a vehicle component. Mud, dust, snow-melting agents as well as SOx and NOx are scattered into the atmosphere as a result of being swirled up by a preceding vehicle or due to weather and climate conditions. When such extraneous substances adhere or the like to an ozone purifying body, the purification sites thereof are clogged and the ozone purification function deteriorates. Therefore, when a predetermined removal implementation condition is established, control is executed to inject cleaning liquid from an injector to enhance the fluidity of the extraneous substances and wash the extraneous substances away. The function of the ozone purifying body can thereby be restored.

Atmosphere-cleaning device for vehicles

A control apparatus for an internal combustion engine includes a first exhaust passage through which an exhaust gas of a first cylinder group flows, a second exhaust passage through which an exhaust gas of a second cylinder group flows, a third exhaust passage formed by merging of the first exhaust passage and the second exhaust passage, a centrifugal supercharger equipped with a turbine arranged in the third exhaust passage, an exhaust gas purification device arranged in the third exhaust passage at a location downstream of the turbine of the centrifugal supercharger, a bypass passage branching from the first exhaust passage, and merging into the third exhaust passage at a location upstream of the exhaust gas purification device, and a waste gate valve for switching opening and closing of the bypass passage, wherein when inter-cylinder-group imbalance processing is carried out, the bypass passage is made to open.

Control apparatus for an internal combustion engine

The present invention relates to an air purification device for vehicles and the purpose of the present invention is to provide a DOR (Direct Ozone Reduction) system which suppresses deterioration in purifying function of the ozone purifier. Ozone purification rate of activated carbon correlates with probability that gas is contacted with the radiator. Also, wind velocity of the gas passing through a radiator correlates with car speed. Therefore, the ozone purification rate of the activated carbon correlates with the car speed, The grill shutteris controlled in fully open condition when the car speed is within an area faster than Speed A shown in FIG.When the car speed is slower than Speed A, the grill shutteris controlled in closed condition as shown in FIG.(A).

Air purification device for vehicles

A vehicle atmosphere purifying apparatus including an ozone purifying body, in which activated charcoal is coated on a core portion of radiators and a condenser, respectively. If water adheres to pores of activated charcoal or areas surrounding the pores, ozone becomes hard to enter mesopores and micropores. Even if ozone enters, an electron becomes hard to donate from the activated charcoal to the ozone. Consequently, the performance of the activated charcoal decreases while water is adhered thereto. When an amount of moisture adhered to activated charcoal is equal to or greater than a predetermined amount, moisture desorption control is executed that forcibly heats the activated charcoal to a high temperature to desorb the moisture therefrom.

Vehicle atmosphere purifying apparatus

An exhaust gas control apparatus () of an internal combustion engine () of a vehicle, which is provided with: the internal combustion engine which can use fuel containing methane in exhaust gas; an exhaust gas purifying apparatus () disposed in an exhaust passage of the internal combustion engine; an EGR passage () which can recirculate the exhaust gas to an intake passage of the internal combustion engine, in a HPL path which does not include the exhaust gas purifying apparatus; and an adjusting device () which can adjust an exhaust gas recirculation amount in the EGR passage, is provided with: a first specifying device for specifying a methane concentration in the exhaust gas; and a first controlling device for controlling the adjusting device to increase an exhaust gas recirculation amount in the HPL path if the specified methane concentration is greater than or equal to a reference value.

Exhaust gas control apparatus for internal combustion engine

The invention relates to an air purification device for a vehicle and has an object to provide a DOR (Direct Ozone Reduction) system that can improve durability of activated carbon as an ozone purifier. FIG.is a partially enlarged view of a fin of FIG.. FIG.() is a partial enlarged view of the fin in a front side, and FIG.() is a partially enlarged view of the fin in a rear side. As shown in FIGS.() and(), in a louver, a coat amount of activated carbon is adjusted so as to gradually increase from a front side toward a rear side. Thereby, durability as the radiator can be improved, while oxidation degradation of the activated carbon by active oxygen is allowed to some degree.

Air purification device for vehicle

An atmosphere-cleaning device equipped on vehicle and provides a DOR (Direct Ozone Reduction) system including an on-vehicle component on which a new ozone purifier is supported and a method for manufacturing same. A radiator has a core part including an ozone purifier with a particle of an activated carbon as its core and an ozone purification catalyst layer as its shell formed by powder plating process. Ozone can diffuse into the layer and the carbon in this order. Ozonolysis reaction with the sub-catalyst can be initiated in advance to ozonolysis reaction with the carbon thereby gas contact probability with the carbon can be relatively reduced and oxidation reaction of the carbon caused by active oxygen can be suppressed.

Atmosphere-cleaning device equipped on vehicle and method for manufacturing same

A control device for an internal combustion engine is mounted on a vehicle, and includes an engine, a catalyst and a control unit. The engine is a bifuel engine using gas fuel and liquid fuel as its fuel source. The control unit makes an air fuel ratio rich and increases a proportion of the gas fuel if a temperature of the catalyst is higher than a predetermined upper limit value at a time when the liquid fuel is used.

Growing community of inventors

Susono, Japan

Yoshihisa Shinoda