Patents by Inventor Takashi Hotta

Takashi Hotta 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).

  • Publication number: 20210284182
    Abstract: An information processing apparatus includes a controller configured to execute the processing of finding, in connection with a first vehicle whose cabin unit and travel unit are separable from each other and that is scheduled to travel a first section of road in which travelling with a travel unit of a first type is suitable and provided with a travel unit of a second type different from the first type, a second vehicle that is scheduled to travel the first section in the direction opposite to the direction of travel of the first vehicle and finish travelling the first section and provided with a travel unit of the first type, and instructing the first vehicle and the second vehicle to exchange the travel unit of the first type and the travel unit of the second type.
    Type: Application
    Filed: February 23, 2021
    Publication date: September 16, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki NAKANO, Masato URA, Koji TAKAO, Hideyuki SAKURAI, Keisuke HOTTA, Rieko MASUTANI, Atsushi HANAWA, Masanobu OHMI, Takashi HAYASHI, Atsushi NABATA, Tetsuro SAKAGUCHI
  • Publication number: 20210261153
    Abstract: An information processing apparatus which controls a plurality of vehicle platforms which can be coupled to and separated from a predetermined vehicle interior unit, the information processing apparatus comprises a controller configured to execute: transmitting a first command to transport the vehicle interior unit to a first location and install the vehicle interior unit, to one of the plurality of vehicle platforms; and in a case where all people who are to be on board the vehicle interior unit and move are on board the installed vehicle interior unit, transmitting a second command to transport the vehicle interior unit to a second location which is a destination of the people, to one of the plurality of vehicle platforms.
    Type: Application
    Filed: February 17, 2021
    Publication date: August 26, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki NAKANO, Masato URA, Koji TAKAO, Hideyuki SAKURAI, Keisuke HOTTA, Rieko MASUTANI, Atsushi HANAWA, Masanobu OHMI, Takashi HAYASHI, Atsushi NABATA, Tetsuro SAKAGUCHI
  • Patent number: 11047285
    Abstract: A control apparatus of an internal combustion engine controls a heat exchange cooling water flow rate which is a flow rate of cooling water supplied to an exhaust heat recovery cooler apparatus, to a larger flow rate when the control apparatus executes an EGR control, and the exhaust heat recovery cooler apparatus performs an exhaust heat recovery function, than when the control apparatus executes the EGR control, and the exhaust heat recovery cooler apparatus does not perform the exhaust heat recovery function.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 29, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Hirai, Takashi Hotta, Yuji Miyoshi
  • Publication number: 20200248640
    Abstract: A control apparatus of an internal combustion engine controls a heat exchange cooling water flow rate which is a flow rate of cooling water supplied to an exhaust heat recovery cooler apparatus, to a larger flow rate when the control apparatus executes an EGR control, and the exhaust heat recovery cooler apparatus performs an exhaust heat recovery function, than when the control apparatus executes the EGR control, and the exhaust heat recovery cooler apparatus does not perform the exhaust heat recovery function.
    Type: Application
    Filed: November 1, 2019
    Publication date: August 6, 2020
    Inventors: Takuya HIRAI, Takashi HOTTA, Yuji MIYOSHI
  • Patent number: 10563623
    Abstract: An EGR cooler in the disclosure includes: a gas path configured to allow an EGR gas to flow; a refrigerant path configured to perform heat exchange between the EGR gas circulating along the gas path and a refrigerant; an exothermic body containing portion configured such that an exothermic body to generate heat by adsorbing a predetermined working gas is contained within the EGR cooler and at least a part of the exothermic body contacts with a wall surface of the gas path; a working gas tank in which the working gas is stored; and a gas moving apparatus configured to move the working gas stored in the working gas tank, from the working gas tank to the exothermic body containing portion.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: February 18, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Shinagawa, Takashi Hotta, Takeo Yamaguchi, Yoshio Ohashi, Taizo Yoshinaga, Yuji Miyoshi
  • Publication number: 20190186430
    Abstract: An EGR cooler in the disclosure includes: a gas path configured to allow an EGR gas to flow; a refrigerant path configured to perform heat exchange between the EGR gas circulating along the gas path and a refrigerant; an exothermic body containing portion configured such that an exothermic body to generate heat by adsorbing a predetermined working gas is contained within the EGR cooler and at least a part of the exothermic body contacts with a wall surface of the gas path; a working gas tank in which the working gas is stored; and a gas moving apparatus configured to move the working gas stored in the working gas tank, from the working gas tank to the exothermic body containing portion.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 20, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro SHINAGAWA, Takashi HOTTA, Takeo YAMAGUCHI, Yoshio OHASHI, Taizo YOSHINAGA, Yuji MIYOSHI
  • Patent number: 10309324
    Abstract: This fuel property estimation device is used in an internal combustion engine that uses a mixed fuel of three kinds of fuel and includes a first sensor that outputs a signal responsive to a physical property of the fuel in a fuel route and a second sensor outputs a signal responsive to an oxygen concentration of exhaust gas. This device measures a physical property value of the mixed fuel based on a first sensor signal, and calculates an air-fuel ratio value at stoichiometric combustion state using feedback of a second sensor signal. This device estimates a composition ratio of the mixed fuel based on the measured physical property value and the calculated air-fuel ratio value by referring to a relationship between the composition ratio of the mixed fuel and the physical property value and a relationship between the composition ratio of the mixed fuel and a theoretical air-fuel ratio value.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: June 4, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Hotta, Kazuhisa Mogi, Koji Kitano, Satoshi Taniguchi
  • Patent number: 10260443
    Abstract: A controller for an internal combustion engine that has a port injection valve and is capable of running on a gasoline/alcohol mixed fuel comprises: load detecting means that detects a load during operation of the internal combustion engine; alcohol concentration detecting means that detects an alcohol concentration of the mixed fuel; and synchronous fuel injection increasing means that increases a fuel injection amount in a synchronous injection period in response to the load when the load detected by the load detecting means is higher than a predetermined load value and the alcohol concentration detected by the alcohol concentration detecting means is higher than a predetermined concentration value, the synchronous injection period being a period in which a period in which an intake valve is opened and a period in which the mixed fuel is injected from the port injection valve overlap with each other.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: April 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Hotta, Koji Kitano, Satoshi Taniguchi
  • Publication number: 20180340478
    Abstract: The control apparatus of the engine according to the invention controls an opening timing of each of intake valves to a predetermined opening timing after an intake top dead center when the engine operation starts. The apparatus prohibits the opening timing from advancing from the predetermined opening timing until a total intake air amount correlation value reaches a threshold after the engine operation starts. The apparatus permits the opening timing to advance from the predetermined opening timing after the total intake air amount correlation value reaches the threshold after the engine operation starts.
    Type: Application
    Filed: May 25, 2018
    Publication date: November 29, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takashi HOTTA
  • Patent number: 10107167
    Abstract: An exhaust-heat recovery apparatus includes: a circulation passage, through which a heat carrier circulates, that has a heat recovery unit evaporating the heat carrier and a condenser condensing the evaporated heat carrier; a heat carrier controller that supplies the heat carrier in a liquid phase to the circulation passage; and a determination unit, in which the heat carrier controller supplies or recovers the heat carrier when a changing rate of an internal pressure in the circulation passage or a changing rate of a temperature of the heat carrier in the circulation passage is within a predetermined range, determines a type of abnormality based on the changing rate of the internal pressure in the circulation passage or the changing rate of the temperature of the heat carrier in the circulation passage after the supplying or the recovering of the heat carrier.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: October 23, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Hotta, Kenichi Yamada
  • Publication number: 20170030272
    Abstract: This fuel property estimation device is used in an internal combustion engine that uses a mixed fuel of three kinds of fuel and includes a first sensor that outputs a signal responsive to a physical property of the fuel in a fuel route and a second sensor outputs a signal responsive to an oxygen concentration of exhaust gas. This device measures a physical property value of the mixed fuel based on a first sensor signal, and calculates an air-fuel ratio value at stoichiometric combustion state using feedback of a second sensor signal. This device estimates a composition ratio of the mixed fuel based on the measured physical property value and the calculated air-fuel ratio value by referring to a relationship between the composition ratio of the mixed fuel and the physical property value and a relationship between the composition ratio of the mixed fuel and a theoretical air-fuel ratio value.
    Type: Application
    Filed: November 10, 2014
    Publication date: February 2, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi HOTTA, Kazuhisa MOGI, Koji KITANO, Satoshi TANIGUCHI
  • Publication number: 20150308367
    Abstract: A controller for an internal combustion engine that has a port injection valve and is capable of running on a gasoline/alcohol mixed fuel comprises: load detecting means that detects a load during operation of the internal combustion engine; alcohol concentration detecting means that detects an alcohol concentration of the mixed fuel; and synchronous fuel injection increasing means that increases a fuel injection amount in a synchronous injection period in response to the load when the load detected by the load detecting means is higher than a predetermined load value and the alcohol concentration detected by the alcohol concentration detecting means is higher than a predetermined concentration value, the synchronous injection period being a period in which a period in which an intake valve is opened and a period in which the mixed fuel is injected from the port injection valve overlap with each other.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 29, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi HOTTA, Koji KITANO, Satoshi TANIGUCHI
  • Patent number: 9127599
    Abstract: The present invention is intended to suppress an excessive increase in the amount of emission of HC in a multi-fuel internal combustion engine of compression ignition type which is able to perform mixed combustion of a liquid fuel, which can be ignited by compression, and a gas fuel which has methane as a primary component. In the present invention, a required mixing ratio of the liquid fuel and the gas fuel as well as a required amount of HC emission is calculated based on an operating state of the multi-fuel internal combustion engine (S103, S104). Then, based on the required mixing ratio and the required amount of HC emission, a required compression ratio is calculated which is a compression ratio at which an amount of HC emission from the multi-fuel internal combustion engine becomes the required amount of HC emission (S105), and the compression ratio of the multi-fuel internal combustion engine is controlled to the required compression ratio (S107).
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 8, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiko Masubuchi, Takashi Hotta
  • Publication number: 20150176464
    Abstract: An exhaust-heat recovery apparatus includes: a circulation passage, through which a heat carrier circulates, that has a heat recovery unit evaporating the heat carrier and a condenser condensing the evaporated heat carrier; a heat carrier controller that supplies the heat carrier in a liquid phase to the circulation passage; and a determination unit, in which the heat carrier controller supplies or recovers the heat carrier when a changing rate of an internal pressure in the circulation passage or a changing rate of a temperature of the heat carrier in the circulation passage is within a predetermined range, determines a type of abnormality based on the changing rate of the internal pressure in the circulation passage or the changing rate of the temperature of the heat carrier in the circulation passage after the supplying or the recovering of the heat carrier.
    Type: Application
    Filed: May 31, 2012
    Publication date: June 25, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Hotta, Kenichi Yamada
  • Publication number: 20150136381
    Abstract: A heat transport device (1A) is provided with: a circulation path unit (10) in which a heat recovery unit (11) that vaporizing a heat transport medium and a condensation unit (12) that condenses the heat transport medium vaporized in the heat recovery unit (11) are incorporated, and which has a vacuum state; a branch path unit (20) which branches from the circulation path unit (10), and in which a valve (22) capable of controlling flow is incorporated; and an ECU (40A) which implements a first control unit and is configured to, when it is recognized that there is an increase in the pressure within the circulation path unit (10) under the same operating condition, open and close the valve (22) in the state in which the pressure within the circulation path unit (10) is higher than a predetermined pressure (?).
    Type: Application
    Filed: April 23, 2012
    Publication date: May 21, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Hotta, Kenichi Yamada, Takayuki Iwakawa
  • Publication number: 20140025277
    Abstract: The present invention is intended to suppress an excessive increase in the amount of emission of HC in a multi-fuel internal combustion engine of compression ignition type which is able to perform mixed combustion of a liquid fuel, which can be ignited by compression, and a gas fuel which has methane as a primary component. In the present invention, a required mixing ratio of the liquid fuel and the gas fuel as well as a required amount of HC emission is calculated based on an operating state of the multi-fuel internal combustion engine (S103, S104). Then, based on the required mixing ratio and the required amount of HC emission, a required compression ratio is calculated which is a compression ratio at which an amount of HC emission from the multi-fuel internal combustion engine becomes the required amount of HC emission (S105), and the compression ratio of the multi-fuel internal combustion engine is controlled to the required compression ratio (S107).
    Type: Application
    Filed: April 8, 2011
    Publication date: January 23, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiko Masubuchi, Takashi Hotta
  • Patent number: 8244496
    Abstract: An object of the present invention is to estimate a viscosity of a fuel with high accuracy at all times, irrespective, for example, of fuel properties or conditions of deterioration with time. An internal combustion engine 10 includes a fuel pump 32 for supplying an injection valve with fuel in a tank 24. An ECU 40 detects a transition time t that begins when a drive signal is outputted to the fuel pump 32 and ends when the pump enters a steady operating state. At a start of the fuel pump 32, the higher the viscosity of the fuel, the longer the transition time t tends to be. The ECU 40 therefore detects the viscosity of the fuel based on a deviation ?t between the transition time t and a reference time t0.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: August 14, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akio Kumagai, Takashi Hotta
  • Publication number: 20110130979
    Abstract: An object of the present invention is to estimate a viscosity of a fuel with high accuracy at all times, irrespective, for example, of fuel properties or conditions of deterioration with time. An internal combustion engine 10 includes a fuel pump 32 for supplying an injection valve with fuel in a tank 24. An ECU 40 detects a transition time t that begins when a drive signal is outputted to the fuel pump 32 and ends when the pump enters a steady operating state. At a start of the fuel pump 32, the higher the viscosity of the fuel, the longer the transition time t tends to be. The ECU 40 therefore detects the viscosity of the fuel based on a deviation ?t between the transition time t and a reference time to.
    Type: Application
    Filed: May 18, 2009
    Publication date: June 2, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akio Kumagai, Takashi Hotta
  • Patent number: 7882929
    Abstract: A delivery pipe includes an outer pipe, an inner pipe, and a noise emission decreasing device. The outer pipe is connected to a plurality of fuel injectors. The inner pipe is disposed in the outer pipe and has an open end through which an interior of the inner pipe communicates with atmosphere. The noise emission decreasing device acts so as to decrease a noise emitted from the inner pipe. The noise emission decreasing device includes a mesh, a porous member, a vibration suppressing member provided to the inner pipe, an elastic tube fitted into the inner pipe, or a wire harness inserted into the inner pipe.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: February 8, 2011
    Assignees: Toyota Jidosha Kabushiki Kaisha, Maruyasu Industries Co., Ltd.
    Inventors: Takashi Hotta, Tamiyuki Nakane, Katsutoshi Kato
  • Patent number: 7557809
    Abstract: The basic section of the multimedia data-processing system includes a CPU 1100, an image display unit 2100, a unified memory 1200, a system bus 1920, and devices 1300, 1400, and 1500 connected to the system bus. In this configuration, the CPU is formed on an LSI mounted on a single silicon wafer including instruction processing unit 1110 and display control unit 1140. Main storage area 1210 and display area 1220 are stored within the unified memory. Unified memory port 1910 for connecting the corresponding LSI and the unified memory is provided independently of the system bus intended to connect the LSI and the input/output devices. The unified memory port can be driven faster than system bus.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: July 7, 2009
    Assignee: Renesas Technology Corp.
    Inventors: Yasuhiro Nakatsuka, Tetsuya Shimomura, Manabu Jyou, Yuichiro Morita, Takashi Hotta, Kazushige Yamagishi, Yutaka Okada