Patents Assigned to Isuzu Motors Limited
  • Patent number: 10774764
    Abstract: In order to adequately suppress both an increase in NOx emission amount and deterioration of fuel consumption rate, the present invention provides a fuel injection control information generation device equipped with: a test point information storage unit for holding test point information including a plurality of test points constituted by sets of engine speed, fuel injection amount, and oxygen concentration; and a control information generation unit for generating, for each test point included in the test point information, fuel injection control information in which the engine speed, fuel injection amount, and oxygen concentration of the test point are associated with an optimum fuel injection timing at which an index pertaining to the total of a fuel consumption rate and an NOx emission amount in the test point becomes the smallest.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 15, 2020
    Assignees: ISUZU MOTORS LIMITED, TRANSTRON INC.
    Inventors: Satoshi Hanawa, Hidekazu Fujie, Yoshiaki Ikai, Takuma Degawa
  • Patent number: 10774707
    Abstract: A non-transitory computer-readable medium having a NOx sensor purification instructions for a NOx sensor causes: an on-vehicle electronic computer mounted in the vehicle, when it comes to a predetermined purification time, to execute a start procedure to send a start command to perform a purification control to the control unit; and control unit, in response to the start command, to execute a purification procedure to perform the purification control which causes the current flowing in the reference pump cell from the reference pump current to be a purification pump current, which is set to a current value larger than the reference pump current.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 15, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kouji Sakumoto
  • Patent number: 10769815
    Abstract: The image processing device includes a scale correction unit. In a case where a difference between a width of a lane calculated by a lane-width calculation unit and a width of the lane acquired from map data is greater than a predetermined value that serves as a criterion for correcting errors, the scale correction unit corrects a correlation between a length of a subject in a captured image and the number of pixels constituting the captured image.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 8, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Teruhiko Suzuki
  • Patent number: 10760668
    Abstract: A transmission assembly structure includes an engine-side joining surface, a transmission-side joining surface, which is joined to the engine-side joining surface, an engine component which is provided on an outside of the engine-side joining surface in a radial direction in the flywheel housing and protrudes toward the transmission side, a guide member which is provided on the engine-side joining surface or in the vicinity of the engine-side joining surface of the flywheel housing and in a vicinity of the engine component and which protrudes toward the transmission side further than the engine component, and a guide hole, which is provided on the transmission-side joining surface of the transmission housing or in the vicinity of the transmission-side joining surface and into which the guide member is inserted.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 1, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tsutomu Matsunaga, Naoki Mizukami, Daisuke Sueoka, Isao Kitsukawa
  • Patent number: 10753245
    Abstract: A rich-wait-time threshold value is set based on the NOx discharge amount per unit time discharged from an internal combustion engine. When the elapsed time, i.e. either the elapsed engine operation time since rich control was performed on a lean NOx trap catalyst device, or the elapsed engine operation time since the engine was started, becomes equal to or greater than the rich-wait-time threshold value, a determination that the rich control be started is added as a necessary condition for starting the rich control. Accordingly, an exhaust gas purification system for an internal combustion engine, an internal combustion engine, and an exhaust gas purification method for an internal combustion engine are provided, with which the execution timing of the rich control for recovering the NOx occlusion capacity of the lean NOx trap catalyst device is rendered more appropriate, and thus NOx reduction is performed with little fuel consumption deterioration.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: August 25, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Daiji Nagaoka, Teruo Nakada, Takayuki Sakamoto
  • Publication number: 20200255061
    Abstract: The present invention reduces motor size in a steering device. To this end, this steering device (1) to be installed in a vehicle has: a power steering unit (12) positioned below the floor section (7) of the vehicle compartment (2); a steering shaft (first steering shaft (4), second steering shaft (6), and third steering shaft (11)), one end of which is connected to a steering wheel (3) and the other end of which is connected to the power steering unit (12); and a coaxial motor (20) which applies a rotational force to the steering shaft and is provided in a manner such that the output shaft thereof is coaxial with the steering shaft.
    Type: Application
    Filed: July 19, 2018
    Publication date: August 13, 2020
    Applicant: Isuzu Motors Limited
    Inventors: Junpei OKUTANI, Haruyuki HOSOYA, Kousuke KAWAKAMI
  • Publication number: 20200255056
    Abstract: A steering device exhibiting improved layout properties around a steering shaft. A steering device (1) installed in a vehicle has: a first steering shaft (4), one end of which is connected to a steering wheel (3); a second steering shaft (6) positioned below the first steering shaft (4) and in a manner such that the one end thereof connected to the other end of the first steering shaft (4) is located above the floor section (7) of the vehicle compartment (2); and a coaxial motor (20) which applies a rotational force to the first steering shaft (4) and is provided in a manner such that the output shaft thereof is coaxial with the first steering shaft (4).
    Type: Application
    Filed: July 18, 2018
    Publication date: August 13, 2020
    Applicant: Isuzu Motors Limited
    Inventors: Junpei OKUTANI, Haruyuki HOSOYA, Kousuke KAWAKAMI
  • Publication number: 20200255062
    Abstract: The present invention reduces motor size in a steering device. To this end, this steering device (1) to be installed in a vehicle has: a power steering unit (12) positioned below the floor section (7) of the vehicle compartment (2); and a coaxial motor (20) which is provided directly above the power steering unit (12) and in a manner such that the output shaft thereof is coaxial with the input shaft of the power steering unit (12).
    Type: Application
    Filed: July 19, 2018
    Publication date: August 13, 2020
    Applicant: Isuzu Motors Limited
    Inventors: Junpei OKUTANI, Haruyuki HOSOYA, Kousuke KWAGAWA
  • Patent number: 10738840
    Abstract: The present disclosure includes: a creep control unit configured to perform a creep control including bringing one of a first clutch and a second clutch into a half-clutch state and bringing the other into a disengaged state, so as to transmit a predetermined torque from a drive source to a transmission mechanism via a clutch device; and a clutch switching control unit configured to, when a vehicle stops during the performing of the creep control, perform a clutch switching control including, on the basis of the heat-generating state of the one clutch that is maintained in the half-clutch state from the stop of the vehicle, switching the one clutch from the half-clutch state to the disengaged state and switching the other clutch from the disengaged state to the half-clutch state.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 11, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Koji Terashima
  • Publication number: 20200242940
    Abstract: The present invention is configured such that a control device for a lane departure warning device that outputs a warning on the basis of the position relationship of a vehicle and a lane boundary line is equipped with a detection unit for detecting a switch of a brake from on to off, and a warning control unit for, when the detection unit has detected said switch, changing a warning threshold value to which vehicle position information is compared in the determination of whether or not to issue a warning to a value at which a warning is less likely to be issued as compared to when the detection unit has not detected said switch. The present invention thereby provides a control device for a lane departure warning device that is capable of reducing warnings which could be an annoyance to drivers.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 30, 2020
    Applicant: Isuzu Motors Limited
    Inventors: Naoki TAKAHASHI, Masaichi TAKAHASHI
  • Patent number: 10724463
    Abstract: A process of causing an engine (10) to perform high-temperature exhaust driving (D1) after urea water from an urea water injection valve (33) is not supplied to an SCR catalyst (34), and a process of causing the engine (10) to perform high-flow-rate exhaust driving (D2) after a flow rate of exhaust gas from a cylinder interior (13) is not reduced are performed on an ECU (40). A process of determining deterioration or malfunction of upstream and downstream NOx sensors (47 and 48) based on detected values (Ca and Cb) acquired when the engine speed (Na) reaches a determination speed (Nx) is performed on a vehicle external computer (52).
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 28, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kouji Sakumoto
  • Publication number: 20200223496
    Abstract: A steering device exhibiting improved layout properties around a steering shaft. A steering device installed in a vehicle, the vehicle compartment of which is capable of tilting, has: a first steering shaft, one end of which is connected to a steering wheel; a second steering shaft positioned below the first steering shaft and in a manner such that the one end thereof connected to the other end of the first steering shaft is located above the floor section of the vehicle compartment; and a coaxial motor which applies a rotational force to the first steering shaft and is provided in a manner such that the output shaft thereof is coaxial with the first steering shaft. Furthermore, the second steering shaft is capable of telescoping, because a shaft and a cylindrical member are connected so as to be capable of sliding relative to one another in the axial direction.
    Type: Application
    Filed: July 18, 2018
    Publication date: July 16, 2020
    Applicant: Isuzu Motors Limited
    Inventors: Junpei OKUTANI, Haruyuki HOSOYA, Kousuke KAWAKAMI
  • Patent number: 10711673
    Abstract: An exhaust purification system includes: a fuel injection amount acquisition unit, which acquires a fuel injection amount of a vehicle; a temperature acquisition unit which acquires a temperature of a catalyst for reducing and purifying nitrogen compounds in exhaust; a temperature control unit, which controls the temperature of the catalyst; and an execution control unit, which causes the temperature control unit to increase the temperature of the catalyst when the temperature of the catalyst is lower than a predetermined threshold and the fuel injection amount satisfies a predetermined condition.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: July 14, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Yuuki Sugaya, Takayuki Koike, Kenta Shioyasu
  • Patent number: 10696292
    Abstract: In the present invention, when an engine of a hybrid vehicle is in a cooled state, a control device 70 thereof performs control so as to disengage an engine clutch 14 configured from a wet multi-disc clutch and supply electrical power to a motor generator 21 from a high-voltage battery 24 to rotationally drive the motor generator 21 in order to agitate clutch oil 86 in the engine clutch 14 and raise the temperature thereof.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: June 30, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Haruo Suzuki, Hiroki Seto, Ryou Morimoto
  • Publication number: 20200198692
    Abstract: A steering assistance device includes: a steering angle detection unit that detects the steering angle of a vehicle; a pump unit that performs steering assistance of the vehicle by using oil pressure; a motor that performs steering assistance of the vehicle by using electrical power; and a steering control unit that causes the pump unit to perform steering assistance with the steering assistance amount thereof reduced by a predetermined amount from the predetermined steering assistance amount, and causes the motor to perform steering assistance, in a case where the pump unit can perform steering assistance in a steering assistance amount predetermined for the detected steering angle.
    Type: Application
    Filed: August 2, 2017
    Publication date: June 25, 2020
    Applicant: ISUZU MOTORS LIMITED
    Inventor: Teruhiko SUZUKI
  • Publication number: 20200200059
    Abstract: Provided is an injection device capable of suppressing the deposition of white products and performing an exhaust gas purification treatment. This injection device is provided with: an injection unit which is provided upstream of a selective reduction-type catalyst device provided inside an exhaust pipe constituting an exhaust passage of an internal combustion engine, and injects a urea aqueous solution or a diethylamine aqueous solution; a determination unit which determines whether white products derived from the urea aqueous solution injected by the injection part are deposited inside the exhaust pipe; and an injection control unit which controls the injection part to inject the diethylamine aqueous solution when the determination unit has determined that the white products were deposited.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 25, 2020
    Applicant: Isuzu Motors Limited
    Inventor: Keiko SHIBATA
  • Patent number: 10690073
    Abstract: An exhaust purification system includes: an NOx reduction type catalyst; an MAF sensor; an SOx purge control unit that uses an air system control having an intake air amount feedback-controlled based on a target intake air amount and an injection system control for a target injection increase amount set based on the target intake air amount, and a fuel injection amount feedback-controlled based on the target injection increase amount; an SOx purge prohibition processing unit that prohibits an SOx purge control; and a warming mode control unit that open-loop controls an air system when the SOx purge control is prohibited, controls the fuel injection amount, and maintains the exhaust gas at a temperature. The SOx purge control unit executes the injection system control by switching the target intake air amount into an actual intake air amount when starting the SOx purge control after a warming mode control is ended.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: June 23, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Teruo Nakada, Takayuki Sakamoto, Daiji Nagaoka, Tomohiro Korenaga
  • Patent number: 10690229
    Abstract: A method for attaching a gear driving part of this disclosure includes a first step of inserting a positioning bolt (23) into a positioning hole (21) of a first gear from a front side, and then screwing the positioning bolt into a screw hole (24) of a fixation-side member to regulate a phase of the first gear with respect to the fixation-side member; and a second step of inserting a portion of the bolt protruding to a front side of the first gear into a hole (22) of the gear case, and meshing the first gear with the second gear while positioning the fixation-side member in a predetermined phase position of the gear case.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: June 23, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Isao Kitsukawa, Naoki Mizukami, Daisuke Sueoka, Takaya Maeda
  • Patent number: 10690015
    Abstract: A cam carrier includes a pair of longitudinal frames provided parallel to an axial direction of a camshaft and a plurality of transversal frames connected to the pair of longitudinal frames to be spaced from each other and supporting the camshaft via cam bearings. A flexible structure suppressing amounts of change in a relative position and an inclined angle of the cam bearings relative to the camshaft due to a thermal expansion is provided on at least one of wall surfaces of the longitudinal frames, the wall surfaces being located between adjacent transversal frames.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: June 23, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Kouji Hirukawa
  • Patent number: 10683819
    Abstract: Provided is an internal combustion engine including a control device 40 configured to adjust fuel injection valves 12 and a resting mechanism 30 and thereby executing a control of switching between an all-cylinder operation Oa and a reduced-cylinder operation Or, the all-cylinder operation Oa being an operation in which a combustion cycle is always performed in all of the cylinders 11, and the reduced-cylinder operation Or being an operation in which a combustion cycle is always performed in some cylinders 11 less than a cylinder number Nc, wherein in the reduced-cylinder operation Or, all of the cylinders 11 perform a partial operation in which an operating state and a resting state thereof are repeated.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 16, 2020
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Hiroshi Tsunoda