Patents Assigned to Hitachi Automotive Systems, Ltd.
  • Publication number: 20210226507
    Abstract: A power supplying-side terminal (38) has a power supplying-side hanging portion (38H) extending toward a surface of the circuit board (31), a power supplying-side extending portion (38E) bent from the power supplying-side hanging portion (38H) and extending outwards along the surface of the circuit board (31) and a power supplying-side standing portion (38S) bent from the power supplying-side extending portion (38E) and extending in a direction away from circuit board (31). A power receiving-side terminal (39) has a power receiving-side extending portion (39E) extending outwards along the surface of the circuit board (31) and a power receiving-side standing portion (39S) bent from the power receiving-side extending portion (39E) and extending in the direction away from circuit board (31). The power supplying-side standing portion (38S) and the power receiving-side standing portion (39S) overlap each other, and connected to each other so as to have electrical continuity.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Keiji HAMADA
  • Publication number: 20210221402
    Abstract: A prediction control device is realized which can respond to changes in the surrounding situations while the own vehicle is traveling and can perform a rapid operation during normal driving and in an emergency as if a person drives. The prediction control device includes a means (103, 104) for detecting a change amount and a change direction of surroundings and the own vehicle, and a means 105 for setting an initial value and a prediction period of a solution search calculation in a prediction control means based on the detection result. The means 105 for setting the initial value and the prediction period has a fail operational control mode in which the initial value and the prediction period set according to the change amount of the surroundings and the own vehicle is set with a previous calculation result of the solution search calculation to the initial value.
    Type: Application
    Filed: June 5, 2019
    Publication date: July 22, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Toshiaki NAKAMURA, Teppei HIROTSU, Hideyuki SAKAMOTO
  • Publication number: 20210222737
    Abstract: A propeller shaft (1), as a power transmitting shaft, of the present invention is configured such that a snap ring (8) as a retaining ring can be inserted inwards into a first penetration slot (31) formed at a tubular portion body (33) of a tubular portion (30) from a radial direction outer side. With this, good workability of assembly of the snap ring (8) is secured. Further, an engagement-stop state of a second shaft (3) by the snap ring (8) can be visually checked from the outside through the first penetration slot (31), then check of an engagement state by the snap ring (8) can be made.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kenichi SUGIYAMA, Kenichiro ISHIKURA
  • Publication number: 20210227687
    Abstract: A circuit board (3) is provided with a first rigid part (11) having a power system electronic component mounted thereon, a second rigid part (12) having a control system electronic component mounted thereon, and a thin flexible part (13) connecting the first and second rigid parts to each other. The flexible part (13) is provided with a plurality of conductive wires (27) conducted with the electronic components of the first and second rigid parts (11, 12). A non-conductive metal pattern (33) that is a dummy pattern is formed along an outer edge (13a) of the flexible part (13). By the non-conductive metal pattern (33), the disconnection of the conductive wires (27) due to cracking is suppressed.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Kumiko YOSHINAGA, Eiji ICHIKAWA, Hirofumi WATANABE, Mototaka TAKAHASHI
  • Publication number: 20210221379
    Abstract: There is provided a control device for vehicles which can improve quietness and fuel economy, while maintaining high responsiveness to acceleration of a vehicle. Therefore, the control device 100 for vehicles includes a gear ratio control unit 10 that controls a gear ratio of a vehicle V, and a determination unit 20 that determines whether or not there is an acceleration limit of the vehicle V. The gear ratio control unit 10 is configured to limit an increase in gear ratio Rt, when the determination unit 20 determines that there is an acceleration limit.
    Type: Application
    Filed: June 19, 2019
    Publication date: July 22, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yasuaki SATO, Hiroyuki OOIWA, Hideki SEKIGUCHI, Hiroyuki SAKAMOTO, Shogo MIYAMOTO
  • Publication number: 20210220901
    Abstract: A method for manufacturing a steering shaft of a steering device includes: a reduced-diameter section forming process in which a second-phase member is formed from a first-phase member by forming a reduced-diameter section in the first-phase member; and a ball screw groove forming process in which a third-phase member is formed from the second-phase member by forming a ball screw groove in the second-phase member by rolling.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Keisuke KITAMURA, Tatsuyoshi MARUYAMA
  • Publication number: 20210227108
    Abstract: An imaging module includes: a substrate on which an imaging element is mounted and in which a through-hole is formed; a holding section that has a support pin inserted into the through-hole in such a manner that the support pin penetrates the through-hole and that holds an optical system forming a subject image on the imaging element; and an adhesive that is provided in the through-hole and that fixes the substrate to the support pin, and at least a tip end portion of the support pin has a tapered shape from a root side of the support pin toward a tip end of the support pin.
    Type: Application
    Filed: April 13, 2017
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki OKAMURA, Akihiro YAMAGUCHI, Chiemi KUBOTA, Hidenori SHINOHARA, Kenichi TAKEUCHI
  • Publication number: 20210221426
    Abstract: An object of the present invention is to provide an electric power steering apparatus having a wiring structure effective for simplification. A power supply circuit board 23, a power conversion circuit board 24, and a control circuit board 25 are stacked and disposed in three stages in which the power supply circuit board 23 is disposed in a middle with a first flexible portion 34 and a second flexible portion 35 as a bend portion. A power supply circuit board connection terminal 42B and a control circuit board connection terminal 52B provided in a connector terminal assembly are electrically connected to a receiving terminal 42C of the power supply circuit board 23 and a receiving terminal 52C of the control circuit board 25, respectively, by being inserted and press-fitted thereinto.
    Type: Application
    Filed: April 17, 2019
    Publication date: July 22, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Kiyotaka KANNO, Haruaki MOTODA
  • Publication number: 20210222664
    Abstract: Ignitability of a fuel by a spark plug is improved while an increase in the number of ignition coils is suppressed. A control device for an internal combustion engine includes an ignition control unit 83 which controls energization of an ignition coil 300a and an ignition coil 300b which each provide electric energy to a spark plug which discharges in a cylinder of an internal combustion engine to ignite a fuel, and a discharge amount detection unit which detects an inter-electrode voltage of the spark plug.
    Type: Application
    Filed: April 17, 2019
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Eiichirou OHATA
  • Publication number: 20210226574
    Abstract: A motor control device includes a first inverter selector configured to output first PWM signals selectively or simultaneously to a first inverter unit and a second inverter unit, and a first microcomputer configured to output the first PWM signals and a first selection signal to the first inverter selector, and the first selection signal contains information on whether the first PWM signals are to be output to the first inverter unit and whether the first PWM signals are to be output to the second inverter unit.
    Type: Application
    Filed: February 4, 2019
    Publication date: July 22, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Makoto KIMURA, Kohtaro SHIINO, Hideaki SHIMAZU
  • Patent number: 11067022
    Abstract: Provided is a knocking detection apparatus capable of reducing erroneous determination of knocking during transition, and improving knocking detection accuracy regardless of whether an engine is in steady operation or transient operation. A knocking detection apparatus according to the present invention estimates a background level based on an operating state of an internal combustion engine, and calculates a knocking determination index by using the estimated value.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshihiko Akagi, Masashi Seimiya, Seiji Asano, Wataru Katou, Masanori Nukui, Masahiro Sato
  • Patent number: 11067419
    Abstract: Provided is a thermal flowmeter that can achieve both measurement accuracy and antifouling performance with a simple and space-saving passage structure. In the thermal flowmeter of the invention, a housing is disposed in a main passage through which a gas to be measured flows, and the gas to be measured is taken from the main passage into an auxiliary passage provided in a housing, and a flow rate detection unit disposed in the auxiliary passage measures a flow rate of the gas to be measured. The auxiliary passage includes an inlet opening that opens to be inclined with respect to the main flow direction of the gas to be measured flowing through the main passage, and an inclined passage that extends in a direction inclined with respect to the main flow direction of the gas to be measured flowing from the inlet opening through the main passage.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tomoaki Saito, Masayuki Satou, Akira Takasago, Noboru Tokuyasu
  • Patent number: 11067045
    Abstract: In a fuel injection device, a driving unit structure has a magnetic aperture, in which an inner diameter is gradually enlarged toward the mover side, provided in an inner peripheral surface of the magnetic core. It is possible to reduce magnetic delay time upon valve opening from the supply of the electric current to the coil to the rise of magnetic flux and magnetic delay time upon valve closing from the stoppage of the electric current to the coil to reduction of magnetic flux, by providing a magnetic aperture in the inner peripheral surface of the magnetic core. Thus it is possible to improve the dynamic responsiveness upon valve opening and valve closing.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: July 20, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Ryo Kusakabe, Motoyuki Abe, Tohru Ishikawa, Noriyuki Maekawa, Masahiro Soma, Takao Miyake, Yasuo Namaizawa
  • Patent number: 11067052
    Abstract: Provided is a control device of an internal combustion engine that reduces the number of times of discharge in multiple discharge by an ignition plug of the internal combustion engine and suppresses an error in fuel ignition by the ignition plug. The control device according to the present invention includes an ignition plug provided in a cylinder of an internal combustion engine, and an ignition control unit which has an ignition control function of controlling discharge (ignition) of the ignition plug and an ignition detection function of detecting ignition of an air-fuel mixture through ignition by the ignition plug. The ignition control unit is configured to stop ignition by the ignition plug on the basis of detection of ignition of the air-fuel mixture by the ignition plug.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Eiichirou Oohata
  • Patent number: 11066080
    Abstract: Implemented is a highly reliable vehicle control device capable of performing control transition safely to a degeneration control microcomputer even if an operation abnormality occurs in a control microcomputer in a vehicle control device. Provided are: a control microcomputer 11b that outputs a control command to an actuator control device; and a degeneration control microcomputer 12b for control transition when an abnormality is detected in the control microcomputer 111b. When transitioning to the degeneration control microcomputer 12b when detecting the abnormality in the control microcomputer 11b, the control microcomputer 12b is notified of the abnormality of the control microcomputer 11b, and the control microcomputer 11b is reset after the required transition period of the degeneration control microcomputer 12b has elapsed and the degeneration control has started. As a result, a control blank period is eliminated.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Hideyuki Sakamoto
  • Patent number: 11065938
    Abstract: The present invention provides a control device capable of controlling a cooling device in response to temperature changes due to external factors. The present invention is a control device for controlling a cooling device for cooling an object to be cooled, said control device being characterized by comprising: a temperature change prediction information acquisition unit for acquiring temperature change prediction information, which is information concerning temperature changes of the object to be cooled; a temperature change prediction unit for predicting the temperature changes of the object to be cooled on the basis of the temperature change prediction information acquired by the temperature change prediction information acquisition unit; and a control unit for controlling the cooling device for cooling the object to be cooled, such control carried out on the basis of the prediction results according to the temperature change prediction unit.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Noriaki Kimura, Atsushi Ichige
  • Patent number: 11067041
    Abstract: A novel control device for an internal combustion engine capable of highly accurately estimating an EGR amount (rate) during the transient state is provided. A first EGR rate is determined using, as an input, a detection signal of an EGR sensor provided on the downstream side of a throttle valve which adjusts the flow rate of a mixed gas of air and EGR gas flowing through an intake pipe, a second EGR rate is estimated by calculating a predetermined equation using, as an input, at least a detection signal of an air flow sensor and an EGR valve opening degree sensor, a third EGR rate is determined by carrying out delay processing on the second EGR rate corresponding to a response delay of the EGR sensor, and the second EGR rate is subjected to learning correction by reflecting a difference between the third EGR rate and the first EGR rate.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 20, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takafumi Arakawa, Yoichi Iihoshi, Kunihiko Suzuki, Toshio Hori
  • Patent number: 11067875
    Abstract: The present invention provides a stereo camera device with which it is possible to prevent the deformation of a housing caused by a warp or strain imposed on a cover and a difference in the rate of increase of the temperature of the housing and the cover, as well as to reduce the size of the housing and to cut down component counts and assembly man-hours. In the present invention, fixing of a substrate and a housing together and fixing of a cover and the housing together are performed in common, and the substrate and the cover are fixed to the housing at the same (common) fixing point, whereby a warp or strain imposed on the cover and a difference in the rate of increase of the temperature of the housing and the cover are absorbed by an elastic body that is used for floating/fixing and is provided for the purpose of cancelling a difference in the amount of contraction and expansion caused by a difference in the coefficient of linear expansion of the substrate and the housing.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 20, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keisuke Masuda, Yoshiyuki Sasada
  • Patent number: 11070001
    Abstract: Airtightness of a connector molding is improved. There is provided a connector molding in which a conductor and a fixing member are integrally molded with a molded body including a connector portion. The conductor is fixed to the fixing member, and is integrally molded with the molded body in a state in which an external connection end portion protrudes into a space within the connector portion. A part of the fixing member is exposed to the space within the connector portion and the remaining portion is covered by the molded body, or the entire fixing member is covered by the molded body.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: July 20, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yusuke Kitai, Katsuhide Oohashi, Ko Sasaki, Takayuki Hagiya, Takuya Igarashi, Michimori Watanabe
  • Publication number: 20210214004
    Abstract: An object of the present invention is to estimate a center-of-gravity position and inertia moment of a trailer and supply the center-of-gravity position and inertia moment for control of an articulated vehicle so as to enable further stabilization of a posture of the articulated vehicle during traveling. A vehicle control device of the present invention is a vehicle control device mounted on a tractor which pulls a trailer, and is provided with: a steering angle control unit that controls a steering angle of wheels of the tractor independently of steering by a driver; and a trailer characteristic estimation unit that estimates a characteristic of the trailer based on a behavior of the tractor during wheel steering by the steering angle control unit.
    Type: Application
    Filed: February 21, 2019
    Publication date: July 15, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Shinji SETO, Junya TAKAHASHI, Tomoaki FUJIBAYASHI, Hiroshi NAKANO