Patents Assigned to Denso Corporation
  • Publication number: 20220146590
    Abstract: A degradation degree assessment device for a secondary battery is to assess a degree of degradation of a secondary battery and includes a battery characteristic acquisition unit, a capacity estimation unit, and an assessment unit. The battery characteristic acquisition unit acquires a battery characteristic relating to a voltage transition of the secondary battery in a predetermined voltage section. The assessment unit assesses the degree of degradation of the secondary battery based on the battery characteristic acquired by the battery characteristic acquisition unit or based on a battery characteristic-related value computed on the basis of the battery characteristic.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: DENSO CORPORATION
    Inventors: Tomomi ASAI, Nobuo YAMAMOTO, Hiroyasu SUZUKI, Katsuki HAYASHI, Yuya MINABE
  • Publication number: 20220149665
    Abstract: A power supplying device includes a power transmission circuit transmitting AC power and a power transmission resonance circuit including a power transmission coil. A power receiving device includes a power reception resonance circuit including a power reception coil. When a coupling coefficient between the power transmission coil and the power reception coil is a predetermined coupling coefficient, resonance of a first resonance mode having a first resonance frequency and a second resonance mode having a second resonance frequency are generated, a resonance frequency of the power transmission resonance circuit and the power reception resonance circuit is set to a value which is one of the first and second resonance frequencies, and the set value is a frequency deviating from a reference resonance frequency of the power transmission resonance circuit alone by a predetermined deviation frequency or more. A driving frequency of the AC power is set to the set value.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: DENSO CORPORATION
    Inventors: Kazuyoshi OBAYASHI, Nobuhisa YAMAGUCHI
  • Publication number: 20220149663
    Abstract: In a dynamic wireless power transfer system, a power transmission coil is provided in a road. A power transmission circuit supplies electric power to the power transmission coil. A power reception coil is provided in a vehicle. A power reception circuit is connected to the power reception coil. A relay circuit is provided in a tire of the vehicle. The relay circuit includes at least two relay coils that are connected in series. The relay circuit transfers electric power from the power transmission coil to the power reception coil by one relay coil of the two relay coils opposing the power transmission coil and the other relay coil opposing the power reception coil. A resonance frequency of the relay circuit is a frequency that is within a fixed range that is centered on an applied frequency of an alternating-current voltage that is applied to the power transmission coil.
    Type: Application
    Filed: January 20, 2022
    Publication date: May 12, 2022
    Applicant: DENSO CORPORATION
    Inventors: Hayato SUMIYA, Eisuke TAKAHASHI, Nobuhisa YAMAGUCHI, Masaya TAKAHASHI
  • Publication number: 20220149664
    Abstract: A contactless power feeding device that supplies electric power to a power receiving device without contact includes: a power transmitting circuit that transmits alternating-current power; and a power transmitting resonator including a power transmitting coil. The input impedance of the power transmitting resonator is set low in a facing state in which a power receiving coil included in the power receiving device faces the power transmitting coil, and the input impedance of the power transmitting resonator is set high in a non-facing state in which the power receiving coil does not face the power transmitting coil.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: DENSO CORPORATION
    Inventors: Masaya TAKAHASHI, Eisuke TAKAHASHI, Hayato SUMIYA, Nobuhisa YAMAGUCHI
  • Publication number: 20220149666
    Abstract: A dynamic wireless power transfer system includes a power transmission coil, a power transmission circuit, a power reception coil, a power reception circuit, and a relay circuit. The power transmission coil is provided in a road. The power transmission circuit supplies electric power to the power transmission coil. The power reception coil is provided in a vehicle. The power reception circuit is connected to the power reception coil. The relay circuit transfers electric power between the power transmission coil and the power reception coil in a contactless manner.
    Type: Application
    Filed: January 26, 2022
    Publication date: May 12, 2022
    Applicants: DENSO CORPORATION, The University of Tokyo
    Inventors: Hayato SUMIYA, Eisuke TAKAHASHI, Nobuhisa YAMAGUCHI, Masaya TAKAHASHI, Hiroshi FUJIMOTO, Osamu SHIMIZU
  • Patent number: 11325441
    Abstract: The seat air conditioner configured to supply conditioning air to a seat in a vehicle cabin includes a refrigeration cycle, an air blower, and a conditioning air supply unit. The refrigeration cycle includes a compressor that compresses and discharges a refrigerant, a heat emitting portion that emits heat of the refrigerant discharged from the compressor to generate a warm air, a decompressor that decompresses the refrigerant flowing out of the heat emitting portion, and a heat absorbing portion that evaporates the refrigerant decompressed by the decompressor to generate a cold air. The air blower blows air to exchange heat with the refrigerant. The conditioning air supply unit supplies each of the warm air generated by the heat emitting portion and the cold air generated by the heat absorbing portion as the conditioning air to the seat.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Shigeru Kawano, Koji Ota, Aun Ota
  • Patent number: 11326545
    Abstract: An injection control device includes: a fuel injection quantity command value output unit that outputs a command value for a fuel injection quantity of a fuel injection valve; a fuel injection quantity correction unit that calculates an air-fuel correction amount and corrects the command value for the fuel injection quantity; and a controller that executes current control on the fuel injection valve. The controller executes current area correction by calculating an area correction amount for an energization time. The injection control device further includes a learning controller that stops the air-fuel learning.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Kosuke Kato, Yasumasa Ishikawa, Yohei Suganuma
  • Patent number: 11325480
    Abstract: A travel control apparatus includes a state detection unit that detects whether each of at least three power sources of the autonomous driving system including one or more electricity storage devices and one or more power generators is in a normal state or in a malfunctioning state; and a mode setting unit that sets a fail operation mode corresponding to a type of at least one of the power sources upon determination that the at least one of the power sources is in the malfunctioning state.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Tomomi Hase, Mitsuharu Higashitani, Noriaki Ikemoto
  • Patent number: 11326496
    Abstract: An ECU stores and holds in a memory unit NOx information which is information concerning NOx in an exhaust gas flowing through an exhaust system of an onboard engine of a vehicle or NOx purification by a catalyst placed in the exhaust system. The ECU includes a parameter acquisition unit that acquires an NOx parameter, which is an outflow quantity of NOx flowing out to a downstream side of the catalyst or a correlation value correlating to the outflow quantity of NOx, according to a working state of the engine, an integrated value computation unit that computes a parameter integrated value by integrating NOx parameters acquired by the parameter acquisition unit, and a storage processing unit that stores in the memory unit the parameter integrated value as the NOx information.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventor: Satoru Osaki
  • Patent number: 11327904
    Abstract: System, methods, and other embodiments described herein relate to improving security of protected values in a memory. In one embodiment, a method includes, in response to receiving a write request indicating at least an item and a write value to write into the memory, determining whether a protected items list (PIL) indicates that the item is protected. The method includes replacing the write value of the write request with a protected value from the PIL that corresponds with the item when the item is listed in the PIL as being protected. The method further includes executing the write request to the memory.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: May 10, 2022
    Assignees: Denso International America, Inc., Denso Corporation
    Inventor: David M. West
  • Patent number: 11330431
    Abstract: A system and method for a vehicle including a scanner; and an advertising device configured to: (i) exchange security information with the scanner; (ii) pair with the scanner in response to the security information of the scanner being authenticated; (iii) generate and store a target ID for the scanner in a memory of the advertising device; (iv) assign and transmit the target ID to the scanner; and (v) broadcast an advertising packet (i) exchange security information with the advertising device; (ii) pair with the advertising device in response to the security information of the advertising device being authenticated; (iii) receive and save the target ID assigned by the advertising device; (iv) receive the advertising packet containing the target ID; and (v) determine, in response to receiving the advertising packet, whether the target ID contained in the advertising packet matches the target ID of the scanner.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 10, 2022
    Assignees: DENSO International America, Inc., DENSO CORPORATION
    Inventor: Kyle Golsch
  • Patent number: 11325550
    Abstract: A positive common line and a negative common line are connected to a power source connector connected to a battery pack. First filters are provided on these two common lines, respectively. The positive common line is branched into a positive front line and a positive rear line. The negative common line is branched into a negative front line and a negative rear line. These two front lines are connected to a front power connector that is connected to a front power control unit. These two rear lines are connected to a rear power connector that is connected to a rear power control unit. It is possible to suppress electromagnetic noise on common lines.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventor: Yuki Kamiya
  • Patent number: 11326531
    Abstract: A purge control unit opens the purge control valve to supply, as purge gas to an intake passage, the evaporative fuel together with air in response to a predetermined purge request. An air-fuel ratio detection unit detects an air-fuel ratio of the internal combustion engine. A concentration learning unit estimates a fuel concentration in the purge gas based on a change in the air-fuel ratio when the purge control unit causes the purge gas to be supplied to the intake passage and to perform a fuel concentration learning to update a concentration learning value, which is a learning value of the fuel concentration in the purge gas, based on the estimated fuel concentration. An injection control unit corrects a fuel injection amount based on the concentration learning value in a period in which the concentration learning unit performs the fuel concentration learning in the lean combustion operation.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventor: Ryota Sasaki
  • Patent number: 11326538
    Abstract: An injection control device for a fuel injection valve includes: a current detection unit of the fuel injection valve; a current area correction control unit that performs current area correction for an area correction amount of an energization time to equalize the integrated current value of the energization current profile and an integrated current value of the detected current; and an information correction unit that learns and stores a reference attainment time, from a start of energization to an attainment of each of the plurality of reference currents, in a storage unit, and corrects information related to the current area correction based on a difference between the reference attainment time and an actual attainment time from the start of energization to the attainment of each reference current.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Kosuke Kato, Hiroyuki Fukuda, Yasumasa Ishikawa
  • Patent number: 11326918
    Abstract: A flowmeter is disposed in a passage through which a fluid flows. The flowmeter includes a first passage and a second passage. The first passage defines an opening through which a part of the fluid flows into the flowmeter from the passage. The second passage branches off from the first passage and includes a flow rate detector configured to detect a flow rate of the fluid flowing through the second passage from the first passage. The second passage has one end at which the second passage branches off from the first passage and the other end. The second passage includes at least one end opening at the other end and an inflow reducer configured to restrict the fluid from flowing into the second passage through the at least one end opening.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Kazuaki Ueda, Yuusuke Yoshida, Kengo Ito
  • Patent number: 11328848
    Abstract: A dust core including soft magnetic particles having pure iron or an iron alloy and a grain boundary layer present between adjacent soft magnetic particles. The grain boundary layer has a main phase and a barrier phase. The main phase having a spinel-type ferrite of a metal element. The metal element serves as a divalent cation. The barrier phase having one or more of Cu, Sn, or Co. The dust core can be obtained by using a powder for magnetic cores including soft magnetic particles coated with a film in which a first ferrite and a second ferrite coexist. The barrier phase blocks the Fe diffusion from the soft magnetic particles and suppresses the deterioration of the main phase having the second ferrite responsible for the insulating property.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Seishi Utsuno, Jung hwan Hwang, Ken Matsubara
  • Patent number: 11328464
    Abstract: A vehicular display apparatus is provided. The apparatus acquires image data of a display target object. The apparatus arranges the display target object in a virtual space based on the image data, arranges a virtual light source and a virtual viewpoint in the virtual space, and generates, as the display image, an image of the display target object viewed from the virtual viewpoint, and displays the display image with a display unit. The display target object includes an instrument with a needle and a shiny dial. The apparatus generates the display image through setting an area on the display target object as a reflection area and setting reflectance of a reflection suppression area smaller than reflectance set for the dial, where the reflection suppression area is a partial area of the dial and is set to cover places overlapping with the needle.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Masafumi Nohara, Yoshio Oofuka
  • Patent number: 11326537
    Abstract: An injection control device includes: an area correction unit that calculates an energization time correction amount when executing a current drive of a fuel injection valve to inject a fuel from the fuel injection valve; a charging circuit that applies an electric power from the charging unit to the fuel injection valve; and a charge amount determination unit for determining the charge amount of the charging unit. The area correction unit changes the area correction control based on a determination result of the charge amount determination unit.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: May 10, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yuuta Katou, Kosuke Kato, Masashi Inaba
  • Publication number: 20220134278
    Abstract: Provided is a carbon dioxide recovery system that separates CO2 from a CO2-containing gas containing CO2 by an electrochemical reaction, and comprises an electrochemical cell comprising a working electrode containing a CO2 adsorbent, and a counter electrode. Application of a voltage between the working electrode and the counter electrode causes electrons to be supplied from the counter electrode to the working electrode, and enables the CO2 adsorbent to bind to CO2 as electrons are supplied. The CO2 adsorbent is a crystalline porous body, and has a molecular structure in which a functional group that exchanges electrons and binds to CO2 is regularly arranged.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 5, 2022
    Applicants: DENSO CORPORATION, KYOTO UNIVERSITY
    Inventors: Hiroaki UMEDA, Youhei MORIMOTO, Hiroki TAKEZAKI, Satoshi HORIKE
  • Publication number: 20220140681
    Abstract: In a rotating electric machine, an armature winding includes segmented conductors that include a coil side portion, housed in slots of the armature, and a coil end portion protruding from an armature core on both sides in an axial direction. The coil side portions are housed in the slots so as to form 2N+1 layers in a radial direction. The coil end portion connects two coil side portions respectively housed in the slots that are a predetermined pitch apart in a circumferential direction. The coil end portion includes a first coil end portion connecting the coil side portions of differing layers in the radial direction and a second coil portion connecting the coil side portions of the same layer. On both ends in the axial direction, any of the plurality of coil side portions that are housed in the slots is connected to the second coil end portion.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 5, 2022
    Applicant: DENSO CORPORATION
    Inventors: Toshiaki UGA, Hiroshi KANEIWA, Akihito KOIKE, Masayoshi YAMAMOTO, Kazuya ENOKIZONO, Hiroshi ENDO