Patents Assigned to Nissan Motor
  • Patent number: 11976724
    Abstract: [PROBLEMS] When an acceleration request from a driver is large, upshift is performed under a high engine rotation speed. [SOLUTIONS] Provided is an automatic transmission, including: a torque converter that is disposed downstream of a drive source in a power transmission path and is provided with a lockup clutch; and a transmission mechanism that is disposed downstream of the torque converter and changes a speed ratio between an input shaft and an output shaft, in which in a state where the lockup clutch is engaged, when a rotation speed of the input shaft reaches a first rotation speed, the automatic transmission starts upshift, and in a state where the lockup clutch is disengaged or slips, when the rotation speed of the input shaft reaches a second rotation speed obtained by subtracting a first predetermined rotation speed from the first rotation speed, the automatic transmission starts upshift, and the first predetermined rotation speed decreases as an output torque of the drive source increases.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: May 7, 2024
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Seiichirou Takahashi, Koji Saito
  • Patent number: 11976366
    Abstract: A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: May 7, 2024
    Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori Izawa, Junichi Arai, Katsunori Otobe, Shinichi Nishimura
  • Patent number: 11977127
    Abstract: A method for detecting a faulty cell in an electric battery pack includes the following steps: measuring the no-load voltage at the terminals of each cell of the battery pack; calculating the deviation between the no-load voltage measured at the terminals of the cell and an average known no-load voltage as a function of the number of days during which the battery pack was not used; calculating the difference between the calculated deviation and a quantity n·?, n being an integer no lower than 1, and ? being a known standard deviation which is a function of the number of days during which the battery pack was not used; and detecting a faulty cell if the difference is greater than zero.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: May 7, 2024
    Assignees: Renault s.a.s., NISSAN MOTOR CO., LTD.
    Inventors: Bruno Delobel, Benoit Arsac, Masato Origuchi
  • Patent number: 11976723
    Abstract: [PROBLEMS] To reduce a sense of discomfort given to a driver due to vehicle deceleration caused by a downshift that is not intended by the driver, which is caused by a failure of a rotation speed sensor or the like. [SOLUTIONS] An automatic transmission includes: a transmission mechanism configured to shift rotation of a driving source and transmit the rotation to a driving wheel; and a clutch configured to control transmission of a torque from the driving source to the driving wheel, wherein when a change rate of a rotation speed of the driving source is equal to or higher than a predetermined change rate, a torque transmission capacity of the clutch is reduced.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: May 7, 2024
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Kazue Shimokawara
  • Patent number: 11976719
    Abstract: A transmission, includes a transmission mechanism including a torque converter having a lock-up clutch; an oil pump configured to discharge an oil to be supplied to the transmission mechanism; a lock-up oil pressure control valve configured to adjust a pressure of the oil discharged from the oil pump and supply the oil to the lock-up clutch; a lubricating oil pressure control valve configured to adjust the pressure of the oil discharged from the oil pump and supply the oil to a portion to be lubricated of the transmission mechanism; and a controller configured to control the lock-up oil pressure control valve.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: May 7, 2024
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Takeaki Ishibashi, Tomohiro Inoue, Sho Kowatari
  • Patent number: 11975601
    Abstract: A floor structure of an electric vehicle floor structure includes a battery unit and an underfloor panel. The battery unit is arranged underneath a floor of a passenger compartment between front wheels and rear wheels. The underfloor panel covers an entire bottom surface of the battery unit from below. The underfloor panel is provided with a center panel and a surrounding panel. The center panel has a noise absorption material that arranged at a lateral-direction center and a longitudinal-direction center of the underfloor panel. The surrounding panel has a high-strength material arranged around the center panel.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 7, 2024
    Assignees: Nissan Motor Co., Ltd., Renault S.A.S.
    Inventors: Hiroaki Nabuchi, Hiroki Eida, Yuji Okamoto, Shinya Akizuki, Tatsuya Imashioya, Ryuki Maeta
  • Publication number: 20240145698
    Abstract: An all-solid-state battery (ASSB) cell has an anode comprising lithium metal, a solid electrolyte, and a cathode composite layer comprising cathode active material particles. Each cathode active material particle has a core of a first lithium transition metal oxide and a surface layer of a second lithium transition metal oxide, the second lithium transition metal oxide being different from the first lithium transition metal oxide. The second lithium transition metal oxide has a composition of LiNixMnyCozO2, wherein 0.40?x?0.82, 0.0?y?0.50, and 0.0?z?0.60 and x+y+z=1.
    Type: Application
    Filed: November 1, 2022
    Publication date: May 2, 2024
    Applicants: Nissan North America, Inc., Nissan Motor Co., Ltd.
    Inventors: Hideyuki Komatsu, Shigemasa Kuwata, Balachandran Gadaguntla Radhakrishnan, Kazuyuki Sakamoto
  • Publication number: 20240141985
    Abstract: In a vehicle control device for controlling the vehicle, when automatic downshift control for automatically downshifting a speed ratio of the transmission is executed in the case where a drive current value of the motor obtained when the second oil pump is driven is larger than a maximum value of the drive current value of the motor obtained when the second oil pump is driven in a normal drive state, the vehicle control device increases a minimum rotation speed of the drive source compared to a case where the drive current value of the motor is equal to or less than the maximum value, and when the automatic downshift control is executed in the case where a line pressure generated by a hydraulic pressure supplied from the first oil pump and the second oil pump is larger than a predetermined value, the vehicle control device does not increase the minimum rotation speed of the drive source even in the case where the drive current value of the motor obtained when the second oil pump is driven is larger than the m
    Type: Application
    Filed: February 25, 2022
    Publication date: May 2, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Tarou MURAZUMI, Hajime TASAKA, Keisuke IWADO, Hiroyuki TOKOI, Yuji OISHI
  • Patent number: 11971327
    Abstract: A blowby gas treatment device includes a pressure control valve, a fresh air induction pipe, a first blowby gas pipe, a second blowby gas pipe, a shutoff valve, a one-way valve, and a PCV valve. A leak diagnosis includes a first-stage diagnosis to determine whether or not falling of a pressure in a crank case after closing of the shutoff valve under a non-supercharging condition is normal. A second-stage diagnosis is implemented by using an air fuel ratio feedback control, and determining whether or not a sensed intake air quantity obtained by an air flow meter is equal to an actual intake air quantity flowing into a cylinder set. When the sensed intake air quantity is equal to the actual intake air quantity, presence of an in-system leak is determined, and when the actual intake air quantity is larger, presence of an out-of-system leak is determined.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: April 30, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Toshihiro Yamagata, Akihito Takahashi, Shimpei Yamashita
  • Patent number: 11973135
    Abstract: A semiconductor device includes a main groove formed in a main surface of a substrate, a semiconductor region formed in contact with a surface of the main groove, an electron supply region formed in contact with a surface of the semiconductor region on opposite sides of at least side surfaces of the main groove to generate a two-dimensional electron gas layer in the semiconductor region, and a first electrode and a second electrode formed in contact with the two-dimensional electron gas layer and apart from each other.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 30, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Keisuke Takemoto, Tetsuya Hayashi, Wei Ni, Toshiharu Marui, Ryouta Tanaka, Shigeharu Yamagami
  • Patent number: 11973108
    Abstract: A semiconductor device includes: a drift region that is arranged on a main surface of a substrate, and has a higher impurity concentration than the substrate; a first well region that is connected to the drift region; and a second well region that is arranged adjacent to the first well region and faces the drift region. The second well region has a higher impurity concentration than the first well region. A distance between the source region that faces the drift region via the first well region and the drift region is greater than a distance between the second well region and the drift region, in a direction parallel to the main surface of the substrate. A depletion layer extending from the second well region reaches the drift region.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: April 30, 2024
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.
    Inventors: Wei Ni, Tetsuya Hayashi, Keiichiro Numakura, Toshiharu Marui, Ryouta Tanaka, Yuichi Iwasaki
  • Publication number: 20240133463
    Abstract: Provided is a control device for a vehicle including a first oil pump that is driven by a first drive source driving a drive wheel of a vehicle and configured to supply oil to a hydraulic pressure actuation machine, and a second oil pump that is driven by a second drive source different from the first drive source and configured to supply oil to the hydraulic pressure actuation machine. The control device drives the second oil pump when a start switch of the vehicle is turned on and the first drive source is started for the first time, and drives the second oil pump when the second oil pump is not driven for a first predetermined time after the first drive source is started, and a rotation speed of the second oil pump when the first drive source is started is lower than a rotation speed of the second oil pump after the first drive source is started.
    Type: Application
    Filed: February 16, 2022
    Publication date: April 25, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Koichi OKUNO, Keisuke IWADO, Makoto OGURI
  • Publication number: 20240136891
    Abstract: A component comprising: a first case portion having a tunnel portion having an opening end opening toward an axial direction; and a second case portion having a catch tank portion opening upward, wherein the first case portion and the second case portion face each other such that a bottom portion of the tunnel portion and a bottom portion of the catch tank portion are coupled to each other, an opening area of the opening end of the tunnel portion on the second case portion side is larger than an opening area of the opening end of the tunnel portion on a side opposite to the second case portion side, the tunnel portion as a whole is inclined downward from the second case portion side of the tunnel portion to the side opposite to the second case portion side of the tunnel portion, and the second case portion side of the tunnel portion is inclined downward toward the catch tank portion.
    Type: Application
    Filed: February 28, 2022
    Publication date: April 25, 2024
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Yuuki TANAKA, Yutaka OKUMURA, Yusuke SUZUKI, Yojiro MOCHIZUKI
  • Patent number: 11965593
    Abstract: A hydraulic control circuit includes a pressure regulator valve, a first pilot valve, a second pilot valve, and a third pilot valve. A first pilot pressure is introduced as a source pressure into the primary solenoid valve that generates a primary signal pressure and a secondary solenoid valve that generates a secondary signal pressure. A second pilot pressure is introduced as a source pressure into a lock-up solenoid valve that generates the lock-up signal pressure. A third pilot pressure is introduced as a damping pressure into a primary regulator valve that controls a primary pulley pressure according to the primary signal pressure, and into a secondary regulator valve that controls a secondary pulley pressure according to the secondary signal pressure.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: April 23, 2024
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventor: Hisao Nobu
  • Patent number: 11965252
    Abstract: The present invention provides a thermally sprayed coating that is a thermally sprayed iron-based coating formed on an inner circumferential surface of a cylinder bore of an aluminum or aluminum alloy cylinder block. The thermally sprayed coating has a plastic deformation part on its surface. Thus, pores on the surface of the thermally sprayed coating are reduced, resulting in a reduction in the amount of oil consumption.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: April 23, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Hayato Hirayama, Tsuyoshi Higuchi, Yoshito Utsumi
  • Patent number: 11964548
    Abstract: A vehicle is disclosed that includes: a vehicle body defining a door frame; a vehicle door that is movably connected to the vehicle body; and an actuation system. The vehicle door includes: an inner panel that is secured to the door frame; an outer panel that is secured to the inner panel; a reinforcement that is secured between the inner panel and the outer panel; and a support bracket that is secured to the reinforcement and which includes a body with a generally planar configuration. In contrast to the door frame, which includes a metallic material, the inner panel and the outer panel each include a non-metallic material. The actuation system is connected to the vehicle door to facilitate opening and closure thereof and extends through the reinforcement and the support bracket.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignees: Nissan North America, Inc., Nissan Motor Co., Ltd.
    Inventors: James Haupt, Richard Dryja, Masayuki Onodera
  • Patent number: 11964668
    Abstract: A travel control method for a vehicle for executing autonomous travel control includes, prior to executing the autonomous travel control, presenting a driver with travel control information as to whether or not to accept execution of the autonomous travel control and detecting, in response to a presentation of the travel control information, an acceptance input made by the driver indicating that the driver accepts the execution of the autonomous travel control. The travel control method also includes: setting an input form of a present acceptance input by the driver to an input form different from an input form of a previous acceptance input.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: April 23, 2024
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Takahiko Oki
  • Publication number: 20240124055
    Abstract: A method automatically controls a motor vehicle with wheels including at least two steered wheels. The method includes the following steps: the motor vehicle acquiring parameters relating to an obstacle avoidance trajectory, and a computer computing a provisional control instruction for an actuator for braking the steered wheels, based on the parameters and by way of a closed-loop controller. The method also includes the following steps: acquiring a lateral acceleration or a roll angle to which the motor vehicle is subject, and computing, in open-loop mode, a correction term or the provisional control instruction, based on the acquired lateral acceleration or roll angle.
    Type: Application
    Filed: January 20, 2022
    Publication date: April 18, 2024
    Applicants: RENAULT S.A.S., NISSAN MOTOR CO., LTD.
    Inventor: Anh-Lam DO
  • Patent number: 11961342
    Abstract: A driving assistance device includes a malfunction detection unit configured to detect a plurality of malfunctions in devices mounted on a vehicle, a candidate selection unit configured to select candidates for a plurality of actions urged on a driver in accordance with the plural malfunctions detected by the malfunction detection unit, a priority determination unit configured to choose a candidate having a higher priority as an action urged on the driver from the candidates for the plural actions selected by the candidate selection unit, and an information unit configured to inform the driver of the action to be urged on the driver chosen by the priority determination unit.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 16, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Kazuki Iijima, Yuki Fujita
  • Patent number: D1024862
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: April 30, 2024
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kyusik Moon, Yukiharu Sai