Patents Assigned to Nissan Motor Co., Ltd.
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Publication number: 20250145021Abstract: A torque distribution control method for an electric vehicle that performs torque distribution control for a plurality of driving wheels, the torque distribution control method including calculating a torque distribution value of any one of the plurality of driving wheels based on a first parameter, and calculating a correction value for the torque distribution value based on a deviation between an actual value and a target value of a second parameter, and correcting the torque distribution value with the calculated correction value, wherein the correction value is limited based on the torque distribution value.Type: ApplicationFiled: February 2, 2022Publication date: May 8, 2025Applicant: NISSAN MOTOR CO., LTD.Inventors: Masahiro ISHIJIMA, Daisuke HIROI, Akihiro TERAO, Kouki SAITOU
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Publication number: 20250149999Abstract: A flying capacitor device, such as an inverter arm or a boost converter, includes a plurality of N switching cells which are nested in one another and a balancing circuit which is adapted to have a resonant frequency equal to the switching frequency of the transistors. The balancing circuit is connected, on the one hand, at a midpoint and at a terminal of a capacitor of the last cell.Type: ApplicationFiled: January 25, 2023Publication date: May 8, 2025Applicants: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventor: Serge LOUDOT
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Publication number: 20250145097Abstract: In a voice recognition method in which utterance content of a user of a vehicle is acquired and a target constituent object that is a constituent object mentioned in the utterance content among a plurality of constituent objects constituting the vehicle is estimated, a mentioned position that is a position mentioned in the utterance content is identified based on the utterance content, and with reference to a storage device storing constituent object positions each of which is a position at which one of the plurality of constituent objects is installed or a learning model that has learned the constituent object positions, a constituent object that is installed at a constituent object position matching the identified mentioned position is estimated as a target constituent object.Type: ApplicationFiled: January 26, 2022Publication date: May 8, 2025Applicants: Nissan Motor Co., Ltd., RENAULT S.A.S.Inventor: Atsunobu Kaminuma
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Publication number: 20250147109Abstract: A management system and method enables a more suitable estimation of the voltage of the cells connected to an interconnection bar so as to optimize the durability and operation of the performance of the processing device.Type: ApplicationFiled: December 12, 2022Publication date: May 8, 2025Applicants: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventors: Laila GUISSI, Rayan HADJ-HAMOU, Jana KALAWOUN, Nicolas VAFLARD
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Patent number: 12293590Abstract: A processor determines whether a construction related item has been detected or not ahead of a subject vehicle based on vehicle surrounding information obtained by a sensor and determines that a point separated by a predetermined distance ahead of the subject vehicle from the construction related item is an end point of the road construction section when determining that the construction related item has been detected. The predetermined distance when the construction related item is detected and another vehicle is not detected around the detected construction related item is shorter than the predetermined distance when the construction related item is detected and the other vehicle is detected around the detected construction related item.Type: GrantFiled: February 14, 2022Date of Patent: May 6, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Masahiro Okawara, Yasuhisa Taira, Kazuyuki Uwabo
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Patent number: 12291124Abstract: A method for estimating the charge state of a battery includes initializing the charge state, including estimating an initial charge state value. The initializing includes: receiving a stored charge state value for a sleep mode time of the battery, computing a charge state value from a measurement of the no-load voltage at the terminals of the battery at a wake-up time of the battery, and computing an error in the measurement of the no-load voltage due to the relaxation of the battery. The error is computed as a function of the current temperature of the battery and of a target relaxation duration modelled for each temperature. The initial value of the charge state is computed based on a comparison between the recorded and computed charge state values and as a function of the error.Type: GrantFiled: March 24, 2020Date of Patent: May 6, 2025Assignees: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventors: Driemeyer Franco Ana-Lucia, Akram Eddahech
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Patent number: 12292294Abstract: A vehicle travel route control system controls a plurality of vehicles having an autonomous driving function or a driving assist function, wherein a vehicle dispatch information data server creates a travel route map, in which driving mode switching position at which vehicles have switched over during travel to the manual driving mode from the autonomous driving mode, have been added to a road map. Based on the travel route map, a travel route that avoids the driving mode switching position is calculated from among a plurality of routes on which a dispatch vehicle candidate travels to a destination via user position. When a travel route that avoids the driving mode switching position is calculated, a dispatch vehicle candidate is set as a dispatch vehicle, and the calculated travel route information is transmitted to an on-board unit mounted in the dispatch vehicle.Type: GrantFiled: March 13, 2020Date of Patent: May 6, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Masayasu Suzuki, Masahide Nakamura, Masaki Watanabe, Daisuke Saito
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Patent number: 12294242Abstract: A cooling system cools an electric machine including a casing, a rotor rotatably supported by the casing, and a stator fixed to the casing. The cooling system includes a flow circuit that brings a cooling liquid into contact with active parts of the electric machine. A main reservoir is provided in a lower portion of the casing. A pump injects the cooling liquid into the flow circuit. The level of cooling liquid in the casing interfaces with a lower portion of the rotor when the pump stops. A controller controls the pump to stop the pump when a temperature of the cooling liquid is below a given threshold, and start the pump as soon as the temperature of the liquid reaches the threshold such that the liquid is drawn by the main reservoir pump towards a secondary reservoir to lower the level of cooling liquid in the casing.Type: GrantFiled: September 21, 2022Date of Patent: May 6, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Bassel Assaad, Edouard Negre
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Patent number: 12291106Abstract: A method for controlling an electric vehicle driven by a plurality of electric motors including a first electric motor, in which a lubricant, which is used for lubricating the electric motors and power transmission systems therefor, is used for cooling the electric motors is provided. The method includes setting torque distributions for the plurality of electric motors on the basis of a driving force required by the electric vehicle controlling the drive of the plurality of electric motors on the basis of the set torque distributions and circulating intermittently the lubricant used for cooling the first electric motor when the torque distribution set for the first electric motor is smaller than a predetermined value which is regarded as a reference value.Type: GrantFiled: February 26, 2020Date of Patent: May 6, 2025Assignee: NISSAN MOTOR CO., LTD.Inventors: Tomoyuki Manabe, Yukinori Tsukamoto
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Patent number: 12292305Abstract: A lane recognition method and a lane recognition device operate such that when a travel lane of a vehicle is recognized by performing cross-check between first boundary information about a boundary dividing lanes acquired from map information and second boundary information about the boundary dividing the lanes acquired from a detection device of the vehicle, a movable center line is detected from at least one of the first boundary information and the second boundary information. The movable center line is a center line that can move in a width direction of a road on which the vehicle travels. When the movable center line is detected, the cross-check between the first boundary information and the second boundary information is not performed on one of a right side and a left side of the vehicle on which the movable center line is detected.Type: GrantFiled: February 21, 2022Date of Patent: May 6, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Takahiro Nojiri, Katsuhiko Degawa, Yohei Taniguchi, Kazuyuki Uwabo, Yuji Nagasawa, Hirotaka Kamimura
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Patent number: 12293387Abstract: An information processing device includes a database, an acquisition unit, a specification unit, a movement plan unit, and a transmission unit. The database stores providers providing a user with experiences and provision places where the providers allow providing the experiences while associating one another. The acquisition unit is configured to acquire experience desire data relating to an experience that the user desires. The specification unit is configured to specify, based on the data stored in the database and the experience desire data, an experience provider being a provider capable of providing the experience that the user desires and the provision place. The movement plan unit is configured to specify the provision place specified by the specification unit as a destination of the user, and generate a movement plan for the user to move to the destination.Type: GrantFiled: April 28, 2021Date of Patent: May 6, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Takehiro Miyoshi, Kotaro Chiba, Xiaoxiao Fei
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Publication number: 20250136124Abstract: A method autonomously controls at least one actuator of an automotive device. The actuator has an influence on the trajectory of the automotive device. The method includes acquiring parameters relating to the trajectory of the automotive device and to the speed of the automotive device, and having a computer calculate a control setpoint for each actuator, as a function of the parameters, using a controller. The controller used varies according to the speed of the vehicle.Type: ApplicationFiled: August 19, 2022Publication date: May 1, 2025Applicants: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventor: Anh-Lam DO
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Publication number: 20250136189Abstract: A hood for a vehicle includes an outer panel that is made of metal and is convex upwardly, an inner panel that is made of metal and is disposed beneath the outer panel, and at least one wall member that is made of plastic and connects a bottom face of the outer panel to a top face of the inner panel. A width of a cross-bridge portion of the inner panel in a longitudinal direction of the vehicle is smaller than a length of the outer panel in the longitudinal direction. The cross-bridge portion extends straight in a lateral direction of the vehicle and is located beneath a front portion of the outer panel, and both ends thereof are joined to both side edges of the outer panel, respectively.Type: ApplicationFiled: February 15, 2022Publication date: May 1, 2025Applicant: NISSAN MOTOR CO., LTD.Inventors: Shinichiro TAKEMOTO, Amane SHIMOJI
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Publication number: 20250139148Abstract: An information processing system includes an agent device and an information processing device. The agent device has an agent function. The information processing device generates dialogue sentence data for a user. The information processing system outputs the generated dialogue sentence data to the user using the agent function. The information processing device includes: a load estimation unit that estimates a load when the user recognizes the dialogue sentence data; and a data generation unit that generates the dialogue sentence data using response sentence information classified into positive sentences and negative sentences. When the load of the user is relatively high, the data generation unit increases a proportion of the positive sentences used in the dialogue sentence data as compared to when the load of the user is relatively low.Type: ApplicationFiled: September 6, 2021Publication date: May 1, 2025Applicants: Nissan Motor Co., Ltd., RENAULT S.A.S.Inventors: Yoshinori Kusayanagi, Takura Yanagi, Saori Ono, Miyuki Shigeta
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Publication number: 20250140886Abstract: The present invention provides an electrochemical cell wherein: a pair of electrodes are connected by the intermediary of a solid electrolyte; and at least one of the electrodes is supported by a metal support. The solid electrolyte is configured as a dense ion conductive layer; at least one of the electrodes is configured as a porous ion conductive layer that has oxygen ion conductivity; and the metal support is configured as a porous electron conductive layer that supports the porous ion conductive layer. In addition, a porous oxidation prevention layer is arranged between the porous ion conductive layer and the porous electron conductive layer; and a catalyst material is loaded such that the porous ion conductive layer, the porous oxidation prevention layer and the porous electron conductive layer are connected.Type: ApplicationFiled: February 3, 2022Publication date: May 1, 2025Applicant: NISSAN MOTOR CO., LTD.Inventor: Yutaro MIYOSHI
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Patent number: 12286006Abstract: A mounting structure for an electrical device includes a vehicle electrical device and a supporting member which supports the electrical device. The supporting member includes: a body portion to which the electrical device is supported and fixed; and a front extension portion extending from the body portion toward a vehicle front side further than an end portion of the electrical device at a vehicle front side. The body portion and an end portion of the front extension portion at the vehicle front side are fixed to the vehicle body floor, and a rigidity of the front extension portion in a vehicle front-rear direction is lower than a rigidity of the body portion in the vehicle front-rear direction.Type: GrantFiled: December 10, 2021Date of Patent: April 29, 2025Assignee: NISSAN MOTOR CO., LTD.Inventor: Takayuki Shimoda
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Patent number: 12286910Abstract: An oil structure of an internal combustion engine includes a main oil pump configured to suck lubricating oil stored in a crankcase and feed the lubricating oil to respective engine parts and a scavenge pump configured to recover the lubricating oil from any lubricated engine part and return the lubricating oil into the crankcase. The scavenge pump has: an oil suction passage extending from the lubricated engine part to a suction side of the scavenge pump; and an air introduction passage for negative pressure control connected to the oil suction passage. An air introduction port of the air introduction passage is open to the inside of the crankcase and is set to a height position such that, when a level of the lubricating oil in the crankcase is inclined, the lubricating oil flows in from the air introduction port and returns from the scavenge pump into the crankcase.Type: GrantFiled: February 15, 2023Date of Patent: April 29, 2025Assignee: NISSAN MOTOR CO., LTD.Inventor: Shimpei Yamashita
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Patent number: 12286075Abstract: A vehicle control method and a vehicle control device are configured to control the movement of a vehicle based on operation of a terminal device located outside the vehicle. The vehicle receives from the terminal device a first signal indicating that a first button of the terminal device has been pressed. The vehicle doors are unlocked based on the reception of the first signal, and the vehicle is placed in a state in which movement control is permitted.Type: GrantFiled: May 28, 2021Date of Patent: April 29, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Junya Kobayashi, Yasuhiro Sakurai, Yasuhiro Suzuki, Yoshitsugu Takafuji
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Patent number: 12289028Abstract: A rotating electric machine includes a tube-shaped outer housing and a tube-shaped inner housing that forms a coolant flow channel between the outer housing and the inner housing. The inner housing is fixed with the outer housing by press-fitting or shrink-fitting at one end thereof in its axial direction and fastened with the outer housing at another end by plural bolts. One or more non-contacting sections, in which an inner circumferential surface of the outer housing and an outer circumferential surface of the inner housing are not in contact with each other, are formed at a fixation portion made by the press-fitting or the shrink-fitting between the outer housing and the inner housing along a circumferential direction thereof.Type: GrantFiled: February 20, 2020Date of Patent: April 29, 2025Assignee: NISSAN MOTOR CO., LTD.Inventor: Takuma Kinoto
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Patent number: 12286093Abstract: A vehicle control system increases the travel distance of a vehicle by inhibiting reduction in the SOC of a battery even when the output of an engine is limited. The control system is characterized by comprising: an electric motor that drives a vehicle: an engine that drives a power generator that generates electric power to be supplied to the electric motor; a battery that is configured to be chargeable by the power generator and that is electrically connected to the electric motor; and a controller that controls the electric motor.Type: GrantFiled: July 28, 2020Date of Patent: April 29, 2025Assignee: Nissan Motor Co., Ltd.Inventors: Ryo Onogawa, Azusa Kobayashi, Yoshihiro Terai