Patents Assigned to AMPERE S.A.S.
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Publication number: 20260159081Abstract: A method is for steering a motor vehicle driving on a road having at least one traffic lane. The method includes detecting the edges of the traffic lane of the motor vehicle, selecting, by a computer of the motor vehicle, an activated or deactivated state of a function for automatically keeping the motor vehicle in the traffic lane, and when the activated state is selected, controlling at least one steering actuator of the motor vehicle in order to keep it in the traffic lane. As part of the detecting, a width of the traffic lane is evaluated. As part of the selecting, the state of the function for automatically keeping the motor vehicle in the traffic lane is selected depending on the evaluated width.Type: ApplicationFiled: November 7, 2023Publication date: June 11, 2026Applicant: AMPERE S.A.S.Inventors: Luc BROSSARD, Pedro KVIESKA
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Patent number: 12647004Abstract: A method for manufacturing a stator of an axial flow electric machine includes cutting slots on a lateral part of a strip of sheet metal, cutting recesses on an opposite lateral part of the strip to form coolant flow channels, winding the strip according to a radial stack, the recesses being cut by a double perforation symmetrical to a line orthogonal to the length of the strip, the recesses being cut on a first radial periphery of the stator winding at a distance from the radial section of the stator passing through the line, until they meet on the radial section at an opposite radial periphery of the stator winding, forming V-shaped channels meeting at the ends of the legs of the V's during the winding.Type: GrantFiled: August 4, 2021Date of Patent: June 2, 2026Assignee: AMPERE S.A.S.Inventor: Jere Kolehmainen
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Patent number: 12647007Abstract: Disclosed is a method for assembling a magnetic pole element for a rotor for an axial flow electric machine, the rotor including a body in the form of a disk having at least one housing, the magnetic pole element including a plurality of single magnets, the method including the following steps: e1) forming a first row of at least two single magnets and retaining the single magnets using a strip of adhesive material; e2) placing the first row on a support having a curvature that is equal or substantially equal to the curvature of a peripheral edge of the housing; e3) forming another row of at least two other single magnets and retaining the single magnets using another adhesive material strip; e4) placing the other row on the first row; and e5) repeating steps e3) and e4) until the magnetic pole element is assembled.Type: GrantFiled: July 20, 2021Date of Patent: June 2, 2026Assignees: AMPERE S.A.S., WHYLOTInventors: Jere Kolehmainen, Loic Mayeur
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Publication number: 20260145558Abstract: A device and method for controlling a bidirectional charger including a bidirectional AC-DC converter connected by a DC bus to a bidirectional DC-DC converter, the charger being connected both to an electric battery and to an AC electrical network, the charger being designed to operate by charging and discharging the battery. An electrical system that includes the bidirectional charger, and also an electric motor vehicle that includes the electrical system.Type: ApplicationFiled: July 4, 2023Publication date: May 28, 2026Applicant: AMPERE S.A.S.Inventors: Houssein AL-ATTAR, Malek GHANES, Mohamed HAMIDA, Miassa TALEB
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Publication number: 20260131767Abstract: A parking brake device is suitable for being installed in a casing of an electric machine that houses a rotary shaft and at least one rolling bearing for guiding the rotary shaft. The parking brake device includes an annular support suitable for being inserted between the rolling bearing and the casing, an annular sliding gear which is mounted so as to slide on the support between two end positions, which is locked against rotation on the support, and which has dog clutches suitable for engaging a notched wheel coupled to the rotary shaft, and an actuator suitable for moving the sliding gear between its two end positions.Type: ApplicationFiled: October 5, 2023Publication date: May 14, 2026Applicant: AMPERE S.A.S.Inventor: Eric DUMAS
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Patent number: 12627011Abstract: A system for protecting a device having variable internal resistance includes a protection fuse capable of blowing when a current having an intensity greater than an intensity threshold passes through. The system also includes an estimator suitable for estimating the internal resistance of the device, and a safety device suitable for limiting and/or preventing use of the device when the internal resistance is greater than a resistance threshold beyond which the protection fuse is inoperative.Type: GrantFiled: September 8, 2020Date of Patent: May 12, 2026Assignee: Ampere S.A.S.Inventors: Samuel Cregut, Masato Origuchi, Irina Marincas, Antoine Saint-Marcoux
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Patent number: 12623658Abstract: A method is for detecting the route taken by a motor vehicle in a particular zone within which the number of lanes increases or decreases. The method includes recording position data characterizing the position of the motor vehicle in relation to the lane separation lines marked on the road and calculating, via a recurrent neural network, at least one parameter for the detection of the particular zone, the recorded position data being supplied as input to the recurrent neural network.Type: GrantFiled: November 24, 2022Date of Patent: May 12, 2026Assignee: AMPERE S.A.S.Inventors: Renaud Deborne, Raphael Quilliard
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Publication number: 20260116181Abstract: A method for controlling an access panel to a recharging device of a motor vehicle powered by an electric and/or heat engine and including a sensor for detecting an external environment of the vehicle, a system for detecting a badge worn by a user and a sensor configured to detect whether the engine of the vehicle is switched off. In the method, data are recovered, the system for detecting a badge worn by the user and the sensor configured to detect whether the engine of the motor vehicle is switched off, when the vehicle is stationary and the badge is detected by the badge detection system, the sensor for detecting the external environment of the vehicle and a system for recognizing a charger of the recharging device are activated, and when the charger is detected, the panel is automatically opened in a position allowing access to the recharging device.Type: ApplicationFiled: June 27, 2023Publication date: April 30, 2026Applicant: AMPERE S.A.S.Inventors: Khalid KHETARI, Eric MINSSEN
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Patent number: 12614937Abstract: Disclosed is an element with magnetic poles for the rotor of an axial flux electric machine, including an assembly of several individual magnets and a flange, at least a first part of which surrounds the assembly in order to immobilise the individual magnets in position. At least one part of the flange is made from a material including a mixture of polymer and magnet powder.Type: GrantFiled: December 14, 2021Date of Patent: April 28, 2026Assignees: AMPERE S.A.S., WHYLOTInventor: Jere Kolehmainen
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Patent number: 12603326Abstract: A solid lithium cell is formed by stacking an etched copper substrate, a layer of graphite, an electrolyte, and a layer of nickel, manganese, and cobalt oxides. The electrolyte is in contact with the graphite layer and the layer of nickel, manganese, and cobalt oxides. The copper substrate forms the anode of the cell. The layer of nickel, manganese and cobalt oxides forms the cathode of the cell. The electrolyte is a solid lithium-based electrolyte. The graphite layer has a first solid electrolyte interface produced during a pre-lithiation with a liquid lithium-based electrolyte and a second solid electrolyte interface produced during a pre-lithiation with the solid lithium-based electrolyte.Type: GrantFiled: July 6, 2021Date of Patent: April 14, 2026Assignee: AMPERE S.A.S.Inventors: Mohamed Chakir, Akhil Dileep, Balaji Kalyanarangan, Madhumithaa Murali-A, Jayanth-Ramaswami Ramamurthy, Konda-Shiva Reddy
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Patent number: 12583476Abstract: A method controls an autonomous vehicle equipped with at least one perception unit and a first map including stored digital data representing the actual infrastructure of the environment of the autonomous vehicle. The method includes defining a first trajectory of the autonomous vehicle and a first associated kinematic profile, detecting, from data transmitted by the perception unit, a situation to be optimized on a given segment of the first trajectory located in front of the autonomous vehicle, optimizing at least one element from the first map and the first kinematic profile, optimizing the first map including determining a local map on the given segment, and/or optimizing the first kinematic profile including a determination of a second kinematic profile associated with the given segment, and controlling the displacement of the autonomous vehicle over the given segment taking into account the local map and/or the second kinematic profile.Type: GrantFiled: April 29, 2022Date of Patent: March 24, 2026Assignee: AMPERE S.A.S.Inventors: Nievsabel Molina Ramos, Vicente Milanes, David Gonzalez Bautista, Irene Cortes Lafuente, Armando Astudillo Olalla
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Publication number: 20260081055Abstract: An insulation device for a busbar includes a support and at least one cover made of electrically insulating material and attached to the support. The at least one cover is slidably mounted on the support by at least one guide member.Type: ApplicationFiled: July 5, 2023Publication date: March 19, 2026Applicant: AMPERE S.A.S.Inventors: Julien BORIE, Fabien GAUTIER
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Patent number: 12573627Abstract: A process for preparing a compound of formula (NaOH)x[Fe(OH)2]yFeS, may include: (a) mixing iron and sodium sulfide in equimolar amounts, in an NaOH aqueous solution; (b) heating the obtained mixture up to a temperature in a range of from 110 to 210° C. for a duration in a range of from 1 hour to 1 week; and (c) recovering the active material by filtering and drying in a neutral atmosphere.Type: GrantFiled: September 21, 2022Date of Patent: March 10, 2026Assignees: AMPERE S.A.S., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Ecole Nationale Supérieure de Chimie de ParisInventors: Philippe Barboux, Mohamed Chakir, Domitille Giaume, Ine Haugland-Gosling, Caroline Mir
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Publication number: 20260058520Abstract: An assembly for an electric machine includes a casing made of conductive material and connected to a reference potential, a rotor having an axis of rotation, and an electrically conductive connecting element that is in electric contact with the casing and with an electrically conductive part of the rotor.Type: ApplicationFiled: March 28, 2023Publication date: February 26, 2026Applicant: AMPERE S.A.S.Inventor: Eric DUMAS
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Patent number: 12559094Abstract: A method for object avoidance by a motor vehicle includes: detecting objects located in the surroundings of the motor vehicle; acquiring data characterizing the position and/or dynamics of each object, then, if several objects have been detected; verifying whether at least one criterion of proximity between at least two of the detected objects is met and, if so; combining the two objects into one group; calculating the data characterizing the position and/or dynamics of the group; and activating a system for obstacle avoidance and/or determining an avoidance trajectory, according to the data characterizing the position and/or dynamics of the group.Type: GrantFiled: February 3, 2022Date of Patent: February 24, 2026Assignee: AMPERE S.A.S.Inventors: Geoffrey Bruno, Anh-Lam Do, Marouane Lehim
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Patent number: 12559179Abstract: A strut cross-member of a motor vehicle includes a central part and two side ends. Each of the ends includes an interface for attachment to the body of the vehicle and an interface for attachment to shock absorber cups. The cross-member is made of cast aluminum.Type: GrantFiled: September 28, 2021Date of Patent: February 24, 2026Assignees: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventors: Julien Carrie, Luis De Almeida, Edouard Girault
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Patent number: 12559093Abstract: A method triggers an obstacle avoidance system. The method includes detecting at least one object forming a potential obstacle, determining the time remaining until the motor vehicle strikes the object, determining a path deviation to be performed to avoid the object, and activating the avoidance system according to the values of the parameter and each path deviation. The determination step includes calculating the difference between the lateral speed of the motor vehicle relative to the road in a reference frame oriented in accordance with the road at the motor vehicle, and the lateral speed of the object relative to the road in a reference frame oriented in accordance with the road at the object, and determining each path deviation according to the difference.Type: GrantFiled: January 26, 2022Date of Patent: February 24, 2026Assignees: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventors: Geoffrey Bruno, Clement Coste, Anh-Lam Do, Henri Manuel Filipe, Marouane Lehim, Khoa Duc Nguyen
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Patent number: 12552378Abstract: A method for determining a speed profile to be followed by a vehicle, including acquiring event data including a distance from an event and a target speed at this event for the vehicle, and determining a speed profile to be followed as a function of time, between an initial speed and the target speed in three successive distinct phases, respectively a first phase in which the jerk is set constant at a predetermined maximum jerk value to reach an optimal target acceleration value, a second phase in which the optimal target acceleration value is kept constant, and a third phase in which the jerk is again set constant to reach a zero acceleration value at the end of the third phase. The optimal target acceleration value is such that the distance required to carry out the three phases of the profile is equal to the distance from the event.Type: GrantFiled: November 30, 2020Date of Patent: February 17, 2026Assignees: Ampere s.a.s., NISSAN Motor Co., Ltd.Inventors: Francois Bordelais, Vakanga Fadiga, Maud Peyret
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Patent number: 12539911Abstract: A method is for autonomously driving an actuator of an automotive device. The actuator is intended to have an influence on the trajectory of the device. The method includes acquiring parameters relating to the trajectory of the device and a computer calculating a setpoint for driving the actuator as a function of the parameters via a controller associated with at least one saturation function for an output of the controller. The controller satisfies a model of the at least one saturation function per nonlinear sector.Type: GrantFiled: March 9, 2022Date of Patent: February 3, 2026Assignees: AMPERE S.A.S., NISSAN MOTOR CO., LTD.Inventor: Anh-Lam Do
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Publication number: 20260031457Abstract: An electrical energy storage assembly includes at least two electrical structure elements and at least one cold plate intended to exchange heat energy with at least one electrical structure element. Further, a belt casing and two caps define a cavity to house the electrical structure elements and, at least partially, a cooling structure including two cold plates fixed to respective peripheral edges of the belt casing axially opposite one another. A tier of electrical structure elements is fixed to an internal face of each cold plate and housed in the volume defined by the belt casing. The two tiers of electrical structure elements housed in the belt casing being arranged facing one another with an axial clearance formed between them.Type: ApplicationFiled: March 17, 2023Publication date: January 29, 2026Applicant: AMPERE S.A.S.Inventors: Jonathan DENNERY, Sébastien FURET, Yohann HYRON