Patents by Inventor Arnaud BOUCHET
Arnaud BOUCHET has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240039432Abstract: A method for magnetic braking of a steering column included in a steering system of a vehicle to facilitate installation and uninstallation of the driver in the vehicle and to protect angular mechanical stops arranged on either side of the steering column, said vehicle including a vehicle engine, said steering system including at least: the steering column connected to a steering wheel, the angular mechanical stops arranged on either side of the steering column, a force feedback module fixed to the steering column, said force feedback module including an electric motor, a reducer and a torque and/or angle sensor, said method including the magnetic braking of the steering column connected to the steering wheel applied by the electric motor of the force feedback module when said electric motor of the force feedback module is not powered.Type: ApplicationFiled: July 23, 2021Publication date: February 1, 2024Applicant: JTEKT EUROPEInventors: Arnaud BOUCHET, Pierre LARMINY, Roch MONNET
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Patent number: 11886371Abstract: An asynchronous first device in communication with an asynchronous second device. The time for the first device to complete a processing cycle is a first device major frame and the first device major frame comprises a first device dedicated processing time slot at the end of the first device major frame. The first device is configured to send a rescheduling signal to the second device when it has completed a first device major frame. The first device is configured, during every first device dedicated processing slot, to: monitor for a rescheduling signal sent from the second device to the first device; and if a rescheduling signal from the second device is received: reschedule the current first device major frame to a rescheduled first device major frame; wherein the end of the rescheduled first device major frame coincides with the time the rescheduling signal from the second device was received.Type: GrantFiled: July 6, 2022Date of Patent: January 30, 2024Assignee: RATIER-FIGEAC SASInventors: Arnaud Bouchet, Patrice Garanx
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Publication number: 20230402947Abstract: A method for controlling an electric motor (12) comprising at least: one first determination step (E1) in which an intermediate value of a direct axis current (Idstat) and an intermediate value of a quadrature axis current (Iqstat) of the AC supply current of the motor (12) are determined, one second determination step (E2) in which a target value of the direct axis current (Idcible) and a target value of the quadrature axis current (Iqcible) are determined, one driving step (EP) in which the at least one inverter is driven by the microcontroller (20) based on the target value of the direct axis current (Idcible) and the target value of the quadrature axis current (Iqcible).Type: ApplicationFiled: May 24, 2023Publication date: December 14, 2023Applicant: JTEKT EUROPEInventor: Arnaud BOUCHET
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Patent number: 11827292Abstract: A method for determining a friction torque exerted within a steering column of an electric power steering system, the power steering system comprising a steering column provided with a torsion bar undergoing an instantaneous torsion torque, the steering column being linked to a pinion capable of driving a rack, a torsion bar sensor intended to measure the instantaneous torsion torque, the method comprising an acquisition step, during which at least one value of the friction torque is measured by the torsion bar sensor, the acquisition step being carried out following the reception of a trigger signal, the value of the trigger signal depending on values of conditional variables (VL, A, V, C, ?C, ?A).Type: GrantFiled: July 7, 2022Date of Patent: November 28, 2023Assignee: JTEKT EUROPEInventors: Pierre Larminy, Arnaud Bouchet
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Patent number: 11686213Abstract: A propeller health monitoring system for an aircraft includes an aircraft having one or more propellers that includes light in or on them. The system includes one or more receptors mounted to a fuselage or a nacelle of the aircraft, each receptor having a sensor surface which is able to detect a position for each light beam crossing over the sensor surface as the propeller rotates, such that the receptor generates a signal that is indicative of the position as a measure of blade tip trajectory for each passing propeller blade The system also includes a processing unit which analyses the signals from the receptor to determine health of the propeller blades of the one or more propellers based on where the beams of light from the propeller blades have crossed over the sensor surface.Type: GrantFiled: February 3, 2021Date of Patent: June 27, 2023Assignee: RATIER-FIGEAC SASInventors: Abdellah El Haloui, Arnaud Bouchet
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Patent number: 11618499Abstract: A method for controlling a power steering system of a vehicle, having a steering wheel, and an inverter powering an assist motor, when a short-circuit failure is detected between a phase of the assist motor and an electric line of the inverter, wherein it includes:—a configuration step intended to determine, for a magnetic field of the assist motor, a controllable zone and a non-controllable zone, —a step of compensating for a space-average brake torque in the controllable zone.Type: GrantFiled: February 21, 2019Date of Patent: April 4, 2023Assignee: JTEKT EUROPEInventor: Arnaud Bouchet
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Patent number: 11616660Abstract: A serial communications bus system comprising a plurality of end users arranged to transmit data on a common data bus, each end user provided with a bus arbiter, physically separate from the respective end user, configured to define, for that end user, a cycle of transmission enable intervals whereby the end user may transmit data on the data bus and transmission disable intervals whereby the end user may not transmit data on the data bus.Type: GrantFiled: October 27, 2021Date of Patent: March 28, 2023Assignee: Ratier-Figeac SASInventor: Arnaud Bouchet
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Publication number: 20230062399Abstract: A strain gauge assembly includes: a strain gauge comprising a plurality of resistive elements connected as a Wheatstone bridge or half Wheatstone bridge; an excitation signal generator arranged to provide an excitation signal to two resistive elements of the strain gauge; phase shifting circuitry arranged to determine phase shifts in the excitation signal responsive to changes in resistance of the two resistive elements and an end stage configured to output a measure indicative of the phase shift as an indication of strain on the assembly.Type: ApplicationFiled: August 26, 2022Publication date: March 2, 2023Inventor: Arnaud BOUCHET
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Publication number: 20230055032Abstract: A method for controlling a power steering system of a vehicle which is intended to limit the physical supply current supplied to the at least one power steering motor in the event of an impact between at least one rack and at least one mechanical end stop, the control method including: —a determination step wherein the power steering computer determines a setpoint torque for the power steering motor; —a driving step wherein the power steering computer determines the setpoint supply current for the power steering motor; wherein the control method also includes: —a detection step wherein the power steering computer detects an impact between rack and mechanical end stop; —a protection step emitting a protected signal to the driving step when an impact is detected, so that the setpoint supply current determined by the driving step is below a maximum setpoint supply current.Type: ApplicationFiled: February 3, 2021Publication date: February 23, 2023Applicant: JTEKT EUROPEInventors: Arnaud BOUCHET, Ghislain PONCET
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Publication number: 20230013461Abstract: An asynchronous first device in communication with an asynchronous second device. The time for the first device to complete a processing cycle is a first device major frame and the first device major frame comprises a first device dedicated processing time slot at the end of the first device major frame. The first device is configured to send a rescheduling signal to the second device when it has completed a first device major frame. The first device is configured, during every first device dedicated processing slot, to: monitor for a rescheduling signal sent from the second device to the first device; and if a rescheduling signal from the second device is received: reschedule the current first device major frame to a rescheduled first device major frame; wherein the end of the rescheduled first device major frame coincides with the time the rescheduling signal from the second device was received.Type: ApplicationFiled: July 6, 2022Publication date: January 19, 2023Inventors: Arnaud BOUCHET, Patrice GARANX
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Publication number: 20230008327Abstract: A method for determining a friction torque exerted within a steering column of an electric power steering system, the power steering system comprising a steering column provided with a torsion bar undergoing an instantaneous torsion torque, the steering column being linked to a pinion capable of driving a rack, a torsion bar sensor intended to measure the instantaneous torsion torque, the method comprising an acquisition step, during which at least one value of the friction torque is measured by the torsion bar sensor, the acquisition step being carried out following the reception of a trigger signal, the value of the trigger signal depending on values of conditional variables (VL, A, V, C, ?C, ?A).Type: ApplicationFiled: July 7, 2022Publication date: January 12, 2023Applicant: JTEKT EUROPEInventors: Pierre LARMINY, Arnaud BOUCHET
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Patent number: 11543268Abstract: A rotary position sensor is includes a static portion that comprises a first board and a second board and a rotatable portion that comprises a third board. The second board comprises a first planar coil; and the third board comprises a second planar coil as well as means for generating luminance. The first board comprises means for receiving the generated luminance and the first planar coil of the second board is configured to transmit power to said second planar coil of said third board via inductance. The power received by said second planar coil is configured to supply a current to said means for generating luminance; and said means for generating luminance is configured to emit a luminance signal which has a luminance level.Type: GrantFiled: September 17, 2019Date of Patent: January 3, 2023Assignee: RATIER-FIGEAC SASInventor: Arnaud Bouchet
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Publication number: 20220158866Abstract: A serial communications bus system comprising a plurality of end users arranged to transmit data on a common data bus, each end user provided with a bus arbiter, physically separate from the respective end user, configured to define, for that end user, a cycle of transmission enable intervals whereby the end user may transmit data on the data bus and transmission disable intervals whereby the end user may not transmit data on the data bus.Type: ApplicationFiled: October 27, 2021Publication date: May 19, 2022Applicant: Ratier-Figeac SASInventor: Arnaud Bouchet
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Patent number: 11157673Abstract: A field programmable gate array (FPGA) having at least first and second processing circuits implemented thereon. Each of the first and second processing circuits comprises a numerical core and associated peripheral components. The numerical core in the first processing circuit is dissimilar to the numerical core in the second processing circuit. The first and second processing circuits are segregated from each other in floorplan view.Type: GrantFiled: December 16, 2019Date of Patent: October 26, 2021Assignee: RATIER-FIGEAC SASInventor: Arnaud Bouchet
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Publication number: 20210254497Abstract: A propeller health monitoring system for an aircraft includes an aircraft having one or more propellers that includes light in or on them. The system includes one or more receptors mounted to a fuselage or a nacelle of the aircraft, each receptor having a sensor surface which is able to detect a position for each light beam crossing over the sensor surface as the propeller rotates, such that the receptor generates a signal that is indicative of the position as a measure of blade tip trajectory for each passing propeller blade The system also includes a processing unit which analyses the signals from the receptor to determine health of the propeller blades of the one or more propellers based on where the beams of light from the propeller blades have crossed over the sensor surface.Type: ApplicationFiled: February 3, 2021Publication date: August 19, 2021Inventors: Abdellah EL HALOUI, Arnaud BOUCHET
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Publication number: 20210012052Abstract: A field programmable gate array (FPGA) having at least first and second processing circuits implemented thereon. Each of the first and second processing circuits comprises a numerical core and associated peripheral components. The numerical core in the first processing circuit is dissimilar to the numerical core in the second processing circuit. The first and second processing circuits are segregated from each other in floorplan view.Type: ApplicationFiled: December 16, 2019Publication date: January 14, 2021Inventor: Arnaud BOUCHET
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Publication number: 20200398890Abstract: A method for controlling a power steering system of a vehicle, having a steering wheel, and an inverter powering an assist motor, when a short-circuit failure is detected between a phase of the assist motor and an electric line of the inverter, wherein it includes:—a configuration step intended to determine, for a magnetic field of the assist motor, a controllable zone and a non-controllable zone, —a step of compensating for a space-average brake torque in the controllable zone.Type: ApplicationFiled: February 21, 2019Publication date: December 24, 2020Applicant: JTEKT EUROPEInventor: Arnaud BOUCHET
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Publication number: 20200240814Abstract: A rotary position sensor is includes a static portion that comprises a first board and a second board and a rotatable portion that comprises a third board. The second board comprises a first planar coil; and the third board comprises a second planar coil as well as means for generating luminance. The first board comprises means for receiving the generated luminance and the first planar coil of the second board is configured to transmit power to said second planar coil of said third board via inductance. The power received by said second planar coil is configured to supply a current to said means for generating luminance; and said means for generating luminance is configured to emit a luminance signal which has a luminance level.Type: ApplicationFiled: September 17, 2019Publication date: July 30, 2020Inventor: Arnaud BOUCHET
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Publication number: 20190305822Abstract: The system of the present disclosure provides a bus network that allows digital data exchanges over the existing aircraft (115 V) A/C power line and, where present, via the 3-track slip ring that already exists for powering a de-icing device on a rotating part of the aircraft.Type: ApplicationFiled: January 3, 2019Publication date: October 3, 2019Inventors: Arnaud Bouchet, Nicolas Merdrignac
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Patent number: 8976079Abstract: A secure display system for a movable object, such as an aircraft, includes: a screen comprising at least two independent matrices formed of pixels, each of the matrices being controlled by an independent graphic channel; a light box comprising at least two independent subassemblies, each backlighting each half-screen; two bypass functions, a bypass function being associated with a graphic channel, a bypass function being linked to an input of one of the matrices; a central module having a function of mixing the data originating from the two independent graphic channels, and a function of separating said data, said separation module being connected to said bypass functions; each graphic channel comprising image-generation means; and two power supply means. The display system may be used in an aeroplane.Type: GrantFiled: August 3, 2012Date of Patent: March 10, 2015Assignee: ThalesInventors: Nicolas Besnard, Arnaud Bouchet