Patents by Inventor Francois BONIGEN
Francois BONIGEN 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: 20220388637Abstract: Method for braking at least one wheel of an aircraft, the wheel being provided with a brake having at least one braking actuator, comprising the steps of: generating a braking command (Com) on the basis of a braking setpoint (Cf); estimating a wheel speed; applying a dynamic correction to the braking command, the dynamic correction being a function of the braking command and of the wheel speed (V(t)), the dynamic correction comprising the step of producing a corrected braking command (Ccorr) which is greater than the braking command when the wheel speed is greater than or equal to a predetermined speed threshold, and then the step of reducing the correct braking command when the wheel speed becomes less than the predetermined speed threshold, with the result that the corrected braking command becomes less than the braking command.Type: ApplicationFiled: November 5, 2020Publication date: December 8, 2022Applicant: SAFRAN LANDING SYSTEMSInventor: François BONIGEN
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Patent number: 10793121Abstract: Generally described, an architecture for an aircraft braking system is provided. The architecture includes a brake having friction members and electromechanical actuators, each electromechanical actuator having an electric motor and a power module; a computer arranged to produce digital control signals; a power unit arranged to produce an electrical power supply for powering the electric motors; and a junction box disposed on the undercarriage. The junction box may be configured to receive and to distribute the electrical power supply. The junction box generally includes an electrical motor control module that produces digital motor command signals from the digital control signals, and an electrical converter module that converts the digital motor command signals into analog motor command signals for the power modules of the electromechanical actuators.Type: GrantFiled: November 7, 2018Date of Patent: October 6, 2020Assignee: SAFRAN LANDING SYSTEMSInventors: Brian Goyez, François Bonigen, Olivier Frey
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Patent number: 10618640Abstract: An aircraft braking system comprising: a first group (Ga) of actuators and a second group (Gb) of actuators. A first control module (105a) is adapted, in a nominal mode, to control the first group, and in a reconfigured mode, to control the first group and the second group. A second control module (105b) is adapted, in a nominal mode, to control the second group, and in a reconfigured mode, to control the first group and the second group. A monitoring unit adapted is adapted to monitor the first control module and the second control module, and to put the first control module into the reconfigured mode of operation when the monitoring unit detects a failure of the second control module, and to put the second control module into the reconfigured mode when the monitoring unit detects a failure of the first control module.Type: GrantFiled: July 24, 2017Date of Patent: April 14, 2020Assignee: SAFRAN LANDING SYSTEMSInventors: Francois Bonigen, David Frank, Raphael Pierra, Dominique Onfroy
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Publication number: 20200023821Abstract: Generally described, an architecture for an aircraft braking system is provided. The architecture includes a brake having friction members and electromechanical actuators, each electromechanical actuator having an electric motor and a power module; a computer arranged to produce digital control signals; a power unit arranged to produce an electrical power supply for powering the electric motors; and a junction box disposed on the undercarriage. The junction box may be configured to receive and to distribute the electrical power supply. The junction box generally includes an electrical motor control module that produces digital motor command signals from the digital control signals, and an electrical converter module that converts the digital motor command signals into analog motor command signals for the power modules of the electromechanical actuators.Type: ApplicationFiled: November 7, 2018Publication date: January 23, 2020Applicant: SAFRAN LANDING SYSTEMSInventors: Brian Goyez, François Bonigen, Olivier Frey
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Publication number: 20180022446Abstract: An aircraft braking system comprising: a first group (Ga) of actuators and a second group (Gb) of actuators. A first control module (105a) is adapted, in a nominal mode, to control the first group, and in a reconfigured mode, to control the first group and the second group. A second control module (105b) is adapted, in a nominal mode, to control the second group, and in a reconfigured mode, to control the first group and the second group. A monitoring unit adapted is adapted to monitor the first control module and the second control module, and to put the first control module into the reconfigured mode of operation when the monitoring unit detects a failure of the second control module, and to put the second control module into the reconfigured mode when the monitoring unit detects a failure of the first control module.Type: ApplicationFiled: July 24, 2017Publication date: January 25, 2018Applicant: SAFRAN LANDING SYSTEMSInventors: Francois BONIGEN, David FRANK, Raphael PIERRA, Dominique ONFROY
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Patent number: 9815447Abstract: A method for monitoring at least two aircraft wheel electromechanical braking actuators. For each electromechanical actuator, the method includes first determining a current value representative of the power supply current of the electromechanical actuator and determining a reference current value estimated from the power supply currents of at least one other electromechanical actuator. Then, the representative current value and the reference current value are compared. Any abnormal operation of the electromechanical actuator is detected when the difference between the representative current value and the reference current value is above a predetermined threshold.Type: GrantFiled: January 26, 2015Date of Patent: November 14, 2017Assignee: MESSIER-BUGATTI-DOWTYInventors: Philippe Chico, Frédéric Ragot, François Bonigen, Thomas Lepage
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Patent number: 9574633Abstract: A method for monitoring a blocking member (12) of an electromechanical actuator (1). The monitoring method comprising the steps of: determining a value representative of a power supply current of a motor (11) during an off-load operating phase of the electromechanical actuator (1); comparing the value representative of the power supply current with a predetermined current threshold defined from nominal off-load operating characteristics of the electromechanical actuator (1); and detecting an accidental locking of the blocking member (12) when the value representative of the power supply current is above or equal to the predetermined current threshold. There also is an electromechanical actuator (1) comprising a blocking member (12) monitored by such a method.Type: GrantFiled: January 7, 2015Date of Patent: February 21, 2017Assignee: MESSIER-BUGATTI-DOWTYInventors: Thomas Lepage, Philippe Chico, Francois Bonigen, Frederic Ragot
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Publication number: 20150217748Abstract: A method for monitoring at least two aircraft wheel electromechanical braking actuators. For each electromechanical actuator, the method includes first determining a current value representative of the power supply current of the electromechanical actuator and determining a reference current value estimated from the power supply currents of at least one other electromechanical actuator. Then, the representative current value and the reference current value are compared. Any abnormal operation of the electromechanical actuator is detected when the difference between the representative current value and the reference current value is above a predetermined threshold.Type: ApplicationFiled: January 26, 2015Publication date: August 6, 2015Applicant: MESSIER-BUGATTI-DOWTYInventors: Philippe CHICO, Frédéric RAGOT, François BONIGEN, Thomas LEPAGE
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Publication number: 20150198209Abstract: A method for monitoring a blocking member (12) of an electromechanical actuator (1). The monitoring method comprising the steps of: determining a value representative of a power supply current of a motor (11) during an off-load operating phase of the electromechanical actuator (1); comparing the value representative of the power supply current with a predetermined current threshold defined from nominal off-load operating characteristics of the electromechanical actuator (1); and detecting an accidental locking of the blocking member (12) when the value representative of the power supply current is above or equal to the predetermined current threshold. There also is an electromechanical actuator (1) comprising a blocking member (12) monitored by such a method.Type: ApplicationFiled: January 7, 2015Publication date: July 16, 2015Applicant: MESSIER-BUGATTI-DOWTYInventors: Thomas LEPAGE, Philippe CHICO, Francois BONIGEN, Frederic RAGOT