Patents by Inventor Jean-Marie Vespasien
Jean-Marie Vespasien 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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Patent number: 10322713Abstract: A method controls a hybrid transmission for a motor vehicle that can operate according to at least two kinematic modes involving various connections of at least one internal combustion engine, at least one electric motor, and at least two drive wheels. The method includes controlling the transition between kinematic modes in accordance with the current kinematic mode during the start of the transition and a kinematic mode setting, if it is determined that the current kinematic mode is not equal to the kinematic mode of the transition and that the kinematic mode setting is not equal to the final kinematic mode, making a decision regarding the suitability of a transition interruption, during a change of request of the driver during which it is determined whether an interruption of the action is underway, and then continuing the transition or undertaking a new transition according to the result.Type: GrantFiled: March 10, 2015Date of Patent: June 18, 2019Assignee: RENAULT s.a.s.Inventors: Jean-Marie Vespasien, Vivien Lalleron
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Patent number: 10144432Abstract: Method for controlling the claw coupling of two gearbox elements initially rotating at different speeds when the driver or the box computer requests claw coupling, characterized in that, in a first phase, the difference in rotational speed of the rotary elements is brought by a regulator to a non-zero reference value without any translational movement of the rotary elements toward one another, and in that the movement of the rotary elements until they are claw-coupled occurs in a second phase that begins when the difference in rotational speed reaches its desired value, during which phase the difference perceived by the regulator is modulated by a factor (F) that is a function of the raw difference between the measured value and the reference value.Type: GrantFiled: March 13, 2014Date of Patent: December 4, 2018Assignee: RENAULT s.a.s.Inventor: Jean-Marie Vespasien
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Patent number: 10086828Abstract: A method controls the startup of a heat engine of a hybrid power train of a vehicle. The power train includes the heat engine and an electric drive machine, two concentric main shafts coupled one to the heat engine and one to the electric machine, at least one step-down gear of each of the main shafts on a secondary shaft connected to wheels of the vehicle, and a coupling of the two main shafts. The method includes coupling the two main shafts, inhibiting fuel injection of the heat engine, launching the heat engine by the electric machine, synchronizing a speed of the heat engine and a speed of the electric machine without fuel injection, activating the fuel injection and turning off the electric machine and decoupling the two main shafts.Type: GrantFiled: November 17, 2014Date of Patent: October 2, 2018Assignee: RENAULT s.a.s.Inventors: Jean-Marie Vespasien, Maxime Debert, Ahmed Ketfi-Cherif
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Publication number: 20180178777Abstract: A method controls the startup of a heat engine of a hybrid power train of a vehicle. The power train includes the heat engine and an electric drive machine, two concentric main shafts coupled one to the heat engine and one to the electric machine, at least one step-down gear of each of the main shafts on a secondary shaft connected to wheels of the vehicle, and a coupling of the two main shafts. The method includes coupling the two main shafts, inhibiting fuel injection of the heat engine, launching the heat engine by the electric machine, synchronizing a speed of the heat engine and a speed of the electric machine without fuel injection, activating the fuel injection and turning off the electric machine and decoupling the two main shafts.Type: ApplicationFiled: November 17, 2014Publication date: June 28, 2018Applicant: RENAULT s.a.s.Inventors: Jean-Marie VESPASIEN, Maxime DEBERT, Ahmed KETFI-CHERIF
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Patent number: 9829095Abstract: A method for controlling the stationary clutching of an idler gear on a secondary shaft of a parallel shaft gearbox, by movement of a sliding gear constrained to rotate with said shaft towards the idler gear without the intervention of mechanical synchronization members, characterized in that it involves:—activating the translational movement of the sliding gear towards the idler gear without previous synchronization, if the two parts are unable to rotate when clutching is requested, and—activating a rotation of the idler gear following the free flight travel of the sliding gear to position the teeth of one in place of the holes of the other, if the clutch engagement threshold has not been crossed following a time delay.Type: GrantFiled: March 13, 2014Date of Patent: November 28, 2017Assignee: RENAULT s.a.s.Inventors: Jean-Marie Vespasien, Vivien Lalleron
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Publication number: 20170120895Abstract: A method controls a hybrid transmission for a motor vehicle that can operate according to at least two kinematic modes involving various connections of at least one heat engine, at least one electric motor and at least two drive wheels, The method includes controlling the transition between kinematic nodes in accordance with the current kinematic mode during the start of the transition and a kinematic mode setting, if it is determined that the current kinematic mode is not equal to the kinematic mode of the transition and that the kinematic mode setting is not equal to the final kinematic mode, making a decision regarding the suitability of a transition interruption, during a change of request of the driver during which it is determined whether an interruption of the action is underway, and then continuing the transition or undertaking a new transition according to the result.Type: ApplicationFiled: March 10, 2015Publication date: May 4, 2017Applicant: RENAULT s.a.s.Inventors: Jean-Marie VESPASIEN, Vivien LALLERON
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Patent number: 9428068Abstract: A method for controlling recharging of a traction battery on a motor vehicle hybrid transmission including a heat engine and at least one electrical machine, wherein the electrical machine is used as a sole motor-driven power source up to a speed threshold beyond which it is possible to couple the heat engine with the wheels, in hybrid modes, to run power supplies from the heat engine and the electrical machine simultaneously with each other. In the method, below the speed threshold, the electrical machine ensures only torque to be transmitted to the wheels, while the heat engine is ignited to provide recharging without contributing to pull of the vehicle when a driver bears on the accelerator pedal, and while the wheels are separate from the heat engine and the electrical machine, when the driver does not bear on the accelerator pedal, to enable recharging of the battery.Type: GrantFiled: March 19, 2013Date of Patent: August 30, 2016Assignee: RENAULT s.a.s.Inventors: Maxime Debert, Jean-Marie Vespasien
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Publication number: 20160075337Abstract: Method for controlling the claw coupling of two gearbox elements initially rotating at different speeds when the driver or the box computer requests claw coupling, characterized in that, in a first phase, the difference in rotational speed of the rotary elements is brought by a regulator to a non-zero reference value without any translational movement of the rotary elements toward one another, and in that the movement of the rotary elements until they are claw-coupled occurs in a second phase that begins when the difference in rotational speed reaches its desired value, during which phase the difference perceived by the regulator is modulated by a factor (F) that is a function of the raw difference between the measured value and the reference value.Type: ApplicationFiled: March 13, 2014Publication date: March 17, 2016Applicant: RENAULT S.A.S.Inventor: Jean-Marie VESPASIEN
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Publication number: 20160040779Abstract: A method for controlling the stationary clutching of an idler gear on a secondary shaft of a parallel shaft gearbox, by movement of a sliding gear constrained to rotate with said shaft towards the idler gear without the intervention of mechanical synchronisation members, characterised in that it involves: —activating the translational movement of the sliding gear towards the idler gear without previous synchronisation, if the two parts are unable to rotate when clutching is requested, and—activating a rotation of the idler gear following the free flight travel of the sliding gear to position the teeth of one in place of the holes of the other, if the clutch engagement threshold has not been crossed following a time delay.Type: ApplicationFiled: March 13, 2014Publication date: February 11, 2016Applicant: RENAULT S.A.S.Inventors: Jean-Marie VESPASIEN, Vivien LALLERON
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Patent number: 9227514Abstract: A method for adapting an engine-braking simulation for a vehicle provided with a regenerative braking device includes generating an arbitrated braking signal based on a simulated engine-braking signal developed on the basis of signals output from an acceleration pedal, and based on at least one signal output from at least one active safety system. The method also includes generating a braking instruction intended for the regenerative braking device by time filtration of the arbitrated braking signal.Type: GrantFiled: November 7, 2012Date of Patent: January 5, 2016Assignee: RENAULT s.a.s.Inventors: Nicolas Gouhier, Yann Chazal, Jean-Marie Vespasien, Sebastien Foot, Walter Francesconi
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Publication number: 20150066273Abstract: A method for controlling recharging of a traction battery on a motor vehicle hybrid transmission including a heat engine and at least one electrical machine, wherein the electrical machine is used as a sole motor-driven power source up to a speed threshold beyond which it is possible to couple the heat engine with the wheels, in hybrid modes, to run power supplies from the heat engine and the electrical machine simultaneously with each other. In the method, below the speed threshold, the electrical machine ensures only torque to be transmitted to the wheels, while the heat engine is ignited to provide recharging without contributing to pull of the vehicle when a driver bears on the accelerator pedal, and while the wheels are separate from the heat engine and the electrical machine, when the driver does not bear on the accelerator pedal, to enable recharging of the battery.Type: ApplicationFiled: March 19, 2013Publication date: March 5, 2015Applicant: RENAULT s.a.s.Inventors: Maxime Debert, Jean-Marie Vespasien
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Publication number: 20140336859Abstract: A method for adapting an engine-braking simulation for a vehicle provided with a regenerative braking device includes generating an arbitrated braking signal based on a simulated engine-braking signal developed on the basis of signals output from an acceleration pedal, and based on at least one signal output from at least one active safety system. The method also includes generating a braking instruction intended for the regenerative braking device by time filtration of the arbitrated braking signal.Type: ApplicationFiled: November 7, 2012Publication date: November 13, 2014Applicant: RENAULT s.a.s.Inventors: Nicolas Gouhier, Yann Chazal, Jean-Marie Vespasien, Sebastien Foot, Walter Francesconi
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Patent number: 8725334Abstract: A method for controlling torque applied to wheels of a vehicle including at least one electric motor connected to a battery and connected to at least one driving wheel. The motor is capable of operating as a generator for recharging the battery when the vehicle slows down. A first braking adjustment travel and a second acceleration adjustment travel are applied to the movement of the acceleration pedal of the vehicle, the braking adjustment travel being a continuously decreasing function relative to the charge of the battery.Type: GrantFiled: April 21, 2010Date of Patent: May 13, 2014Assignee: Renault S.A.S.Inventor: Jean-Marie Vespasien
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Patent number: 8255106Abstract: A method for controlling regenerative braking of a vehicle including at least one thermal engine and/or at least one electric motor, including calculating a GMP braking force setpoint at the wheel, including a regenerative braking force, that is independent from a relation between the brake pedal depression and the braking force applied to the wheels by the main brakes of the vehicle.Type: GrantFiled: November 12, 2008Date of Patent: August 28, 2012Assignee: Renault S.A.S.Inventor: Jean-Marie Vespasien
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Publication number: 20120109441Abstract: A method for controlling torque applied to wheels of a vehicle including at least one electric motor connected to a battery and connected to at least one driving wheel. The motor is capable of operating as a generator for recharging the battery when the vehicle slows down. A first braking adjustment travel and a second acceleration adjustment travel are applied to the movement of the acceleration pedal of the vehicle, the braking adjustment travel being a continuously decreasing function relative to the charge of the battery.Type: ApplicationFiled: April 21, 2010Publication date: May 3, 2012Applicant: RENAULT S.A.S.Inventor: Jean-Marie Vespasien
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Publication number: 20100299036Abstract: A method for controlling regenerative braking of a vehicle including at least one thermal engine and/or at least one electric motor, including calculating a GMP braking force setpoint at the wheel, including a regenerative braking force, that is independent from a relation between the brake pedal depression and the braking force applied to the wheels by the main brakes of the vehicle.Type: ApplicationFiled: November 12, 2008Publication date: November 25, 2010Applicant: RENAULT S.A.S.Inventor: Jean-Marie Vespasien
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Patent number: 7124020Abstract: The invention relates to a system for calibrating apparatus (28) for acquiring the pressure in a cylinder (10) of a motor vehicle diesel engine, of the type comprising a cylinder pressure sensor (30) associated with the cylinder and means (32) for conditioning the signal delivered by the sensor (30) as a function of conditioning parameters.Type: GrantFiled: November 22, 2004Date of Patent: October 17, 2006Assignees: Peugeot Citroen Automobiles SA, Delphi Technologies, Inc.Inventors: Claire Vermonet, Guillaume Meissonnier, Cédric Lorret, Jean-Marie Vespasien
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Publication number: 20050125140Abstract: The invention relates to a system for calibrating apparatus (28) for acquiring the pressure in a cylinder (10) of a motor vehicle diesel engine, of the type comprising a cylinder pressure sensor (30) associated with the cylinder and means (32) for conditioning the signal delivered by the sensor (30) as a function of conditioning parameters.Type: ApplicationFiled: November 22, 2004Publication date: June 9, 2005Inventors: Claire Vermonet, Guillaume Meissonnier, Cedric Lorret, Jean-Marie Vespasien