Patents Assigned to Magneti Marelli S.p.A.
  • Control method and unit of an electric traction motorcycle according to the position of an accelerator grip
    Patent number: 8265814
    Abstract: A control method and unit of an electric traction motorcycle; there are provided: an accelerator grip pivotally mounted to rotate in a first rotation direction and about a rotation axis from a neutral position towards a maximum acceleration position; an elastic member which tends to keep the accelerator grip in the neutral position; at least one position sensor for detecting the angular position of the accelerator grip about the rotation axis; and a control device which drives an electric machine of the motorcycle according to the angular position of the accelerator grip; the accelerator grip is mounted to rotate in a second rotation direction opposite to the first rotation direction and about the rotation axis from the neutral position towards a deceleration position which is arranged in the direction opposite to the maximum acceleration position with respect to the neutral position.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: September 11, 2012
    Assignee: Magneti Marelli S.p.A.
    Inventor: Paolo Cominetti
  • Electric machine with single stator and two mutually independent rotors, and road vehicle provided with said electric machine
    Patent number: 8222784
    Abstract: An electric machine provided with: a stator, equipped with a single stator winding; at least two shafts, which are independent of one another and are mounted so that they can turn; at least two rotors, which are independent of one another, are magnetically coupled to the stator, and are mounted on the shafts; and a single electronic power converter, which is connected to the stator winding for supplying the stator winding itself with a total electric current.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: July 17, 2012
    Assignee: Magneti Marelli S.p.A.
    Inventors: Giovanni Serra, Angelo Tani, Luca Zarri, Marco Raimondi, Marco Greco, Paolo Cominetti
  • Turbosupercharged internal combustion engine control method
    Publication number: 20120123663
    Abstract: A method of controlling an internal combustion engine supercharged by a turbosupercharger having a turbine and a compressor; the control method including the steps of: determining, in a reduced mass flow/compression ratio graph, at least one limit operation curve of the compressor representing a limit of the operating range of the compressor; controlling the turbosupercharger to keep the actual reduced mass flow and actual compression ratio of the compressor within the limit defined by the limit operation curve of the compressor; determining an index as a function of the dynamics of the reduced mass flow of the compressor; and modifying the limit operation curve of the compressor as a function of the index.
    Type: Application
    Filed: October 11, 2011
    Publication date: May 17, 2012
    Applicant: MAGNETI MARELLI S.P.A.
    Inventor: Marco Panciroli
  • Method for controlling the air supply in a cylinder of a four-stroke internal combustion engine with controlled ignition
    Publication number: 20120089318
    Abstract: A method for controlling air supply in a cylinder of a four-stroke internal-combustion engine with controlled ignition includes steps of: determining, in a phase prior to a suction phase, an estimate of mass of desired air to be sucked into the cylinder during the suction phase; determining, in a phase prior to the suction phase, a forecast of suction pressure during the suction phase; determining, in a phase prior to the suction phase, programming of suction of air as a function of the estimate of the mass of the desired air to be sucked into the cylinder during the suction phase and of the forecast of the suction pressure during the suction phase; and controlling, until an end of an exhaust phase, the suction of air into the cylinder by piloting a control device for implementation of an intake valve according to the programming of the suction of air.
    Type: Application
    Filed: July 14, 2011
    Publication date: April 12, 2012
    Applicant: Magneti Marelli S.p.A.
    Inventor: Renzo Ruggiano
  • Method for controlling the fuel supply in a cylinder of a four-stroke internal combustion engine with controlled ignition
    Publication number: 20120041668
    Abstract: Method for controlling the fuel supply in a cylinder of a four-stroke internal combustion engine with controlled ignition; the control method comprises the steps of: determining, prior to the exhaust phase, a first forecast (PPR-1) of the suction pressure during the suction phase; determining, prior to the exhaust phase, an initial programming of injection of fuel as a function of the desired air/fuel ratio ?DES and the first forecast (PPR-1) of the suction pressure during the suction phase; determining at the end of the exhaust phase, a second forecast (PPR-2) of the suction pressure during the suction phase; and determining, at the end of the exhaust phase, a final programming of the fuel injection as a function of the desired air/fuel ratio ?DES, of the second forecast (PPR-2) of the suction pressure during the suction phase and of the initial programming of the fuel injection.
    Type: Application
    Filed: July 14, 2011
    Publication date: February 16, 2012
    Applicant: MAGNETI MARELLI S.P.A.
    Inventor: Renzo Ruggiano
  • Fuel Pump For A Direct Injection System
    Publication number: 20120012084
    Abstract: A fuel pump for a direct injection system provided with a common rail; the fuel pump has: at least one pumping chamber defined in a main body; a piston which is mounted sliding inside the pumping chamber; a suction channel connected to the pumping chamber and regulated by a suction valve; a delivery channel connected to the pumping chamber and regulated by a delivery valve; and a high pressure connection, which is welded by a ring weld to a wall of the main body at the delivery channel, has the function of allowing a connection to a supply duct that feeds the fuel under pressure to the common rail, and has internally a passing through channel through which the fuel coming from the delivery channel flows towards the supply duct.
    Type: Application
    Filed: May 16, 2011
    Publication date: January 19, 2012
    Applicant: MAGNETI MARELLI S.P.A.
    Inventors: Michele Petrone, Enrico Vezzani, Massimo Mattioli
  • Management Unit And Method For Managing Electric Energy Stored In A Battery Comprising A Number Of Series-Connected Cells
    Publication number: 20110309797
    Abstract: A management unit and method for managing electric energy stored in a battery composed of a number of series-connected cells, the management unit having: a main equalizing circuit, which forms the primary of an electric transformer and has a constant alternating-current generator powered by the battery and which feeds alternating current of constant intensity through the main equalizing circuit; and, for each cell of the battery, a secondary equalizing circuit, which forms the secondary of the electric transformer, is connected parallel to the cell, has a one-way electronic device which imposes electric current flow to the cell in one direction only, and is connected to a drive device that can be activated to zero the voltage applied to the cell by the secondary equalizing circuit.
    Type: Application
    Filed: February 23, 2011
    Publication date: December 22, 2011
    Applicant: MAGNETI MARELLI S.P.A
    Inventor: Franco Ciampolini
  • Electric motor with bar winding and connection plates
    Patent number: 8076817
    Abstract: A multiphase synchronous electrical machine for converting kinetic energy into electrical energy and electrical energy into kinetic energy has a rotor extending along an axis, and a stator, which is provided with a stator pack having slots and with an electrical winding, which extends in part in the slots and in part in a position corresponding to two heads arranged on opposite sides of the stator pack and has bars housed in the slots and connected to one another in a position corresponding to the heads and connection plates, which are welded to the bars, are packed with respect to one another and to the stator pack in an axial direction and are shaped in such a way as to define a prolongation of the stator pack.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: December 13, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Franco Ciampolini, Augusto Eugenio Michele Maria Guccione, Egidio D'Alpaos, Paolo Lissoni
  • Electric motor with bar winding and connection plates
    Patent number: 8072114
    Abstract: A multiphase synchronous electrical machine for converting kinetic energy into electrical energy and electrical energy into kinetic energy has a rotor, extending along an axis, and a stator, which is provided with a stator pack having slots and with an electrical winding, which extends in part in the slots and in part at two heads arranged on opposite sides of the stator pack and which has bars, housed in the slots and connected to one at the heads, connection plates, each of which has: a main body having at least two seats for housing the bars; and an arm, which is set between the two seats and extends from the main body towards the axis.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: December 6, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Franco Ciampolini, Augusto Eugenio Michele Maria Guccione, Egidio D'Alpaos, Paolo Lissoni
  • Fuel injector with direct shutter actuation for internal combustion engines
    Patent number: 8061632
    Abstract: A fuel injector for internal combustion engines provided with a fuel feeding channel, the feeding channel having an axis and an injection outlet; an injection valve to control the outlet; an injection valve having a shutter arranged inside the feeding channel to define, within the feeding channel, a first fuel introduction section, the shutter being movable from and to a closing position along the feeding channel, which has a second section; and an annular sealing seat arranged on the feeding channel upstream of the outlet; an elastic member for normally keeping the shutter in the closing position; an actuator mechanism connected to the shutter to displace the shutter itself from the closing position and to an opening position of the outlet; and a hydraulic resistance that is provided along the feeding channel upstream of the annular sealing seat to balance the forces acting upon the shutter.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: November 22, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Stefano Petrecchia, Andrea Cobianchi
  • Method for zone controlling a wastegate in a turbocharged internal combustion engine
    Patent number: 8055436
    Abstract: A method for controlling the wastegate in a turbocharged internal combustion engine including the steps of: determining, during a design phase, a control law which provides an objective opening of a controlling actuator of the wastegate according to the supercharging pressure; determining an objective supercharging pressure; measuring an actual supercharging pressure; determining a first open loop contribution of an objective position of a controlling actuator of the wastegate by means of the control law and according to the objective supercharging pressure; determining a second closed loop contribution of the objective position of the controlling actuator of the wastegate; and calculating the objective position of the controlling actuator of the wastegate by adding the two contributions.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: November 8, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Marco Panciroli, Francesco Alunni, Stefano Sgatti
  • AUTOMATIC MANUAL TRANSMISSION PROVIDED WITH PARKING LOCK DEVICE
    Publication number: 20110259704
    Abstract: An automatic manual transmission having: at least one primary shaft; at least one secondary shaft; a plurality of gear pairs, each of which mechanically couples the primary shaft to the secondary shaft; a plurality of synchronizers, each of which is mounted coaxial to a shaft, is coupled to a gear of at least one gear pair, and is adapted to be actuated to engage the gear to the shaft; a plurality of forks, which actuate the synchronizers and are movable; a parking lock device which may be actuated to prevent the rotation of the secondary shaft; and a connecting device, which is mechanically connected on one side to a first fork and on the other side to the parking lock device to transmit the movement of the first fork to the parking lock device so as to control the activation and deactivation of the parking lock device itself by exploiting the movement of the first fork.
    Type: Application
    Filed: March 21, 2011
    Publication date: October 27, 2011
    Applicant: Magneti Marelli S.p.A.
    Inventors: Giuseppe Medico, Andrea Palazzetti, Giovanni Luigi Antonini, Fabrizio Amisano
  • Integrated control system for an internal-combustion engine of a motorcycle provided with a gas knob and acquisition system for detecting the angular position of a knob for the gas of a motorcycle
    Patent number: 8046151
    Abstract: An acquisition system for detecting the angular position of a gas knob of a motorcycle; the acquisition system is provided with: a fixed supporting body; a mobile element, which is mounted mobile in the supporting body; a transmission device, mechanically connected to the gas knob and to the mobile element for transmitting the motion from the gas knob to the mobile element itself; and a main position sensor, which is carried by the supporting body, is coupled to the mobile element for determining the angular position of the mobile element, and is designed to provide two mutually redundant measurements of the angular position of the mobile element.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: October 25, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Giuseppe Gamberini, Claudio Grossi, Roberto Piciotti, Maurizio Fiorentini, Massimo Zanotti, Loris Lambertini, Stefano Musolesi
  • METHOD OF DETERMINING OPENING OF AN INTERNAL COMBUSTION ENGINE INTAKE VALVE
    Publication number: 20110167900
    Abstract: A method of determining opening of an intake valve of an internal combustion engine, the method including the steps of: determining the time pattern of an intake pressure in an intake manifold of the internal combustion engine, the time pattern of the rotation speed of a drive shaft of the internal combustion engine, or the time pattern of a voltage at the terminals of a battery of the internal combustion engine; determining an intake-frequency component of the intake pressure, the rotation speed, or the voltage; and determining opening of the intake valve as a function of the intake-frequency component of the intake pressure, and also as a function of the intake-frequency component of the rotation speed or voltage.
    Type: Application
    Filed: September 21, 2010
    Publication date: July 14, 2011
    Applicant: MAGNETI MARELLI S.P.A.
    Inventors: Massimo Zanotti, Fabio Sensi, Marco Panciroli, Andrea Leoni, Francesco Alunni, Filippo Cavanna
  • METHOD FOR CONTROLLING THE MOVEMENT OF A COMPONENT THAT MOVES TOWARDS A POSITION DEFINED BY A LIMIT STOP IN AN INTERNAL COMBUSTION ENGINE
    Publication number: 20110166766
    Abstract: A method for controlling the movement of a component that moves towards a position defined by a limit stop in an internal combustion engine; the control method comprises the steps of detecting, by means of at least one acoustic microphone, the intensity of the microphonic signal generated by the impact of the component against the limit stop; and determining the impact instant and/or the impact speed of the component against the limit stop by analyzing the intensity of the microphonic signal generated by the impact.
    Type: Application
    Filed: December 28, 2010
    Publication date: July 7, 2011
    Applicant: Magneti Marelli S.p.A.
    Inventors: Marco Panciroli, Stefano Sgatti
  • METHOD FOR OPERATING AN ELECTRONIC CONTROL UNIT DURING A CALIBRATION PHASE
    Publication number: 20110125865
    Abstract: A method for operating an electronic control unit during a calibration phase; the method contemplating the steps of: dividing an area of a FLASH storage memory connected to a microprocessor in two pages between them identical and redundant, each of which is aimed at storing all the calibration parameters used by a control software; and using the two pages alternatively so that a first page contains the values of the calibration parameters and is queried by the microprocessor, while a second page is cleared and made available to store the updated values of the calibration parameters.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 26, 2011
    Applicant: MAGNETI MARELLI S.P.A.
    Inventors: Daniele Garofalo, Roberto Valacca, Paolo Marceca
  • Control method of an electronic injection fuel feeding system
    Patent number: 7942133
    Abstract: A control method of an electronic injection fuel feeding system for an internal combustion engine and displaying at least one injector and a non-continuous flow rate fuel pump actuated by a an actuator device; the control method includes the steps of: determining the desired fuel amount which must be injected at each cycle of the internal combustion engine; driving the injector for injecting the desired fuel amount at each cycle of the internal combustion engine; determining an optimal pumping frequency of the actuator device of the fuel pump according to the desired fuel amount which must be injected at each cycle of the internal combustion engine; and actuating the actuator device of the fuel pump at the optimal pumping frequency.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: May 17, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Andrea Alessandri, Fabrizio Naccarato, Maurizio Fiorentini, Massimo Mattioli
  • FUEL PUMP WITH REDUCED SEAL WEAR FOR A DIRECT INJECTION SYSTEM
    Publication number: 20110108007
    Abstract: A fuel pump for a direct injection system having: at least one pumping chamber, a piston which is slidingly mounted inside the pumping chamber in order to cyclically vary the volume of the pumping chamber, an intake duct connected to the pumping chamber and regulated by an inlet valve, a delivery duct connected to the pumping chamber and regulated by a one-way valve that only allows outgoing fuel flow from the pumping chamber, and an annular seal, which is placed in a seat made below the pumping chamber around a lower portion of the piston and has the function of preventing fuel leakage along the side wall of the piston.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 12, 2011
    Applicant: MAGNETI MARELLI S.P.A.
    Inventors: Luca Mancini, Daniele De Vita, Massimo Mattioli
  • FUEL PUMP WITH AN IMPROVED DAMPING DEVICE FOR A DIRECT INJECTION SYSTEM
    Publication number: 20110103985
    Abstract: A fuel pump for a direct injection system having: at least one pumping chamber; a piston which is mounted sliding inside the pumping chamber in order to vary cyclically the volume of the pumping chamber; an intake duct connected to the pumping chamber and regulated by an inlet valve; a delivery duct connected to the pumping chamber and regulated by a one-way delivery valve which allows exclusively a fuel flow outgoing from the pumping chamber; and a damping device, which is placed along the intake duct upstream of the inlet valve, and comprises at least one elastically deformable damping body that has internally a closed chamber filled with pressurized gas and composed of two metal plates cup shaped and welded together at their annular edges by an annular weld without interruptions.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 5, 2011
    Applicant: MAGNETI MARELLI S.P.A.
    Inventors: Luca Mancini, Daniele De Vita, Massimo Mattioli
  • Direct injection assembly of the common-rail type provided with a shut-off valve for controlling the delivery of a high-pressure fuel pump
    Patent number: 7900602
    Abstract: An embodiment of a direct injection assembly of the common-rail type provided with a fuel tank, a manifold, a high-pressure pump for feeding the fuel to the manifold, a low-pressure pump provided with an intake pipe and connected to the high-pressure pump by means of the intake pipe to feed the fuel taken from the tank to the high-pressure pump; and a shut-off valve of the ON/OFF type which is arranged along the intake pipe to adjust the delivery of the fuel fed to the high-pressure pump; and a pressure regulator, which is arranged along the intake pipe immediately upstream of the shut-off valve to keep the pressure of the fuel inside the intake pipe under a predetermined value.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: March 8, 2011
    Assignee: Magneti Marelli S.p.A.
    Inventors: Michele Petrone, Pasquale Dragone, Massimo Mattioli, Daniele De Vita, Andrea Cobianchi