Patents Assigned to Renault s.a.s.
  • Publication number: 20170350945
    Abstract: A method detects defects in an electrical power storage system including at least one battery. The method includes applying an instruction for charging or discharging the battery. The method also includes measuring the current passing through the battery during application of the instruction and calculating m×n mean errors (eTj(tij))1?j?m, 1?i?n between the measured current and the theoretical current of the instruction in m×n time intervals ([tij, tij+Tj])1?j?m, 1?i?n, respectively. The method also includes calculating, for each j between 1 and m, ej=max(eTj (tij)), where i=1, . . . , n. Lastly, the method includes incrementing a counter Cj if ej completely or partially exceeds a predetermined threshold. A defect is detected if Cj exceeds a predetermined threshold.
    Type: Application
    Filed: October 16, 2015
    Publication date: December 7, 2017
    Applicant: RENAULT s.a.s.
    Inventors: Fehd BEN-AICHA, Do-Hieu TRINH, Philippe TOUSSAINT
  • Patent number: 9829095
    Abstract: 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: Grant
    Filed: March 13, 2014
    Date of Patent: November 28, 2017
    Assignee: RENAULT s.a.s.
    Inventors: Jean-Marie Vespasien, Vivien Lalleron
  • Patent number: 9827869
    Abstract: An electric power supply system for an electric vehicle, including a low-voltage network powering auxiliary devices of the vehicle and a high-voltage network powering a propulsion mechanism of the vehicle. The low-voltage network includes a low-voltage battery storing electric energy and a first converter connected to the high-voltage network powering the low-voltage network, while the high-voltage network includes a high-voltage battery and a switching mechanism isolating the high-voltage battery. The system further includes a first supervisor controlling the switching mechanism and a first monitoring mechanism determining if the charge of the low-voltage battery is below or above a first threshold, the supervisor configured to control the switching mechanism to connect the high-voltage battery if the first monitoring mechanism indicates the battery charge is below the first threshold.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 28, 2017
    Assignee: RENAULT s.a.s.
    Inventor: Eric Chauvelier
  • Patent number: 9827859
    Abstract: A method of managing charging of a traction battery and corresponding devices, the traction battery including a thermal regulating system, the thermal regulating system including a compressor, the method including transmitting information between a control device for the compressor and a device for managing the charging of the traction battery, before activating the compressor or before activating a device for charging the traction battery.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 28, 2017
    Assignee: RENAULT s.a.s.
    Inventors: Eudes Quetant, Virginie Goutal, Christophe Ripoll, Eric Chauvelier
  • Publication number: 20170334307
    Abstract: A method for managing the charge state of a battery includes activating a float-charge phase of the battery, in which the battery is intermittently charged with a view to maintaining the charge state thereof above a predetermined target charge-state value. The method also includes detecting critical conditions of use of the battery likely to prevent the battery charge state from being maintained above the predetermined target charge-state value and increasing the predetermined target charge-state value when the critical conditions of use of the battery are detected, such as to anticipate activating the battery float-charge phase.
    Type: Application
    Filed: November 2, 2015
    Publication date: November 23, 2017
    Applicant: RENAULT s.a.s.
    Inventors: Thomas MIRO-PADOVANI, Abdel-Djalil OURABAH
  • Publication number: 20170335803
    Abstract: A method for diagnosing operation of a valve to purge a canister of an internal combustion engine, the method, carried out during a purge, including: a) detecting, at an instant to, that the purge valve is open; b) executing a forced closing of the valve at an instant t2; c) measuring a pressure P1m of the intake manifold and calculating a corresponding modelled pressure P1c, at an instant t1 between the instant t0 and the instant t2; d) measuring a pressure of the manifold P2m and calculating a corresponding modelled pressure P2c, at an instant t3 after the instant t2; e) calculating a deviation E1 between P1m and P1c and calculating a deviation E2 between P2m and P2c; f) calculating a criterion C=E1?E2; and g) diagnosing malfunction of the purge valve if the criterion C is lower than a predetermined threshold value Cs.
    Type: Application
    Filed: October 23, 2015
    Publication date: November 23, 2017
    Applicant: RENAULT s.a.s.
    Inventors: David ISSARTEL, Cedric HARTER
  • Patent number: 9821711
    Abstract: A lighting system for a motor vehicle includes a printed circuit board equipped with light emitting diodes for emitting light beams in lighting directions and an optical module formed to propagate and transmit the light beams. The optical module has a reception surface to receive the light beams and an emission surface for retransmitting the light beams. The lighting system also includes at least one element for masking the light beams emitted by the light emitting diodes. The element for masking which extends from at least one of the light emitting diodes toward the reception surface and substantially parallel to the lighting direction of the at least one light emitting diode, over at least a part of the periphery of the at least one light emitting diode and over at least a part of a distance separating the at least one light emitting diode and the reception surface.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 21, 2017
    Assignee: RENAULT S.A.S.
    Inventor: Francois Grosdidier
  • Patent number: 9825342
    Abstract: A conduit for cooling a heating element includes an inlet mouth for entry of a fresh air flow, a plurality of cooling channels, the fresh air flow dividing between the channels into a plurality of air flows to collect heat produced by the heating element, an outlet mouth for an exit of a heated air flow, the heated air flow resulting from a merger of the plurality of air flows after the heat collection, and air deflectors in the outlet mouth facing the channel outlets situated closest to an exit opening of the outlet mouth relative to the other channel outlets to prevent at least one of the plurality of air flows from exiting the cooling channels. The air deflectors extend over lengths which reduce as distances from the opening of the outlet mouth increase to guide the air flows towards the exit opening of the outlet mouth.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: November 21, 2017
    Assignee: RENAULT s.a.s.
    Inventor: Maria-Lourdes Cano-Ramirez
  • Patent number: 9821817
    Abstract: An operating method for a vehicle includes driving in a manual mode, in which a longitudinal movement and a lateral movement are controlled by a human driver, and driving in an autonomous mode, in which the longitudinal movement and the lateral movement are controlled by an automated system. In the method, driving in semi-autonomous mode is activated from the autonomous mode by the human driver either resuming the longitudinal movement, such that the automated system continues to control the lateral movement, or resuming the lateral movement, such that the automated system continues to control the longitudinal movement. In the semi-autonomous mode, one or more automatic stop operations brake the vehicle when the human driver does not quickly resume control of the lateral movement and the longitudinal movement, which continues to be controlled by the automated system.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: November 21, 2017
    Assignee: RENAULT s.a.s.
    Inventors: Francois Desnoyer, Sabine Langlois, Frederic Horps
  • Publication number: 20170327157
    Abstract: The invention concerns a method for producing a hybrid-structure part of a motor vehicle, comprising shaping of a sheet of metallic material, the provision of a sheet of composite material, application of a layer of connecting material on a face of said metallic material sheet or on a face of said composite material sheet, the shaping of a hybrid element by shaping said composite material sheet to the shape of said metallic material sheet and joining the composite material sheet to the metallic material sheet by means of said connecting material layer, and the production of ngidification elements by overmoulding using a polymer material.
    Type: Application
    Filed: December 21, 2015
    Publication date: November 16, 2017
    Applicants: RENAULT s.a.s., COMPAGNIE PLASTIC OMNIUM
    Inventors: Philippe JAUNASSE, Laurent ROCHEBLAVE
  • Publication number: 20170320524
    Abstract: A range includes at least two types of motor vehicle including a first vehicle type with a sheet metal roof and a second type with a glass roof. Each of these vehicles includes a body shell structure having side rails with an outer wall facing an outside of the vehicle and an inner wall, forming an interior lining, facing an inside of the vehicle. The side rails are identical for both types of motor vehicle and selectively form a low second support zone for a longitudinal lateral edge of the sheet metal roof of the vehicle of the first type or a high first support zone for a lower face of the glass roof of the vehicle of the second type.
    Type: Application
    Filed: October 16, 2015
    Publication date: November 9, 2017
    Applicant: RENAULT s.a.s.
    Inventor: Remi DEGAUGUE
  • Patent number: 9809252
    Abstract: A motor vehicle rear structure includes an underframe component to support a motor vehicle floor and in which a tunnel is formed, an axle component including a central part and two lateral parts that define a space to accommodate a component of the vehicle, an articulation device including a first articulation element and a second articulation element which are able to pivot relative to one another, and at least one front reinforcing element fixed to the second articulation element and to the tunnel. The rear structure is arranged in such a way that said at least one front reinforcing element allows at least some of a load in the direction of travel of the motor vehicle derived from the axle component to be transmitted to the tunnel.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 7, 2017
    Assignee: RENAULT s.a.s.
    Inventors: Jerome Caillard, Thierry Hlubina, Olivier Rioult
  • Publication number: 20170313195
    Abstract: Disclosed is a method for driving an range extending system for a motor vehicle equipped with an electric motor (2) adapted to be supplied with electric current by a traction battery (3), the range extending system including an range extender (1) that can be activated to supply the traction battery and/or the electric motor with electric current and a cooling circuit (10) for the range extender, in which provision is made to acquire a state of charge of the traction battery and, if the state of charge is below a charge threshold, to activate the range extender. Additionally, the charge threshold has a variable value, which is a function of an outside temperature of the air outside the motor vehicle.
    Type: Application
    Filed: October 21, 2015
    Publication date: November 2, 2017
    Applicant: RENAULT S.A.S.
    Inventor: Gerard OLIVIER
  • Publication number: 20170316272
    Abstract: A driving assistance system includes at least one receiving module designed to receive perception data from a driving environment, a control module designed to control an on-board system, a conversion module designed to generate, on the basis of the perception data, a plurality of instances of classes of an ontology stored by the driving assistance system and defining relations between classes, and a reasoning tool designed to deduce, on the basis of the ontology, at least one property of an instance of the plurality. The control module is designed to control the on-board system on the basis of the deduced property.
    Type: Application
    Filed: July 23, 2015
    Publication date: November 2, 2017
    Applicant: RENAULT s.a.s
    Inventors: Alexandre ARMAND, Javier IBANEZ-GUZMAN, David FILLIAT
  • Patent number: 9802491
    Abstract: A method controls regenerative braking of a vehicle equipped with regenerative brakes and with a separate braking apparatus. The method is designed to generate a regenerative braking setpoint as a function of a braking request signal coming from a driver pedal of the vehicle, according to a first setpoint generation mode. The method includes receiving a flag signal coming from an active safety system of the vehicle, detecting value changes of the received flag signal, when the received flag signal changes value to take a value corresponding to activation of regulation by the active safety system, incrementing a counter value, and comparing the counter with a threshold. When the counter reaches the threshold, a control signal is formed to end the generation of the regenerative braking setpoint according to the first calculation mode and to impose generation of the regenerative braking setpoint according to a second calculation mode.
    Type: Grant
    Filed: July 4, 2014
    Date of Patent: October 31, 2017
    Assignee: RENAULT S.A.S.
    Inventor: Hamid Azzi
  • Patent number: 9804482
    Abstract: A rear-projection display device comprises a mobile light source supplying a light beam of at least one wavelength, a holographic mirror reflecting only said at least one wavelength, an absorbent screen and a transmissive diffuser, the absorbent screen being placed on the rear face of the holographic mirror, the elements being arranged such that the beam from the light source is reflected on the holographic mirror in order to sweep the surface of the transmissive diffuser.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: October 31, 2017
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, RENAULT S.A.S.
    Inventors: Umberto Rossini, Stéphane Getin, Martin Pertenais, Frédéric Sermet, Stéphane Regnier
  • Patent number: 9802607
    Abstract: The invention relates to a method for synchronising the common speed (? p) of two concentric primary shafts (1, 6) of a hybrid transmission in a hybrid operating mode wherein said two shafts are rotatably connected by a first coupling means (5), with the speed (? s) of a secondary transmission shaft (10) comprising at least one idler pinion for allowing the coupling of one of said pinions (11, 12) to the shaft (10) thereof by closing a second coupling means (13) that does not have mechanical synchronisation bodies, the torque (Te) of the electric machine being temporarily reduced during the synchronisation phase in order to meet the conditions of a perfect coupling when the value thereof caps at an upper limit value (Temax) or a lower limit value (Temin).
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 31, 2017
    Assignee: RENAULT s.a.s.
    Inventor: Abdelmalek Maloum
  • Publication number: 20170310206
    Abstract: A device and method for charging a battery from a three-phase network, having a degraded charging mode, for example a battery of an electric traction automotive vehicle. The device includes a first filtering stage configured to be connected to the three-phase network, a voltage step-down stage connected to the filtering stage, a voltage step-up stage configured to be connected to the battery and coupled to the voltage step-down stage via an inductive component, a regulating unit configured to impose cyclic switching ratios on the voltage step-down stage and on the voltage step-up stage, and a device for comparing operating temperature of the regulating unit with a threshold value and controlling the charging based on two phases of the three-phase network when the operating temperature of the regulating unit exceeds the threshold value.
    Type: Application
    Filed: October 12, 2015
    Publication date: October 26, 2017
    Applicant: RENAULT s.a.s.
    Inventors: Pedro KVIESKA, Ludovic MERIENNE
  • Publication number: 20170305262
    Abstract: An air guide is assembled on a structural component of a motor vehicle by at least two fasteners that each include a first component and a second component. The fasteners project laterally from a frame defined by lateral edges of the structural component in a direction substantially perpendicular to the fastening direction. The first component is joined to the air guide by a retainer that breaks following an impact directed substantially parallel to the fastening direction. Lateral edges of the air guide exhibit guide parts situated substantially opposite second components. Each guide part guides a lateral edge of the structural component supporting a second component inside the air guide following a breakage of the retainer of the first component working together with the second component, the breakage resulting in movement of the air guide towards the structural component in a direction substantially parallel to the fastening direction.
    Type: Application
    Filed: July 10, 2017
    Publication date: October 26, 2017
    Applicant: RENAULT s.a.s.
    Inventors: Joseph BUI, Benoit JANIER, Gilles DAUBOIN, Stephane GREVET
  • Publication number: 20170308259
    Abstract: A touch interface includes a display screen and detects an approach and a position of a user's finger with respect to the screen. The interface displays at least one first graphical element associated with a first touch selection zone and lying in a first region and at least one second graphical element superimposed on a second touch selection zone, and lying in a second region distinct from the first region. The interface estimates a trajectory of a point of the finger and a point of impact of the trajectory on the screen. The interface displaces, when the point of impact is detected in one of the regions, the graphical element of the region and the associated touch selection zone in the direction of the point of impact, and then, when the point of impact exits the region, restore the display of the graphical element to an initial state.
    Type: Application
    Filed: November 19, 2015
    Publication date: October 26, 2017
    Applicant: RENAULT s.a.s.
    Inventor: Stephane REGNIER