Patents Assigned to Renault Trucks
  • Patent number: 9512786
    Abstract: A valve actuation mechanism includes a rocker adapted for opening a cylinder valve, via an activation piston movable in a piston chamber of the rocker under action of a fluid pressure raise in the piston chamber, from a first position in which an engine operating function is deactivated to a second position, in which the engine operating function is performed, the rocker including a controlled blocking valve, wherein the control of the blocking, valve between its open state and its blocking state is performed by action of a force exerted by the fluid pressure in the piston chamber on a valve member of the blocking valve which is exposed to the fluid pressure in the piston chamber.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: December 6, 2016
    Assignee: Renault Trucks
    Inventor: Romain Le Forestier
  • Patent number: 9404570
    Abstract: A method is provided for controlling an automated gearbox of an automotive vehicle that is adapted to work in a first automatic mode and at least one second driver initiated mode which is different from the first mode. This method includes monitoring the vehicle driving behavior is monitored, analyzing the vehicle driving behavior is and determining it to be satisfactory or non satisfactory and, when the driver requests switch of the automatic gearbox from the first mode to the second mode, the switch order is followed only if the vehicle driving behavior is determined to be satisfactory, and/or, when the automated gearbox is in a second driver initiated mode, causing a switch of the gearbox to a first automatic mode if the vehicle driving behavior is determined to be non-satisfactory. The system includes an arrangement to automatically perform these steps.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: August 2, 2016
    Assignee: Renault Trucks
    Inventor: Raphael Ribero
  • Publication number: 20160053648
    Abstract: A process is provided for regenerating an exhaust gas after-treatment device in an exhaust line of an internal combustion engine arrangement, the exhaust line including a particle filter. The process includes identifying when soot loading of the particle filter exceeds a predetermined level. After that, temperature of exhaust gases at the particle filter is maintained within a first temperature range until at least one of a predetermined period of time has lapsed or a determination is made that soot loading of the particle filter is below the predetermined level. After that, the temperature of the exhaust gases at the particle filter is increased to within a second temperature range above the first temperature range. An internal combustion engine arrangement is also disclosed.
    Type: Application
    Filed: April 3, 2013
    Publication date: February 25, 2016
    Applicants: RENAULT TRUCKS, VOLVO TRUCK CORPORATION
    Inventors: Eduard Emil IOJOIU, Raphaël POURRET, Martin PETERSSON, Björn HÄGGENDAL, Johan DAHL
  • Patent number: 9227556
    Abstract: A lighting control system and a lighting control method to implement, in an automotive vehicle, external running lights in different available lighting configurations are provided. The lighting control method includes detecting at least one environment parameter, selecting among the different available lighting configurations and depending on the parameter, which lighting configurations can be implemented, depending on the parameter, defining in which order the selected lighting configurations are implemented when an input device is manually actuated, detecting a manual actuation on the input device, depending on a motion of the input device or a motion on the input device, implementing at least one lighting configuration that is chosen among the selected lighting configurations according to the implementation order.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: January 5, 2016
    Assignee: Renault Trucks
    Inventors: François Longueville, Philippe Crave
  • Patent number: 9211792
    Abstract: A vehicle fuel tank arrangement is provided for a fuel that includes at least a first fluid and a second fluid. The tank arrangement includes a tank and a partition wall arranged inside the tank in order to create at least a first compartment for storing the first fluid and a second compartment for storing the second fluid. The position of the partition all inside the tank can be changed to set the volume of the first compartment and the second compartment to predetermined values.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: December 15, 2015
    Assignee: Renault Trucks
    Inventors: Iyad Balloul, Jean-Christophe Palmer, Michel Vanvolsem
  • Publication number: 20150217678
    Abstract: A lighting control system and a lighting control method to implement, in an automotive vehicle, external running lights in different available lighting configurations are provided. The lighting control method includes detecting at least one environment parameter, selecting among the different available lighting configurations and depending on the parameter, which lighting configurations can be implemented, depending on the parameter, defining in which order the selected lighting configurations are implemented when an input device is manually actuated, detecting a manual actuation on the input device, depending on a motion of the input device or a motion on the input device, implementing at least one lighting configuration that is chosen among the selected lighting configurations according to the implementation order.
    Type: Application
    Filed: August 22, 2012
    Publication date: August 6, 2015
    Applicant: RENAULT TRUCKS
    Inventors: François Longueville, Philippe Crave
  • Publication number: 20150204250
    Abstract: A valve actuation mechanism includes a rocker adapted for opening a cylinder valve, via an activation piston movable in a piston chamber of the rocker under action of a fluid pressure raise in the piston chamber, from a first position in which an engine operating function is deactivated to a second position, in which the engine operating function is performed, the rocker including a controlled blocking valve, wherein the control of the blocking, valve between its open state and its blocking state is performed by action of a force exerted by the fluid pressure in the piston chamber on a valve member of the blocking valve which is exposed to the fluid pressure in the piston chamber.
    Type: Application
    Filed: September 25, 2012
    Publication date: July 23, 2015
    Applicant: RENAULT TRUCKS
    Inventor: Romain Le Forestier
  • Patent number: 9052009
    Abstract: This lubrication system for a differential of a driven axle on an automotive vehicle includes a sump in which is located a crown wheel driven by a pinion, the crown wheel being fast in rotation with a carrier, and a main lubricant tank having an inlet port and at least one outlet port. Rotation of the crown wheel causes lubricant to be transferred from the sump to the main tank via the inlet port, and the outlet port allows the lubricant to pass from the main tank to the sump. The lubrication system includes an auxiliary lubricant tank located in the sump, adapted to be filled in with lubricant by rotation of the crown wheel, and an arrangement to convey lubricant from auxiliary tank to a lubricant needing portion of the differential.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: June 9, 2015
    Assignee: Renault Trucks
    Inventor: Thomas Barillot
  • Patent number: 8991341
    Abstract: A valve actuation mechanism for an internal combustion engine includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a opening actuator of each cylinder, via an activation piston of the rocker movable with respect to the rocker under action of a fluid pressure raise in a chamber, from a first position to a second position, in which a cam follower of the rocker is adapted to read at least one auxiliary valve lift sector of a cam of the camshaft so as to perform an engine operating function. Each rocker includes a valve for releasing fluid from the chamber, wherein the valve actuation mechanism includes, for each rocker, a stopper fast with a housing of the engine and adapted to exert, on a member of the rocker, a variable force for opening the fluid releasing valve.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: March 31, 2015
    Assignee: Renault Trucks
    Inventor: Romain Le Forestier
  • Publication number: 20150083056
    Abstract: A vehicle internal combustion engine arrangement includes an internal combustion reciprocating piston engine, and an exhaust line capable of collecting exhaust gases from the engine, a waste heat recovery system carrying a working fluid in a loop, in which the working fluid is successively compressed, heated in a heat exchanger by at least one engine fluid, and expanded in a first expander, a first compressor located in the exhaust line and mechanically connected to the first expander of the waste heat recovery system.
    Type: Application
    Filed: May 10, 2012
    Publication date: March 26, 2015
    Applicant: RENAULT TRUCKS
    Inventors: Marc Lejeune, Dimitri Lortet
  • Publication number: 20150087465
    Abstract: A differential control system for a motor vehicle such as a truck including at least one differential includes at least one differential lock which is able to operate the differential into at least a locked or an unlocked state, a controller that controls the differential lock, a manually operable control member freely rotating bidirectionally around at least one axis, an encoder connected to the control member to convert a rotation of the control member into a signal fed to the controller which controls the differential lock in order to operate the differential into a locked or an unlocked state.
    Type: Application
    Filed: May 2, 2012
    Publication date: March 26, 2015
    Applicant: RENAULT TRUCKS
    Inventors: François Longueville, Philippe Crave
  • Patent number: 8974008
    Abstract: A wheel assembly includes a fixed axle spindle, a rotating drive shaft extending inside the axle spindle, a bearing, a hub, a brake disc, and a wheel rim. An inner ring of the bearing is mounted on the spindle, the hub is mounted on an outer ring of the bearing and the drive shaft, the brake disc and the rim are fast in rotation with the hub. The drive shaft is mounted on the hub, the brake disc is mounted on the drive shaft and the rim is mounted on the brake disc, in that order, from an interior side to an exterior side of the wheel assembly with respect to a vehicle provided with said wheel assembly.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: March 10, 2015
    Assignee: Renault Trucks
    Inventor: Gilles Dejean
  • Publication number: 20150034126
    Abstract: A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions.
    Type: Application
    Filed: June 20, 2013
    Publication date: February 5, 2015
    Applicants: Volvo Truck Corporation, Renault Trucks
    Inventors: Albin Hedman, Gert-Ove Wahlström, Tobias Stålfors, Ervin Omerspahic, Ladislal Verbo
  • Patent number: 8925584
    Abstract: A hydraulic pilot control arrangement for a spool valve is provided, wherein the spool of the spool valve is biased towards a central position. The arrangement includes a first and a second pilot hydraulic line connected to opposite sides of the spool of the spool valve and a pilot pressure regulating arrangement is provided for selectively establishing or removing a pilot pressure in each of the first and second lines. The arrangement includes a damping device including a chamber divided into a first and a second pressure compartment by a sliding piston, the first and second pressure compartments being connected respectively to the first and second pilot hydraulic lines, and the piston is biased towards a rest position in the chamber.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: January 6, 2015
    Assignee: Renault Trucks
    Inventors: Christian Balmonet, David Lazzaro
  • Patent number: 8926001
    Abstract: A vehicle includes a cargo body having a roof that is deformable. The deformable roof can be placed in a neutral position, where the deformable roof forms substantially a flat surface parallel to a floor of the cargo body, or in at least one aerodynamic position, where at least a rear portion of the deformable roof is lowered with respect to the neutral position.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: January 6, 2015
    Assignee: Renault Trucks
    Inventors: Paolo Ballarin, Thomas Reiche
  • Patent number: 8905461
    Abstract: A truck has a cabin, the cabin having a roof and an aerodynamic roof deflector panel mounted on the roof and covering at least partly the roof, thereby delimiting a space extending between the roof and the panel. The panel includes at least a member movable between a first position and a second position. In the second position of the movable member, an air passage is created in front of the space. In the first position, the air passage is closed or substantially closed.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: December 9, 2014
    Assignee: Renault Trucks
    Inventor: Frédéric Laudet
  • Patent number: 8893494
    Abstract: An internal combustion engine includes a plurality of cylinders, an air intake line and an exhaust line collecting exhaust gas. The engine also includes an EGR line for rerouting a part of the exhaust gas from the exhaust line towards the air intake line and at least a first turbocharger comprising a first turbine driven by the exhaust gas flowing towards the atmosphere, linked to a first compressor located on the air intake line. The engine further includes a variable geometry EGR turbine located on the EGR line, driven by the EGR gas flowing in the EGR line. Thus, thanks to the pressure reduction occurring in the turbine, the EGR gas temperature is lowered, and less cooling power from the engine cooling system is required to cool down the EGR.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: November 25, 2014
    Assignee: Renault Trucks
    Inventors: Nicolas Auffret, Nicolas Dronniou
  • Patent number: 8887679
    Abstract: A valve actuation mechanism for an internal combustion engine includes rockers moved by a camshaft, each rocker being adapted to exert a valve opening force on at least a portion of a valve actuation mechanism of each cylinder belonging to a housing of the engine, via an engine brake activation piston, housed in a bore of the rocker, and movable with respect to the rocker under action of a fluid pressure raise in a chamber fluidly linked to the bore, from a first position, in which an engine brake function is deactivated, to a second position, in which a roller of the rocker reads at least one engine brake bump of a cam of the camshaft so as to perform the engine brake function. Each rocker includes a discharge valve movable in translation with respect to the rocker, adapted to reduce fluid pressure in the chamber.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: November 18, 2014
    Assignee: Renault Trucks
    Inventors: Benjamin Girard, Romain Le Forestier
  • Publication number: 20140336888
    Abstract: A method is provided for controlling an automated gearbox of an automotive vehicle that is adapted to work in a first automatic mode and at least one second driver initiated mode which is different from the first mode. This method includes monitoring the vehicle driving behavior is monitored, analyzing the vehicle driving behavior is and determining it to be satisfactory or non satisfactory and, when the driver requests switch of the automatic gearbox from the first mode to the second mode, the switch order is followed only if the vehicle driving behavior is determined to be satisfactory, and/or, when the automated gearbox is in a second driver initiated mode, causing a switch of the gearbox to a first automatic mode if the vehicle driving behavior is determined to be non-satisfactory. The system includes an arrangement to automatically perform these steps.
    Type: Application
    Filed: December 15, 2011
    Publication date: November 13, 2014
    Applicant: RENAULT TRUCKS
    Inventor: Raphael Ribero
  • Publication number: 20140318497
    Abstract: A vehicle fuel tank arrangement is provided for a fuel that includes at least a first fluid and a second fluid. The tank arrangement includes a tank and a partition wall arranged inside the tank in order to create at least a first compartment for storing the first fluid and a second compartment for storing the second fluid. The position of the partition all inside the tank can be changed to set the volume of the first compartment and the second compartment to predetermined values.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 30, 2014
    Applicant: RENAULT TRUCKS
    Inventors: Iyad Balloul, Jean-Christophe Palmer, Michel Vanvolsem