Patents Assigned to Renault Trucks
  • Publication number: 20120115668
    Abstract: A drive arrangement is provided for at least one auxiliary equipment of a vehicle, wherein the vehicle includes a driveline including a gearbox. The drive arrangement includes a power split device having at least three input/output couplings, the speed of all of the at least three separate couplings being interdependent but not being with a fixed ratio one to the other. A first coupling is connected to the driveline, a second coupling is connected to an electric machine, and a third coupling is connected to the at least one auxiliary equipment. The first coupling is connected to the input shaft of the gearbox.
    Type: Application
    Filed: July 22, 2009
    Publication date: May 10, 2012
    Applicant: RENAULT TRUCKS
    Inventor: Thomas Justin
  • Publication number: 20120111001
    Abstract: An engine arrangement of the type including an internal combustion engine having an EGR line, wherein at least one turbine is located on an exhaust line, is provided. The arrangement includes a water vapor generating arrangement using exhaust gases energy to transform liquid water into water vapor. The water vapor is injected in the exhaust line upstream of the turbine. The EGR line is branched off the exhaust line upstream of the turbine and the water vapor generating arrangement includes at least one EGR/water heat exchanger for exchanging heat between the EGR line and the water to be vaporized.
    Type: Application
    Filed: July 21, 2009
    Publication date: May 10, 2012
    Applicant: RENAULT TRUCKS
    Inventor: Nicolas Espinosa
  • Patent number: 8160793
    Abstract: A vehicle brake system can include a service brake system and a park brake system wherein, the service brake system includes a service brake chamber is delimited by a service brake displaceable wall upon which a brake pushrod is fixed, the brake pushrod is connected to a vehicle braking arrangement and is capable of moving under a pneumatic pressure from a first position whereby the braking arrangement is released to a second position whereby the braking arrangement is actuated, the park brake system having an actuating arrangement capable of pushing the brake pushrod into its second position. This method is based on measuring the volume of the service brake chamber as the volume of the service brake chamber is a parameter which is representative of the actual position of the brake push rod and thus is representative of the actual park brake status.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: April 17, 2012
    Assignee: Renault Trucks
    Inventor: Pierre Teyssier
  • Publication number: 20120067311
    Abstract: A method is provided for operating an internal combustion engine having at least one cylinder, said engine operating according to a four stokes cycle. The engine includes at least one controlled intake port to control communication of the combustion chamber with an intake line. The intake port is controlled to achieve a main open phase mainly during the intake stroke. The intake port is controlled to achieve an auxiliary open phase during the power stroke in view of heating the engine at cold start.
    Type: Application
    Filed: June 2, 2009
    Publication date: March 22, 2012
    Applicant: RENAULT TRUCKS
    Inventors: Nicolas Auffret, Romain Le Forestier
  • Publication number: 20120060775
    Abstract: An energy recovery system includes a main line capable of carrying the exhaust gases of an engine, at least a first and a second thermoelectric devices capable of producing electricity by Seebeck effect, the second thermoelectric device being located downstream from the first thermoelectric device, the thermoelectric devices each having an optimum temperature range and a highest admissible temperature. The optimum temperature range and the highest admissible temperature of the second thermoelectric device are lower than the optimum temperature range and the highest admissible temperature of the first thermoelectric device, respectively. The system further includes a controller for controlling the flow rate of the exhaust gases passing against the second thermoelectric device, in order to prevent the second thermoelectric device from being exposed to temperatures exceeding its highest admissible temperature.
    Type: Application
    Filed: March 31, 2009
    Publication date: March 15, 2012
    Applicant: RENAULT TRUCKS
    Inventor: Luc Aixala
  • Patent number: 8127722
    Abstract: A cooling circuit for the thermal engine of an automotive vehicle includes a main loop that includes a first exchanger for collecting the heat from a first heat source, a first radiator and a pump connected in series by ducts for the circulation of a cooling liquid, the temperature of the cooling liquid being kept under normal operation conditions at a temperature lower than or equal to a predetermined threshold value. The cooling circuit includes a first bypass of the main loop in parallel relative to said first radiator, the first bypass including sequentially, in the circulation direction of the cooling liquid, a second exchanger for collecting the heat from a second heat source and a second radiator connected in series by ducts for the circulation of the cooling liquid, the temperature of said cooling liquid at the outlet of said second exchanger being set, under normal operation conditions, at a temperature higher than or equal to the predetermined threshold value.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: March 6, 2012
    Assignee: Renault Trucks
    Inventors: Thomas Justin, Frederic Demarle
  • Patent number: 8061335
    Abstract: This internal combustion engine includes a plurality of cylinders, an air intake line, and an exhaust line. The internal combustion engine also includes a turbocharging system having at least one compressor stage and intake air cooling arrangement having at least one charge air cooler located upstream from the intake manifold. The internal combustion engine further includes an exhaust gas recirculation (EGR) line rerouting a portion of the engine's exhaust gas into the air intake line at a point located upstream from the at least one charge air cooler. This engine therefore uses an heat exchanger to cool the EGR gas. Thus, EGR gas mixed with intake air flows through at least one change air cooler before entering the engine cylinders. The efficiency of this cooler—generally of the air/water type—makes it possible to significantly decrease the EGR gas temperature before it enters the cylinders.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: November 22, 2011
    Assignee: Renault Trucks
    Inventors: Nicolas Auffret, Romain Montelimard
  • Publication number: 20110257810
    Abstract: An onboard vehicle control system includes a vehicle electronic control adapted to control at least one vehicle functionality, a human machine interface communicating with the vehicle electronic control and including a human input interface. The vehicle electronic control includes a preloaded configuration program for configuring the vehicle functionality and the vehicle electronic control is adapted to, upon manual entry of an activation code by a user with the human input interface, execute the preloaded configuration program which modifies the vehicle functionality settings.
    Type: Application
    Filed: December 30, 2008
    Publication date: October 20, 2011
    Applicant: RENAULT TRUCKS
    Inventor: Hugues Leger
  • Patent number: 8036792
    Abstract: The invention relates to a method for determining a set steering angle ?o of steered wheels of a vehicle comprising a tractor and a trailer that is articulated with regard to the tractor. This method makes it possible to produce a set value that can be used for various purposes. This set value can thus be used for controlling an actuator acting upon the steering angle or for being communicated in order to inform the driver. According to the invention, during reversing maneuvers: based on a target point C via which the driver would like the path of the vehicle to pass, an angle set value ?c between the axes of the trailer and of the tractor is determined according to said target point C and to the dimensions of the vehicle, and; the set steering angle ? of the steered wheels is determined according to a servo-system causing the measured angle ? between the axis of the trailer and the tractor to tend toward said angle set value ?c.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 11, 2011
    Assignee: Renault Trucks
    Inventor: Francois Dechamp
  • Publication number: 20110239643
    Abstract: A power assembly includes an internal combustion engine including an air intake line and an exhaust gas line having at least one heat exchanger. The power assembly further includes a Brayton cycle system capable of providing additional power to the main internal combustion engine and that includes a gas compressor, a fuel burning heater and a turbine linked to the compressor so that air is drawn into the compressor where it is pressurized, the pressurized air is further heated by flowing through at least one heat exchanger where it exchanges heat with exhaust gases from the main internal combustion engine, the heated and pressurized air is further heated by the fuel burning heater and is thereafter expanded through the turbine where a first fraction of the work extracted by the turbine is used to drive the compressor and a second fraction of the work extracted by the turbine is used to bring additional energy.
    Type: Application
    Filed: September 26, 2008
    Publication date: October 6, 2011
    Applicant: Renault Trucks
    Inventor: Marc LeJeune
  • Publication number: 20110231049
    Abstract: A method is provided for controlling operation of a hybrid automotive vehicle equipped with at least an internal combustion engine and an electric machine, each adapted to deliver torque to a driveline of the vehicle. This method includes at least the following steps: a) determination of the ability of the engine to deliver torque to an output shaft and allotment of a value to a first parameter on the basis of this determination, b) determination of the ability of the electric machine to deliver torque to its output shaft and allotment of a value to a second parameter on the basis of this determination, d) computation of a value of a global parameter, on the basis of the respective values of the first and second parameters, and e) generation of an electric or electronic signal representative of the value of the global parameter. The hybrid automotive vehicle of the invention includes means to generate an electronic signal depending on the ability of the engine and/or the electric machine to move the vehicle.
    Type: Application
    Filed: December 8, 2008
    Publication date: September 22, 2011
    Applicant: Renault Trucks
    Inventors: Philippe Le Brusq, Michel Lou Mottier, Michael Millet
  • Publication number: 20110231047
    Abstract: A vehicle includes an air compressor system for supplying compressed air to an air consuming circuit, wherein the vehicle includes an arrangement for determining that the vehicle is coasting. The compressor system is controllable to deliver compressed air at a first power rate and at least at a second higher power rate, and it is controlled to deliver compressed air at the second higher power rate when it is determined that the vehicle is coasting. A method for operating an air compressor system for such a vehicle is also provided.
    Type: Application
    Filed: November 28, 2008
    Publication date: September 22, 2011
    Applicant: RENAULT TRUCKS
    Inventors: Luc Aixala, Christophe Long, Philippe Le Brusq
  • Publication number: 20110208381
    Abstract: A method is provided for determining the ability of a driver of a hybrid vehicle to recover, via at least one recovery device, a part of the kinetic energy of the vehicle during its deceleration. This method includes: a) determination of a braking power generated by the recovery device at a given point of time, during deceleration of the vehicle, or of the braking energy generated by the recovery device for a deceleration of the vehicle; b) determination of the braking power or of the braking energy dissipated by each braking or retarding device of the vehicle, apart from the recovery device, at said point of time, or during said deceleration; c) computation of the sum of the braking powers or of the braking energies determined in steps a) and b); and d) computation of the ratio of the braking power or energy determined in step a) on the braking powers or braking energies sum determined in step c). The vehicle is equipped with an arrangement to perform such a method.
    Type: Application
    Filed: October 21, 2008
    Publication date: August 25, 2011
    Applicant: RENAULT TRUCKS
    Inventors: Phillippe Le Brusq, Richard Valayer
  • Publication number: 20110203270
    Abstract: This internal combustion engine system includes an internal combustion engine, an intake line, an exhaust line, a turbocharger, and an EGR assembly for recirculating a part of the exhaust gases. The EGR assembly has an EGR assembly inlet to collect the part of the exhaust gases, an EGR assembly outlet to allow the part of the exhaust gases towards the compressor. A particulate filter unit is also provided. In the exhaust line, a converter unit decreases nitrogen oxides. The particulate filter unit includes a first particulate filter component, in the exhaust line downstream of converter unit, which defines a first flow path; a second particulate filter component, in the EGR assembly, which defines a second flow path. The first and second particulate filter component are thermally connected, and the first and the second flow paths are separate.
    Type: Application
    Filed: November 6, 2008
    Publication date: August 25, 2011
    Applicant: Renault Trucks
    Inventor: Nicolas Dronniou
  • Patent number: 7992925
    Abstract: A vehicle has a door system having at least a front and a rear door leaf which are each movable between an open and a closed position with respect to the cabin structure. The vehicle includes a door locking system which is provided to lock the door leaves in their closed position in case of collision of the vehicle. The locking system includes a locking mechanism and a triggering mechanism having a front operational portion which is located in vicinity of a front end of the cabin structure so as to be displaced in case the front end of the cabin structure is deformed due to a collision, the displacement mechanically triggering the locking mechanism towards an engaged position.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: August 9, 2011
    Assignee: Renault Trucks
    Inventor: Jerome Lagrut
  • Patent number: 7980594
    Abstract: A chassis frame includes a first chassis subsection having a first width w and at least a second chassis subsection adjacent to the first chassis subsection having a width W greater than the width w of the first chassis subsection. Each chassis subsection includes a right and a left parallel C shaped frame rail inwardly open towards each other and extending longitudinally; the chassis further includes a right—respectively left—interface bracket connecting two consecutive right—respectively left—frame rails belonging to two adjacent chassis subsections; the interface bracket maintains a transversal distance D between the said two consecutive right—respectively left—frame rails belonging to two adjacent subsections and further includes at least one mounting unit on which at least one vehicular operational part is attached.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: July 19, 2011
    Assignee: Renault Trucks
    Inventors: Jan Hendriks, Ayman Mokdad
  • Patent number: 7980353
    Abstract: A steering system is provided for controlling the turning angle of the steering wheels of a vehicle. The steering system includes two electro-hydraulic circuits each including an actuator, both actuators being mechanically coupled and acting simultaneously on the turning angle of the wheels. A first circuit is displacement-controlled relative to a position set point while a second circuit is stress controlled. The set point applied of the second circuit includes a component developed from the filtering of the position set point applied to the first circuit.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: July 19, 2011
    Assignee: Renault Trucks
    Inventor: Jean-Baptiste Doray
  • Publication number: 20110167809
    Abstract: An engine arrangement including an internal combustion engine and an energy recovering system includes an exhaust line collecting exhaust gas from the engine, a filter having an active portion inserted between two successive parts of the exhaust line, in order to hold the particles contained in the exhaust gas, and filter rotating means designed to rotate the filter so as to shift the active portion of the filter, a secondary line carrying intake air towards an area of said filter distinct from the active portion, according to a direction opposite from an exhaust gas flowing direction inside the filter, so as to sweep the particles away from the filter and release them downstream, inside the secondary line. The secondary line includes a first arrangement, located downstream from the filter, for burning the particles and thereby heating air flowing in the secondary line, and a second arrangement capable of recovering the heat into work.
    Type: Application
    Filed: September 26, 2008
    Publication date: July 14, 2011
    Applicant: Renault Trucks
    Inventors: Iyad Balloul, Michel Vanvolsem, Marc Lejeune
  • Publication number: 20110162353
    Abstract: In an exhaust gas pipe, a first fluid flows in a flow direction in the pipe, and a second fluid is injected inside the pipe by a nozzle, from an injection inlet arranged in the pipe wall, according to an injection direction. A mixing device fastened inside the pipe upstream from the injection inlet creates turbulence that helps the mixing of the fluids. The mixing device has a first portion located on the injection inlet side of the pipe and a second portion located opposite the injection inlet side of the pipe, the portions being designed so that the fluid velocity is higher downstream from the mixing device second portion than downstream from the mixing device first portion. An aqueous solution of urea can be injected inside an exhaust pipe of a diesel engine.
    Type: Application
    Filed: September 19, 2008
    Publication date: July 7, 2011
    Applicant: Renault Trucks
    Inventors: Michel Vanvolsem, Julien Ampere
  • Publication number: 20110146250
    Abstract: A thermal energy thermal energy containing arrangement for an exhaust gas purification device incorporated in an exhaust line of an internal combustion engine is provided. The purification device has an inlet port through which exhaust gas from the internal combustion engine can flow in and an outlet port through which the treated exhaust gas can flow out.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 23, 2011
    Applicant: RENAULT TRUCKS
    Inventors: Michel Vanvolsem, Régis Vonarb