Abstract: The invention concerns a method for controlling automatic or automated transmission downshift used for power braking and comprising set of predetermined shifting laws, characterized in that it consists, below a certain arbitrary threshold Ethreshold of the accelerator pedal depression, in defining a new downshift law designed to be substituted for the current standard downshift law.

Abstract: The inventive wiping strip comprises a heel (3), a wiping lip (5), a flexible joint part (11) joining the lip to the heel, wherein said lip (5) extends on an axial median plane (P), the joint part (11) comprises two flexible symmetrically curved walls (21) and defines a recess (23) between said joint part and heel, and an abutment (31) which is protruded from the heel into the recess, symmetrically shaped and is used for limiting the bending stresses of the joint part (11). The abutment (31) is provided with a flexible core (33) substantially extending on the symmetry plane (9). A wiper blade provided with said windshield wiping strip is also disclosed.

Abstract: A system for assisting regeneration of a particle filter in an exhaust line (3) of a motor vehicle diesel engine (1) associated with: air admission means (2); exhaust gas recycling means (4); a turbocompressor (5); a particle filter (7); a common system (8) for feeding fuel to the engine; means (16) for adding to the fuel an additive adapted to be deposited on the particle filter (7) to reduce the combustion temperature of particles trapped therein; means (20, 21, 22) for acquiring information relating to operation of the engine; and monitoring means (17) adapted to trigger a phase of regeneration of the particle filter by combustion of the particles trapped therein by triggering a phase of multiple injection of fuel. The filter (7) is impregnated with a catalyst for oxidizing hydrocarbons and CO present in the exhaust gases.

Abstract: The invention relates to a system for carrying out a regeneration strategy by means of at least one fuel post-injection into cylinders and is characterised in that the inventive system comprises means (11) for measuring a temperature downstream of catalyst forming means, means (8) for determining a maximum time for applying the post-injections during return to idling phases produced by lifting off and idling according to said temperature and means (7, 8) for immediately stopping the post-injection when the maximum time is attained during the idling phase and/or a progressively reducing the post-injection when the application time attains the maximum value during said idling phase.

Abstract: A system is provided for powering a motor vehicle using a heat engine and an electric machine. The vehicle includes a supercapacitor which stores unused energy from the heat engine. When the vehicle speed stabilizes, energy is stored in the supercapacitor. The heat engine is shut down and the energy from the supercapacitor is then used to power the electric machine which supplies power to the wheels.

Abstract: The invention relates to a method for controlling the operation of a cylinder for a multi-cylinder four-stroke internal combustion engine, wherein said cylinder interacts with at least one fuel injector, an intake valve, an exhaust valve, operation members for controlling the opening of the valves according to a cycle running and means driven by an engine control computer according to the predetermined operation conditions of the engine for selectively opening or closing said cylinder valves, wherein the deactivation of the valves is carried out simultaneously in the middle of a cycle at a time approximately coinciding with the middle of a time extending between the theoretical consecutive opening times of the intake (OI) and the exhaust (OE) valves.

Abstract: In this wakeup system for stations interconnected by an information transmission network in particular for a motor vehicle, in which the stations need to pass from a standby state or an OFF state to an awake state in order to exchange information relating to the distributed function, all of the stations are connected to a single line for transmitting a station wakeup signal, at least some of the stations include means for generating a wakeup signal on said line in order to cause the other stations to take up their awake state, and means for sending information relating to the distributed function over the information transmission network, and at least some of the stations include means for analyzing the information on the information transmission network in order to determine whether they are concerned by the information and thus by the corresponding distributed function, so as to remain in the awake state or else return to the standby state or the OFF state.

Abstract: A system for assisting regeneration of a storage/release NOx trap integrated in an exhaust line (5) of a motor vehicle diesel engine (4) is characterized in that it comprises gas admission means for admitting gas into the engine, means for injecting fuel (11) into the cylinders thereof in the form of at least pilot and main injections, and means for controlling (12) said gas admission and/or fuel injection means for periodically switching the engine (4) between a lean-mixture standard operating mode in which NOx is stored in the trap (6) and a rich-mixture regeneration operating mode, with at least two pilot injections (1, 2) and one main injection (3), in which NOx is released from the trap (6) and the trap is regenerated.

Abstract: The inventive system for assisting in the regeneration of depollution means (1) which is integrated in the exhaust means (3) of a diesel engine (4), wherein the engine (4) is associated with a common rail supplying means (7, 8) for injecting fuel into cylinders thereof using at least one post-injection and for carrying out at least two regeneration strategies by isotorque modifying the parameters of the engine operation control, wherein the first regeneration strategy comprises a first level strategy and a second level strategy and the second regeneration strategy comprising the first level strategies and a sequence alternating the second and second over-calibrated level strategies, thereby making it possible to obtain different thermal levels in the line.

Abstract: The invention relates to a method for controlling the operation of a cylinder group for an internal combustion engine comprising an intake valve, an exhaust valve, handling members for controlling the opening of valves according to the predetermined conditions of the engine operation for selectively opening or closing said intake and exhaust valves, wherein the closing of the intake and exhaust valves is carried out at two distinct adapted times: for the intake valves, in the middle of a time extending between the theoretical intake valve closing timing of one cylinder and the intake valve opening timing of the other cylinder; for the exhaust valve of the cylinders, in the middle of a time extending between the exhaust valve theoretical closing timing of one cylinder and the exhaust valve opening timing of the other cylinder.

Abstract: An electromagnetic valve actuator for internal combustion engines, includes an electromagnet and a mobile magnetic plate intended to come into contact with a part of the electromagnet. At least one stop is located on the electromagnet or on the plate to limit the contact surface between the plate and the electromagnet. The actuator the electromagnet includes a magnet in its magnetic circuit.

Abstract: The invention relates to a method of controlling the stopping and starting of a heat engine (2) of a vehicle. The invention is of the type in which (i) it is necessary for the vehicle to be in an engine stop request phase, and not in pre-defined operating conditions that oppose the stopping of the engine (2), in order for the engine (2) to be stopped or (ii) it is necessary for the vehicle to be in an engine start request phase, and not in pre-defined operating conditions that oppose the starting of the engine (2), in order for the engine to be started. The invention is characterised in that, for a given engine stop request phase, the engine (2) can only be stopped or started at most a pre-determined number of times.

Abstract: A power transmission device (1) between a shaft (2) of a thermal engine (3) and a shaft (4) of wheels comprises a first and a second electric machine (6, 7), as well as a mechanical assembly (9). In a first mode of operation, the first machine (6) is connected to an element (27) of the assembly (9) and the second machine (7) is connected to a shaft (4) of the wheels (5). In a second mode of operation, the first machine (6) is connected to the element (27) of the assembly (9) and the second machine (7) is connected to another element (26) of the ensemble (9). In a third mode of operation, the shaft (10) of the first machine (6) is connected to the shaft (4) of the wheels (5) and the shaft (11) of the second machine (7) is connected to the other element (26).

Abstract: An internal combustion engine with direct gasoline injection and controlled ignition, having at least one cylinder, a cylinder head, sealing the cylinder, a piston, arranged to run in the cylinder, a combustion chamber, defined by the piston and the cylinder head, a gasoline injector into the combustion chamber, an ignition device, for producing an ignition of the air/gasoline mixture in the combustion chamber, inlet and exhaust valves, selectively sealing the combustion chamber and a system for recirculation of at least a part of the exhaust gas into the combustion chamber during the air intake phase, wherein the pressure provided for the injection device is greater than 250 bars, such as to homogenize the air/gasoline/recycled exhaust gas mixture and increase the speed of combustion.

Abstract: A system in which a depollution apparatus is associated with an oxidation catalyst and the engine is associated with a common rail for feeding it with fuel and adapted to implement a regeneration strategy using at least one post-injection of fuel into the cylinders. A request (req.RG) for regeneration is detected, state in which the vehicle accelerator pedal is being raised or a stage in which the engine is idling is detected, the temperature downstream from the catalyst is acquired, and a maximum quantity of fuel to be injected during post-injections is determined. The post-injection is immediately interrupted if the quantity of fuel injected reaches the maximum quantity during a stage of returning to idling. The post-injection is progressively reduced if the quantity of fuel injected reaches the maximum quantity during a stage of idling.

Abstract: The system for assisting the regeneration of depollution means (1) integrated in an exhaust line (2) of a heat engine (3) of a motor vehicle, by switching the engine between operation in lean mode and operation in rich mode in accordance with various parameters (7, 8) for controlling the operation of the engine, is characterized in that it comprises means (9) for measuring the temperature of the gases for supplying the engine and means (8) for correcting at least one parameter for controlling the operation of the engine in rich mode as a function of the measured temperature.

Abstract: In the system of the invention, the NOx trap (1) is associated with catalyst-forming means (2) integrated in an exhaust line (3) of a vehicle engine (4), and the engine is associated with a common manifold or “rail” fuel feeder (7, 8) for feeding it with fuel and adapted, by modifying control parameters for the operation of the engine, to cause the engine to switch between lean mixture (9) and rich mixture (10) operation. According to the invention, the fuel feeder (7, 8) is adapted to define four strategies (11, 12, 13, 14) for controlling lean mixture operation of the engine (9), and to cause the engine to switch between its various strategies in order to keep the trap (1) in a temperature window of maximum effectiveness.

Abstract: A system for assisting regeneration of a particle filter of an exhaust line (3) of a diesel engine associated with, in particular: a particle filter (7); an oxidation catalytic converter (6); a common system (8) for feeding fuel to the cylinders of the engine; means (16) for adding to the fuel an additive adapted to reduce the combustion temperature of the trapped particles and propagate their combustion; and monitoring means (17) for triggering a phase of regeneration of the particle filter by combustion of the particles trapped therein during a phase of multiple injections of fuel; characterized in that the particle filter (7) is impregnated with a catalyst for oxidizing the hydrocarbons and CO present in the exhaust gases flowing through said particle filter.

Abstract: The system for assisting the regeneration of depollution means (4) associated with oxidation catalyst-forming means (3) integrated in an exhaust line (2) of a motor vehicle diesel engine (1) in which the engine (1) is associated with common manifold means (5) for feeding fuel to its cylinders, the system being adapted implement, at constant torque, a strategy of regeneration by injecting fuel into the cylinders of the engine in at least one post-injection, is characterized in that it includes means (7, 8, 9) for detecting a stage in which the vehicle engine is idling or in which the accelerator pedal is being raised, and means (6) for analyzing the activity state of the catalyst-forming means (3) in order to control the common fuel-feed manifold means (5) in order to regulate the quantity of fuel injected during the or each post-injection as a function of the activity state of the catalyst-forming means (3).

Abstract: The invention relates to an optical exploration device, particularly for the detection of the blind spot of a vehicle, comprising first passive thermal infrared detection means (2) of the thermopile variety, for example, having a sensitivity range within a first wavelength interval (1), second detection means (3) used to measure direct or indirect solar energy (5) within a second wavelength interval (12), characterized in that the first and second (12) wavelength intervals partially overlap, and in that the first (2) and second (3) detection means are disposed and are oriented in a relative manner in order to successively or simultaneously sight the same are of detection (Z). The invention also relates to a vehicle comprising said device.