Abstract: The inventive system for controlling the regeneration of depollution means (1) which is integrated into the exhaust line (2) of a motor vehicle engine (3) and is associated with a common rail fuel supply means for carrying out the depollution means regeneration strategies (6) by using the fuel post-injections into the engine cylinders, wherein said system also comprises, for each regeneration, means (7) for calculating a total time spent in different regeneration strategies and means (8) for comparing said total time with a maximum threshold value (9) in order to stop the regeneration when said threshold is exceeded.

Abstract: An element comprises a rotary input member (15), a motion output member (19), an electrical machine (14) including a stator (27) and a rotor (26), a first connecting clutch (89A) between the input member (15) and an intermediate member (83) rotating about a first axis (X-X?). The intermediate member (83) is connected in rotation to the rotor (26), and a second connecting clutch (89B) is positioned between the intermediate member (83) and the output member (19). The element also comprises a casing (21) defining a housing (69) wherein are coaxially and concentrically mounted the first and second connecting clutches (89A, 89B). The axis of rotation (Y-Y?) of the rotor (26) is separate from the first axis (X-X?) and a transmission (121, 123, 135) connects in rotation the rotor (26) and the intermediate member (83). The invention is applicable to motor vehicle engine-transmission units.

Abstract: A method for monitoring a resistance welding process carried out on a stack of metal workpieces (1) clamped between two electrodes (2a, 2b) of a clamp (3), and a device therefor. According to the method, the electrodes (2a, 2b) are subjected to a clamping force (F) and a voltage (V(t)) enabling a current (I(t)) to flow through the stack of metal workpieces (1). The monitoring method further includes at least one step of analysing the clamping force (F) by comparison with a model from a prior learning process. The result of the analysis of each step is taken into account by a decision-making matrix to generate a correction and/or control signal intended for the welding process.

Abstract: A method of controlling the stopping and staffing of a heat engine (2) of a vehicle is such that (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 staff request phase, and not in pre-defined operating conditions that oppose the staffing of the engine (2), in order for the engine to be started. For a given engine stop request phase, the engine (2) can only be stopped or staffed at most a pre-determined number of times.

Abstract: The invention relates to an actuating device that actuates engine valves, comprising magnetizing means, a spring having a fixed end connected to an adjustable stop and having a moving end connected to the valve (1). The adjustable stop comprises meshing means (26) that can interact with a control element (8, 10) whereby enabling the tare of the spring to be adjusted, and comprises an orifice (11) located between the adjustable stops of the two valves (1) of the same pair and serving to accommodate the control element (8, 10). The invention is characterized in that the control element (8, 10) comprises positioning means (12) that interact with complementary means (13) whereby making it possible to locate two stable positions respectively corresponding to the meshing positions with the two adjustable stops of the two valves (1) and to immobilize the control element (8, 10) in these positions.

Abstract: The invention concerns a system for determining inflating pressures of tires mounted on a motor vehicle wheels, which includes acquiring vertical accelerations of a front wheel and of a rear wheel of the vehicle and estimating coefficients of stiffness of the tires of these wheels based on the acquired accelerations on another of the acquired accelerations, these coefficients of stiffness being estimated based on the thus temporally reset accelerations.

Abstract: The invention relates to a vibratory warning device attachable to a structural element (2) such as a vehicle seat and including vibratory means (3,4,5) for generating mechanical vibration in response to a control signal, and attachment means (7,8,9) for securing the vibratory means (3,4,5) to a portion (6) of the structural element (2), characterized in that the attachment means comprise a resilient element (8) defining a gap (11) with an opening into which said portion (6) of the structural element (2) can be inserted in order to attach the device by clamping the resilient element (8) against said portion (6) of the structural element. The invention further relates to a seat provided with said device.

Abstract: System in which the depollution device 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. In the system, a request for regeneration (req.RG) can be detected, whether the engine is in a stage of idling can be detected, a temperature downstream from the catalyst can be acquired, a maximum duration for post-injection application during the stage of idling can be determined on the basis of said temperature, and the post-injection can be progressively reduced as soon as the duration of use has reached the maximum duration.

Abstract: The invention relates to a control device (D) which is intended to control the temperature of first and second fluids formed by the lubricating oil of the heat engine (12) of the vehicle and the recirculated exhaust gases respectively. The inventive device (D) comprises a first heat transfer liquid/lubricating oil exchanger (14) and a second heat-transfer liquid/recirculated exhaust gases exchanger (16), said first and second exchangers being connected to the same heat transfer liquid circuit (10). Preferably, the heat-transfer liquid circuit (10) is connected to a heat source or a heat sink (18) comprising, for example, heat storage means (18) which can exchange heat with the heat-transfer liquid.

Abstract: The invention concerns a system for assisting regeneration of pollution management means (1) integrated in an exhaust line (3) of a diesel engine (4), wherein the engine (4) is associated with common ramp means (7) injecting fuel into the cylinders thereof, based on at least one post-injection and adapted to implement, in isocouple, through modification of the engine operation control parameters, at least two strategies called level 1 and level 2 and a second regeneration strategy including level 1 strategies and a sequence alternating level 2 and over-calibrated level 2 strategies, enabling different thermal levels to be achieved in the exhaust line. The invention is characterized in that it comprises means (8) for analyzing the vehicle running conditions and means (8) for comparing same to threshold values, to implement the first regeneration strategy for running conditions higher than the threshold values or the second regeneration strategy for running conditions lower than the threshold values.

Abstract: A system in which the depollution means (1) are associated with oxidation catalyst-forming means (2), and the engine (4) is associated with common manifold means (7) for feeding it with fuel, and adapted to implement a regeneration strategy in at least one operation of post-injecting fuel into the cylinders, is characterized in that is comprises: detector means (8) for detecting a regeneration request (req.RG); detector means (9) for detecting a state of the foot being raised on the vehicle accelerator; temperature acquisition means (11) for acquiring the temperature downstream from the catalyst-forming means (2); means (8) for determining a maximum quantity of fuel to be injected in the post-injection operations during the period of returning to idling following the foot being raised, and on the basis of said temperature; and means (7, 8) for immediately interrupting the post-injection operation as soon as the quantity of fuel injecting has reached the maximum quantity.

Abstract: This system in which the engine implements regeneration strategies at a first level and at a second level depending on different engine operation control parameters in order to obtain different temperature levels in the exhaust line involves acquiring the exothermic temperature level of the catalyst, comparing it with a threshold value so that in the event of the threshold being exceeded while the second level strategy is being applied, the system is controlled to regulate one of the engine operation control parameters in order to reduce the exothermic temperature level, and if this temperature level does not drop back below the threshold value at the end of a first time period, the system is controlled to switch over to the first level strategy, and if this exothermic temperature level still does not drop below the threshold value at the end of a second time period, to stop the regeneration strategy.

Abstract: The invention concerns a system for assisting regeneration of pollution management means (1) integrated in an exhaust line (3) of a diesel engine (4), wherein the engine (4) is associated with common ramp means (7, 8) injecting fuel into the cylinders thereof, based on at least one post-injection and adapted to implement, in isocouple, through modification of engine operation control parameters, at least two regeneration strategies called level 1 and level 2 strategies and a second regeneration strategy including level 1 strategies and a sequence alternating the level 2 and over-calibrated level 2 strategies, enabling different thermal levels to be achieved in the exhaust line.

Abstract: A vehicle comprising an electric motor serving as a powering engine and a storage battery for running the electric motor. The vehicle comprises a battery charger coupled to an electric power source external to the vehicle with power for rapid charge, for example, on the order of magnitude of ten minutes. The battery charger is, for example, designed to enable a charge via a three-phase power supply network.

Abstract: System in which the depollution apparatus is associated with an oxidation catalyst-forming device, and the engine is associated with a common rail for feeding it with fuel and adapted to implement the strategy of regeneration using at least one postinjection of fuel into the cylinders. In the system, a regeneration request can be detected, a state in which the vehicle accelerator pedal is being raised can be detected, the temperature downstream from the catalyst-forming means can be acquired, and it can be determined, on the basis of this temperature, the maximum duration for applying postinjections during a stage in which the engine is returning to idling as a result of the accelerator pedal being raised, for immediately cutting off postinjection as soon as the duration of postinjection use has reached the maximum duration.

Abstract: The present invention pertains to a process for diagnosing a catalytic converter processing the exhaust gases of a heat engine using a trap that stores and then reduces the nitrogen oxides (NOx) contained in these gases, these reductions being actuated as a function of the storage capacity of the trap. According to the present invention, such a process is characterized in that the oxygen ratio present in the exhaust gases downstream of the trap is measured by a sensor, and in that the storage capacity of the trap is determined by considering the time needed for the sensor to detect a threshold oxygen ratio in these gases during a reduction of the nitrogen oxides (NOx).

Abstract: System in which the NOx trap is associated with a catalyst integrated in an exhaust line of a vehicle engine, and in which the engine is associated with common manifold or “rail” fuel feeder 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 operation and rich mixture, in which the fuel feeder is adapted to define three strategies for controlling lean mixture operation of the engine, and to cause the engine to switch between its various strategies in order to keep the trap in a temperature window of maximum effectiveness.

Abstract: The invention relates to a method of controlling the operation of an electrical machine forming the starter (8) of a heat engine (2) and of electrical equipment (13). According to the invention, the starter and the electrical equipment are powered by the same power source (9) with which the operation of the starter (8) and the operation of the electrical equipment (13) are controlled respectively after an operation request phase has been identified and provided that no pre-determined conditions oppose same. The invention is characterised in that the operation of the starter (8) constitutes a condition which opposes the simultaneous operation of the equipment (13).

Abstract: The following steps are performed in the control method: determining a mode of operation from amongst a permanent mode and a transient mode, as a function of a set of variables comprising said estimated values; correcting the value of the speed of rotation of the outlet shaft in such a manner that: if the mode has been determined as being the permanent mode, then the moving average (L?) of the gear ratio (L) over a period (T) of a plurality of unit time intervals lies between a first threshold value (S1) that is negative and a second threshold value (S2) that is positive; and if the mode has been determined as being the transient mode, then said moving average (L?) of the gear ratio (L) lies outside the range of values defined by the first and second threshold value (S1, S2).

Abstract: The invention relates to a system for controlling the state and operation of a motor vehicle. The system is characterized in comprising sensors (C1, C2, . . . and CN) arranged on the vehicle and a control unit (35), receiving information from the different sensors and determining the state of the vehicle from said information and calculating the settings for braking transmitted to the dynamic (6) and static (7) breaking units, particularly allowing the vehicle to be maintained stationary when the speed thereof is zero. The invention finds application in the field of automobiles.