Abstract: In a hybrid vehicle system comprising an electric power storage system and an electric motor, the method includes a first step of allowing the electric power storage system to be discharged: upon detecting a condition of a charge of the electric power storage system that is greater than a first threshold to optimize power consumption; and upon detecting a condition of the charge of the electric power storage system that is greater than a second threshold to increase performance.

Abstract: The present invention essentially relates to a method for finding a slip point of a hybrid vehicle (1) having an electrically towed rear axle. In said method, the electrical machine (17), when starting the vehicle, is actuated to provide the vehicle drive, the engine (7) being turned off, the clutch (10) being open, and the transmission (8) being in neutral. Once the speed of the main shaft has reached a threshold (K?1), the acceleration of said main shaft is measured and stored as a reference value, and the closing of the clutch (10) is gradually controlled. Once it has been detected that the change in acceleration (?WAP/?t) of the main shaft relative to the reference value has reached a threshold (K?2), the position of the clutch (10) is stored in order to deduce therefrom the position of the slip point (PP).

Abstract: The invention relates to a method for adjusting a combustion parameter Pi of a combustion engine during a cold start, characterized in that the value of the parameter Pi is established (104) by interpolating between two predetermined values PiREF1 and PiREF2 as a function of the value ? of engine speed and of a temperature of an engine coolant, the values PiREF1 and PiREF2 being optimal in order to reduce pollutant emissions when the engine is running on reference fuel of respectively high volatility and low volatility.

Abstract: The invention relates to a method for adjusting the temperature of a particle filter of an exhaust line (1) during a regeneration phase of said filter by injecting fuel into the exhaust gases, and which includes the steps of: measuring the temperature (T5) in the particle filter; predetermining an amount of fuel to inject into the exhaust gases (Qigec), said amount including a first component (Qd c) predetermined by means of an open control loop not factoring in the measured temperature, and said amount including a second component (Qc2) predetermined by means of a closed control loop factoring in the measured temperature; and, on the basis of the amplitude of the second component relative to the predetermined fuel amount, predetermining a correction term (Kc) of the first component and applying said correction term in the open control loop.

Abstract: In a system for assisting the regeneration of depollution apparatus associated with an oxidation catalyst implementing an OSC function, constituting a supply of oxygen and integrated in an exhaust line of a motor vehicle diesel engine, in which the engine is associated with a common rail for feeding its cylinders with fuel, the running conditions of the vehicle are analyzed and compared with predetermined threshold values, to control the engine in a first regeneration mode of operation with a lean mixture when running conditions are above the threshold values, or in a second regeneration operating mode implementing sequences in which engine operation alternates between stages of rich mixture operation and of lean mixture operation when conditions are below the threshold values.

Abstract: A device for controlling the suspension of the body shell of a motor vehicle performs calculation of a relative modal body shell speed in relation to the mid-plane of the wheels, and calculation of the set modal stress of the damper as a function of the relative modal body shell speed in relation to the mid-plane of the wheels. The control value includes a determined shock absorption principle from among a plurality of different shock absorption principles that impose the force of the damper as a function of its travel speed.

Abstract: The invention essentially relates to an electric power storage device (1) for hybrid or electric motor vehicles, comprising: a high voltage power supply bus (2) to be connected to an electric traction system (7) and/or to an onboard electric power system, and a first electric power storage element (3) connected to said power supply bus (2). According to the invention, a second storage element (4) is connected to the bus (2) via an electric coupling member (5), said second storage element (4) being connected to the bus (2) in parallel relative to the first storage element (3). One of the two storage elements (3, 4) includes an electrochemical battery, while the other storage element (3, 4) includes an ultracapacitor.

Abstract: The invention relates to a method for correcting a model for determining the amount of reducing agent to inject for the selective catalytic reduction of nitrogen oxides contained in exhaust gases, which includes the following steps: determining an amount of reducing agent to inject based on the amount of nitrogen oxides emitted and an initial mathematical model; determining, by taking a measurement from the catalyst of the amount and/or nature of the gas, whether or not the reducing reaction is carried out under correct conditions; if an anomaly is detected, adjusting the amount of reducing agent to inject; and if the use of said method leads to a number of repeated adjustments of the same nature greater than a predetermined value N: the mathematical model is corrected, and the initial mathematical model is replaced by the corrected model.

Abstract: The present invention relates essentially to a recharging device of a storage system for electric power from a power network, said storage system being used as a power source for electric or hybrid vehicle, said system comprising: a first storage element of electrical energy (1), specifically a battery, and a second storage element of electrical energy (2), specifically a pack of supercapacitors, a DC-DC power converter (3) being arranged between said first element and second element, said first element having a first voltage, and said second element having a second voltage which may exceed said first voltage, wherein said device comprises: a voltage rectifying device (5) connected on the one hand by an electrical connection to the converter (3) on the side where it is connected to the second element, and also connected by a removable electrical connection to the network supply, said device being adapted to rectify the alternating voltage delivered by the network to a DC voltage in the range of operation o

Abstract: A method is intended for desulfation of a nitric oxide trap (22) and regeneration of a particle filter (24) arranged in an exhaust line (20) for treating exhaust gas from an internal-combustion engine (10), notably a Diesel engine. The saturation rate of the trap and the clogging rate of the filter are evaluated and, as soon as one of the rates reaches a threshold value, the fuel/air ratio of the exhaust gas is increased without it reaching a fuel/air ratio of 1, then desulfation of trap (22) is performed in association with regeneration of particle filter (24).

Abstract: The invention relates to a method for recognizing combustion in a particle filter (6) provided in the exhaust line of a combustion engine (1), the filter (6) having periodic regeneration that is controlled by suitable means, which comprises a step of measuring or estimating parameters representing combustion in said filter (6) and a step of processing said parameters to diagnose a combustion instance and estimate the strength thereof, and characterized in that said steps are implemented during the entire phase of engine operation (1), and particularly outside the phases of regeneration controlled by the filter (6). The invention also relates to a device capable of implementing such a method.

Abstract: The invention relates to a method for controlling a coupling device between an input shaft driven by a motor and an output shaft that can transmit a maximum torque according to the position of an actuator of the coupling device 5 complying with a law of behavior of the coupling means according to which: a set value (Cemb,cons) of maximum torque to be transmitted is defined; the actual position (Xemb,mes) of the actuator of the coupling device is measured; a set value (Xemb,cons) is determined for actuating the coupling device and is sent to the actuator of the coupling device, while using a law of behavior of the coupling means obtained by interpolation between a first law of reference of behavior of the coupling means and at least one second law of reference of behavior of the coupling means, and; an auto-adaptation of the law of behavior of the coupling means is carried out for taking into consideration its evolution resulting from the use.

Abstract: The invention concerns a device for coupling a rotor of a rotating electrical machine with the gearbox primary shaft of a motor vehicle heat engine. The device is characterized in that the hub (7) of the rotor (6) is coupled with the primary shaft (8) by a mating part (25) comprising an externally toothed crown (26) meshing in the hub (7) and a central sleeve (27) coupled with the primary shaft (8) through a splined connection (28) and in that ends (29) and (30) of the toothed crown (26) and of the central sleeve (27) of the part (25) are centered respectively in the hub (7) and on the primary shaft (8) in sliding arrangement. The invention is applicable in the automotive industry.

Abstract: A heat exchange and heat transfer device comprises an evaporating/absorbing arrangement connected to a binary mixture flow circuit containing a first refrigerant fluid and a second absorbing fluid. The refrigerant fluid is evaporated in the evaporator part of the arrangement and subsequently absorbed in the absorber part by an absorbing fluid-enriched mixture. The evaporating/absorbing arrangement comprises at least two oppositely disposed reference surfaces defining evaporation and absorption components, respectively, an evaporator mass for supplying the liquid refrigerant fluid to the reference surface of the evaporation component and an absorber mass for supplying the absorbing fluid-enriched mixture to the reference surface of the absorption component.

Abstract: The invention relates to a method of control of an internal combustion engine comprising at least one electrically controlled inlet valve. To reduce hydrocarbon emissions by the cold engine, the opening of the valve is controlled in two successive phases (32, 34), the first phase (32) corresponding principally with the admission of fuel and the second phase (34) mainly corresponding with the air inlet. The opening of the valve is substantially lower during the first phase than during the second phase in order to pulverize the fuel into fine droplets during the first phase.

Abstract: The present invention essentially concerns a method for a motor vehicle speed ratio shift. Said method uses a power transmission device (1.1) comprising a traction chain consisting of a heat engine (2), a clutch (3), an electrical machine (4), a gearbox (5), and wheels (6). The invention is characterized in that, upon shifting, the heat engine (2) is started before, during or after the torque (CMEL) observable on the shaft (11) of the electrical machine (4) is canceled, by means of a starter system (7) mechanically independent of the electrical machine (4).

Abstract: The invention concerns a method and a system for controlling start-up of a motor vehicle by dialogue of the engine controlling computer with the piloted mechanical gearbox, during a restart of the vehicle in stop and start mode. A “start-up authorization” is transmitted to the gearbox at a time t when the following three conditions are fulfilled: a) verifying the position of the accelerator pedal relative to a predetermined “threshold” position; b) the engine is in sequential injection phase; c) verifying a so-called “autonomous condition”, calculated on the basis of the engine speed and of an engine speed gradient compared to a predetermined threshold value. The invention is applicable to motor vehicles.

Abstract: In a power supply with n interlaced conversion cells, a control device activates m paths out of n paths, 1?m?n, as a function of the power or of the current handled by the power supply. The cell may have a boost, buck, buck/boost, Cuk, or SEPIC topology.

Abstract: A power supply with non-isolated DC DC splitting includes n conversion cells that are interlaced. The splitting switch of each cell is placed in a resonant circuit. The resonant circuit makes it possible to obtain a switching to the open state of said switch at zero current and voltage. The ripple at the input and output is minimized and the efficiency improved. In particular, the wiring inductances in the charge transfer loop of each cell no longer have negative effects on the efficiency. The cell may be of boost, buck, buck/boost, Cuk or SEPIC topology.

Abstract: The invention relates to a retractable display device for a motor vehicle comprising a light source (8) for generating a displayable information and a retractable blade (1) for reflecting information towards the vehicle user. Said blade (1) is mounted on a movable support (2) displaceable between a rest position and at least one display position in such a way that said blade (1) is retracted when the movable support (2) is in the rest position and the blade is unfolded when said movable support (2) is in the display position.