Abstract: The invention relates to a method for using a device for starting a heat engine of a motor vehicle. The method comprises a step in which a theoretical hold time T, is determined by a monitoring computer (101).

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 invention relates to a method for managing a hybrid vehicle air conditioning system that includes a compressor (8) generating coolness that is storable in a cold reserve (10), the heat engine having access to a control (34) that automatically controls the starting and stopping thereof. Said management method is characterized in that it has the power needed to pull the vehicle (6) and a level of coolness in the cold reserve (10) such that: when the heat engine (2) is on, the stopping (82) thereof is enabled if the charge level (92) in the cold reserve (10) is greater than a minimum threshold and the necessary pulling power is below a maximum threshold, both of said thresholds correlating with each other; and when the heat engine (2) is off, a command for the starting (84) of said heat engine is made if the charge level of the cold reserve (10) is less than a maximum threshold and the necessary pulling power is above a minimum threshold, both of said thresholds also correlating with each other.

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 soundproofing device for the passenger compartment of a vehicle (10), to be positioned between a sheet métal panel of the vehicle bodywork (12) and an inner trimming panel (14). The device comprises a polymer foam plate (20) impregnated with a mixture of an inorganic filler and an organic binder, the foam plate (20) being shaped so as to be in close contact with the sheet métal panel of the bodywork (12) and with the inner trimming panel (14). The invention further relates to an inner trimming System for the passenger compartment of a vehicle, comprising an inner trimming panel (14) for covering a sheet métal panel of the vehicle bodywork (12) and such a device. The invention further relates to a vehicle provided with such a System. The invention can be used in automobiles.

Abstract: The present invention essentially relates to an electric machine (1.1) with homopolar double excitation, comprising a rotor particularly consisting of a central portion (51) made of a solid magnetic material and a laminated annular portion (53) located at the periphery of the solid portion. In addition, the rotor comprises permanent magnets (54), the magnetization thereof being radially oriented relative to the axis (33) of the rotor (31), and separated from one another such that the double excitation flow generated by the field coils (38, 39) can enter the rotor (31, 67) via the flanges (48, 49) of the rotor, and come back out via the spaces between the magnets (54), or vice-versa.

Abstract: The invention relates to a device and a method for cooling an electricity storage means, in particular a high-capacity battery (110), said device comprising: cooling means (130) for cooling said storage means; a “low voltage” battery (120); means (130), supplied with power by the low voltage battery (120), for increasing the rate of cooling of the storage means (110). The invention also relates to a vehicle (100), especially a motor vehicle, comprising such a device, said vehicle comprising an electric power train (220).

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 device (D) for checking frames of groups of bits, received by an electronic device (O1) connected to a communication network (RC) and using at least one so-called non-secure-type local function. The device (D) includes checking means (MC) which, should an error occur in at least one group of bits in a frame received from the network (RC), are configured to force the electronic device (O1) to use as is at least each bit group of the received frame which is representative of a parameter of a non-secure-type local function used by said electronic device (O1).

Abstract: The invention relates to a method for determining service intervals for a motor vehicle fitted with an exhaust gas treatment system, the treatment consisting in selective catalytic reduction, in a catalytic converter, of the exhaust gases, using a reducing agent injected into the exhaust line, the method comprising the following steps, performed upon vehicle start-up: —the step of determining an initial value for the distance still to be covered before the next service, —the step of determining an actual distance covered since the last start, —the step of determining a quantity of reducing agent consumed since the last start, —the step of determining, as a function of this consumed quantity of reducing agent, a vehicle driving harshness factor, —the step of correcting the actual distance covered on the basis of the harshness factor, in order to obtain a weighted distance covered, and —the step of updating, on the basis of this weighted distance covered, an updated value of the distance still to be covered bef

Abstract: A heating/air-conditioning installation (IC) comprises a compressor (CP) capable of heating and pressurizing a refrigerant, an internal condenser (CDI) capable, in heating mode, of contributing towards the heating of an air known as interior air by exchange with the refrigerant coming from the compressor (CP), an external pressure reducer (DTE) capable, in heating mode, of cooling the refrigerant, and an external evaporator (EE) capable, in heating mode, of heating up the refrigerant coming from the external pressure reducer (DTE) by exchange of heat with an air known as exterior air to feed into the compressor (CP).

Abstract: The control method for a hybrid drive system of a vehicle includes (1) acquiring the driver's acceleration desire for determining the power for the corresponding wheel (Pwheel), the charge level of the battery (SOC) between a minimum (SOCmin) and a maximum (SOCmax) thresholds for a predetermined traction mode, and the available braking power (Pfrein) for deciding between electric or dissipative braking; (2) managing the charge (SOC) for, based on a first (SOC1 bmin) and a second (SOC2 bmin) minimum thresholds of the charge (SOC) and the driver's requested wheel power (Pwheel), either imposing a battery recharge or setting input parameters for the traction mode selection; and (3) selecting the traction mode, based on the battery power actually available (Pbat), the driver's requested wheel power (Pwheel), and the maximum power available at the thermal engine output (Pmthmax), for selecting the traction mode most adapted to the actual situation of the vehicle.

Abstract: The invention relates to a power train for a hybrid vehicle, comprising two hydraulic machines (20, 22) including variable displacement, both of which are connected to a hydraulic pressure accumulator (24) which stores energy, a first hydraulic machine (20) being permanently connected to an internai combustion traction engine (2), and a second hydraulic machine (22) being connected, also permanently, to drive wheels (8) of the vehicle, characterised in that the two hydraulic machines (20, 22) are also interconnected by a linking means (10) that can be engaged or disengaged.

Abstract: The invention relates to a driving aid system incorporated into a vehicle comprising a windshield, the system comprising visual information that is not visible, disposed at several predefined locations on the windshield and a lighting device able to illuminate each of the predefined locations so as to cause the appearance thereat of the corresponding visual information in the field of vision of the driver. The visual information comprises at least a first group of identical information, and the system further comprises a unit for detecting the ocular point of the driver providing directional information to the light device which is adjusted so as to illuminate, depending on the directional information received, the predefined location of one of the items of information of the first group, situated in correspondence with the ocular point of the driver detected.

Abstract: The method according to the invention is a method for controlling the purging of a sélective catalytic réduction System (1) for a vehicle. The sélective catalytic réduction System (1) has a pump (4) for reducing agent (3), at least one supply line (5) supplying reducing agent (3) to an exhaust line (10) of the vehicle, and a purge fluid suction device. The method is characterized in that it involves determining a purge duration as a fonction of a state of fill of the supply line (5) prior to activation of the purge phase, and in that the method forther comprises the updating of the purge duration during purging.

Abstract: A device (D1) is dedicated to the processing of video images which are intended to be transmitted to a receiver (R) so as to be used to construct synthesis images to be displayed. This device (D1) is devised, in the presence of a video image acquired consisting of video image data, so as to construct a processed image by replacing in this acquired video image some of its video image data by a control message which contains at least one group of control data, of nonvideo type and defining information which is intended to be used by the receiver (R) to construct a synthesis image to be displayed on the basis at least of the remaining video image data, after the replacement, in the processed image.

Abstract: The system of the invention includes sensors (11, 12, 13) for measuring physical values useful for driving assistance, a path correction electronic calculator (20) including a Hill Assist (HA) module for hill start assistance and a Hill Descent Control module for limiting the downhill speed, and actuators (31 to 35) controlled by said calculator for acting on the different driving parameters. The calculator further includes a Hill Assist Descent Control (HADC) for driveability control assistance in slopes, that enables or disables the Hill Assist (HA) and Hill Descent Control (HDC) modules based on specific control rules for managing intermediate life situations between the situations managed by the Hill Assist (HA) module and those managed by the Hill Descent Control (HDC) module. The invention also relates to automobiles and to automobile driving assistance systems.

Abstract: The invention relates to a clamp (10) which is used mainly in a vibroacoustic diagnosis tool during an automobile maintenance or after-sales assistance operation, including two hinged arms (11, 12), each comprising a jaw (13, 14) at one end and a handle (15, 16) at the other end. A pad (20) is mounted on each jaw (13, 14) via a ball-and-socket joint (21), such that the pad (20) ensures effective contact between the clamp (10) and the part being tested, and separates the body of the clamp from the listening part. The invention is useful in the field of motor vehicles. The invention is also useful in the vibroacoustic diagnosis of motor vehicles or motor vehicle subunits.

Abstract: A device (D) is dedicated to the diagnosis of operating situations) in at least one communication network (RC) having a bus (BU) with N wire(s).

Abstract: The inventive double-clutch transmission element for a hybrid pull chain of a motor vehicle comprises a motion input shaft (37), a motion output shaft (39), an electrical machine (31) comprising a stator (61) and a rotor (63), a first clutch (33) providing a connection between the input shaft (37) and an intermediate member (73), and a second clutch (35) providing a connection between the intermediate member (73) and the output shaft (39), the intermediate member (73) being coupled in rotation to the rotor (63). A casing comprising a first half-shell (51) rotatably supporting the input shaft (37) and a second half-shell (52) rotatably supporting the output shaft (39) defines a housing in which the two clutches (33, 35) and the electrical machine (31) are mounted in a co-axial manner. The invention also relates to a motor vehicle equipped with such transmission element and to a method of mounting same.