Abstract: A thermostat device for a motor vehicle cooling system includes a valve, a heat-sensitive component to induce opening of the valve when the temperature of the sensitive component exceeds a temperature threshold, and a heating module controlled by the sensitive component. The heating module delivers at most a maximum heating power. The heating module includes a regulating module to determine a gross useful voltage based on a measured temperature and of a temperature setpoint, and a correcting module including an electrical resistor connected to an electrode. The correcting module controls the heating module either to limit the heating power delivered by the heating module to a heating power strictly lower than the maximum heating power and sufficient to induce complete opening of the valve, or so that the heating module delivers non-zero heating power that is not sufficient to induce opening of the valve.

Abstract: A device and method for estimating the charge of a motor vehicle. A device for estimating the charge of a combustion or hybrid powered motor vehicle comprising an automatic transmission, comprising a module for determining the charging of the vehicle capable of determining if the vehicle is charged and an activation module for activating a program for controlling the automatic transmission on the basis of the determination of the charging of the vehicle. The module for determining the charging comprises a first unit for estimating a first slope value on the basis of the acceleration of the vehicle derived from the driving force and the longitudinal acceleration of the vehicle, a second unit for estimating a second slope value on the basis of the moment of inertia applied to a non-driving wheel of the vehicle and the engine and resistant torques and a third unit for determining the charging of the vehicle on the basis of the first and second slope values.

Abstract: A thermostat device for a motor vehicle cooling system includes a valve, a heat-sensitive component to induce opening of the valve when the temperature of the sensitive component exceeds a temperature threshold, and a heating module controlled by the sensitive component. The heating module delivers at most a maximum heating power. The heating module includes a regulating module to determine a gross useful voltage based on a measured temperature and of a temperature setpoint, and a correcting module including an electrical resistor connected to an electrode. The correcting module controls the heating module either to limit the heating power delivered by the heating module to a heating power strictly lower than the maximum heating power and sufficient to induce complete opening of the valve, or so that the heating module delivers non-zero heating power that is not sufficient to induce opening of the valve.

Abstract: A device and method for estimating the charge of a motor vehicle. A device for estimating the charge of a combustion or hybrid powered motor vehicle comprising an automatic transmission, comprising a module for determining the charging of the vehicle capable of determining if the vehicle is charged and an activation module for activating a program for controlling the automatic transmission on the basis of the determination of the charging of the vehicle. The module for determining the charging comprises a first unit for estimating a first slope value on the basis of the acceleration of the vehicle derived from the driving force and the longitudinal acceleration of the vehicle, a second unit for estimating a second slope value on the basis of the moment of inertia applied to a non-driving wheel of the vehicle and the engine and resistant torques and a third unit for determining the charging of the vehicle on the basis of the first and second slope values.