Abstract: The method serves to calculate a start sequence or a stop sequence for an engine, said sequence comprising a plurality of cues at which predetermined actions should be performed in the control of said engine. The method comprises: a step of obtaining at least one thermodynamic condition of said engine; and a step of calculating said sequence as a function of: said at least one thermodynamic condition; dimensional parameters of said engine; and criteria for proper operation of said engine.

Abstract: This device for controlling at least one operating variable of a regulated system comprising: a filter module for filtering at least one setpoint input to the control device, the module using a first order integrator; and a correction module for correcting the variable by servo-control, the module taking account of a measurement of the variable and of the setpoint as filtered by the filter module in order to generate at least one command for the system; a control module suitable for generating a gain control factor ? on the basis of at least one parameter of the system and of an operating limit value associated with the parameter; and weighting means for weighting the gain of the filter module as a function of the factor and of the residue between the setpoint and its filtered value.

Abstract: The invention relates to a device for validating measurements of a dynamic magnitude x coming from an article having main sensors placed thereon on three main axes for measuring of said dynamic magnitude x. The device includes at least two additional sensors for measuring at least two additional components of the dynamic magnitude. The additional sensors are placed on the article on at least two additional axes that are concurrent with the three main axes and that are not contained in any of the planes defined by any pair of the three main axes. The device further includes a unit for determining an estimator U representative of the dynamic magnitude from the components; and means for validating the determination of the estimator U representative of the dynamic magnitude, as well as an error detector and a localization unit for locating valid components of the dynamic magnitude.

Abstract: This device serves to adjust at least one operating variable of an engine as a function of a setpoint. It comprises: calculation means for calculating an error obtained from the difference between a measurement of the variable and the setpoint; a command generator unit for responding to said error to generate a bang-bang type command for application to a slow actuator; an inhibit unit placed upstream from the command generator unit, suitable for inhibiting the error when it lies within a determined range; a quantizing unit for quantizing the duration of the bang-bang command; and a sender unit for sending the command to the slow actuator.

Abstract: The method serves to calculate a start sequence or a stop sequence for an engine, said sequence comprising a plurality of cues at which predetermined actions should be performed in the control of said engine. The method comprises: a step of obtaining at least one thermodynamic condition of said engine; and a step of calculating said sequence as a function of: said at least one thermodynamic condition; dimensional parameters of said engine; and criteria for proper operation of said engine.

Abstract: This device for controlling at least one operating variable of a regulated system comprising: a filter module for filtering at least one setpoint input to the control device, the module using a first order integrator; and a correction module for correcting the variable by servo-control, the module taking account of a measurement of the variable and of the setpoint as filtered by the filter module in order to generate at least one command for the system; a control module suitable for generating a gain control factor ? on the basis of at least one parameter of the system and of an operating limit value associated with the parameter; and weighting means for weighting the gain of the filter module as a function of the factor and of the residue between the setpoint and its filtered value.

Abstract: The invention relates to a device for validating measurements of a dynamic magnitude x coming from an article having main sensors placed thereon on three main axes for measuring of said dynamic magnitude x, the device including at least one additional sensor for measuring at least one additional component of the dynamic magnitude, said additional sensor being placed on the article on at least one additional axis that is concurrent with the three main axes and that is not contained in any of the planes defined by any two of the three main axes; means for determining an estimator U representative of the dynamic magnitude from the components; and means for validating the determination of the estimator U representative of the dynamic magnitude.

Abstract: The invention relates to a system for regulating the temperature of a fuel cell that is cooled by a cooling fluid traveling through the cell, the system including both first control means for measuring the temperature of the cooling fluid and for controlling the flow rate of the controlling fluid as a function of said measured temperature of said cooling fluid, comprising second control means for measuring the flow rate of the cooling fluid and for controlling the temperature of the cooling fluid as a function of a flow rate difference between the command flow rate specified by said first control means and said corresponding measured flow rate of the cooling fluid such that said command temperature specified by the second control means compensates for said flow rate difference.