Mitsubishi Electric R&D Centre Europe Patente

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The invention relates to a computer implemented method (10) for determining required internal accuracies of at least one function, in a computer program, to reach a target global accuracy (TGA), comprising at least one iteration of the following steps:- lowering (S01) the precision of reference implementations of functions to obtain custom implementations,- obtaining (S02) errors induced by the precision lowering (S01) between custom implementations and reference implementations,- obtaining (S03), as a function of said errors, a plurality of acceptable combinations of custom implementations meeting the target global accuracy (TGA),- evaluating (S04) an execution efficiency of acceptable combinations as a function of at least one resource consuming criterion and delivering the required internal accuracies of functions when said at least one resource consuming criterion is met.

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Method for detection of a mismatch between parallel power electronic elements (11.1, 11.2) into a power electronic module (1), said method comprising: a. in response to the detection of a common turn-off of said elements, triggering a measuring period; b. during the measuring period, measuring a sequence of emitter voltages V<eE> of at least one of said elements; c. extract data, from the measurements, said data including the signs and/or the amplitude of local extremums of said emitter voltage V<eE> during the measuring period; d. deduce from the extracted data at least an existence or an absence of a mismatch between said elements.

The disclosure relates to a method for configuring an application to integrate into a wireless communication system. The method involves obtaining data representing the capacity parameters of the wireless communication system, requesting the application function interface to provide a response representing the capability for the application to operate with a proposed subset of parameter values, and integrating the application into the wireless communication network by allocating a Quality of Service (QoS) profile determined by the network controller device based on the current network capacities and the responses stored in the response data structure. The method is implemented by a system interface comprising an application function interface and a network controller device of the wireless communication system. It aims to ensure that the application can operate effectively within the wireless communication system by considering its capacity parameters and allocating an appropriate QoS profile.

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A measurement method of a flatband voltage of a power semi-conductor module (1) during operational service, said method comprising:a. applying a bias voltage to said module (1) such that said module (1) switches between off-state and on-state;b. triggering a gate current I_g injection from a current source (44) to a gate of the module (1) when an initial gate-emitter/source voltage is equal to a flatband voltage V_fb,h of the module (1);c. measuring the voltage V_g across the current source (44);d. extracting of a flatband voltage V_fb,h+1 from the said measured voltage V_g across the current source (44)e. stopping said gate current I_g injection- when the absolute difference between the gate emitter/source voltage and the flatband voltage V_fb,h becomes superior to a predefined limit; or- when the gate voltage I_g injection duration tinj exceeds a predetermined duration t_max;f. saving the extracted flatband voltage V_fb,h+1 value.

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Example implementations relate to a method for synchronizing a specific node connected to a plurality of other nodes. The method comprises receiving a respective synchronization quality value for a transmitting other node. The method also comprises measuring a respective propagation medium quality value with the transmitting other node. The method further comprises updating a specific synchronization reference of the specific node, whereby the updating comprises assigning to a respective contribution of the transmitting other node a respective weight of the transmitting other node, the respective weight being a function of the respective synchronization quality value of the transmitting other node and of the respective propagation medium quality value with the transmitting other node. The method also comprises revising a specific synchronization quality value and emitting to a receiving other node the revised specific synchronization quality value.

A user equipment (1) for implementing a control in a set of user equipments is provided with a model improvement module (18). Said model improvement module is dedicated to updating a prediction model that is used for inferring state predictions. The model improvement module alternates between a training mode where it determines a new prediction model to be implemented next, and an idle mode. A trade-off is obtained between limited resource requirement and accuracy of a state knowledge. In the idle mode, the model improvement module may assess a validity of the prediction model currently used.

The present disclosure concerns a method for measuring a degradation of thermal characteristics of a power module comprising sequences of: - injecting current pulses (P<inj>), having a voltage-clamped constant amplitude (I<inj>), between an emitter and a gate of a power semiconductor of such power module, a duration of said voltage-clamped constant amplitude (I<inj>) current pulses (P<inj>) being modulated periodically with a modulation frequency (F<mod>), said current pulses causing losses modulated with said modulation frequency (F<mod>), - measuring a parameter (k Tj) dependent of a junction temperature (Tj) of such power semiconductor at the beginning of said current pulses, - measuring a phase shift (Δφ) between said modulation frequency (F<mod>) and said parameter (k·Tj), said phase shift (Δφ) providing a health indicator for the power module.

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The present disclosure relates to a computer implemented method (20) for configuring values of a set of parameters of at least two moving formations, each formation comprising a plurality of respective communicating nodes, wherein the set of parameters comprises at least one prior parameter, wherein the set of parameters further comprises, for each formation:- a control parameter of a control algorithm,- a communication parameter for configuring the wireless links,wherein said configuration method comprises steps of:- for each prior parameter: (S20) obtaining a range of allowed performance values based on the corresponding prior parameter value,- (S21) searching for values of the control parameters and of the communication parameters of the formations which enable achieving an allowed performance value for each range in an optimal way,- if it is not possible to achieve an allowed performance value for each range: (S22) searching for updated ranges of allowed performance values for which it is possible to determine values of the control parameters and of the communication parameters which enable achieving an allowed performance value for each updated range,- (S23) determining an updated value of the at least one prior parameter.

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In a wireless communication system, SINR data are obtained from power measurements data, as follows: gathering first power measurements data of total power received during communications; gathering second power measurements data of in-transmission interference power; computing third power measurements data of useful power, from the first and second power measurements data; gathering fourth power measurements data of out-transmission interference power; merging the second and fourth power measurements data so as to form a set of fifth interference power data; computing a first characteristic function from the third power measurements data, and computing a second characteristic function from the fifth power measurements data; building a third characteristic function relating to the SINR data related to the transmission channel, by performing a term-by-term product of the first and second characteristic functions; computing a probability mass function from the third characteristic function.

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Control circuit for a current source converter having a current generator comprising an inductance (2) and having two or more half bridges each half bridge having an upper leg provided with an upper switching device (11, 13) and a lower leg provided with a lower switching device (12, 14), said upper legs switching devices and said lower legs switching devices being controlled by a controller (40) to provide an overlap between an upper leg turning off and an upper leg turning on switching device and to provide an overlap between a lower leg turning on switching device and a lower leg turning off switching device through gate pull up and gate pull down pulse signals to gate drivers buffers (6) of said switching devices, where said gate driver circuit comprises: - for each switching device (11, 12, 13, 14) a gate current mirroring circuit (5) on a sink branch of the gate driver buffer (6) of such switching device (11, 12, 13, 14) to provide a gate pull down detection signal (I<m>) from a turning OFF switching device, - for each switching device (11, 12, 13, 14) a gate command connection path to provide a gate command signal (G), at least one logic circuit combining a gate command signal (G) of a first upper or lower leg switching device and a gate pull down signal of a respectively second upper or lower leg switching device to provide a first protection trigger signal (Pr), when said gate command signal of said first upper or lower leg switching device and said gate pull down detection signal of said respective second upper or lower leg switching device correspond to both said first and second upper leg switching devices or both said first and second lower leg switching devices being OFF; converter having such a control circuit.

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