Abstract: A device for determining a value of a binary item, delivered in a redundant manner by two distinct determination mechanisms, and representative of a parameter of a system, the binary item being equal to a first or a second value when the parameter lies respectively in a first or a second range of values, the first and second ranges of values being separated by a transient range of values in which the transitions of value of the binary item transmitted respectively by the determination mechanisms occur. The system includes a state machine that assigns, when one of the determination mechanisms delivers a binary item devoid of any transition of value on account of a malfunction, respectively the first or second predetermined value delivered by the other determination mechanism, which is operating normally, when the parameter lies in the first or second range of values.

Abstract: An electronic device and method for commuting an electric load, including an electronic commutator controlled by a microcontroller, positively supplied at a voltage, with an outlet that may adopt at least three states and operating in a nominal mode that may be switched intentionally or by default to a failsafe mode in case of malfunction of the electronic commutation device. The electronic commutation device additionally includes a positive commuted supply greater than the voltage and connected to the microcontroller of the electronic commutation device by a resistive polarization device to carry out the function of safety barrier, and an interface device for recognizing the presence or absence of the positive commuted supply.

Abstract: A method of synthesizing an electrical or electronic architecture of at least one part of a product including electrical wires and electrical and electronic components, such as sensors, actuators, and computing devices. In the method: the geometry of the product, which is divided into different zones, is represented two-dimensionally; routing points for the routing of the electrical wires are positioned in the different zones; connection points are positioned between the different zones; electrical and electronic components are positioned in the zones; a routing is synthesized according to the geometry of the different zones and the positions of the routing points, the connection points, and the components; the routing is assessed and, using the result of the assessment, the positions of the routing points, connection points, and/or electrical and electronic components are altered; and the synthesis and assessment are repeated.

Abstract: A method of generating braking information for a device comprising first and second sensors 3, 4 linked to a control unit 5 and designed to sense positioning information concerning a brake pedal moving between released and depressed positions; the method comprising: the transmission to the control unit, by the first sensor, of a first pedal “press” signal (S1) and a first “non-press” signal ({overscore (S1)}) the transmission to the control unit, by the second sensor, of a second pedal “press” signal (S2) and a second “non-press” signal ({overscore (S2)}). The method including the generation of a first information item (F1) if the signal (S1, {overscore (S1)}) is inconsistent and a second information item (F2) if the signal (S2, {overscore (S2)}) is inconsistent, each signal being analyzed independently of the other for this generation.

Abstract: A method of designing a hardware and software system specification. In the method services are defined and a use case is defined for each service; each use case is associated with at least one system start state, a user request and, for each start state, a system end state; operations are defined and, at the same time, a set of elementary operations is defined for each state, the set corresponding to the response from the system at the time of entry into the state; the architecture of the system is specified, defining electronic control units and networks; and elementary operations are placed on computers. Further, the method executes at least one of (1) identifying data flows circulating over the networks according to the placement or (2) identifying specification interfaces of the computers according to the placement.

Abstract: A method and device for synthesizing an electrical architecture. The method synthesizes a routing that obtains the following parameters: different configurations of service variants and calculator variants and rate of occurrence of the configurations, a sum of the rates of the configurations being considered as equal to one; component cost characteristics stored and weighted according to their respective rates of increase; and partial or full positioning of the service variants on the calculator variants. The method also identifies valid routings, evaluates the routing cost of the valid routings for each configuration, and determines the valid routing that minimizes the average of the routing costs for each configuration, the average being weighted by the rates of increase of each configuration.

Abstract: The invention relates to a method of synthesising an electrical or electronic architecture of at least one part of a product comprising electrical wires and electrical and electronic components, such as sensors, actuators and computing devices.