Abstract: Electronic device (1), capable of operating a DC motor, including an H bridge with an upper left-hand switch (R1), an upper right-hand switch (R2), a lower left-hand switch (R3) and a lower right-hand switch (R4), the second terminal (R1b) of the upper left-hand switch being connected to the second terminal (R3b) of the lower left-hand switch, and the second terminal (R2b) of the upper right-hand switch being connected to the second terminal of the lower right-hand switch, wherein the device is modified by cutting the link between the second terminal of the upper left-hand switch and the second terminal of the lower left-hand switch, and by cutting the link between the second terminal of the upper right-hand switch and the second terminal of the lower right-hand switch.

Abstract: Method for regulating the control of an electrical wastegate actuator controlled via an H bridge to permit displacement of the wastegate in its closure and opening directions according to whether the current passes through the actuator in one or opposite direction, includes: determining a set position which the wastegate has to reach, and an activation time of the actuator defining a monitoring time; applying a control signal to the actuator to displace the valve into the set position; measuring the current passing through the H bridge and applying a correction factor to the current to obtain the motor torque; obtaining the displacement speed of the wastegate by integration of the motor torque; obtaining the position reached by the wastegate at the end of the monitoring time by integration of the speed; comparing the position reached with the set position; and repeating the method until the set position is reached.

Abstract: Electronic device (1), capable of operating a DC motor, including an H bridge with an upper left-hand switch (R1), an upper right-hand switch (R2), a lower left-hand switch (R3) and a lower right-hand switch (R4), the second terminal (R1b) of the upper left-hand switch being connected to the second terminal (R3b) of the lower left-hand switch, and the second terminal (R2b) of the upper right-hand switch being connected to the second terminal of the lower right-hand switch, wherein the device is modified by cutting the link between the second terminal of the upper left-hand switch and the second terminal of the lower left-hand switch, and by cutting the link between the second terminal of the upper right-hand switch and the second terminal of the lower right-hand switch.

Abstract: Method for regulating the control of an electrical wastegate actuator controlled via an H bridge to permit displacement of the wastegate in its closure and opening directions according to whether the current passes through the actuator in one or opposite direction, includes: determining a set position which the wastegate has to reach, and an activation time of the actuator defining a monitoring time; applying a control signal to the actuator to displace the valve into the set position; measuring the current passing through the H bridge and applying a correction factor to the current to obtain the motor torque; obtaining the displacement speed of the wastegate by integration of the motor torque; obtaining the position reached by the wastegate at the end of the monitoring time by integration of the speed; comparing the position reached with the set position; and repeating the method until the set position is reached.

Abstract: A method of communication between at least two automotive electronic control units, including two communication interfaces between the units enabling messages to be sent via one or the other of the interfaces, the units each including a microcontroller linked to the interfaces managing sending and receiving of the messages according to a given priority level, transmission speed and recurrence, and including a diagnostic system for checking the functionality of the interfaces, a message scheduler, the method including: introducing a logic switch into each microcontroller, for selecting one or the other interface; checking that neither interface is defective; scheduling by the scheduler the sending of messages in succession via one or the other of the interfaces; selecting one or the other of the interfaces to send the messages scheduled by the message scheduler; and sending the scheduled messages in succession by one or the other of the interfaces.

Abstract: An input port (2) of an electronic computer (4) of a motor vehicle includes: i) a plurality of pull-up loads (230a), each pull-up load being coupled to a power supply line (21) and to an input line (20) and including at least one transistor (231a) forming a current mirror with a first current reference module (232a), and ii) a plurality of pull-down loads (230b), each pull-down load being coupled to a ground line (22) and to the input line (20) and including at least one transistor (231b) forming a current mirror with a second current reference module (232b). Each pull-up load and each pull-down load includes a switch (233a, 233b) and the input port is configurable by ordering the closure or opening of each switch. An input circuit (3) including at least one input port and an electronic computer of a motor vehicle including the input circuit are described.

Abstract: A method of communication between at least two automotive electronic control units, including two communication interfaces between the units enabling messages to be sent via one or the other of the interfaces, the units each including a microcontroller linked to the interfaces managing the sending and receiving of the messages according to a given priority level, transmission speed and recurrence, and including a diagnostic system for checking the functionality of the interfaces, a message scheduler, the method including: step 1: introducing a logic switch into each microcontroller, for selecting one or the other interface, step 2: checking that neither interface is defective, step 3: scheduling by the scheduler the sending of messages in succession via one or the other of the interfaces, step 4: selecting one or the other of the interfaces to send the messages scheduled by the message scheduler, step 5: sending the scheduled messages in succession by one or the other of the interfaces.

Abstract: A method of transmitting information making it possible to monitor the operation of an internal combustion engine, includes the steps of: measuring the angular position of a crankshaft via an absolute position sensor provided with a digital output, and transmitting at a frequency f1 to an engine control unit the measured angular position information, encoded in a data string containing N1 bits, transmitting at a frequency f2 of the measured angular position information, encoded in a data string containing N2 bits, the number N2 of bits being greater than the number N1, the frequency f2 being less than or equal to the frequency f1. The encoding in N1 bits allows transmission of angular position information at low resolution, whereas the encoding in N2 bits allows the transmission of high resolution information, able to detect misfirings.

Abstract: An input port (2) of an electronic computer (4) of a motor vehicle includes: i) a plurality of pull-up loads (230a), each pull-up load being coupled to a power supply line (21) and to an input line (20) and including at least one transistor (231a) forming a current mirror with a first current reference module (232a), and ii) a plurality of pull-down loads (230b), each pull-down load being coupled to a ground line (22) and to the input line (20) and including at least one transistor (231b) forming a current mirror with a second current reference module (232b). Each pull-up load and each pull-down load includes a switch (233a, 233b) and the input port is configurable by ordering the closure or opening of each switch. An input circuit (3) including at least one input port and an electronic computer of a motor vehicle including the input circuit are described.

Abstract: A method of transmitting information making it possible to monitor the operation of an internal combustion engine, includes the steps of: measuring the angular position of a crankshaft via an absolute position sensor provided with a digital output, and transmitting at a frequency f1 to an engine control unit the measured angular position information, encoded in a data string containing N1 bits, transmitting at a frequency f2 of the measured angular position information, encoded in a data string containing N2 bits, the number N2 of bits being greater than the number N1, the frequency f2 being less than or equal to the frequency f1. The encoding in N1 bits allows transmission of angular position information at low resolution, whereas the encoding in N2 bits allows the transmission of high resolution information, able to detect misfirings.

Abstract: A device (1) for controlling inductive loads (111, 112), includes: several control stages (321, 322) having a bonding pad (331, 332) for an inductive load (321, 322), a receive input (301, 302) for a conduction activate signal, a switch (121, 122) including control and output electrodes; an enabling circuit (181, 182) measuring the voltage applied to the pad (331, 332) and generating an enabling signal; a conduction re-activate circuit (2) common to the control stages, limiting the voltage on the pad of the various stages to a common level and applying a conduction activate signal to the control electrode of a switch when the enabling signal is generated. The device can be used in particular to ensure an identical duration of supply to loads connected to the bonding pad.

Abstract: A device (1) for controlling inductive loads (111, 112), includes: several control stages (321, 322) having a bonding pad (331, 332) for an inductive load (321, 322), a receive input (301, 302) for a conduction activate signal, a switch (121, 122) including control and output electrodes; an enabling circuit (181, 182) measuring the voltage applied to the pad (331, 332) and generating an enabling signal; a conduction re-activate circuit (2) common to the control stages, limiting the voltage on the pad of the various stages to a common level and applying a conduction activate signal to the control electrode of a switch when the enabling signal is generated. The device can be used in particular to ensure an identical duration of supply to loads connected to the bonding pad.

Abstract: Method for optimizing the number of power outputs of an electronic control device of the application specific integrated circuit type mounted onto a printed circuit board, the number of power outputs required depending on the application. The method includes mounting into two packages having geometrically identical connecting configurations, an integrated circuit of a first type having a first number of power outputs and an integrated circuit of a second type having a second number of power outputs, respectively, in such a manner as to make the two circuits compatible for their installation on the board, and to provide at least two locations on the board for the installation of the packages, the number of power outputs required for the application being obtained by installing in the locations at least two circuits chosen from between the integrated circuit of the first type and the integrated circuit of the second type.

Abstract: Method for optimizing the number of power outputs of an electronic control device of the application specific integrated circuit type mounted onto a printed circuit board, the number of power outputs required depending on the application. The method includes mounting into two packages having geometrically identical connecting configurations, an integrated circuit of a first type having a first number of power outputs and an integrated circuit of a second type having a second number of power outputs, respectively, in such a manner as to make the two circuits compatible for their installation on the board, and to provide at least two locations on the board for the installation of the packages, the number of power outputs required for the application being obtained by installing in the locations at least two circuits chosen from between the integrated circuit of the first type and the integrated circuit of the second type.

Abstract: A device for controlling the ignition and the fuel injection of an internal combustion engine, including a pressure sensor, a position sensor associated with a target fixedly mounted in rotation with the crankshaft, a first computer of the programmed microcomputer type in which are stored values of the angle of advance and the injection time addressable as a function of the engine speed and pressure parameters, and a second computer which, from the output signal of the position sensor applies to the first computer a synchronization signal assuring the marking of each top dead center and/or each bottom dead center, the first computer receiving the output signal from the pressure sensor and computing, as a function of the parameters and under the control of the synchronization signal, the injection time and the angle of ignition advance, the value of the latter being applied by the first computer from the second computer which computes the conduction angle of the ignition coil and controls the conduction of the

Abstract: An apparatus having a device for measuring speed by counting pulses and a device for measuring pressure by counting pulses wherein a first memory stores advance correction coefficients and a second memory stores a value with respect to full-load advance. An advance counter is connected to the outputs of the second memory and to the highest-weight output of the pressure counter by way of a series connection of a binary rate multiplier, a divider which divides by M and a switching device.