Control device for putting an electronic member of a communication network on hold prior to rebooting

Abstract

The invention relates to a control device (D) intended for forming part of an electronic member (OE) to be connected to a communication network (R) and which includes: i) a power-supply means (CV), intended for being supplied with power from an electric power source (BA); ii) a control means (MC) supplied with power from the power-supply means (CV) and providing at least the management of a communication protocol of the network (R); iii) an interface means (IN) between the control means (MC) and the network (R), supplied with power from the power-supply means (CV); iv) an auxiliary power supply means (MA) in charge of supplying the control means (MC) with an auxiliary power higher than a first threshold selected during a period predefined following an operating prohibition of said power-supply means (CV) requested by a stop signal when the voltage of the power-supply mains (BA) or the voltage supplied from the power-supply means (CV) is lower than a second selected threshold; and v) a management means (MG) connected to the output (SI) of the interface means (IN) and, in the event of receiving a stop signal, in charge of performing at least one holding action during the predefined period with a view to rebooting at least one portion of the electronic member (OE) under adequate conditions.

Description

technical field [0001] The invention relates to the operation of connected electronic components for use as part of a communication network and connected to an electrical grid, such as (and without limitation) an on-board network of a vehicle (possibly motorized). Background technique [0002] As is known to those skilled in the art, some communication networks include a bus to which connected electronic components are connected in parallel. Data exchange between connected electronic components then takes place via the bus by means of multiplexed frames. This is for example the case for networks of the CAN LS (Controller Area Network Low Speed), CANHS (Controller Area Network High Speed), VAN (Vehicle Area Network) or LIN (Local Interconnect Network) type. Such networks are used in many fields and especially in the field of vehicles (possibly motorized). [0003] The electronic components of these communication networks are typically connected to an electrical grid includi...

AI Technical Summary

Problems solved by technology

Devices of this type allow efficient regulation of the voltage supplying electronic components located downstream, but may appear unable to supply the electronic components with the current necessary for their operation

To avoid this, one should then use a larger (that is, allow more current to be delivered) power supply of this type, or multiple regulated voltage power supplies, which are bulky and expensive

Also, these regulated voltage power supplies can be relatively complex and may only partially compensate for some voltage drops

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