Communication system
AssigneeDenso Corporation
InventorsYukihiro YAMAKAWA, Tomoya TOKUNAGA
Life of this patent
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Abstract
A communication system mounted on a movable object and multiple electronic control units communicable with each other is provided. Each electronic control unit is activated by receiving power supplied from a power supply via a relay and is stopped by cutoff of the supplied power. The communication system determines whether there is an abnormality in which the relay wrongly becomes an ON state. Upon determining that there is the abnormality, the communication system executes a power distribution stop operation including turning OFF the relay that is located upstream of a location of the abnormality in power distribution from the power supply.
Claims10
A communication system mounted on a movable object, comprising
- a plurality of electronic control units arranged so that communication is performable therebetween, wherein
- each of the plurality of electronic control units is activated by receiving power supplied from a power supply via a relay and is stopped by cutoff of the supplied power, and
- the plurality of electronic control units includes:
- a power distribution control device including the relay;
- and
- a management device that generates an operation control request for controlling operation of the relay and outputs the operation control request to the power distribution control device via the communication,
- wherein:
- the power distribution control device includes an ON OFF determination unit that performs a determination as to ON and OFF of the relay based on an output value being a value related to an output of the relay;
- the management device or the power distribution control device includes an abnormality determination unit that determines whether or not there is an abnormality in which the relay wrongly becomes an ON state, based on a result of the determination by the ON OFF determination unit and the operation control request;
- upon the abnormality determination unit determining that there is the abnormality, the management device executes a power distribution stop operation including turning OFF the relay that is located upstream of a location of the abnormality in power distribution from the power supply;
- and
- the power distribution control device, the management device, the ON OFF determination unit and the abnormality determination unit are each provided by at least a processor and a memory.
Dependencies are inferred from the claim text.