US 2009/0157252 A1Published application

Vehicle electronic system and vehicle

AssigneeHitachi, Ltd.

InventorsMakoto Saen, Kenichi Osada, Shigeru Oho

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Abstract

In a vehicle electronic system including a plurality of LSI boards, LSIS which cannot control a user interface such as image or audio directly issue a command for notifying a vehicle occupant of its own information via networks and an information control LSI receives the request to output a message. A mechanism for setting priority of processings regarding LSI status information notification to be lower than that of an apparatus control processing is provided in each of LSIs and networks so that real-time property of the apparatus control processing is maintained. In order to reduce network load regarding the LSI status information notification, a message content itself is stored in a memory in a vehicle information processing unit previously so that only an ID for identifying the message content is transmitted.

Claims12

Dependent claims

A vehicle electronic system comprising:

a plurality of apparatus control unit LSIs which include a monitoring circuit monitoring temperature information and operation speed information of the apparatus control unit LSI, and controls a corresponding movable apparatus part;
a plurality of information processing LSIs which control an image display device or an audio output device;
an apparatus control system network connected to the plurality of apparatus control unit LSIs;
an information processing system network connected to the information processing LSIs;
and
a gateway LSI connected between the apparatus control system network and the information processing system network, wherein
the plurality of apparatus control unit LSIs notify the gateway LSI of first abnormality information via the apparatus control system network upon detecting an operation abnormality based on a monitored result obtained by the monitoring circuit,
the gateway LSI notifies the information processing LSI of second abnormality information based on the first abnormality information via the information processing system network upon receiving the first abnormality information from one of the plurality of apparatus control unit LSIs, and
the information processing LSI outputs a message based on the second abnormality information to the image display device or the audio output device upon receiving the second abnormality information.

6 more elements

Dependencies are inferred from the claim text.