VEHICULAR ELECTRONIC CONTROL DEVICE, PROGRAM UPDATE METHOD AND SERVER DEVICE

Title:

VEHICULAR ELECTRONIC CONTROL DEVICE, PROGRAM UPDATE METHOD AND SERVER DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/188096

Kind Code:

A1

Abstract:

Provided is a vehicular electronic control device capable of updating an old program to a new program. The vehicular electronic control device comprises: a storage unit that stores the old program; a receiving unit that sequentially receives a plurality of divided data items obtained by dividing, into a prescribed data length, either difference data containing a data section based on the differences between the old program and the new program and a command section for generating the new program by reflecting the data section in the old program, or difference compressed data in which the difference data has been compressed; and a reconstruction unit that executes reconstruction processing for reconstructing the new program on the basis of the divided data items received by the receiving unit and the old program. The reconstruction unit puts the reconstruction processing on hold and waits to receive the next divided data item if the command section and/or the data section are missing at least partially from the divided data received by the receiving unit.

Inventors:

TERAOKA HIDETOSHI (JP)
KUROSAWA KENICHI (JP)
NAKAHARA FUMIHARU (JP)

Application Number:

PCT/JP2017/015770

Publication Date:

November 02, 2017

Filing Date:

April 19, 2017

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

G06F11/00; B60R16/02; G06F9/445

Foreign References:

JP2004234503A	2004-08-19
JP2006079492A	2006-03-23
JP2003337723A	2003-11-28

Other References: