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Patent Searching and Data


Title:
ELECTRONIC CONTROL DEVICE, AND REPROGRAMMING METHOD FOR ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/090418
Kind Code:
A1
Abstract:
The present invention allows an increase in the flexibility of reprogramming a secure area. A secure area 2 stores a secure control code 210 and secure control data 220 for operating a secure control unit 20, and secure writing software 211 for updating the secure control code and the secure control data. The secure control code and the secure control data have a secure control code 210A stored on the operation surface in a secure code storage unit 21 and a secure data storage unit 22, and a secure control code 210B stored on the non-operation surface in a main code storage unit and a main data storage unit. The secure control unit operates the secure writing software according to the secure control information 210A and updates the secure control information 210B with the update information received from outside via the main area.

Inventors:
YAMAZAKI HIROKI (JP)
YAMAMOTO NAOYUKI (JP)
YANO MASASHI (JP)
MORITA NOBUYOSHI (JP)
Application Number:
PCT/JP2019/040168
Publication Date:
May 07, 2020
Filing Date:
October 11, 2019
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60R16/02; G06F8/65; G06F21/57
Foreign References:
JP2010501953A2010-01-21
US20150199190A12015-07-16
US20150172255A12015-06-18
JP2016207219A2016-12-08
Attorney, Agent or Firm:
TODA Yuji (JP)
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