- 专利标题: Program update system, vehicle control device, and program update method
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申请号: US17908502申请日: 2021-01-15
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公开(公告)号: US12086585B2公开(公告)日: 2024-09-10
- 发明人: Yusuke Kogure , Takaaki Nokaido , Kentaro Yoshimura
- 申请人: Hitachi Astemo, Ltd.
- 申请人地址: JP Hitachinaka
- 专利权人: Hitachi Astemo, Ltd.
- 当前专利权人: Hitachi Astemo, Ltd.
- 当前专利权人地址: JP Hitachinaka
- 代理机构: Foley & Lardner LLP
- 优先权: JP 20060932 2020.03.30
- 国际申请: PCT/JP2021/001177 2021.01.15
- 国际公布: WO2021/199575A 2021.10.07
- 进入国家日期: 2022-08-31
- 主分类号: G06F9/44
- IPC分类号: G06F9/44 ; G06F8/65 ; B60R16/023
摘要:
Updating of a program is realized even with a small-sized temporary storage area. A program update system distributes an update program from an update program distributing unit to a vehicle control device. The update program distributing unit encrypts an update program by a predetermined unit of encryption, and transmits the update program, which has been encrypted, by a predetermined unit of transfer to the vehicle control device to be updated, the vehicle control device decrypts the received update program by the unit of encryption, and stores the update program, which has been decrypted, by a predetermined unit of writing in a program storage unit, and the unit of writing is an integral multiple of the unit of encryption.
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