Electric control device for vehicles, program updating method, and server apparatus
US10725772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Apr 19, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electric control device for vehicles capable of updating an old program stored in a storage unit with a new program. A reception unit sequentially receives a plurality of pieces of division data acquired by dividing difference data, which includes a data section based on a difference between the old program and the new program and a command section used for generating the new program by reflecting the data section on the old program, or difference compression data acquired by compressing the difference data for every predetermined data length A restoration process restores the new program based on each division data received by the reception unit and the old program. If at least a part of the command section and the data section is not included in the division data received by the reception unit, the restoration unit suspends the restoration process and waits for reception of next division data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.