GATEWAY DEVICE, IN-VEHICLE NETWORK SYSTEM, AND FIRMWARE UPDATE METHOD
GATEWAY DEVICE, IN-VEHICLE NETWORK SYSTEM, AND FIRMWARE UPDATE METHOD
- New search for: UJIIE YOSHIHIRO
- New search for: MATSUSHIMA HIDEKI
- New search for: ANZAI JUN
- New search for: NAKANO TOSHIHISA
- New search for: HAGA TOMOYUKI
- New search for: MAEDA MANABU
- New search for: KISHIKAWA TAKESHI
- New search for: UJIIE YOSHIHIRO
- New search for: MATSUSHIMA HIDEKI
- New search for: ANZAI JUN
- New search for: NAKANO TOSHIHISA
- New search for: HAGA TOMOYUKI
- New search for: MAEDA MANABU
- New search for: KISHIKAWA TAKESHI
A gateway device is connected to a plurality of electronic controllers on-board a vehicle. The gateway device acquires firmware update information, which includes at least a part of updated firmware to be applied to a first electronic controller, patch data, and information indicating where to apply the patch data. When the gateway device determines that the first electronic controller does not include a firmware cache for performing a pre-update firmware cache operation, the gateway device executes a proxy process. In this regard, the gateway device requests the first electronic controller to transmit boot ROM data to the gateway device, merges the patch data and existing firmware to create updated boot ROM data with updated firmware, and transmits the updated boot ROM data to the first electronic controller that updates the boot ROM data and resets the first electronic controller with the updated firmware.
Document information
GATEWAY DEVICE, IN-VEHICLE NETWORK SYSTEM, AND FIRMWARE UPDATE METHOD
2024-02-15
Patent
Electronic Resource
English
| IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
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