Patent ID: 11947953
Assignee: DENSO CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC B  G

Claim 26:
27. A vehicle master device configured to instruct a rewrite target electronic control unit (ECU) to write update data received from a center device and distribute the update data to the rewrite target ECU, the vehicle master device comprising at least one processor configured to serve as:
a mode determination unit that is configured to determine whether an external mode for a screen display related to an approval to a program update is set; and
a screen display instruction unit that is configured to, when the mode determination unit determines that the external mode is set:
prioritize the external mode over a customization mode for the screen display related to the approval to the program update, the customization mode being set through a user's customization operation; and
control a display terminal to display a progress screen of the program update according to a current update phase and a setting of the external mode.