Update management system

Abstract

An object of the present invention is to obtain an update management system that makes it possible to perform writing and switching of a program in an ECU configuration having redundancy while a vehicle is traveling, even when the ECU configuration does not have a double-sided memory structure. An update management system of the present invention is mounted on a vehicle and includes: a plurality of arithmetic operation devices; and an update management device that controls the plurality of arithmetic operation devices. The plurality of arithmetic operation devices include at least a first arithmetic operation device and a second arithmetic operation device. The update management device determines whether the second arithmetic operation device is executing a redundant process while the vehicle is traveling, and when determining that the second arithmetic operation device is not executing the redundant process, the update management device restricts execution of the redundant process by the first arithmetic operation device and updates a program stored in the second arithmetic operation device.

Dependencies are inferred from the claim text.