This vehicular master device (11) is equipped with: a cancellation request determination unit (86a) that determines whether a cancellation request has been generated during rewriting of a program froman old program to a new program by the distribution of update data from an update data distribution unit to an electronic control device for which rewriting is being carried out; a rollback method specification unit (86b) that, when it is determined that a cancellation request had been generated, specifies a rollback method for returning the state of the electronic control device to the state before writing of the update data was started, said specification being made in accordance with the type of nonvolatile memory installed in the electronic control device and the data type of the update data of the old program or the new program; and a rollback execution unit (86c) that issues an instruction for carrying out a rollback in accordance with the rollback method to the electronic control device, thereby causing the electronic control device to operate using the old program.
车辆用主装置(11)具备:取消请求判定部(86a),判定在通过更新数据分发部将更新数据分发至改写对象的电子控制装置而从旧程序向新程序的程序改写中是否产生了取消请求;回滚方法确定部(86b),在判定为产生了取消请求的情况下,根据搭载于改写对象的电子控制装置的非易失性存储器的存储器类别和新程序或者旧程序的更新数据的数据种类,确定用于将改写对象的电子控制装置的状态返回到开始写入更新数据前的状态的回滚方法;以及回滚执行部(86c),对改写对象的电子控制装置指示与回滚方法对应的回滚,使改写对象的电子控制装置以旧程序动作。
VEHICULAR MASTER DEVICE, ROLLBACK EXECUTION CONTROL METHOD, ROLLBACK EXECUTION CONTROL PROGRAM, AND DATA STRUCTURE OF SPECIFICATION DATA
车辆用主装置、回滚的执行控制方法、回滚的执行控制程序以及规格数据的数据结构
2021-03-30
Patent
Electronic Resource
Chinese
European Patent Office | 2020
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