The invention relates to a program update system, comprising a plurality of general-purpose ECUs capable of executing a plurality of types of programs and exhibiting different functions depending on the type of a program to be executed, wherein the general-purpose ECU includes an active ECU that is in a state of outputting information for controlling a vehicle-mounted device mounted in a vehicle and a standby ECU that is in a state of not outputting information for controlling the vehicle-mounted device. When updating the program, the standby ECU acquires the update program transmitted from an external server outside of the vehicle, stores the acquired update program in the storage unit of the ECU, and transitions to active ECU that outputs information for controlling the vehicle-mounted device. The active ECU that is executing the program of the previous version of the update program stops outputting information for controlling the vehicle-mounted device, and transitions to standby ECU.
本发明涉及一种程序更新系统,具备多个通用ECU,该多个通用ECU能够执行多种程序,并根据执行的程序的种类发挥不同的功能,通用ECU包括动作中ECU和待机中ECU,所述动作中ECU处于输出用于控制搭载于车辆的车载装置的信息的状态,所述待机中ECU处于不输出用于控制车载装置的信息的状态,在更新程序的情况下,待机中ECU取得从车外的外部服务器发送的更新程序并存储于本ECU的存储部,转变为输出用于控制车载装置的信息的动作中ECU,并且正在执行更新程序的前一版本的程序的动作中ECU停止用于控制车载装置的信息的输出而转变为待机中ECU。
Program update system and update processing program
程序更新系统及更新处理程序
2021-09-07
Patent
Electronic Resource
Chinese
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