The invention belongs to the technical field of vehicles, and particularly relates to a vehicle electronic control unit refreshing method and system. The refreshing method of the vehicle electronic control unit is characterized by comprising the steps that an upper computer sends a parallel refreshing request frame to a central gateway through a CAN-FD bus, and the parallel refreshing request frame comprises refreshing data of at least two to-be-refreshed electronic control units located in different CAN network segments; the central gateway sends a CAN refreshing request message to each electronic control unit to be refreshed in parallel according to the parallel refreshing request frame; and the to-be-refreshed electronic control unit executes a refreshing operation according to the received CAN refreshing request message. The technical scheme is based on the CAN-FD bus, so the transmission rate of the parallel refreshing request frame can reach 5Mbps or even 10Mbps. The CAN refreshing request message is distributed through the central gateway to realize parallel refreshing of the to-be-updated electronic control units in different network segments, so that the refreshing time ofa normal controller can be greatly reduced. The software updating time of the whole vehicle is reduced, and better use experience is provided for a user.
本发明属于车辆技术领域,具体涉及一种车辆电子控制单元刷新方法及系统。车辆电子控制单元的刷新方法,其特征在于,包括:上位机通过CAN‑FD总线发送并行刷新请求帧至中央网关,所述并行刷新请求帧包括至少两个处于不同CAN网段的待刷新电子控制单元的刷新数据;中央网关根据所述并行刷新请求帧并行发送CAN刷新请求报文至各待刷新电子控制单元;所述待刷新电子控制单元根据接收到的CAN刷新请求报文执行刷新操作。上述技术方案基于CAN‑FD总线,使得并行刷新请求帧的传输速率可达5Mbps甚至10Mbps,并且通过中央网关分发CAN刷新请求报文实现对位于不同网段中待更新电子控制单元的并行刷新,可以大幅度减低正常控制器的刷新时间,减少整车软件更新时间,给用户更好的使用体验。
Vehicle electronic control unit refreshing method and system
一种车辆电子控制单元刷新方法及系统
2020-04-17
Patent
Electronic Resource
Chinese
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
Remote refreshing system, vehicle and remote refreshing method
European Patent Office | 2023
|Intelligent refreshing system and method for vehicle and vehicle
European Patent Office | 2022
|Vehicle-mounted ECU bus refreshing test method and system
European Patent Office | 2023
|Online Contents | 2011