A new energy vehicle ecu remote program update management system and method

Abstract

The invention discloses a new energy vehicle ECU remote program update management system and method. The system includes an enterprise platform and a vehicle-mounted terminal. The enterprise platform includes a program import unit, an information extraction and conversion unit, a program update library unit, a vehicle management unit, and a program delivery unit. The vehicle-mounted terminal includes a connected storage unit and an update unit. The update management process is to import and convert the update program into a standard format, and deliver the update program to the vehicle owner according to the matching status of the vehicle ECU model and ECU program version number, and update the program on the vehicle terminal under the permitted state. The update program of the present invention adopts a universal format, which reduces the requirements on the vehicle terminal hardware and reduces the cost; through the method of jointly controlling the timing of the program update by the VCU and the ECU that needs to be updated, it avoids the program update during the use of the vehicle And cause immeasurable danger; realize the ECU program update between different CAN subnets of the vehicle, and avoid the illegal update of the program.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted remote control, in particular to a new energy vehicle ECU remote program update management system and method. Background technique [0002] The existing method of remote program update of automobile ECU still has some disadvantages: [0003] 1. The program file updated by the vehicle terminal is in S19 format. The premise of being able to remotely update the program is that the main control chip of the ECU must support the S19 file. But the fact is that not all main control chips currently support program download and update in S19 format, and this solution has limitations. [0004] 2. There are multiple CAN networks in the vehicle (power CAN, body CAN, etc.), and multiple CAN networks are connected through a gateway. If the ECU and the in-vehicle terminal are not in the same network, there is no method for implementing program update in the existing solution. [0005] 3. It is forbidde...

AI Technical Summary

Problems solved by technology

If the ECU and the vehicle terminal are not on the same network, there is no way to update the program in the existing solution

[0005] 3. It is forbidden to update the ECU program when the vehicle is running, charging or in other operating states, because the ECU program update process is an abnormal working process, and if the program is updated forcibly, it may bring safety hazards to the vehicle

[0006] 4. Without version control and product model verification functions, it is prone to program error updates or repeated updates

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