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A parallel flashing method based on can FD bus

A bus and write request technology, applied in the automotive field, can solve the problems of not supporting parallel flashing of multi-channel network segment ECUs, complex multi-channel parallel flashing algorithms, and difficult implementation, so as to improve production efficiency and reduce the number of stations. , the effect of improving production efficiency

Inactive Publication Date: 2021-01-05
重庆菲斯塔新能源汽车科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] In terms of automotive software flashing, at present, a single ECU is used more often, or the entire vehicle ECU is flashed one by one. Basically, parallel flashing of ECUs on multiple network segments at the same time is not supported. The main reason is that The reason is that the multi-channel parallel flashing algorithm is complicated, the cost is high, and the implementation is difficult

Method used

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  • A parallel flashing method based on can FD bus
  • A parallel flashing method based on can FD bus
  • A parallel flashing method based on can FD bus

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Embodiment Construction

[0042] One of the ideas of the present invention to solve the problems in the background technology is that the upper computer is connected to each grid through the CAN bus, and each gateway is connected to the ECU, and the upper computer realizes synchronous parallel writing of each ECU through a parallel algorithm.

[0043] like Figure 4 Shown the present invention provides a kind of parallel flashing method based on CAN FD bus, comprises the following steps,

[0044] Step S1, the host computer sends the flashing command data to the gateway through the CAN FD bus, and the command data includes the flashing data packet file and the ECU ID information of the flashing target ECU;

[0045] The flashing data package file can be a file with *.hex or *.s19 format.

[0046] Step S2, the gateway receives the flashing command data, and extracts the flashing file data packet, ECU ID information and version number information in the command data;

[0047] Step S3, the gateway sends f...

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Abstract

The invention provides a CAN FD bus-based parallel flashing method, which comprises the following steps that: a host computer sends flashing instruction data to a gateway through a CAN FD bus, and theinstruction data comprises a flashing data packet file and ECU ID information of a flashing target ECU; The gateway receives the flashing instruction data and extracts a flashing file data packet, ECU ID information and version number information in the instruction data; The gateway sends flashing request information to the ECUs of the network segments corresponding to the ECU ID information according to the ECU ID information; The gateway receives the flashing state message information fed back by the flashing ECU, packages the flashing state message information into a CAN FD data frame, andfeeds back the CAN FD data frame to an upper computer through a CAN FD bus; And S5, the upper computer receives the flashing state message information and extracts and processes a flashing result. The method has the beneficial effect that the offline production efficiency of the whole vehicle can be improved.

Description

technical field [0001] The invention relates to automobile technology, in particular to a CAN FD bus-based parallel flashing system. Background technique [0002] In the production of automobiles, whether it is the upgrade of software functions and the repair of BUG, ​​or the development of the iterative process of automobile software from research and development to future versions, these are inseparable from software refresh. At present, the production process of the entire vehicle production line has been restricted by software updates and management. In order to control the software version, improve the efficiency of the production line, and separate the development cycle of the vehicle and the vehicle function, software flashing on the production line has become a smart car. The necessary skills for the production line of the times. [0003] In terms of automotive software flashing, at present, a single ECU is used more often, or the entire vehicle ECU is flashed one b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/16G06F13/18G06F8/71G06F8/65
Inventor 不公告发明人
Owner 重庆菲斯塔新能源汽车科技有限公司
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