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Platform-based gateway routing method for automobile flash diagnosis

A platform-based and routing technology, applied in instruments, test/monitoring control systems, control/regulation systems, etc., can solve problems such as failures in flashing, interference, and diagnosing routing disorders, so as to avoid flashing failures and deliver high-quality products. Guaranteed effect

Active Publication Date: 2021-08-31
JIANGLING MOTORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]The present invention effectively solves the problem of diagnostic routing disorder in the flashing diagnosis of the vehicle end, and can avoid the OTA in the process of offline EOL flashing and after-sales diagnostic equipment flashing The problem that flashing diagnostic interference caused flashing failure

Method used

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  • Platform-based gateway routing method for automobile flash diagnosis
  • Platform-based gateway routing method for automobile flash diagnosis
  • Platform-based gateway routing method for automobile flash diagnosis

Examples

Experimental program
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Effect test

Embodiment 1

[0022] see figure 1 , figure 2 , the gateway routing method of the platformized car brushing diagnosis of the present invention, the 4-way CAN network segments PCAN, BCAN, CCAN, and TCAN of the whole vehicle are connected to the GW, because the diagnostic equipment only supports PCAN, BCAN brushing diagnosis, wherein the diagnostic equipment includes After-sales diagnostic instrument and offline EOL equipment, so for the non-PCAN and BCAN flashing diagnosis of the controller to be flashed, the flashing data will be routed to the target network segment CCAN or TCAN; at the same time, the ECU control unit will respond to the synchronous routing of data Return to the original network segment PCAN or BCAN; the specific routing logic relationship is as follows figure 1 ;The remote flashing diagnosis command is sent through the TBOX module on TCAN, and the TBOX remote flashing diagnosis only supports TCAN flashing diagnosis, so for the non-TCAN flashing controller, the data is rou...

Embodiment 2

[0028] The difference between the platform-based gateway routing method for car brushing diagnosis in this embodiment and Embodiment 1 is: further, (1) the gateway monitors that the flashing diagnosis command sent by TBOX on the TCAN network segment times out (5s No TBOX flashing diagnostic commands are monitored within the TBOX), and the routing policy mode 1 is used to flash the diagnostic routing. The specific strategy is: (a) clear the 500ms diagnostic priority judgment timer, and always maintain the principle of diagnostic device flashing diagnostic priority Routing; (b) Direct routing processing from the first frame message to avoid flashing data routing loss and flashing failure. It will follow the principle of where the request is and where the gateway will route the response. image 3 Write routing flowchart for mode 1.

[0029]Clearing the diagnostic priority judgment timer of 500ms is to ensure that when the OTA remote flashing diagnosis occurs, it will always be i...

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Abstract

The invention relates to a platform-based gateway routing method for automobile flashing diagnosis. The method comprises the following steps of: connecting PCAN, BCAN, CCAN and TCAN network segments of four paths of CAN (Controller Area Network) of a whole automobile to a GW (Gateway), and routing flashing data to the CCAN or TCAN of a target network segment for a controller to be flashed under the condition of non-PCAN and BCAN flashing diagnosis; meanwhile, the flashing ECU responds to the data synchronization route and returns to the original network segment PCAN or BCAN; the diagnosis equipment comprises an after-sales diagnosis instrument and off-line EOL equipment; for a flashing controller on a non-TCAN, data is routed to a corresponding CAN network segment for flashing, and meanwhile, a flashing ECU (Electronic Control Unit) responds to the data and is synchronously routed back to the TCAN; and when the whole vehicle has two types of flashing diagnosis at the same time, if the flashing diagnosis of the diagnosis equipment is higher than the remote flashing diagnosis principle, the flashing diagnosis of the diagnosis equipment is directly switched to. According to the method, the problem that diagnosis routing is disordered in vehicle end flashing diagnosis is effectively solved, and the problem of flashing failure caused by OTA flashing diagnosis interference in the off-line EOL flashing and after-sales diagnosis equipment flashing processes can be avoided.

Description

technical field [0001] The invention relates to a vehicle remote diagnosis technology, in particular to a gateway routing strategy compatible with both remote OTA flashing and diagnostic device flashing. Background technique [0002] With the rapid development of the new four modernizations of automobiles, automotive electronics technology is undergoing rapid changes. With the emergence of OTA technology, the technical research of automotive remote diagnosis has risen to a new level. Remote diagnosis is no longer limited to reading fault codes. , clear fault codes, read basic information and other functions. The emergence of OTA technology provides a new source of power for vehicle after-sales maintenance. The principle of OTA technology is still a flashing diagnostic technology developed based on the UDS principle. OTA remote flashing is based on the flashing diagnostic command issued by the TBOX controller. Since the physical ID address used by the TBOX self-flashing diag...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 夏永强陈江波赵能卿李强吴皓源
Owner JIANGLING MOTORS
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