Multiplexing CAN communication method based on hardware-in-the-loop test system

By using a custom DBC file conversion method, multiplexed CAN messages are simplified into a form recognizable by the HIL system, solving the problem of parsing and sending multiplexed messages in the hardware-in-the-loop test system and enabling the normal operation of the hardware-in-the-loop test system.

CN117040962BActive Publication Date: 2026-07-24ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202311185366.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-13
Publication Date
2026-07-24
Estimated Expiration
2043-09-13

AI Technical Summary

Technical Problem

Existing hardware-in-the-loop test systems have poor support for multiplexed CAN communication, which makes it impossible for most bus debugging devices and mainstream test platforms to correctly parse and monitor multiplexed messages.

Method used

By using a custom DBC file conversion method, multiplexed messages are simplified into a form recognizable by the HIL system. Signal values ​​are configured and output in the hardware-in-the-loop system to achieve effective association between control signals and other data bits, ensuring correct parsing and transmission of messages.

Benefits of technology

The correct reception and transmission of multiplexed CAN messages in the hardware-in-the-loop test system was achieved, solving the problem of insufficient support from mainstream test platforms and ensuring reliable communication between the hardware-in-the-loop test system and the actual controller under test.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a multiplexing CAN communication method based on a hardware-in-loop test system, and according to the communication principle of multiplexing messages, the method converts data, which cannot be recognized or directly used by original HIL test equipment, into intermediate data states through a preset DBC file conversion mode on the basis of the HIL system, thereby providing feasibility for subsequent processing and signal receiving and sending. Specifically, according to the signal receiving and sending process, the data on the CAN bus is converted and associated with simulation data, correct message analysis and sending are realized, and the whole hardware-in-loop test system can be correctly operated. The application effectively solves the pain point that mainstream test platforms have poor support for multiplexing CAN messages, realizes multiplexing message receiving and sending on the test platform of this type, and reliably establishes communication between the hardware-in-loop test cabinet and a real controller under test, so that a series of related tests can be normally applied.
Need to check novelty before this filing date? Find Prior Art