Multi-vehicle-model simulation system based on Linux dynamic link library and working method thereof

Abstract

The invention provides a multi-vehicle-model simulation system based on a Linux dynamic link library and a working method thereof. The multi-vehicle-model simulation system comprises an upper computer, a simulator and an OBD terminal. The simulator is respectively connected with the upper computer and the OBD terminal. The simulator comprises a CAN bus transceiver, a vehicle-mounted OBD interface, a power supply module, an RS232 serial port chip, a Linux system, a main frame system and a dynamic library file. The Linux system is respectively connected with the CAN bus transceiver, the vehicle-mounted OBD interface, the power supply module, the RS232 serial port chip and the main frame system. The main frame system is also connected with the dynamic library file. Dependence of the OBD terminal product on a real vehicle in the test phase can be solved, and the requirement of testing multiple vehicle models in the office can be realized.

Description

technical field [0001] The invention belongs to the field of OBD vehicle networking, and specifically relates to a multi-vehicle simulation system based on a Linux dynamic link library and a working method thereof. Background technique [0002] Most of the vehicle-mounted OBD terminal devices on the market are powered by the vehicle-mounted OBD interface and developed based on the vehicle diagnostic protocol. The device must first be connected to the OBD interface of the vehicle to obtain power, and can work normally by reading the OBD diagnostic data of the actual adapted model. In the R&D and testing stages of such products, most of them need to use analog ECU equipment. Due to the different types of ECUs tested, it is necessary to constantly replace the simulation equipment, which increases the complexity of the test. The function of the simulated ECU equipment is single, and most of them need the assistance of other equipment to realize the same functions as the real v...

AI Technical Summary

Problems solved by technology

Due to the different types of ECUs tested, the simulation equipment needs to be replaced continuously, which increases the complexity of the test.

The function of the simulated ECU equipment is single, and most of them need the assistance of other equipment to achieve the same functions as the real vehicle, which ultimately leads to an increase in research and development costs

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