A fuel cell vehicle hardware-in-the-loop simulation system

Abstract

The invention discloses a semi-physical simulation system for a fuel cell vehicle. The simulation system is a forward simulation model built based on Matlab / Simulink. The simulation system includes a working condition model, a driver model, a hybrid power source model, a drive motor model, Transmission system model, wheel model, longitudinal dynamics model, based on Simulink / Stateflow to complete the construction of the energy distribution strategy model, and use Real-Time Workshop Embedded Coder to automatically convert the energy distribution strategy model into embedded C code, and load the automatically generated code to the IDE environment, compile and download to the rapid development prototype controller, and then compile and download the vehicle model to dSPACE, and use the dSPACE platform to conduct half-in-the-loop hardware-in-the-loop simulation verification. The hybrid power source model includes a fuel cell model and a power battery model. By modifying the parameters in each model attribute, the user completes the construction of the simulation platform of the model to be designed, and can directly optimize the calculation of the energy distribution strategy, which simplifies the design method of the energy distribution strategy and improves the design efficiency.

Description

technical field [0001] The invention relates to the field of fuel cell vehicle testing, in particular to a fuel cell vehicle semi-physical simulation system. Background technique [0002] At present, with the continuous development and improvement of the automobile industry, the number of automobiles in the world continues to increase, and automobiles have become an indispensable tool for human production and life. However, with the development of the automobile industry, people's demand for oil is also increasing, and the problems of resource scarcity and environmental pollution are becoming more and more serious, which have endangered people's daily life and health. Therefore, countries around the world and major automobile manufacturers are involved in the research and development of new energy vehicles. [0003] At present, there are three main types of new energy vehicles that have been promoted, namely pure electric vehicles, plug-in hybrid vehicles and fuel cell vehi...

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Problems solved by technology

[0005] Fuel cell vehicles usually use one or two other power sources on the basis of fuel cells to form a hybrid power source system. The dual power source system of fuel cell and power battery (FC+B) is commonly used. There are few test simulation platforms for batteries, and most of them are simulation platforms that directly use power batteries, or gasoline engine-power battery hybrid simulation platforms, which are difficult to meet the test requirements of FC+B dual power source mode, and all Computer simulation system is difficult to meet the hardware-in-the-loop real-time test and verification of fuel cell vehicle energy management strategy

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