Semi-physical simulation system of fuel cell vehicle

Abstract

The invention discloses a fuel cell vehicle semi-physical simulation system. The simulation system is a forward simulation model built based on Matlab / Simulink, and the simulation system comprises a working condition model, a driver model, a hybrid power source model, a driving motor model, a transmission system model, a wheel model and a longitudinal dynamical model. A method comprises the steps: completing the building of an energy distribution strategy model based on Simulink / Stateflow; automatically converting an energy distribution strategy model into an embedded C code by using a Real-Time Workshop Embedded Coder, loading the automatically generated code into an IDE environment, compiling the code, downloading the compiled code to a rapid development prototype controller, compiling and downloading a whole vehicle model to dSPACE, and carrying out semi-physical hardware-in-loop simulation verification by using a dSPACE platform. The hybrid power source model comprises a fuel cell model and a power cell model. According to the energy distribution strategy design method, a user completes simulation platform construction of a vehicle model to be designed by modifying parameters in each model attribute, so that the energy distribution strategy can be directly optimized and calculated, the energy distribution strategy design method is simplified, and the design efficiency is improved.

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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