Research on in-Loop Test of Automatic Gearbox Model Based on AMESim and Simulink
In vehicle controller hardware-in-the-loop testing,a single environment is often used to build a complex controlled model,but there are problems such as contradictions between the accuracy of the built model and the real-time calculation.In or-der to solve this problem,this paper constructs a vehicle model in a co-simulation environment.The model is composed of the en-gine,hydraulic torque converter,vehicle dynamics model and automatic shift controller model established using Simulink,and the clutch,planetary gear,hydraulic system,and hydraulic retarder model established using AMESim.A model-in-the-loop simulation control interface was created in Veristand,and model-in-the-loop simulation under NEDC conditions was performed based on Veristand.The simulation results show that the built model runs stably,has a small amount of calculation,and can ac-curately output various signals during the vehicle shifting process,which provides a research foundation for hardware-in-the-loop vehicle controller testing.