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Multi-domain modeling and simulation of clutch actuation system

Clutch actuation systems are complex systems where hydraulic, pneumatic, mechanical and electrical components are coupled. Such systems have grate influence on vehicle performance. This paper presents a detailed clutch actuation model composed of components from multi-domains like mechanical and pneumatic actuation system, hydraulic boosting system, etc. Various components and subsystem models, such as the driver, engine, gear pairs, clutches, etc., are integrated into an overall vehicle system model according to the transmission power flow and control logic. The model is implemented using the Modelica programming language. The simulation of the clutch actuation system was carried out for the analysis of drivability, shift quality and vehicle overall performance.