
Application of FAST in friction calculation and predictive analysis of passenger car engines


Application of FAST in friction calculation and predictive analysis of passenger car engines
Xiaoli Kong,
FAW Qixin Power (Changchun) Technology Co., Ltd.
China User Conference 2026
This case study systematically introduces the application practice of the FAST tool in the low-friction development of FAW passenger car engines. Leveraging the rapid calculation advantages of semi-empirical models, this method achieves sensitivity quantification of key parameters such as main bearing journals, connecting rod journals, piston ring tension, and oil viscosity during the conceptual design phase. By building models of the main motion system and valve train, it accurately predicts the changes in friction power under different design schemes. The results are validated against motoring friction tests, with minimal deviations observed across all modules. This approach effectively supports the formulation of low-friction targets and the decision-making process for design solutions.
This was presented by Xiaoli Kong, FAW Qixin Power (Changchun) Technology Co., Ltd. at the 2026 China User Conference on 20 May 2026.
Realis Simulation, formerly Ricardo Software.
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