Mathematical Model for Characteristics of Oil Pump Driven by Electric Motor

摘要

This report presents a mathematical model for characteristics of a motor-driven oil pump in which an electric motor and hydraulic pump have been integrated into a single unit. Characteristics of the motor-driven oil pump should be predicted at the design stage. However, calculation thereof is not simple because the characteristics of the electric motor and oil pump influence one another. Therefore, a mathematical model to predict the characteristics of the assembled electric motor-driven oil pump has been established based on investigation of individual pump and motor characteristics. Also, actual characteristics of the electric motor-driven oil pump were investigated and compared with the values calculated from the model.