The paper examines the virtues of representing the magnetising curves of a switched reluctance motor by customised cubic splines and storing its coefficients in a new data base. It is shown that cubic splines are capable of handling the highly nonlinear characteristics. Furthermore they are found to be well suited for computer efficient generation of the flux linkage/current, torque/angle and current/flux linkage functions as required for drive simulation purposes. A case study demonstrating the use of the new data base as well as its compilation is discussed.