Development of Electromagnet Shift Unit for Commercial Vehicle

Study on Improving the Controllability of the Shift Unit by Using Numerical Simulation

Abstract

We have developed an electromagnetic shift unit for automated manual transmission. Since the shift unit is strong and low in cost, it is suitable for commercial vehicles. However, there is a problem that the controllability of the shift unit is not enough due to large inductance of the electromagnet. In this report, PD control, sliding mode control and energy evaluation control(EEC), which we propose in this report, were applied to control simulation of the shift unit, and we verified which control is the most suitable for the electromagnetic shift unit. The result confirmed that EEC excels other control methods. The above investigation has proven the validity and usefulness of EEC.