DCモータ駆動電気自動車用電子式アクセルの設計法

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This thesis proposes the design method of the electronic accelerator circuit for the electric vehicle. Forthis purpose, analytical solutions of (I0 , V0 ) and (I1 , V1 ) are led, which are, respectively, the initial values ofcurrent and speed on the transistor conduction period and those values on the transistor non-conduction period.Two facts have been clarified that "Abnormal rise" phenomenon appears at the speed in the area of time-ratiowhere the coil-current I0 becomes negative, and there is a time period where the coil current does not flow onthe transistor non-conduction period. The author has named this form of coil current as "Discontinuous modeof the coil current", and that of the coil current corresponding to the area of time-ratio where I0 becomespositive is named "Continuous mode of the coil current". To design the accelerator circuit where a steady speedand the time-ratio are in a linear relation, it is clarified that we have to set the switching frequency, where thecoil current operates on "Continuous mode of the coil current" in all area of the time-ratio.
宮城教育大学の論文