| 摘要 |
PURPOSE:To obtain a motor control system adapted for an electric motor vehicle in which available power is very limited by comparing to calculate a terminal voltage of a storage battery, an induced voltage of a motor with a generated voltage of the motor. CONSTITUTION:Allowance voltage calculating means 6 for calculating an absolute value V1 of a voltage difference between a terminal voltage of a storage battery B and an induced voltage of a motor M is connected to an output terminal of voltage detecting means 3. Generating voltage means 9 for calculating an absolute value V2 of a generated voltage of the motor M is connected to driving current calculating means 8. Comparing means 10 so outputs a signal as to output a drive current responsive to an operating amount of an accelerator to a winding of the motor M from output means 1 in the case of V1>V2. In the case of V1-V2, it so outputs a signal as to output a current responsive to a maximum voltage waveform to be converted from the battery B to the winding of the motor M from the means 1. Accordingly, an operation of an extremely high energy efficiency is performed. |
