| 摘要 |
<p>PURPOSE:To efficiently use a battery by controlling a voltage applied to an induction motor to become maximum. CONSTITUTION:A DC voltage from a vehicle battery 1 is supplied through a 3-phase inverter bridge circuit 3 to an induction motor 5. A function generator 31 outputs a voltage command signal V and a frequency command signal omegaS in response to an angular speed omega and an acceleration/deceleration signal A respectively supplied from a rotating speed detection sensor 7 and an accelerator 13. A 3-phase sinusoidal wave generator 21 generates a 3-phase sinusoidal wave signal having an amplitude and a phase current decided by the signals V, omegaS and the speed omega. The generator 31 is controlled to generate the maximum voltage command signal V so that 3-phase AC voltage supplied to the motor 5 becomes the maximum.</p> |
