| 摘要 |
<p>PURPOSE:To form a current controlling system optimum under all operating conditions by altering the gains of the current controlling system by a chopper period and the value of battery voltage. CONSTITUTION:A microcomputer 1 inputs signals from an accelerator device 8, a brake gear 9, a main circuit 10, a speed detecting circuit 19 and a battery condition detecting circuit, computes motor current command value which must be flowed to a motor 132 according to controlling characteristics previously memorized to a memory, compensation-computes current controlling and gives a flowing-rate control circuit 15 of an armature chopper and a field chopper a chopper period and a rate of flowing. The microcomputer 1 corrects the gains of a current controlling system according to the chopper period and the value of battery voltage by interrupting pulses from an interruption circuit 14.</p> |
