| 摘要 |
<p>PURPOSE:To decelerate an electric motor coach at the starting time and to thereafter accelerate rapidly the vehicle by reducing a current which is flowed through a softly starting condenser for the initial prescribed period and increasing the current thereafter. CONSTITUTION:When an accelerator is fully opened abruptly to increase the output Va of the accelerator in a step state, a current which is flowed through a resistor 31 and a diode 32 flows through a condenser 28. When the voltage Vc of the condenser 28 becomes the prescribed value, a transistor 38 is turned ON, and a current which is supplied from a transistor 26 to the condenser 28 increases. The voltage Vc of the condenser 28 is supplied through an operational amplifier 34 to the positive terminal of the operational amplifier 41 of a current limiter. The voltage of a condenser 19 is controlled by the output voltage of an operational amplifier 41, and a control circuit 15 controls the ON time of a power transistor 7 in response to the voltage Vc.</p> |
