| 摘要 |
<p>PURPOSE:To always obtain the prescribed acceleration by applying towing motor currents in response to the quantity of motor driven trains and the quantity of driven trains in a train composition to a controller. CONSTITUTION:When the quantity of electric trains (M trains) in which towing motors are mounted is set to a digital switch 1 and the quantity of driven trains (T trains) are set to a digital switch 2, an ROM3 reads out and outputs a digital value which is proportional to the towing force of a towing motor and hence to the current limit value with the output signals of the switches 1, 2 as address signals. After the digital value is converted via a D/A converter 4 to an analog signal, it is outputted as a motor current limit value. In this manner, even if the electric train composition and operating conditions are different, the object train accelerating performance can always be obtained.</p> |
