Geschwindigkeitsregelvorrichtung für elektrische Fahrzeuge.

摘要

The speed control device for electric motor vehicles shown in the drawing is characterized in that it includes an accelerator portion 50, a reference chopping wave generator 120, a drive control portion 60 for generating a motor driving PWM signal, a brake control portion 70 for outputting a dynamic braking PWM signal and a braking signal, a switch control portion 80 for switching the PWM signals from one to the other in accordance with the brake switching signal and outputting it, and a motor driving portion 100 for drive-controlling or brake-controlling the motor. It further includes an inverted chopping wave generator for generating a chopping wave having an inverted waveform relative to the reference chopping wave and outputting this chopping wave to the brake control portion 70.