FOUR QUADRANT TRAVELLING/ RESSURRECTION CONTROL SYSTEM AND CONTROLLING METHOD USING INSULATED GATE BIPOLAR TRANSISTOR

摘要

The control system for integratedly controlling the running and subsidiary function of heavy vehicles such as electric forklift by using IGBT (Insulated Gate Bipolar Transistor) in a microprocessor, comprises: a sensor (10) for detecting a temporary state of a vehicle; a microprocessor (20) for judging the temporary state of vehicle according to the signal from the sensor and controlling the motion of vehicle; memory (30) for storing parameters in order to drive the vehicle; a gate driving section (40) for transmitting IGBT signal from the microprocessor and protecting IGBT from the over-current; an IGBT section (50) for applying power supply signal to a DC motor according to the signal from the gate driving section; a DC motor connected with the IGBT section.