Importance

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Abstract

Disclosed is a regeneration device used for industrial electric vehicle including a main controller having a microcomputer, a contactor circuit having forward and reverse current paths comprised of a DC choke coil, a battery, and an acceleration switch connected to the batter. The device includes, forward and reverse switches having first passive terminals connected in common to an 'ON' terminal of the acceleration switch, second passive terminals connected in common to an 'OFF' terminal of the acceleration switch through a brake relay, and driving terminals respectively connected to first and second magnetization coils; a forward/reverse driving transistor connected between the first and second magnetization coils and a ground terminal, the forward/reverse driving transistor being controlled by the main controller; a regeneration driving transistor connected between a third magnetization coil connected to the 'ON' terminal of the acceleration switch and the ground terminal, the regeneration driving transistor being controlled by the main controller; a first field effect transistor (FET) connected between the battery and a terminal of the contactor circuit, the first FET being controlled by the main controller; a regeneration contactor connected to another terminal of the contactor circuit through a DC motor; and a second FET connected to another terminal of the contactor circuit through a resistor, the second FET being controlled by the main controller.

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First Claim