초록 ▼

A device for controlling an electric vehicle motor that optimally discharges a smoothing capacitor, connected to the input terminals of an inverter in accordance with the condition of an electric vehicle. The device includes a motor drive means, the smoothing capacitor connected in parallel with the

A device for controlling an electric vehicle motor that optimally discharges a smoothing capacitor, connected to the input terminals of an inverter in accordance with the condition of an electric vehicle. The device includes a motor drive means, the smoothing capacitor connected in parallel with the motor drive means, switching means operating in connection with an operation switch operated by the vehicle operator, discharging means for discharging the smoothing capacitor, draw detecting means, and discharge restricting means. The system opens the switching means to shut off output from the battery and to discharge the smoothing capacitor when the switching means is open, but restricts discharging during a towing or drawing condition of the electric vehicle.

대표청구항 ▼

A system for controlling an electric vehicle motor in an electric vehicle, which system comprises motor drive means which includes a plurality of switching devices and drives the motor with power from a battery, a capacitor, connected in parallel with said motor drive means, which capacitor smoothes

A system for controlling an electric vehicle motor in an electric vehicle, which system comprises motor drive means which includes a plurality of switching devices and drives the motor with power from a battery, a capacitor, connected in parallel with said motor drive means, which capacitor smoothes output from said battery, and discharging means operating in connection with switching means operated by an operator of the electric vehicle for discharging said capacitor, wherein, said discharging means comprises draw detecting means for detecting the electric vehicle being drawn and discharge restricting means for restricting the activation of said discharging means when said draw detecting means detects the electric vehicle being drawn.