| 摘要 |
PROBLEM TO BE SOLVED: To provide a contactor controller capable of suppressing power consumption necessary for holding the ON-state of a contactor on an electric circuit between a motor and an inverter in an electric vehicle.SOLUTION: A contactor controller includes a plurality of positive-electrode side contactors 11 to 13 arranged in parallel to one another on the positive-electrode side of an electric circuit between a battery 20 and an inverter 21 included in an electric vehicle and different from one another in capacity, negative-electrode side contactors 14 to 16 arranged in parallel to one another on the negative-electrode side of the circuit and respectively corresponding to the positive-electrode side contactors 11 to 13, and an ECU 17 for controlling connection/disconnection of the positive-electrode side contactors 11 to 13 and the negative-electrode side contactors 14 to 16 so as to set the minimum necessary numbers of positive-electrode side contactors and negative-electrode side contactors in a connected state according to the value of a current flowing through the circuit.SELECTED DRAWING: Figure 1 |
