CONTROL DEVICE FOR MOTOR DRIVEN VEHICLE, CONTROL METHOD FOR MOTOR DRIVEN VEHICLE AND CONTROL PROGRAM FOR MOTOR DRIVEN VEHICLE
To provide a technique capable of stably driving a motor even under an extremely low temperature.SOLUTION: When a temperature Temp of a battery 110 is below a predetermined value TH (predetermined temperature) at which power that can drive a motor 130 is continuously extractable, a control unit 102...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a technique capable of stably driving a motor even under an extremely low temperature.SOLUTION: When a temperature Temp of a battery 110 is below a predetermined value TH (predetermined temperature) at which power that can drive a motor 130 is continuously extractable, a control unit 102 controls an inverter 101 so as to extract a pulse-like direct current from the battery 110, by cyclically repeating an ON-period to extract a direct current that can drive the motor 130 from the battery 110 and an OFF-period in which, after the ON-period, power is not extracted from the battery 110 until a direct current that can drive the motor 130 becomes extractable from the battery 110 again. The inverter 101 converts a direct current extracted from the battery 110 during the ON-period to a phase current.SELECTED DRAWING: Figure 2
【課題】極低温下でも、モータを安定駆動する。【解決手段】制御部102は、バッテリ110の温度Tempが、モータ130を駆動可能な電力を連続して取り出し可能な所定値TH(所定温度)を下回る場合、バッテリ110からモータ130を駆動可能な直流電流を取り出すON期間と、当該ON期間の後、再度バッテリ110からモータ130を駆動可能な直流電流を取り出し可能となるまでバッテリ110からの電力の取り出しを行わないOFF期間とを周期的に繰り返すことで、バッテリ110からパルス状直流電流を取り出すようにインバータ101を制御する。インバータ101は、ON期間中にバッテリ110から取り出した直流電流を、相電流に変換する。【選択図】図2 |
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