PROBLEM TO BE SOLVED: To prevent an adverse effect of heat from occurring to a three-phase coil even if motor torque varies and a state of a current distribution to the three-phase coil varies.SOLUTION: The control system of a motor for driving a vehicle comprises: a motor torque acquiring portion 155 that acquires motor torque that a three-phase AC motor outputs; a current distribution state acquiring portion 156 that acquires a state of a current distribution to each phase coil of a stator of the three-phase AC motor; a temperature sensor that detects a temperature of a specific phase coil of the three-phase coils as a coil sensor temperature; and a motor torque control portion 157 that renews the other phase estimated temperature, an estimated temperature of the other phase coil, using an integrated value of a rising temperature per unit time at each timing of the other phase coil, a coil other than the specific coil of the three-phase coils, and controls the motor torque using at least the other phase estimated temperature. The rising temperature per unit time of the other phase coil at each timing is determined by the motor torque control portion 157 according to a combination of the motor torque and the current distribution state at each timing.SELECTED DRAWING: Figure 3
【課題】モータトルクが変動したり三相コイルへの電流分配状態が変動したりしても、コイルに熱による悪影響が発生することを防止する。【解決手段】三相交流モータが出力するモータトルクを取得するモータトルク取得部155と、三相交流モータのステータの各相のコイルへの電流分配状態を取得する電流分配状態取得部156と、三相コイルのうち特定相コイルの温度をコイルセンサ温度として検出する温度センサと、三相コイルのうち特定相コイル以外のコイルである他相コイルの各時点における単位時間あたりの上昇温度の積算値とを用いて、他相コイルの推定温度である他相推定温度を更新し、他相推定温度を少なくとも用いて、モータトルクを制御するモータトルク制御部157と、を備える。各時点における他相コイルの単位時間あたりの上昇温度は、各時点におけるモータトルクと電流分配状態の組に応じてモータトルク制御部157により決定される。【選択図】図3
CONTROL SYSTEM OF MOTOR FOR DRIVING VEHICLE
車両駆動用モータの制御システム
2016-11-17
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
MOTOR DRIVING SYSTEM, VEHICLE AND DRIVING SYSTEM CONTROL METHOD
European Patent Office | 2025
|Multi-motor driving system, control method of multi-motor driving system and vehicle
European Patent Office | 2023
|Motor driving system, vehicle power assembly comprising motor driving system and vehicle
European Patent Office | 2023
|