To suppress motor torque fluctuation.SOLUTION: An electric vehicle control method is a control method by which a torque command value according to vehicle information is calculated, and an electric vehicle comprising a motor, which is driven according to said torque command value, is controlled. This electric vehicle control method has: a first torque target value calculation step at which a first torque target value, which is a target value of an output torque of the motor, is calculated on the basis of vehicle information; a second torque target value calculation step at which a second torque target value, which is used for feedback control, is calculated on the basis of a motor rotation speed; a third torque target value calculation step at which a limit value is set to a value according to the first torque target value, and a third torque target value is generated on the basis of the second torque target value; and a torque command value calculation step at which a torque command value is calculated by addition of the first torque target value and the third torque target value. When an absolute value of the first torque target value is lower than a prescribed torque value at a limitation step, setting of a limit value according to the first torque target value is interrupted.SELECTED DRAWING: Figure 2
【課題】モータトルクの変動を抑制する。【解決手段】電動車両の制御方法は、車両情報に応じたトルク指令値を算出し、該トルク指令値に応じて駆動するモータを備える電動車両の制御方法である。電動車両の制御方法は、車両情報に基づいてモータの出力トルクの目標値である第1トルク目標値を算出する第1トルク目標値算出ステップと、モータの回転数に基づきフィードバック制御に用いる第2トルク目標値を算出する第2トルク目標値算出ステップと、制限値を第1トルク目標値に応じた値に設定し、第2トルク目標値とに基づいて第3トルク目標値を生成する第3トルク目標値算出ステップと、第1トルク目標値と第3トルク目標値とを加算することでトルク指令値を算出するトルク指令値算出ステップと、を有する。制限ステップにおいて、第1トルク目標値の絶対値が所定トルク値を下回る場合には、制限値の第1トルク目標値に応じた設定を中断する。【選択図】図2
ELECTRIC VEHICLE CONTROL METHOD, AND ELECTRIC VEHICLE CONTROLLER
電動車両の制御方法、及び、電動車両の制御装置
2019-10-03
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 |
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