PROBLEM TO BE SOLVED: To provide a technique for suppressing generation of vibration in a vehicular body even in the case of motor torque being controlled in a scene where a road inclination is erroneously estimated.SOLUTION: A control method, for use in an electric vehicle that includes a motor for functioning as a travel power source and providing a vehicle with regenerative brake force, performs: calculating a torque target value for the motor to output brake-drive torque in accordance with an accelerator operation amount; estimating disturbance torque exerted to the motor as resistance corresponding to a road inclination estimated on the basis of a wheel speed and the torque target value; executing a correction in which to remove the disturbance torque component from the torque target value on the basis of the estimated disturbance torque; controlling the motor on the basis of the post-correction torque target value; and cancelling the correction when a variance frequency of the disturbance torque reaches or exceeds a predetermined frequency.SELECTED DRAWING: Figure 9
【課題】路面勾配が誤推定された場面でモータトルクが制御されても、車体に振動が発生するのを抑制する技術を提供することを目的とする【解決手段】走行駆動源として機能するとともに、車両に回生制動力を与えるモータを備える電動車両の制御方法であって、アクセル操作量に応じた制駆動トルクをモータに出力させるトルク目標値を算出し、車輪速と、トルク目標値とに基づき推定した路面勾配に対応する抵抗として前記モータに作用する外乱トルクを推定する。そして、推定した外乱トルクに基づいて、トルク目標値から当該外乱トルク成分を除去する補正を実行し、補正後のトルク目標値に基づきモータを制御し、外乱トルクの変動周波数が予め定めた周波数以上になると、該補正を中止する。【選択図】図9
ELECTRIC-VEHICULAR CONTROL METHOD AND ELECTRIC-VEHICULAR CONTROL APPARATUS
電動車両の制御方法、及び、電動車両の制御装置
2018-05-31
Patent
Elektronische Ressource
Japanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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