To provide a control method of an electric vehicle which can suppress vehicle body vibration and obtain a desired acceleration.SOLUTION: The control method of an electric vehicle is given in which: a front wheel drive force command value of a first motor 10 and a rear wheel drive force command value of a second motor 12 are calculated based on a target drive force; an actual pitch angle response representing a degree of vibration occurred in a vehicle body is estimated based on the front wheel drive force command value and the rear wheel drive force command value; a front and rear drive force movement amount Fd which is defined as drive force to be transferred between a front wheel 14 and a rear wheel 16 is calculated to be a distribution ratio of drive force to decrease the degree of vibration based on the actual pitch angle response; and the front wheel drive force command value and the rear wheel drive force command value are corrected based on the front and rear drive force movement amount to calculate a front wheel actual drive force command value Fλf* and a rear wheel actual drive force command value Fλr* which are respectively inputted into the first motor 10 and the second motor 12.SELECTED DRAWING: Figure 6
【課題】車体振動を抑制するとともに所望の加速度を得ることができる電動車両の制御方法を提供する。【解決手段】電動車両の制御方法は、目標駆動力に基づいて、第1モータ10に対する前輪駆動力指令値と第2モータ12に対する後輪駆動力指令値とを算出し、前輪駆動力指令値と後輪駆動力指令値とに基づいて、車体に発生する振動の程度を示す実ピッチ角応答を推定し、実ピッチ角応答に基づいて、振動の程度を低下させる駆動力の分配比となるように前輪14と後輪16との間で移動させるべき駆動力として定まる前後駆動力移動量Fdを算出し、前後駆動力移動量に基づいて前輪駆動力指令値及び後輪駆動力指令値を補正することにより、第1モータ10及び第2モータ12へそれぞれ入力される前輪実駆動力指令値Fλf*及び後輪実駆動力指令値Fλr*を算出する。【選択図】図6
CONTROL METHOD OF ELECTRIC VEHICLE AND CONTROLLER THEREOF
電動車両の制御方法及び制御装置
2022-07-01
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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