To provide an electric vehicle capable of maintaining the charging rate of a second battery within a predetermined range while avoiding transfer of power between a first battery and the second battery as much as possible.SOLUTION: An electric vehicle V comprises: a first battery ESE; a second battery ESP having a higher output weight density and a lower energy weight density than the first battery ESE; a motor generator M; a power conversion circuit 3; and a control device 5 for controlling the power conversion circuit 3. The control device 5 controls the power conversion circuit 3 so that, at the time of power running operation of the motor generator M, at least a portion of power required to change a vehicle speed among required power is discharged from the second battery ESP and remaining power excluding the power discharged from the second battery ESP from the required power is discharged from the first battery ESE, and controls the power conversion circuit 3 so that, at the time of regenerative operation of the motor generator M, power generated by the motor generator M is charged to the second battery ESP.SELECTED DRAWING: Figure 1
【課題】第1バッテリと第2バッテリとの間における電力の授受をできるだけ避けながら、第2バッテリの充電率を所定の範囲内に維持できる電動車両を提供すること。【解決手段】電動車両Vは、第1バッテリESEと、第1バッテリESEよりも出力重量密度が高くかつエネルギ重量密度が低い第2バッテリESPと、電動発電機Mと、電力変換回路3と、電力変換回路3を制御する制御装置5と、を備える。制御装置5は、電動発電機Mの力行運転時には、要求電力のうち車速を変化させるために必要な電力の少なくとも一部が第2バッテリESPから放電され、かつ要求電力から第2バッテリESPから放電される電力を除いた残電力が第1バッテリESEから放電されるように電力変換回路3を制御し、電動発電機Mの回生運転時には、電動発電機Mで発電される電力が第2バッテリESPに充電されるように電力変換回路3を制御する。【選択図】図1
ELECTRIC VEHICLE
電動車両
2019-07-22
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
ELECTRIC VEHICLE CONTROL DEVICE, ELECTRIC VEHICLE AND ELECTRIC VEHICLE CONTROL METHOD
European Patent Office | 2022
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