The invention discloses a method for controlling a vehicle-mounted charger, the vehicle-mounted charger and a vehicle. The method for controlling the vehicle-mounted charger comprises the steps of obtaining an output current value of a DCDC module, a first output voltage value of a bus capacitor, a second output voltage value of a resonance circuit, a power grid voltage value and a power grid current value; the PFC module is controlled according to the output current value of the DCDC module, the power grid current value, the power grid voltage value and the first output voltage value, so that the output current value of the DCDC module is within the target current value range; and controlling the DCDC module according to the first output voltage value or the second output voltage value, so that the first output voltage value is within the target voltage value range. By adopting the method, the capacitance value of the bus capacitor can be reduced under the condition that the normal function of the vehicle-mounted charger is ensured, and the purpose of replacing an electrolytic capacitor with a relatively small bus capacitor such as a thin-film capacitor is achieved.
本发明公开了一种控制车载充电机的方法、车载充电机和车辆,控制车载充电机的方法包括:获取DCDC模块的输出电流值、母线电容上的第一输出电压值、谐振电路的第二输出电压值、电网电压值和电网电流值;根据DCDC模块的输出电流值、电网电流值、电网电压值和第一输出电压值控制PFC模块,以使DCDC模块的输出电流值在目标电流值范围内;根据第一输出电压值或第二输出电压值控制DCDC模块,以使第一输出电压值在目标电压值范围内。采用该方法在确保车载充电机正常功能的情况下可以减小母线电容的容值,实现采用较小的母线电容如薄膜电容替代电解电容的目的。
Method for controlling vehicle-mounted charger, vehicle-mounted charger and vehicle
控制车载充电机的方法、车载充电机和车辆
2023-03-31
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
Vehicle-mounted charger circuit, vehicle-mounted charger and electric vehicle
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