The invention relates to a hybrid electric vehicle and a high-voltage battery control method and device thereof, which are applied to an HCU, and the high-voltage battery control method comprises the following steps: under the condition that a main relay of a high-voltage battery of the hybrid electric vehicle is closed, if a preset condition is met, starting the control of the high-voltage battery; if yes, controlling a driving motor of the hybrid electric vehicle to enable the rotating speed of the driving motor to reach a first idle speed; sending a high-voltage disconnection instruction for disconnecting the main relay to the high-voltage battery; controlling the driving motor to enable the rotating speed of the driving motor to reach a second idle speed, wherein the second idle speed is higher than the first idle speed; and controlling the driving motor so as to output a predetermined voltage for heating the high-voltage battery, whereby it is possible to heat the high-voltage battery without using the power of the high-voltage battery when the power of the high-voltage battery is low.
本发明涉及一种混合动力汽车及其高压电池控制方法和装置,应用于HCU,该高压电池控制方法包括:在所述混合动力汽车的高压电池的主继电器闭合的情况下,如果满足预定条件,则控制所述混合动力汽车的驱动电机以使其转速达到第一怠速;向所述高压电池发送用于断开所述主继电器的高压断开指令;控制所述驱动电机以使其转速达到第二怠速,所述第二怠速高于所述第一怠速;以及控制所述驱动电机以使其输出用于对所述高压电池进行加热的预定电压,由此,能够在高压电池功率较低时不利用高压电池的功率为高压电池加热。
Hybrid electric vehicle and high-voltage battery control method and device thereof
混合动力汽车及其高压电池控制方法和装置
2024-01-12
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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