The invention relates to the field of automobile electric appliance control, and discloses a control strategy after DCDC faults of an electric automobile and the electric automobile, and the control strategy comprises the steps that when one DCDC breaks down, a whole automobile controller calculates the power supply time according to the current SOC value of a storage battery and the maximum power supply power capable of being provided by the other normal DCDC; when the two DCDCs break down, the vehicle control unit calculates the power supply time according to the current SOC value of the storage battery; and the vehicle control unit obtains the maintenance distance from the vehicle navigation to the nearest maintenance site, calculates the barrier-free driving mileage according to the set driving speed and the power supply time, and limits the power consumption of the low-voltage electrical equipment according to a set rule when the barrier-free driving mileage is smaller than the maintenance distance. According to the control strategy and the electric vehicle, the control strategy of the double-DCDC scheme after the DCDC breaks down is designed, and the driving safety of the vehicle under the DCDC fault condition is guaranteed.
本申请涉及汽车电器控制领域,公开了一种电动汽车DCDC故障后的控制策略及电动汽车,控制策略包含:当一个DCDC发生故障时,整车控制器根据当前蓄电池SOC值及另一个正常的DCDC能提供的最大供电功率,计算供电时间;当两个DCDC发生故障时,整车控制器根据当前蓄电池SOC值,计算供电时间;整车控制器获取车辆导航行驶到最近维修地点的维修距离,并根据设定行驶车速及供电时间计算无障碍行驶里程,并在无障碍行驶里程小于所述维修距离时,整车控制器对低压电器设备按照设定规则进行用电限制。本申请的控制策略及电动汽车,设计双DCDC方案在DCDC发生故障后的控制策略,保障车辆在DCDC故障情况下的行车安全。
Control strategy after DCDC fault of electric automobile and electric automobile
一种电动汽车DCDC故障后的控制策略及电动汽车
03.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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