The invention relates to the technical field of charging methods, in particular to an electric vehicle alternating current slow charging method which comprises the following steps: S1, an awakening stage; s2, a charging condition judgment stage; s3, an alternating current charging stage; s4, a charging stop and charging dormancy stage; in the process of the alternating current charging stage, if the OBC has an unrecoverable fault, entering an OBC fault processing stage S5; in the process of the alternating current charging stage in the step S3, if the electronic lock breaks down or a user presses down an electronic lock switch to make the electronic lock switch be in poor contact, the step S6 is executed, and the electronic lock breaks down or the electronic lock is pressed down for processing; in the process of the alternating current charging stage in the step S3, if the DC/DC or the BMS generates an irreversible fault, entering a DC/DC or BMS fault processing stage in the step S7; according to the invention, the CC/CP is controlled by the BMS, AC charging is triggered, and mutual information delivery is carried out between the VCU and the OBC as well as between the VCU and the BCM, so that AC charging is completed.
本发明涉及充电方法技术领域,具体是一种电动汽车交流慢充方法,包括以下步骤:S1、唤醒阶段;S2、充电条件判定阶段;S3、交流充电阶段;S4、充电停止与充电休眠阶段;交流充电阶段进行的过程中,若OBC出现不可恢复的故障,则进入到S5、OBC故障处理阶段;在步骤S3、交流充电阶段进行的过程中,电子锁有故障或用户按下电子锁开关,使电子锁开关接触不良,则进入到S6、电子锁故障或按下电子锁处理阶段;在步骤S3、交流充电阶段进行的过程中,若DC/DC或BMS产生不可逆故障,则进入到S7、DC/DC或BMS故障处理阶段;本发明中CC/CP由BMS控制,触发交流充电,VCU与OBC及BCM之间相互信息交付,完成交流充电。
Alternating current slow charging method for electric vehicle
一种电动汽车交流慢充方法
2023-08-04
Patent
Electronic Resource
Chinese
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