The invention discloses an electric vehicle DC conversion control system. The DC conversion control system comprises a DCDC converter, a power battery, a storage battery and a VCM. The positive electrode of the power battery is connected with the positive electrode input end of the DCDC converter through a charging relay; the positive electrode of the power battery is connected with the positive electrode input end of the DCDC converter through a resistor and a pre-charging relay in sequence; the negative electrode of the power battery is connected with the negative electrode input end of theDCDC converter; the positive electrode of the storage battery is connected with the positive electrode output end of the DCDC converter; the positive electrode of the storage battery is connected withthe IGN_ON end of the DCDC converter after sequentially passing through the fuse and the ON gear switch, the negative electrode of the storage battery is connected with the negative electrode outputend of the DCDC converter, and the VCM is in signal connection with the DCDC converter through a CAN bus. The design not only can realize remote awakening and direct awakening of the DCDC converter, but also is rigorous in control logic and high in reliability.

    一种电动汽车直流变换控制系统,所述直流变换控制系统包括:DCDC变换器、动力电池、蓄电池和VCM,所述动力电池的正极通过充电继电器与DCDC变换器正极输入端相连接,动力电池的正极依次通过电阻、预充继电器与DCDC变换器正极输入端相连接,所述动力电池的负极于DCDC变换器负极输入端相连接,所述蓄电池的正极与DCDC变换器正极输出端相连接,所述蓄电池的正极依次通过保险和ON档开关后与DCDC变换器的IGN_ON端相连接,所述蓄电池的负极与DCDC变换器负极输出端相连接,所述VCM通过CAN总线与DCDC变换器信号连接。本设计不仅能够实现DCDC变换器的远程唤醒和直接唤醒,而且控制逻辑严谨、可靠性高。


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    Title :

    Electric vehicle DC conversion control system and control method thereof


    Additional title:

    一种电动汽车直流变换控制系统及其控制方法


    Contributors:
    XIAO CONG (author) / DOU MINGJIA (author) / WANG BIN (author) / LIU XIN (author) / WU LONG (author) / WANG WEICAI (author) / XU YUAN (author) / LIN LING (author)

    Publication date :

    2020-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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