A DCDC output voltage control method and control system for a hybrid electric vehicle are provided. The method includes: when a DCDC converter is in a buck operation mode, determining whether the vehicle is in a high power output demand state or an abnormal engine flame-out state; if so, setting the output voltage of the DCDC converter to a normal target voltage; otherwise, determining whether a low-voltage load has a charging voltage boost demand, and when the low-voltage load has the charging voltage boost demand and the power of a high-voltage battery is greater than a power threshold, setting the output voltage of the DCDC converter according to the voltage level corresponding to the charging voltage boost demand, to meet the charging demand of the low-voltage load. The fuel economy of a hybrid power assembly system can be optimized.


    Access

    Download


    Export, share and cite



    Title :

    DCDC OUTPUT VOLTAGE CONTROL METHOD AND CONTROL SYSTEM FOR HYBRID ELECTRIC VEHICLE


    Contributors:
    JING JUNCHAO (author) / LIU YIQIANG (author) / HUANG WEISHAN (author) / YANG JUN (author) / YU XUEMEI (author) / WANG RUIPING (author) / SCHOLTEN INGO (author)

    Publication date :

    2024-06-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    DCDC OUTPUT VOLTAGE CONTROL METHOD AND CONTROL SYSTEM FOR HYBRID VEHICLE

    JING JUNCHAO / LIU YIQIANG / HUANG WEISHAN et al. | European Patent Office | 2024

    Free access

    DCDC OUTPUT VOLTAGE CONTROL METHOD AND CONTROL SYSTEM FOR HYBRID VEHICLE

    JING JUNCHAO / LIU YIQIANG / HUANG WEISHAN et al. | European Patent Office | 2023

    Free access

    DCDC output voltage control method and control system of hybrid power vehicle

    JING JUNCHAO / LIU YIQIANG / HUANG WEISHAN et al. | European Patent Office | 2022

    Free access

    Coordination control method of DCDC and generator for hybrid electric vehicle

    GAO JIN / JIA WEI / LIU XINGJUN et al. | European Patent Office | 2025

    Free access

    Vehicle, micro-hybrid system and DCDC converter control method thereof

    ZHANG HUALONG / ZHOU LIBIN / GUAN JING et al. | European Patent Office | 2024

    Free access