The invention provides a hybrid power system and engineering machinery. The hybrid power system comprises an engine; a transmission assembly which can be connected with or disconnected from the engine; a power battery pack which is electrically connected with an electric actuating element of the engineering machinery so as to supply power to the electric actuating element; a motor generator set intransmission connection with the output end of the transmission assembly, wherein the motor generator set is electrically connected with the power battery pack; and a hydraulic pump in transmission connection with the transmission assembly and used for driving a hydraulic system of the engineering machinery, wherein the engine can drive the motor generator set to charge the power battery pack, and can also supply power to the motor generator set through the power battery pack, so that the motor generator set outputs power to the hydraulic pump. According to the technical scheme, the power battery pack serves as a main energy device, and the hydraulic system of the engineering machinery and an electrical execution element are driven, so that energy consumption of the engine can be effectively reduced, energy conservation and emission reduction are facilitated, and noise and air pollution are reduced.

    本发明提供了一种混合动力系统和工程机械。其中,混合动力系统包括:发动机;传动组件,传动组件能够与发动机连接或断开;动力电池组,与工程机械的电气执行元件电连接,以向电气执行元件供电;电动发电机组,与传动组件的输出端传动连接,电动发电机组与动力电池组电连接;液压泵,与传动组件传动连接,用于驱动工程机械的液压系统;其中,发动机能够驱动电动发电机组向动力电池组充电,也能够通过动力电池组向电动发电机组供电,使电动发电机组向液压泵输出动力。本发明的技术方案,以动力电池组作为主要能源装置,实现对工程机械的液压系统和对电气执行元件的驱动,可有效降低发动机能耗,有利于节能减排、降低噪声和空气污染。


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    Title :

    Hybrid power system and engineering machinery


    Additional title:

    混合动力系统和工程机械


    Contributors:
    WANG JIANLI (author) / LIU YONGDONG (author) / CHEN RI (author)

    Publication date :

    2021-01-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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