The invention relates to the technical field of engineering machinery, and discloses a control system for a downhill working condition and an overhead working truck. The control system comprises a voltage detection device; an energy storage device; a first switching device; and the control device is used for controlling the first switching device to conduct the circuit of the energy storage device to capture the feedback current when the direct current bus voltage is equal to or greater than a first preset voltage, and controlling the first switching device to conduct the circuit of the energy storage device to supply power to the driver when the direct current bus voltage is less than or equal to a second preset voltage. The control strategy can be intervened, the feedback current is captured to reduce the feedback voltage of the driver when the stall risk exists, and the absorbed feedback energy supplies power to the driver when the vehicle speed is reduced, so that the braking torque can be prevented from becoming small, the downhill stall risk is effectively restrained, and stable parking is achieved.

    本发明涉及工程机械技术领域,公开一种用于下坡工况的控制系统及高空作业车。所述控制系统包括:电压检测装置;储能器;第一开关装置;以及控制装置,用于:在直流母线电压等于或者大于第一预设电压时,控制第一开关装置来导通储能器的电路以捕获回馈电流,并在直流母线电压小于或等于第二预设电压时,控制第一开关装置来导通储能器的电路,以为驱动器供电。本发明可介入控制策略,存在失速风险时捕获回馈电流以降低驱动器的回馈电压,且车速降低时由吸收的回馈能量对驱动器进行供电,由此可避免制动力矩变小,从而有效抑制下坡失速风险的出现,实现平稳停车。


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    Title :

    Control system for downhill working condition and overhead working truck


    Additional title:

    用于下坡工况的控制系统及高空作业车


    Contributors:
    ZHONG YI (author) / ZHU HOU (author) / XIONG LU (author) / SHEN YUQIANG (author) / CAO JIARUI (author)

    Publication date :

    2023-07-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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