The invention discloses an engine load protection method in the tractor PTO operation process. The method comprises the following steps that an ECU obtains the actual engine torque; the GCU obtains the actual generator torque; the HCU obtains PTO torque according to a torque distribution rule by combining the actual engine torque and the actual generator torque; the HCU obtains the current maximum output torque of the engine according to the PTO torque; the HCU obtains the change trend of the actual engine torque, and when the actual engine torque exceeds the current maximum output torque of the engine, a torque control instruction is generated and sent to the GCU and the MCU; and the MCU and the GCU execute corresponding operation required by the torque control instruction according to the torque control instruction. According to the invention, the engine torque can be regulated and controlled in advance; the engine torque is reduced, normal operation of a carrier and an agricultural implement is kept to the maximum extent, and the engine is protected from rotating speed pressing and even flameout.

    本发明公开了一种拖拉机PTO作业过程中发动机负荷保护方法,包括如下步骤:ECU获取实际发动机扭矩;GCU获取实际发电机扭矩;HCU结合所述实际发动机扭矩与实际发电机扭矩,根据扭矩分配规则,获得PTO扭矩;HCU根据所述PTO扭矩,得到当前发动机最大输出扭矩;HCU获取所述实际发动机扭矩的变化趋势,当所述实际发动机扭矩将超过所述当前发动机最大输出扭矩,生成扭矩控制指令,并发送至GCU与MCU;MCU和GCU根据所述扭矩控制指令,执行所述扭矩控制指令要求的相应操作。本发明能够对于发动机扭矩进行预先的调控;实现降低发动机扭矩同时最大限度的保持载具与农机具的正常运行,保护发动机免于压转速甚至熄火的效果。


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    Title :

    Engine load protection method in tractor PTO operation process


    Additional title:

    一种拖拉机PTO作业过程中发动机负荷保护方法


    Contributors:
    ZHENG ZEMING (author) / HUANG FAHUA (author) / DENG ZIHAO (author) / LAO YANJUN (author) / LI GUOQIANG (author)

    Publication date :

    2025-02-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


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



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