The invention relates to the technical field of agricultural machinery control, and discloses a tractor power reversing control method, a controller, a system and a medium. The method comprises the steps that when gear change information of the tractor shows that a driver aims to control the tractor to enter a forward gear or a reverse gear, a neutral gear switching valve is controlled to be closed, so that an oil way of a clutch assembly is correspondingly conducted; and correspondingly executing a pressure control strategy based on two times of pressure pre-charging and time-phased boosting for the forward proportional valve or the backward proportional valve until a preset maximum pressure for ensuring non-slip combination of the corresponding clutch is reached, so that the corresponding proportional valve is opened and the pressure pushes the corresponding clutch to be combined. And then the gearbox is driven to switch gears. The corresponding proportional valves are controlled based on the pressure control strategy of two-time pre-charging and time-phased boosting so as to drive the clutch to be rapidly combined, and meanwhile the situation that the impact degree of clutch combination is too large is avoided.

    本发明涉及农机控制技术领域,公开了一种拖拉机动力换向控制方法、控制器、系统及介质。所述方法包括:在拖拉机的挡位变化信息示出驾驶员旨在控制拖拉机进入前进挡或后退挡时,控制空挡开关阀关闭以使得离合器总成油路相应被导通,以及对应地针对前进比例阀或后退比例阀执行基于两次压力预充和分时段升压的压力控制策略,直到达到保证相应离合器无滑移结合的预设最大压力,以使得相应比例阀被开启而压力推动相应离合器结合,进而驱动变速箱进行挡位切换。本发明基于两次预充和分时段升压的压力控制策略来控制相应比例阀以驱动离合器快速结合,并同时避免了离合器结合的冲击度过大。


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    Title :

    Tractor power reversing control method, controller, system and medium


    Additional title:

    拖拉机动力换向控制方法、控制器、系统及介质


    Contributors:
    YANG SU (author) / GUO GANG (author) / LI XINYI (author) / ZHANG TIEJIANG (author)

    Publication date :

    2023-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / 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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