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    • 1. 发明公开
    • 팬회전수 제어방법
    • 风扇转速控制方法
    • KR1020060025986A
    • 2006-03-22
    • KR1020047018272
    • 2004-03-18
    • 캬타피라 재팬 가부시키가이샤
    • 후루타히데토오카모토가즈시게아다치노리유키
    • F01P7/04E02F9/00F04B49/06F04D27/00
    • F04D27/004E02F9/2095E02F9/226E02F9/24F01P7/044
    • The temperature of a cooling subject fluid is detected and when the flow rate of the cooling subject fluid passing through a cooling means (30) as in the case of the lever in an operative position is high, the fan rpm of the cooling fan (17) of the cooling means (30) is controlled to a fan target rpm (Ntf) so that the detected temperature of the cooling subject fluid is equal to a preset target temperature. In the AEC state or one touch low idle state with the lever in the neutral position, since the flow rate of the cooling subject fluid passing through the cooling means (30) decreases, the fan rpm of the cooling fan (17) is controlled to a new fan target rpm (Ntfnew) lower than the fan target rpm (Ntf). At this time, the new fan target rpm (Ntfnew) with the lever in the neutral position is calculated by multiplying the ratio of the engine rpm (Nhie) with the lever in an operative position to the engine rpm (Ncoe) with the lever in the neutral position by the fan target rpm (Ntf) at that time. Thermal strains produced in the cooling means (30) having the cooling fan (17) are reduced to improve the durability of the cooling means (30).
    • 检测冷却对象流体的温度,并且当在操作位置的杆的情况下通过冷却装置(30)的冷却对象流体的流量高时,冷却风扇(17)的风扇转速 )被控制为风扇目标转速(Ntf),使得冷却对象流体的检测温度等于预设目标温度。 在杠杆处于中立位置的AEC状态或一触式低怠速状态下,由于通过冷却装置(30)的冷却对象流体的流量降低,所以将冷却风扇(17)的风扇转速控制为 新的风扇目标转速(Ntfnew)低于风扇目标转速(Ntf)。 此时,通过将杠杆处于中立位置的新风扇目标转速(Ntfnew)通过将操作位置的发动机转速(Nhie)与杠杆的比率乘以发动机转速(Ncoe)来计算,杠杆为 当时的风扇目标转速(Ntf)的中立位置。 在具有冷却风扇(17)的冷却装置(30)中产生的热应变被减小以提高冷却装置(30)的耐久性。
    • 2. 发明公开
    • 팬회전속도 제어방법
    • 风扇转速控制方法
    • KR1020060025985A
    • 2006-03-22
    • KR1020047018271
    • 2004-03-18
    • 캬타피라 재팬 가부시키가이샤
    • 후루타히데토도요우라노부미오카모토가즈시게
    • F01P7/04F01P5/04F04B49/06F04D27/00
    • F04D27/004F01P7/044
    • A method for controlling the number of revolutions of a fan (17) for cooling fluid being cooled by rotating a fan motor (15) through control of a pump/motor system (19) for operating the fan motor (15) with working fluid being fed from a fan pump (13) being driven by an engine (11). When the engine is started, the pump/motor system (19) is controlled such that the number of revolutions of the fan is started at a minimum number of revolutions (Nmin) (step 1), and the minimum number of revolutions (Nmin) is sustained for at least several seconds (step 2). Upon elapsing at least several seconds, the number of revolutions of the fan is increased gradually from the minimum number of revolutions (Nmin) (step 3), and then the pump/motor system (19) is controlled to make a transition to a target number of revolutions (Ntf) of the fan upon elapsing at least several seconds (step 4). Generation of a peak pressure or pressure hunting leading to damage of the pump/motor system (19) can be prevented.
    • 一种用于控制用于冷却流体的风扇(17)的转速的方法,所述风扇(17)通过使用工作流体操作所述风扇马达(15)的泵/马达系统(19)旋转来旋转风扇马达(15)而被冷却 从由发动机(11)驱动的风扇泵(13)进给。 当发动机启动时,泵/马达系统(19)被控制成使得以最小转数(Nmin)(步骤1)开始风扇的转数,并且最小转数(Nmin) 持续至少几秒钟(步骤2)。 经过至少几秒钟后,风扇的转数从最小转数(Nmin)逐渐增加(步骤3),然后控制泵/马达系统(19)以转换到目标 经过至少几秒钟的风扇的转数(Ntf)(步骤4)。 可以防止产生导致泵/马达系统(19)损坏的峰值压力或压力波动。