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1. 发明授权

US06367452B1 Fuel injection system 有权
标题翻译：燃油喷射系统
公开(公告)号：US06367452B1
公开(公告)日：2002-04-09
申请号：US09594731
申请日：2000-06-16
申请人： Nobuhiko Shima , Tadashi Nonomura
发明人： Nobuhiko Shima , Tadashi Nonomura
IPC分类号： F02M4100
CPC分类号： F02D41/3845 , F02D2041/2027 , F02D2250/31 , F02M59/34 , F02M63/0225
摘要： A common rail fuel injection system for controlling the opening area of the fuel metering valve inserted in the fuel supply passage for supplying the fuel to the fuel injection pump to control, to a target pressure, fuel pressure in the common rail which holds the fuel delivered from the fuel injection pump. In the steady-state operation, the solenoid current is controlled by duty control at control frequency preset with an importance placed on the control stability. After determining the transient of control from the amount of change in the target common rail pressure which is a target of control, the control frequency is changed to a lower low frequency for a specific time until the common rail pressure reaches the target pressure. As a result, the valve body moves fast, thereby gaining a high control response despite of unsteady behavior of the valve body of the metering valve.
摘要翻译：一种共轨燃料喷射系统，用于控制插入到燃料供给通道中的燃料计量阀的开口面积，以将燃料供给到燃料喷射泵，以将目标压力控制在保持输送的燃料的共轨中的燃料压力从燃油喷射泵。在稳态运行中，螺线管电流由预设控制频率的占空比控制，重点在于控制稳定性。根据作为控制对象的目标共轨压力的变化量确定控制瞬变，将控制频率变更为较低的低频直到共轨压力达到目标压力。结果，阀体快速移动，从而获得高的控制响应，尽管计量阀的阀体不稳定。

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