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1.发明授权公开(公告)号：US06993909B2
公开(公告)日：2006-02-07
申请号：US10695873
申请日：2003-10-30
申请人： Akio Matsunaga , Masato Katsuno
发明人： Akio Matsunaga , Masato Katsuno
CPC分类号： F02D41/145 , F02D41/0072 , F02D41/401 , F02D2041/0067 , F02D2041/007 , F02M26/05 , F02M26/22 , F02M26/28 , F02M26/33 , Y02T10/47
摘要： An EGR-gas temperature estimation apparatus for an internal combustion engine which has an exhaust circulation pipe and an EGR-gas cooling apparatus. The estimation apparatus obtains the cooling efficiency ηegr of the EGR-gas cooling apparatus from the temperature Tex of EGR gas at the inlet of the exhaust circulation pipe and the flow rate Gegr of the EGR gas, and obtains the temperature THW of engine cooling water, used as a coolant for the EGR-gas cooling apparatus. Subsequently, the estimation apparatus calculates the temperature Tegr of the EGR gas at the outlet of the exhaust circulation pipe by the expression Tegr=Tex−ηegr·(Tex−THW). Since the cooling efficiency ηegr greatly changes depending on the EGR-gas flow rate Gegr and the EGR-gas temperature Tex, the estimation apparatus can accurately estimate the cooling efficiency ηegr, and therefore can accurately estimate the EGR-gas temperature Tegr.
摘要翻译： 一种具有排气循环管和EGR气体冷却装置的内燃机的EGR气体温度推定装置。 估算装置从废气循环管入口处的EGR气体的温度Tex和EGR气体的流量Gegr获得EGR气体冷却装置的冷却效率etaegr，并获得发动机冷却水的温度THW， 用作EGR气体冷却装置的冷却剂。 随后，估计装置通过表达式Tegr = Tex-etaegr。（Tex-THW）计算废气循环管出口处的EGR气体的温度Tegr。 由于冷却效率etaegr根据EGR气体流量Gegr和EGR气体温度Tex而极大地变化，因此估计装置能够准确地估计冷却效率etaegr，因此能够精确地估计EGR气体温度Tegr。
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公开(公告)号：US20060162693A1
公开(公告)日：2006-07-27
申请号：US11330118
申请日：2006-01-12
CPC分类号： F02D41/0055 , F02D11/10 , F02M26/49 , F02M26/50 , Y02T10/47
摘要： A valve control device corrects a change rate of an opening degree of a valve in accordance with engine rotation speed when deposit elimination operation is performed. The valve control device corrects an inclination between a positive maximum opening degree and a negative maximum opening degree of the valve in accordance with the engine rotation speed when the deposit elimination operation is performed. Thus, when the engine rotation speed is low and a noise accompanying the deposit elimination operation becomes more audible, the change rate of the opening degree of the valve is reduced. As a result, the noise accompanying the deposit elimination operation is reduced and annoyance for vehicle occupants is reduced.
摘要翻译： 阀门控制装置根据执行沉积物消除操作时的发动机转速来校正阀的开度的变化率。 当执行沉积物消除操作时，阀控制装置根据发动机转速校正阀的正最大开度和负最大开度之间的倾斜度。 因此，当发动机转速低并且随着沉积物消除操作的噪声变得更可听见时，阀的开度的变化率降低。 结果，伴随着沉积物消除操作的噪音减少，车辆乘客的烦恼减少。
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公开(公告)号：US20070089708A1
公开(公告)日：2007-04-26
申请号：US11583787
申请日：2006-10-20
摘要： In a system, an actuator is linked to a valve rotatably installed in a passage through which gas flows. The actuator changes torque to be applied to the valve so as to adjust a rotational position of the valve based on a deviation between a current position and a target position. In the system, a first storing unit stores therein a first threshold. The first threshold is defined in a variation range within which a torque parameter is variable depending on change in the torque to be applied to the valve. The first threshold allows whether there is a possibility that an operation of the actuator is unstable. If the torque parameter substantially shifts either to or through the first threshold in the variation range, a restricting unit restricts variation in the torque parameter with the gas-flow being substantially kept through the passage.
摘要翻译： 在系统中，致动器连接到可旋转地安装在气体流过的通道中的阀门上。 执行器改变施加到阀的扭矩，以便基于当前位置和目标位置之间的偏差来调节阀的旋转位置。 在该系统中，第一存储单元在其中存储第一阈值。 第一阈值在变化范围内定义，其中扭矩参数根据施加到阀的转矩的变化而变化。 第一阈值允许执行器的操作是否不稳定的可能性。 如果转矩参数基本上在变化范围内移动到或超过第一阈值，则限制单元限制转矩参数的变化，其中气流基本保持通过通道。
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公开(公告)号：US07198039B2
公开(公告)日：2007-04-03
申请号：US11330118
申请日：2006-01-12
CPC分类号： F02D41/0055 , F02D11/10 , F02M26/49 , F02M26/50 , Y02T10/47
摘要： A valve control device corrects a change rate of an opening degree of a valve in accordance with engine rotation speed when deposit elimination operation is performed. The valve control device corrects an inclination between a positive maximum opening degree and a negative maximum opening degree of the valve in accordance with the engine rotation speed when the deposit elimination operation is performed. Thus, when the engine rotation speed is low and a noise accompanying the deposit elimination operation becomes more audible, the change rate of the opening degree of the valve is reduced. As a result, the noise accompanying the deposit elimination operation is reduced and annoyance for vehicle occupants is reduced.
摘要翻译： 阀门控制装置根据执行沉积物消除操作时的发动机转速来校正阀的开度的变化率。 当执行沉积物消除操作时，阀控制装置根据发动机转速校正阀的正最大开度和负最大开度之间的倾斜度。 因此，当发动机转速低并且随着沉积物消除操作的噪声变得更可听见时，阀的开度的变化率降低。 结果，伴随着沉积物消除操作的噪音减少，车辆乘客的烦恼减少。
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公开(公告)号：US07637245B2
公开(公告)日：2009-12-29
申请号：US11583787
申请日：2006-10-20
摘要： In a system, an actuator is linked to a valve rotatably installed in a passage through which gas flows. The actuator changes torque to be applied to the valve so as to adjust a rotational position of the valve based on a deviation between a current position and a target position. In the system, a first storing unit stores therein a first threshold. The first threshold is defined in a variation range within which a torque parameter is variable depending on change in the torque to be applied to the valve. The first threshold allows whether there is a possibility that an operation of the actuator is unstable. If the torque parameter substantially shifts either to or through the first threshold in the variation range, a restricting unit restricts variation in the torque parameter with the gas-flow being substantially kept through the passage.
摘要翻译： 在系统中，致动器连接到可旋转地安装在气体流过的通道中的阀门上。 执行器改变施加到阀的扭矩，以便基于当前位置和目标位置之间的偏差来调节阀的旋转位置。 在该系统中，第一存储单元在其中存储第一阈值。 第一阈值在变化范围内定义，其中扭矩参数根据施加到阀的转矩的变化而变化。 第一阈值允许执行器的操作是否不稳定的可能性。 如果转矩参数基本上在变化范围内移动到或超过第一阈值，则限制单元限制转矩参数的变化，其中气流基本保持通过通道。
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