Method and system for controlling an actuator to rotate a valve
    1.
    发明申请
    Method and system for controlling an actuator to rotate a valve 有权
    用于控制致动器旋转阀的方法和系统

    公开(公告)号:US20070089708A1

    公开(公告)日:2007-04-26

    申请号:US11583787

    申请日:2006-10-20

    IPC分类号: F02D11/10 G06F19/00

    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。

    Method and system for controlling an actuator to rotate a valve
    2.
    发明授权
    Method and system for controlling an actuator to rotate a valve 有权
    用于控制致动器旋转阀的方法和系统

    公开(公告)号:US07637245B2

    公开(公告)日:2009-12-29

    申请号:US11583787

    申请日:2006-10-20

    IPC分类号: F02D11/10 G06F19/00 F02M25/07

    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。

    Valve control device reducing noise
    3.
    发明申请
    Valve control device reducing noise 有权
    阀门控制装置减少噪音

    公开(公告)号:US20060162693A1

    公开(公告)日:2006-07-27

    申请号:US11330118

    申请日:2006-01-12

    IPC分类号: F02M25/07 F02D11/10

    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。

    Valve control device reducing noise
    4.
    发明授权
    Valve control device reducing noise 有权
    阀门控制装置减少噪音

    公开(公告)号:US07198039B2

    公开(公告)日:2007-04-03

    申请号:US11330118

    申请日:2006-01-12

    IPC分类号: F02B47/08 F02M25/07

    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。

    Exhaust recirculation apparatus for engine and method for controlling the same
    5.
    发明授权
    Exhaust recirculation apparatus for engine and method for controlling the same 有权
    用于发动机的排气再循环装置及其控制方法

    公开(公告)号:US07836693B2

    公开(公告)日:2010-11-23

    申请号:US11785815

    申请日:2007-04-20

    IPC分类号: F02B47/08

    摘要: An exhaust recirculation apparatus is provided to an engine. A high-pressure EGR passage branches from upstream of a turbine of a turbocharger in an exhaust system for recirculating exhaust gas to downstream of a compressor of the turbocharger in an intake system. A high-pressure EGR regulating unit controls exhaust gas through the high-pressure EGR passage. A low-pressure EGR passage branches from downstream of the turbine in the exhaust system for recirculating exhaust gas to upstream of the compressor in the intake system. A low-pressure EGR regulating unit controls exhaust gas through the low-pressure EGR passage. A control unit feedback-controls the high-pressure EGR regulating unit, and open-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through the high-pressure EGR passage and the low-pressure EGR passage. The control unit feedback-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through only the low-pressure EGR passage.

    摘要翻译: 向发动机提供排气再循环装置。 高压EGR通道在排气系统中的涡轮增压器的涡轮机的上游分支,用于将排气再循环到进气系统中的涡轮增压器的压缩机的下游。 高压EGR调节单元控制通过高压EGR通路的废气。 低压EGR通道在排气系统中从涡轮机的下游分支,用于将废气再循环到进气系统中的压缩机的上游。 低压EGR调节单元控制通过低压EGR通路的废气。 控制单元反馈控制高压EGR调节单元,并且当废气通过高压EGR通道和低压EGR通道再循环时,对低压EGR调节单元进行开度控制。 当废气仅通过低压EGR通道再循环时,控制单元反馈控制低压EGR调节单元。

    Exhaust recirculation apparatus for engine and method for controlling the same
    6.
    发明申请
    Exhaust recirculation apparatus for engine and method for controlling the same 有权
    用于发动机的排气再循环装置及其控制方法

    公开(公告)号:US20070246028A1

    公开(公告)日:2007-10-25

    申请号:US11785815

    申请日:2007-04-20

    IPC分类号: F02M25/07 F02B33/44 F02B47/08

    摘要: An exhaust recirculation apparatus is provided to an engine. A high-pressure EGR passage branches from upstream of a turbine of a turbocharger in an exhaust system for recirculating exhaust gas to downstream of a compressor of the turbocharger in an intake system. A high-pressure EGR regulating unit controls exhaust gas through the high-pressure EGR passage. A low-pressure EGR passage branches from downstream of the turbine in the exhaust system for recirculating exhaust gas to upstream of the compressor in the intake system. A low-pressure EGR regulating unit controls exhaust gas through the low-pressure EGR passage. A control unit feedback-controls the high-pressure EGR regulating unit, and open-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through the high-pressure EGR passage and the low-pressure EGR passage. The control unit feedback-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through only the low-pressure EGR passage.

    摘要翻译: 向发动机提供排气再循环装置。 高压EGR通道在排气系统中的涡轮增压器的涡轮机的上游分支,用于将排气再循环到进气系统中的涡轮增压器的压缩机的下游。 高压EGR调节单元控制通过高压EGR通路的废气。 低压EGR通道在排气系统中从涡轮机的下游分支,用于将废气再循环到进气系统中的压缩机的上游。 低压EGR调节单元控制通过低压EGR通路的废气。 控制单元反馈控制高压EGR调节单元,并且当废气通过高压EGR通道和低压EGR通道再循环时,对低压EGR调节单元进行开度控制。 当废气仅通过低压EGR通道再循环时,控制单元反馈控制低压EGR调节单元。