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公开(公告)号：US20120325189A1
公开(公告)日：2012-12-27
申请号：US13531182
申请日：2012-06-22
CPC分类号： F02M25/0793 , F02D9/02 , F02D41/0077 , F02D41/20 , F02D2041/2058 , F02D2200/1012 , F02D2250/16 , F02M26/23 , F02M26/48 , F02M26/54 , F02M26/70 , Y02T10/47
摘要： When a constant driving voltage is applied to a motor driving an EGR valve so that the EGR opening degree is varied, an angular speed of the EGR valve becomes minimal at a position where the driving torque of the EGR valve becomes maximal. In view of this, while an opening degree of the EGR valve is varied with a constant driving voltage applied to the motor, the EGR opening degree where the angular speed becomes minimal is learned as a full-close position.
摘要翻译： 当对驱动EGR阀的电动机施加恒定的驱动电压使得EGR开度变化时，在EGR阀的驱动转矩变为最大的位置，EGR阀的角速度变得最小。 鉴于此，当EGR阀的开度随着施加到电动机的恒定驱动电压而变化时，角速度变得最小的EGR开度被学习为完全关闭位置。
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公开(公告)号：US09458785B2
公开(公告)日：2016-10-04
申请号：US13489715
申请日：2012-06-06
CPC分类号： F02D41/1498 , F02D41/0055 , F02D41/0065 , F02D41/08 , F02D41/2438 , F02D41/2441 , F02D41/2464 , F02D2250/16 , F02M26/48 , F02P5/1508 , Y02T10/46 , Y02T10/47
摘要： While an engine is an idling state and an EGR opening degree is increased stepwise from a specified opening degree, a variation in engine speed (a standard deviation in engine speed) is repeatedly computed. After that, a specified step amount is successively reduced from the EGR opening degree and the variation in engine speed is successively computed until the EGR opening degree becomes less than or equal to a specified value. Then, a maximum value of the EGR opening degrees where the variation in engine speed becomes minimum is learned as the full-close position.
摘要翻译： 当发动机是空转状态并且EGR开度从规定的开度逐步增加时，重复地计算发动机转速的变化（发动机转速的标准偏差）。 之后，从EGR开度连续地减小规定的步进量，连续计算发动机转速的变化，直到EGR开度小于或等于规定值。 然后，获知发动机转速变化最小的EGR开度的最大值作为全关位置。
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公开(公告)号：US08960169B2
公开(公告)日：2015-02-24
申请号：US13531182
申请日：2012-06-22
CPC分类号： F02M25/0793 , F02D9/02 , F02D41/0077 , F02D41/20 , F02D2041/2058 , F02D2200/1012 , F02D2250/16 , F02M26/23 , F02M26/48 , F02M26/54 , F02M26/70 , Y02T10/47
摘要： When a constant driving voltage is applied to a motor driving an EGR valve so that the EGR opening degree is varied, an angular speed of the EGR valve becomes minimal at a position where the driving torque of the EGR valve becomes maximal. In view of this, while an opening degree of the EGR valve is varied with a constant driving voltage applied to the motor, the EGR opening degree where the angular speed becomes minimal is learned as a full-close position.
摘要翻译： 当对驱动EGR阀的电动机施加恒定的驱动电压使得EGR开度变化时，在EGR阀的驱动转矩变为最大的位置，EGR阀的角速度变得最小。 鉴于此，当EGR阀的开度随着施加到电动机的恒定驱动电压而变化时，角速度变得最小的EGR开度被学习为完全关闭位置。
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公开(公告)号：US09470166B2
公开(公告)日：2016-10-18
申请号：US13481231
申请日：2012-05-25
CPC分类号： F02D41/123 , F02D17/04 , F02D41/0055 , F02D41/0072 , F02D41/042 , F02D2041/1431 , F02D2200/0402 , Y02T10/47
摘要： EGR gas quantity information, which indicates a quantity of the EGR gas flowing into a cylinder of an internal combustion engine, is obtained by an ECU. A combustion stop delay control operation, which delays execution of a combustion stop control operation, is executed by the ECU when the quantity of the EGR gas flowing into the cylinder is larger than a normal combustion determination threshold value. When the quantity of the EGR gas flowing into the cylinder becomes equal to or smaller than the normal combustion determination threshold value, the combustion stop control operation is enabled by the ECU.
摘要翻译： 通过ECU获得表示流入内燃机的气缸内的EGR气体的量的EGR气体量信息。 当流入气缸的EGR气体的量大于正常燃烧判定阈值时，ECU通过ECU执行延迟执行燃烧停止控制动作的燃烧停止延迟控制动作。 当流入气缸的EGR气体的量成为正常燃烧判定阈值以下时，通过ECU使能燃烧停止控制动作。
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公开(公告)号：US20120303250A1
公开(公告)日：2012-11-29
申请号：US13481231
申请日：2012-05-25
CPC分类号： F02D41/123 , F02D17/04 , F02D41/0055 , F02D41/0072 , F02D41/042 , F02D2041/1431 , F02D2200/0402 , Y02T10/47
摘要： EGR gas quantity information, which indicates a quantity of the EGR gas flowing into a cylinder of an internal combustion engine, is obtained by an ECU. A combustion stop delay control operation, which delays execution of a combustion stop control operation, is executed by the ECU when the quantity of the EGR gas flowing into the cylinder is larger than a normal combustion determination threshold value. When the quantity of the EGR gas flowing into the cylinder becomes equal to or smaller than the normal combustion determination threshold value, the combustion stop control operation is enabled by the ECU.
摘要翻译： 通过ECU获得表示流入内燃机的气缸内的EGR气体的量的EGR气体量信息。 当流入气缸的EGR气体的量大于正常燃烧判定阈值时，ECU通过ECU执行延迟执行燃烧停止控制动作的燃烧停止延迟控制动作。 当流入气缸的EGR气体的量成为正常燃烧判定阈值以下时，通过ECU使能燃烧停止控制动作。
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公开(公告)号：US20120318247A1
公开(公告)日：2012-12-20
申请号：US13489760
申请日：2012-06-06
申请人： Hiroki Nogami
发明人： Hiroki Nogami
IPC分类号： F02M25/07
CPC分类号： F02D41/2464 , F02D41/0077 , F02D2041/0067 , F02D2250/16 , Y02T10/47
摘要： A gas temperature sensor is provided in an EGR passage. When a specified learning executing condition is established, the EGR valve is compulsorily rotated from a reference position in a valve-close direction and then rotated in a valve-open direction over the reference position. While the EGR valve is rotated in such a manner as to pass a full-close position, an opening degree of the EGR valve at which the variation in gas temperature becomes minimum is learned as the full-close position of the EGR valve.
摘要翻译： 在EGR通路中设置有气体温度传感器。 当建立指定的学习执行条件时，EGR阀在关闭方向上从基准位置强制旋转，然后在基准位置上沿阀打开方向旋转。 当EGR阀以完全关闭位置的方式转动时，将EGR阀的气门温度变化最小的开度作为EGR阀的全关位置。
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