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公开(公告)号：US08958973B2
公开(公告)日：2015-02-17
申请号：US13163912
申请日：2011-06-20
申请人： Hiroshi Katsurahara , Osamu Fukasawa , Tomoaki Nakano , Masahiro Yokoi , Kota Noguchi , Atsushi Koike
发明人： Hiroshi Katsurahara , Osamu Fukasawa , Tomoaki Nakano , Masahiro Yokoi , Kota Noguchi , Atsushi Koike
CPC分类号： F02D41/402 , F02D41/1454 , Y02T10/44
摘要： A fuel injection control device for an engine executes a split injection constructed by a fixed injection and a variable injection. A required injection amount of the fixed injection is set in a low range. A required injection amount of the variable injection is set in a high range. An injection amount in the high range is larger than that of the low range. The required injection amount of the variable injection is changed within the high range while the required injection amount of the fixed injection is fixed when a load of the engine is varied while the split injection is performed. An injection control characteristic is corrected based on an actual air-fuel ratio detected before the load is varied and an actual air-fuel ratio detected after the load is varied.
摘要翻译： 用于发动机的燃料喷射控制装置执行由固定喷射和可变喷射构成的分流喷射。 将固定喷射的所需喷射量设定在低范围内。 将可变注入的所需注入量设定在高范围内。 高范围内的喷射量大于低范围的喷射量。 可变喷射的所需喷射量在高范围内变化，同时当执行分流喷射时发动机的负载变化时固定喷射的所需喷射量是固定的。 基于在负载变化之前检测到的实际空燃比和负载变化后检测到的实际空燃比来校正喷射控制特性。
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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：US08286472B2
公开(公告)日：2012-10-16
申请号：US12786952
申请日：2010-05-25
申请人： Hiroshi Katsurahara
发明人： Hiroshi Katsurahara
IPC分类号： G01M15/04
CPC分类号： F01L1/344 , F01L13/0015 , F01L2001/0537 , F01L2800/05 , F01L2800/11 , F01L2810/02 , F01M2011/148 , F02D13/02 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/22 , F02D2200/0611 , F02D2250/11 , Y02T10/18 , Y02T10/36 , Y02T10/40
摘要： A fuel diluting quantity is estimated based on an alcohol concentration of the fuel. A response-deterioration determination value is corrected according to the estimated fuel diluting quantity. The response-deterioration determination value can be properly established even though the responsiveness of the variable valve timing controller is varied due to a variation in viscosity of the lubricant. Thereby, even when the responsiveness of the variable valve timing controller is varied (deteriorated) due to an increase in the fuel diluting quantity, it can be avoided that the computer determines that the variable valve timing controller has a defect.
摘要翻译： 基于燃料的酒精浓度来估计燃料稀释量。 根据估计的燃料稀释量来校正响应劣化判定值。 即使可变气门正时控制器的响应性由于润滑剂的粘度变化而变化，也可以适当地建立响应劣化判定值。 因此，即使由于燃料稀释量的增加而导致可变气门正时控制器的响应性变差（恶化），也可以避免计算机判定可变气门正时控制器有缺陷。
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公开(公告)号：US09726093B2
公开(公告)日：2017-08-08
申请号：US13480641
申请日：2012-05-25
CPC分类号： F02D41/0072 , F02D2021/083 , F02D2041/1431 , F02D2200/0402 , F02M26/06 , F02M26/35 , Y02T10/47
摘要： In an EGR system, a quantity of exhaust gas passing through an EGR valve is computed by an EGR valve model simulating a behavior of the recirculated exhaust gas passing through the EGR valve. An exhaust gas quantity flowing into a cylinder is computed by an EGR-gas-delay model simulating a behavior of the exhaust gas passing through the EGR valve and the throttle valve and then flows into a cylinder. The EGR-gas-delay model includes a confluent-delay model simulating a behavior of EGR gas passing thorough the EGR valve and flowing into the intake passage upstream of the throttle valve; an intake-pipe-delay model simulating a behavior of EGR gas flowing in the intake passage and passing through the throttle valve; and an intake-manifold-delay model simulating a behavior of EGR gas which passes through the throttle valve and then flows into the intake passage downstream of the throttle valve.
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公开(公告)号：US08660772B2
公开(公告)日：2014-02-25
申请号：US12764284
申请日：2010-04-21
CPC分类号： F02D41/0025 , F02D19/0602 , F02D19/0634 , F02D19/0655 , Y02T10/36
摘要： A microcomputer of an alcohol concentration sensor reads a first measurement value corresponding to a first frequency and reads a second measurement value corresponding to a second frequency. The microcomputer calculates a difference between the first and second measurement values. The microcomputer performs stuck failure abnormality determination when a state where the difference between the measurement values is equal to or smaller than a predetermined value continues. The microcomputer outputs a PWM signal of a specific frequency, which is different from a frequency in a case of a normality, to an engine ECU. Thus, a failure of the alcohol concentration sensor can be surely determined.
摘要翻译： 酒精浓度传感器的微型计算机读取与第一频率对应的第一测量值，并读取与第二频率对应的第二测量值。 微计算机计算第一和第二测量值之间的差。 当测量值之间的差等于或小于预定值的状态持续时，微计算机执行卡纸故障异常判定。 微型计算机将与正常情况下的频率不同的特定频率的PWM信号输出到发动机ECU。 因此，可以可靠地确定酒精浓度传感器的故障。
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公开(公告)号：US20100263647A1
公开(公告)日：2010-10-21
申请号：US12764284
申请日：2010-04-21
CPC分类号： F02D41/0025 , F02D19/0602 , F02D19/0634 , F02D19/0655 , Y02T10/36
摘要： A microcomputer of an alcohol concentration sensor reads a first measurement value corresponding to a first frequency and reads a second measurement value corresponding to a second frequency. The microcomputer calculates a difference between the first and second measurement values. The microcomputer performs stuck failure abnormality determination when a state where the difference between the measurement values is equal to or smaller than a predetermined value continues. The microcomputer outputs a PWM signal of a specific frequency, which is different from a frequency in a case of a normality, to an engine ECU. Thus, a failure of the alcohol concentration sensor can be surely determined.
摘要翻译： 酒精浓度传感器的微型计算机读取与第一频率对应的第一测量值，并读取与第二频率对应的第二测量值。 微计算机计算第一和第二测量值之间的差。 当测量值之间的差等于或小于预定值的状态持续时，微计算机执行卡纸故障异常判定。 微型计算机将与正常情况下的频率不同的特定频率的PWM信号输出到发动机ECU。 因此，可以可靠地确定酒精浓度传感器的故障。
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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：US08942909B2
公开(公告)日：2015-01-27
申请号：US13481192
申请日：2012-05-25
CPC分类号： F02D41/0005 , F02D41/0072 , F02D41/123 , F02D2021/083 , F02M26/06 , F02M26/35 , F02M26/64 , Y02T10/42 , Y02T10/47
摘要： An intake air quantity information determining arrangement senses or computes one of an intake air quantity and a torque of an internal combustion engine as intake air quantity information. A misfire-avoidance control arrangement executes a misfire-avoidance control operation, which avoids misfire by controlling a throttle opening degree of a throttle valve such that a value of the intake air quantity information does not decrease below a normal combustion threshold value.
摘要翻译： 进气量信息确定装置作为进气量信息感测或计算内燃机的进气量和扭矩中的一个。 失火回避控制装置执行失火回避控制操作，其通过控制节气门的节气门开度来避免失火，使得进气量信息的值不降低到正常燃烧阈值以下。
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公开(公告)号：US08892334B2
公开(公告)日：2014-11-18
申请号：US13481192
申请日：2012-05-25
摘要： An intake air quantity information determining arrangement senses or computes one of an intake air quantity and a torque of an internal combustion engine as intake air quantity information. A misfire-avoidance control arrangement executes a misfire-avoidance control operation, which avoids misfire by controlling a throttle opening degree of a throttle valve such that a value of the intake air quantity information does not decrease below a normal combustion threshold value.
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公开(公告)号：US08881707B2
公开(公告)日：2014-11-11
申请号：US13252422
申请日：2011-10-04
申请人： Hiroshi Katsurahara
发明人： Hiroshi Katsurahara
CPC分类号： F02D41/222 , F01M1/24 , F02D41/042 , F02D41/221 , F02D41/3809 , F02D2041/223 , F02D2041/224 , F02D2041/226 , F02D2041/227 , F02D2200/0602 , F02M65/003 , Y02T10/40
摘要： A fuel pressure varies according to whether a fuel pressure sensor and a high-pressure pump have a malfunction or not. In view of this, a first threshold Perr1 is defined for determining whether the fuel pressure sensor has a malfunction and a second threshold Perr2 is defined for determining whether the high-pressure pump has a malfunction. The second threshold Perr2 is greater than the first threshold Perr1. By comparing a detection value of the fuel pressure sensor with the first and the second threshold, a malfunction in the fuel pressure sensor and a malfunction in the high-pressure pump are distinguished from each other. A first fail-safe control or a second fail-safe control is executed according to a portion having a malfunction.
摘要翻译： 燃料压力根据燃料压力传感器和高压泵是否发生故障而变化。 鉴于此，定义第一阈值Perr1用于确定燃料压力传感器是否具有故障，并且第二阈值Perr2被定义用于确定高压泵是否具有故障。 第二阈值Perr2大于第一阈值Perr1。 通过将燃料压力传感器的检测值与第一和第二阈值进行比较，燃料压力传感器的故障和高压泵的故障彼此区分。 根据具有故障的部分执行第一故障保护控制或第二故障保护控制。
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