-
公开(公告)号：US07866306B2
公开(公告)日：2011-01-11
申请号：US11873601
申请日：2007-10-17
CPC分类号： F02D41/0055 , F02D41/0072 , F02D41/187 , F02D41/22 , F02D2041/0067 , F02D2041/0075 , F02D2200/0414 , F02M26/25 , F02M26/43 , F02M26/44 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/003 , Y02T10/47
摘要： A control apparatus of an EGR control valve has an EGR control valve has an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine from an exhaust gas passage to an intake air passage. A measurement unit measures a flow rate of EGR gas flowing in the exhaust gas recirculation passage, and a controller receives an input from the measurement unit and closes the EGR control valve if the EGR-gas flow rate is smaller than a predetermined threshold value when the EGR gas is flowing from the exhaust side to the intake side of the internal combustion engine.
摘要翻译： EGR控制阀的控制装置具有EGR控制阀，具有排气再循环通道，用于使内燃机的废气从排气通道向进气通道循环。 测量单元测量在废气再循环通道中流动的EGR气体的流量，并且如果EGR气体流量小于预定阈值，则控制器接收来自测量单元的输入并关闭EGR控制阀 EGR气体从排气侧流到内燃机的进气侧。
-
公开(公告)号：US20090223495A1
公开(公告)日：2009-09-10
申请号：US11873601
申请日：2007-10-17
CPC分类号： F02D41/0055 , F02D41/0072 , F02D41/187 , F02D41/22 , F02D2041/0067 , F02D2041/0075 , F02D2200/0414 , F02M26/25 , F02M26/43 , F02M26/44 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/003 , Y02T10/47
摘要： A conventional technique performs valve close control of an EGR valve after an EGR-gas back flow is detected. Therefore, the conventional technique has a subject that, if an EGR-gas flow direction changes from forward flow to back flow, a back flow condition will last not only for a response delay time of a detector but also for the judgment time by calculation processing and the actuation time of the EGR control valve. There is provided a control apparatus of an EGR control valve, comprising: an EGR control valve which is provided in an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine from an exhaust gas passage to an intake air passage; measurement means for measuring a flow rate of EGR gas flowing in the exhaust gas recirculation passage; and control means for receiving an input from the measurement means and closing the EGR control valve if the EGR-gas flow rate is smaller than a predetermined threshold value when the EGR gas is flowing from the exhaust side to the intake side of the internal combustion engine.
摘要翻译： 在检测到EGR气体回流之后，常规技术对EGR阀进行阀关闭控制。 因此，现有技术的一个主题是，如果EGR气体流动方向从正向流向后向流动，逆流条件不仅对于检测器的响应延迟时间而且对于通过计算处理的判断时间也将持续 以及EGR控制阀的启动时间。 提供了一种EGR控制阀的控制装置，包括：EGR控制阀，其设置在废气再循环通道中，以使内燃机的废气从排气通道循环到进气通道; 用于测量在废气再循环通道中流动的EGR气体的流量的测量装置; 以及控制装置，用于在EGR气体从排气侧流向内燃机的进气侧时，如果EGR气体流量小于预定阈值，则从测量装置接收输入并关闭EGR控制阀 。
-
公开(公告)号：US07715975B2
公开(公告)日：2010-05-11
申请号：US12277888
申请日：2008-11-25
CPC分类号： F02D41/0002 , F02D41/0072 , F02D41/18 , F02D41/222 , F02D41/3035 , F02D41/3076 , F02D2041/0075 , F02D2200/0406 , F02D2400/08 , F02M26/05 , F02M26/06 , F02M26/28 , F02M26/47 , Y02T10/42 , Y02T10/47
摘要： An engine that re-circulates its exhaust gas suffers decreased accuracy in estimating an EGR rate real-time especially while the operating state of the engine is in a transitional state, which often results in torque fluctuations and deteriorated exhaust gas.A sensor for directly detecting an EGR flow rate is disposed in an EGR path. An EGR rate and in-cylinder oxygen concentration are calculated from the output value of that sensor. In addition, when this EGR rate calculation method is used, the calculation is properly switched between a steady operation state characterized by a low load and small rotational fluctuations and a transitional operating state including the acceleration and deceleration. This makes it possible to correctly estimate the EGR rate and the in-cylinder oxygen concentration under a wide range of engine operation conditions, and thereby to avoid the fluctuation of torque and the deterioration of exhaust gas.
摘要翻译： 特别是在发动机的运转状态处于过渡状态时，再次循环排气的发动机在实际EGR估计中的精度降低，这通常导致扭矩波动和废气劣化。 用于直接检测EGR流量的传感器设置在EGR通路中。 从该传感器的输出值计算EGR率和缸内氧浓度。 此外，当使用该EGR率计算方法时，可以在以低负载和小的旋转波动为特征的稳定运行状态和包括加速和减速的过渡运行状态之间适当地切换运算。 这使得可以在较宽的发动机运转条件下正确地估计EGR率和缸内氧气浓度，从而避免扭矩的波动和废气的劣化。
-
公开(公告)号：US07681560B2
公开(公告)日：2010-03-23
申请号：US11943047
申请日：2007-11-20
申请人： Shiro Yamaoka , Eiichiro Ohata , Jun Kubo , Noboru Tokuyasu , Toshiki Otsuki , Hiroaki Hoshika
发明人： Shiro Yamaoka , Eiichiro Ohata , Jun Kubo , Noboru Tokuyasu , Toshiki Otsuki , Hiroaki Hoshika
CPC分类号： F02D41/005 , F02B29/0406 , F02B2275/14 , F02D2041/0075 , F02M26/05 , F02M26/06 , F02M26/28 , F02M26/35 , F02M26/47 , F02M26/49 , Y02T10/47
摘要： The present invention prevents an EGR sensor installed in an engine's EGR path from being soiled by soiling substances in exhaust. A catalyst is positioned upstream of the EGR sensor to purify the soiling substances in EGR gas. The status of the EGR sensor is properly controlled in accordance with the conditions of the catalyst. This ensures the EGR sensor is less likely to be affected by the soiling substances in the exhaust under any circumstances of the EGR path and allows the EGR sensor to avoid a decrease in the accuracy of EGR gas detection. An alternative configuration may be employed such that the EGR gas recirculates from the downstream side of a catalyst installed in a main exhaust path.
摘要翻译： 本发明防止了安装在发动机EGR通路中的EGR传感器被污染排气中的物质所污染。 催化剂位于EGR传感器的上游，以净化EGR气体中的污物。 根据催化剂的条件适当地控制EGR传感器的状态。 这确保EGR传感器在EGR路径的任何情况下不太可能受到排气中的污染物质的影响，并且允许EGR传感器避免EGR气体检测的精度的降低。 可以采用替代配置，使得EGR气体从安装在主排气路径中的催化剂的下游侧再循环。
-
公开(公告)号：US20110166768A1
公开(公告)日：2011-07-07
申请号：US12920558
申请日：2009-07-24
CPC分类号： F02D41/0245 , F01N3/021 , F01N3/10 , F01N2560/07 , F02D41/027 , F02D41/1445 , F02D41/1446 , F02D41/1447 , F02D41/187 , F02D41/222 , F02D2400/08 , Y02T10/26
摘要： A control device for an engine, capable of accurately estimating the quantity of exhaust heat from the engine and performing engine control which improves the exhaust quality and fuel consumption of the engine in various operating conditions thereof, by using the accurate extimated value of the quantity of exhaust heat. A control device for an engine is provided with an exhaust flow rate sensor for directly sensing the flow rate of exhaust gas discharged from the engine, an exhaust temperature estimating device for sensing or estimating the temperature of the exhaust gas discharged from the engine, and an exhaust heat quantity estimating device for estimating, based on an output of the exhaust flow rate sensor and an output of the exhaust temperature estimating device, the quantity of heat of the exhaust gas discharged from the engine.
摘要翻译： 一种用于发动机的控制装置，其能够精确地估计来自发动机的排气量并执行发动机控制，其通过使用所述发动机的数量的准确的终止值来提高发动机的各种运行条件下的排气质量和燃料消耗 排气热。 一种用于发动机的控制装置设置有用于直接感测从发动机排出的废气的流量的排气流量传感器，用于感测或估计从发动机排出的废气的温度的排气温度估计装置，以及 排气热量估计装置，用于基于排气流量传感器的输出和排气温度推定装置的输出，估计从发动机排出的废气的热量。
-
公开(公告)号：US08290685B2
公开(公告)日：2012-10-16
申请号：US12920558
申请日：2009-07-24
CPC分类号： F02D41/0245 , F01N3/021 , F01N3/10 , F01N2560/07 , F02D41/027 , F02D41/1445 , F02D41/1446 , F02D41/1447 , F02D41/187 , F02D41/222 , F02D2400/08 , Y02T10/26
摘要： A control device for an engine, capable of accurately estimating the quantity of exhaust heat from the engine and performing engine control which improves the exhaust quality and fuel consumption of the engine in various operating conditions thereof, by using the accurate estimated value of the quantity of exhaust heat. A control device for an engine is provided with an exhaust flow rate sensor for directly sensing the flow rate of exhaust gas discharged from the engine, an exhaust temperature estimating device for sensing or estimating the temperature of the exhaust gas discharged from the engine, and an exhaust heat quantity estimating device for estimating, based on an output of the exhaust flow rate sensor and an output of the exhaust temperature estimating device, the quantity of heat of the exhaust gas discharged from the engine.
摘要翻译： 一种用于发动机的控制装置，其能够精确地估计来自发动机的排气量并执行发动机控制，其通过使用发动机的各种操作条件的精确估计值来提高发动机的各种运行条件下的排气质量和燃料消耗 排气热。 一种用于发动机的控制装置设置有用于直接感测从发动机排出的废气的流量的排气流量传感器，用于感测或估计从发动机排出的废气的温度的排气温度估计装置，以及 排气热量估计装置，用于基于排气流量传感器的输出和排气温度推定装置的输出，估计从发动机排出的废气的热量。
-
公开(公告)号：US07954373B2
公开(公告)日：2011-06-07
申请号：US12432323
申请日：2009-04-29
IPC分类号： G01F1/68
CPC分类号： G01F1/684 , G01F1/6842 , G01F1/698 , G01F1/699
摘要： There is provided a thermal type flow meter capable of accurately detecting a flow rate even when a fluid temperature varies rapidly or when the fluid temperature is high. A probe includes: a first main heating resistor; a second main heating resistor set at a temperature different from that of the first main heating resistor; and a sub-heating resistor for heating lead wires of the two main heating resistors. A CPU of a sensor control circuit finds a fluid temperature by using the two main heating resistors, and finds a fluid flow rate by using at least one of the two main heating resistors.
摘要翻译： 提供了一种即使当流体温度快速变化或当流体温度高时能够精确地检测流量的热式流量计。 探头包括：第一主发热电阻器; 设置在与第一主发热电阻器不同的温度的第二主发热电阻器; 以及用于加热两个主要加热电阻器的引线的次加热电阻器。 传感器控制电路的CPU通过使用两个主要加热电阻器来找到流体温度，并通过使用两个主要加热电阻器中的至少一个来获得流体流量。
-
公开(公告)号：US20090241654A1
公开(公告)日：2009-10-01
申请号：US12389246
申请日：2009-02-19
摘要： A high-accuracy EGR sensor is provided. A recirculation system is provided which controls the flow rate of EGR by use of the sensor. A thermal gas flowmeter includes a heating resistor disposed in a flow of gas to be measured for detecting the flow rate of the gas, and an external circuit electrically connected to the heating resistor for outputting a signal according to the flow rate of the gas to be measured using the heating resistor. The heating resistor is controlled to be heated at a temperature equal to or higher than a vapor film forming temperature for forming a vapor film.
摘要翻译： 提供了一种高精度的EGR传感器。 提供了一种利用传感器控制EGR流量的再循环系统。 热气流量计包括设置在待测气体流中以检测气体流量的加热电阻器，以及电连接到加热电阻器的外部电路，用于根据气体的流量输出信号 使用加热电阻测量。 加热电阻器被控制在等于或高于用于形成蒸气膜的蒸气成膜温度的温度下加热。
-
公开(公告)号：US20090299610A1
公开(公告)日：2009-12-03
申请号：US12470602
申请日：2009-05-22
申请人： Kengo Kumano , Yoshihiro Sukegawa , Shiro Yamaoka
发明人： Kengo Kumano , Yoshihiro Sukegawa , Shiro Yamaoka
CPC分类号： F02D13/0203 , F01L9/04 , F01L2800/00 , F02D37/02 , F02D41/0002 , F02D41/1498 , F02D41/3094 , F02D41/401 , F02D2041/001 , Y02T10/18 , Y02T10/42 , Y02T10/44
摘要： In an in-cylinder injection type spark ignition internal combustion engine in which the intake air amount is controlled by use of an intake valve or an exhaust valve, which is provided with mainly a variable valve mechanism, instable combustion during a low-load operation is avoided without an increase in pumping loss (without a decrease in the thermal efficiency). In the in-cylinder injection type spark ignition internal combustion engine, during low-load operation, on the basis of the cooling water temperature of the engine the opening and closing timing of the intake valve is controlled in a retard angle manner and the opening and closing timing of the exhaust valve is controlled in an advance angle manner. Furthermore, the fuel injection timing is controlled in a retard angle manner on the basis of the retard angle amount of the intake valve opening and closing timing.
摘要翻译： 在其中通过使用主要具有可变阀机构的进气门或排气门来控制进气量的缸内喷射式火花点火内燃机中，在低负荷运转时不稳定燃烧， 在不增加泵送损失的情况下避免（不降低热效率）。 在缸内喷射式火花点火式内燃机中，在低负荷运转时，基于发动机的冷却水温度，以延迟角方式控制进气门的开闭正时， 以提前角的方式控制排气门的关闭正时。 此外，基于进气门开闭正时的延迟角度量，以延迟角方式控制燃料喷射正时。
-
公开(公告)号：US08224555B2
公开(公告)日：2012-07-17
申请号：US12470602
申请日：2009-05-22
申请人： Kengo Kumano , Yoshihiro Sukegawa , Shiro Yamaoka
发明人： Kengo Kumano , Yoshihiro Sukegawa , Shiro Yamaoka
IPC分类号： B60T7/12
CPC分类号： F02D13/0203 , F01L9/04 , F01L2800/00 , F02D37/02 , F02D41/0002 , F02D41/1498 , F02D41/3094 , F02D41/401 , F02D2041/001 , Y02T10/18 , Y02T10/42 , Y02T10/44
摘要： In an in-cylinder injection type spark ignition internal combustion engine in which the intake air amount is controlled by use of an intake valve or an exhaust valve, which is provided with mainly a variable valve mechanism, instable combustion during a low-load operation is avoided without an increase in pumping loss (without a decrease in the thermal efficiency). In the in-cylinder injection type spark ignition internal combustion engine, during low-load operation, on the basis of the cooling water temperature of the engine the opening and closing timing of the intake valve is controlled in a retard angle manner and the opening and closing timing of the exhaust valve is controlled in an advance angle manner. Furthermore, the fuel injection timing is controlled in a retard angle manner on the basis of the retard angle amount of the intake valve opening and closing timing.
摘要翻译： 在其中通过使用主要具有可变阀机构的进气门或排气门来控制进气量的缸内喷射式火花点火内燃机中，在低负荷运转时不稳定燃烧， 在不增加泵送损失的情况下避免（不降低热效率）。 在缸内喷射式火花点火式内燃机中，在低负荷运转时，基于发动机的冷却水温度，以延迟角方式控制进气门的开闭正时， 以提前角的方式控制排气门的关闭正时。 此外，基于进气门开闭正时的延迟角度量，以延迟角方式控制燃料喷射正时。
-
-
-
-
-
-
-
-
-
搜索结果
63 条记录 (耗时 0.026 秒)
