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公开(公告)号：US08701628B2
公开(公告)日：2014-04-22
申请号：US13004844
申请日：2011-01-11
CPC分类号： F02D41/0087 , F02B75/02 , F02B2075/027 , F02D13/06 , F02D17/02 , F02D37/02 , F02D41/1401 , F02D41/26 , F02D41/266 , F02D41/30 , F02D2200/0614 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/045 , F02P5/1512 , Y02T10/46
摘要： A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. In some aspects, methods and arrangements are described for operating an engine in a throttled skip fire mode. In other aspects, methods and arrangements are described for controlling the operational state of a variable displacement engine.
摘要翻译： 描述了用于改善内燃机的燃料效率的各种方法和装置。 在一些方面，描述了用于在节流跳火模式下操作发动机的方法和布置。 在其他方面，描述了用于控制可变排量发动机的操作状态的方法和装置。
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公开(公告)号：US08336521B2
公开(公告)日：2012-12-25
申请号：US12501345
申请日：2009-07-10
CPC分类号： F02D41/0087 , F02D37/02 , F02D41/1401 , F02D41/266 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/1512 , Y02T10/46
摘要： A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. Feedback control is used to dynamically determine the working cycles to be skipped to provide a desired engine output. In some embodiments a substantially optimized amount of air and fuel is delivered to the working chambers during active working cycles so that the fired working chambers can operate at efficiencies close to their optimal efficiency. In some embodiments, the appropriate firing pattern is determined at least in part using predictive adaptive control. By way of example, sigma delta controllers work well for this purpose. In some implementations, the feedback includes feedback indicative of at least one of actual and requested working cycle firings. In some embodiments, the appropriate firings are determined on a firing opportunity by firing opportunity basis. Additionally, in some embodiments, an indicia of the current rotational speed of the engine is used as a clock input for a controller used to selectively cause the skipped working cycles to be skipped.
摘要翻译： 描述了用于改善内燃机的燃料效率的各种方法和装置。 通常，发动机被控制为以跳火可变排量模式操作。 反馈控制用于动态地确定要跳过的工作循环以提供期望的发动机输出。 在一些实施例中，在主动工作循环期间将基本上优化的空气和燃料量输送到工作室，使得燃烧的工作室可以以接近其最佳效率的效率进行操作。 在一些实施例中，至少部分地使用预测自适应控制来确定适当的点火模式。 作为例子，西格玛三角洲控制器为此工作良好。 在一些实施方案中，反馈包括指示实际和所请求的工作循环点火中的至少一个的反馈。 在一些实施例中，通过击发机会的基础，通过击发机会确定适当的发射。 另外，在一些实施例中，将引擎的当前转速的标记用作用于选择性地使跳过的工作循环被跳过的控制器的时钟输入。
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公开(公告)号：US20110030657A1
公开(公告)日：2011-02-10
申请号：US12833916
申请日：2010-07-09
申请人： Adya S. TRIPATHI , Chester J. SILVESTRI , Christopher W. Chandler , Chris Hand , Joshua P. Switkes , Mark Wilcutts
发明人： Adya S. TRIPATHI , Chester J. SILVESTRI , Christopher W. Chandler , Chris Hand , Joshua P. Switkes , Mark Wilcutts
IPC分类号： F02D17/02
CPC分类号： F02D17/02 , F02D41/0087 , F02D41/047
摘要： A variety of methods and arrangements for controlling the operation of an internal combustion engine in a skip fire variable displacement mode are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. In the variable displacement mode, selected combustion events are skipped so that other working cycles can operate at better thermodynamic efficiency. More specifically, selected “skipped” working cycles are not fired while other “active” working cycles are fired. Typically, fuel is not delivered to the working chambers during skipped working cycles. In one aspect of the invention, a firing pattern is determined that is not fixed but the active working cycles are selected to favor the firing of working chambers that have recently been fired at least in part to reduce wall wetting losses. In another aspect of the invention, when an active working cycle follows a skipped working cycle in the same working chamber, the quanta of fuel injected for delivery to the working chamber is increased relative to the quanta of fuel that would be delivered to the working chamber when the active working cycle follows another active working cycle in the same working chamber in order to compensate for wall wetting losses that occur during skipped working cycles.
摘要翻译： 描述了用于在跳火可变位移模式中控制内燃机的操作的各种方法和装置。 通常，发动机被控制为以跳火可变排量模式操作。 在可变位移模式中，跳过所选择的燃烧事件，使得其他工作循环可以以更好的热力学效率运行。 更具体地，在其他“活动”工作循环被触发时，选定的“跳过”工作循环不被触发。 通常，在跳过的工作循环期间，燃料不会传送到工作室。 在本发明的一个方面，确定了不固定的点火模式，但选择了主动工作循环以有利于最近已经至少部分地被烧制的工作室的点火以减少壁湿润损失。 在本发明的另一方面，当主动工作循环跟随在相同工作室中跳过的工作循环时，喷射用于输送到工作室的燃料量相对于将被输送到工作室的燃料量增加 当主动工作循环在相同的工作室中跟随另一个主动工作循环，以补偿在跳过的工作循环期间发生的壁湿润损失。
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公开(公告)号：US07577511B1
公开(公告)日：2009-08-18
申请号：US12405450
申请日：2009-03-17
CPC分类号： F02D41/0087 , F02D41/047 , F02D41/068 , F02D41/123 , F02D41/1402 , F02D41/1454 , F02D41/1482 , F02D41/266 , F02D41/3058 , F02D41/365 , F02D2041/141 , F02D2250/18 , F02P9/002 , Y02T10/142
摘要： A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. Generally, selected combustion events are skipped during operation of the internal combustion engine so that other working cycles can operate at a better thermodynamic efficiency. In one aspect of the invention, an engine is controlled to operate in a variable displacement mode. In the variable displacement mode, fuel is not delivered to the working chambers (e.g. cylinders) during selected “skipped” working cycles. During active (“non-skipped”) working cycles, a maximum (e.g., unthrottled) amount of air and an optimized amount of fuel is delivered to the relevant working chambers so that the fired working chambers can operate at efficiencies closer to their optimal efficiency. A controller is used to dynamically determine the chamber firings required to provide the engine torque based on the engine's current operational state and conditions. The chamber firings may be sequenced in real time or in near real time in a manner that helps reduce undesirable vibrations of the engine.
摘要翻译： 描述了用于改善内燃机的燃料效率的各种方法和装置。 通常，在内燃机操作期间跳过选定的燃烧事件，使得其他工作循环可以以更好的热力学效率工作。 在本发明的一个方面，发动机被控制为以可变排量模式操作。 在可变排量模式中，在选择的“跳过”工作循环期间，燃料不被输送到工作室（例如气缸）。 在主动（“非跳过”）工作循环期间，最大限度地（例如，无节流）的空气量和优化的燃料量被输送到相关的工作室，使得燃烧的工作室可以以更接近其最佳效率的效率 。 控制器用于动态地确定基于发动机的当前操作状态和条件来提供发动机扭矩所需的腔室点火。 室内燃烧可以以有助于减少发动机的不期望的振动的方式实时或接近实时地排序。
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5.发明授权Method and apparatus for improving the fuel economy of a variable displacement engine 有权用于改善可变排量发动机的燃料经济性的方法和装置公开(公告)号：US08738270B2
公开(公告)日：2014-05-27
申请号：US13233599
申请日：2011-09-15
IPC分类号： G06F19/00
CPC分类号： F02D41/266 , F02D28/00 , F02D41/0087 , F02D2400/11
摘要： A secondary controller for controlling the performance of a moving automobile is described. The secondary controller can be configured to communicate with one or more vehicle controllers, such as the engine control unit, while the automobile is being driven. The secondary controller can send control commands, such as self-test or diagnostic commands to the vehicle controller to effect the operation of the vehicle's power train. The secondary controller can receive power train related data from the engine control unit and based upon the received power train data determine when to send the control commands. In one embodiment, the secondary controller communicates with the vehicle controller via the vehicle's diagnostic port, such as an OBD-II port. In another embodiment, the secondary controller can be configured to control a variable displacement engine in a vehicle to improve the fuel efficiency of the vehicle while it is driven.
摘要翻译： 描述了用于控制移动汽车的性能的二次控制器。 二次控制器可以被配置为在汽车被驱动时与一个或多个车辆控制器（例如发动机控制单元）通信。 二级控制器可以向车辆控制器发送诸如自检或诊断命令的控制命令，以实现车辆动力传动系的操作。 次级控制器可以从发动机控制单元接收动力传动系相关数据，并且基于所接收的动力传动系数据确定何时发送控制命令。 在一个实施例中，次级控制器经由车辆诊断端口（例如OBD-II端口）与车辆控制器通信。 在另一个实施例中，二级控制器可被配置成控制车辆中的可变排量发动机，以在车辆被驱动时提高车辆的燃料效率。
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6.发明申请METHOD AND APPARATUS FOR IMPROVING THE FUEL ECONOMY OF A VARIABLE DISPLACEMENT ENGINE 有权改善可变位移发动机燃油经济性的方法与装置公开(公告)号：US20130073169A1
公开(公告)日：2013-03-21
申请号：US13233599
申请日：2011-09-15
IPC分类号： F02D28/00
CPC分类号： F02D41/266 , F02D28/00 , F02D41/0087 , F02D2400/11
摘要： A secondary controller for controlling the performance of a moving automobile is described. The secondary controller can be configured to communicate with one or more vehicle controllers, such as the engine control unit, while the automobile is being driven. The secondary controller can send control commands, such as self-test or diagnostic commands to the vehicle controller to effect the operation of the vehicle's power train. The secondary controller can receive power train related data from the engine control unit and based upon the received power train data determine when to send the control commands. In one embodiment, the secondary controller communicates with the vehicle controller via the vehicle's diagnostic port, such as an OBD-II port. In another embodiment, the secondary controller can be configured to control a variable displacement engine in a vehicle to improve the fuel efficiency of the vehicle while it is driven.
摘要翻译： 描述了用于控制移动汽车的性能的二次控制器。 二次控制器可以被配置为在汽车被驱动时与一个或多个车辆控制器（例如发动机控制单元）通信。 二级控制器可以向车辆控制器发送诸如自检或诊断命令的控制命令，以实现车辆动力传动系的操作。 次级控制器可以从发动机控制单元接收动力传动系相关数据，并且基于所接收的动力传动系数据确定何时发送控制命令。 在一个实施例中，次级控制器经由车辆诊断端口（例如OBD-II端口）与车辆控制器通信。 在另一个实施例中，二级控制器可被配置成控制车辆中的可变排量发动机，以在车辆被驱动时提高车辆的燃料效率。
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公开(公告)号：US20110208405A1
公开(公告)日：2011-08-25
申请号：US13101042
申请日：2011-05-04
CPC分类号： F02D17/02 , F02D37/02 , F02D41/0087 , F02D41/1401 , F02D41/1402 , F02D41/266 , F02D2041/2027 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/1512 , Y02T10/142 , Y02T10/46
摘要： A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. In various embodiments, the appropriate firings are determined dynamically during operation of the engine on a firing opportunity by firing opportunity basis and/or without the use of predefined firing patterns.
摘要翻译： 描述了用于改善内燃机的燃料效率的各种方法和装置。 通常，发动机被控制为以跳火可变排量模式操作。 在各种实施例中，通过击发机会基础和/或不使用预定义的点火模式，在发射机会的操作期间动态地确定适当的发射。
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8.发明申请公开(公告)号：US20110048372A1
公开(公告)日：2011-03-03
申请号：US12833869
申请日：2010-07-09
CPC分类号： F02D41/1401 , F02D37/02 , F02D41/0087 , F02D41/021 , F02D41/266 , F02D2041/0012 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02D2400/11 , F02P5/1512 , Y02T10/46
摘要： The present invention relates to a diesel engine control system and methods for substantially operating a diesel engine at stoichiometric fuel to air ratios. The system may include a fuel processor which receives instructions for a desired engine output and current operating conditions. The fuel processor may also generate fueling instructions for the cylinders, including: substantially regulating fuel delivery into to a first group of cylinders at or near stoichiometric fuel levels, and substantially disabling fuel injection into to a second grouping of cylinders. The number of cylinders being fueled, and therefore undergoing a combustion event corresponds to the desired engine output. This may be calculated by dividing the desired output by the power provided by one cylinder operating at substantially stoichiometric fuel levels. The number of cylinders receiving fuel may be varied over a succession of engine revolutions such that the actual average engine power output conforms to the desired output.
摘要翻译： 本发明涉及柴油机控制系统和用于基本上以化学计量的燃料与空气比操作柴油发动机的方法。 该系统可以包括燃料处理器，其接收期望的发动机输出和当前操作条件的指令。 燃料处理器还可以产生用于气缸的加油指令，包括：基本上调节燃料输送到处于或接近化学计量燃料水平的第一组气缸，并基本上禁用燃料喷射到第二组气缸中。 正在燃料并因此经历燃烧事件的气缸的数量对应于期望的发动机输出。 这可以通过将期望的输出除以由基本上化学计量的燃料水平操作的一个气缸提供的功率来计算。 接收燃料的气缸的数量可以在一系列发动机转数上变化，使得实际的平均发动机功率输出符合期望的输出。
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公开(公告)号：US20100100299A1
公开(公告)日：2010-04-22
申请号：US12501392
申请日：2009-07-10
IPC分类号： F02D43/00
CPC分类号： F02D41/1401 , F02D37/02 , F02D41/0087 , F02D41/266 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/1512 , Y02T10/46
摘要： The present invention relates to system and methods for improving efficiency of an internal combustion engine. This system may include a fuel processor. The system receives instructions for a desired engine output and operating conditions. The system may then determine an operational state corresponding to the desired output. The operational state includes designating the cylinders into one of three categories: working, deactivated and passive. The number of working cylinders is calculated by dividing the desired output by the power provided by one cylinder operating at substantially optimal efficiency. Then the system substantially disables fuel flow to and air flow to the deactivated cylinders, substantially disables fuel flow to and firing of the passive cylinders, and substantially regulates fuel flow to, air flow to and firing of the working cylinders. Firing of the working cylinders is synchronized with engine speed to reduce unwanted engine vibrations. The number of working, passive and deactivated cylinders may be continually altered in response to changes in desired output or operating conditions.
摘要翻译： 本发明涉及提高内燃机效率的系统和方法。 该系统可以包括燃料处理器。 系统接收到所需发动机输出和操作条件的指令。 系统然后可以确定对应于期望输出的操作状态。 操作状态包括将气瓶指定为三种类型之一：工作，停用和被动。 通过将期望的输出除以由基本上最佳效率操作的一个气缸提供的功率来计算工作气缸的数量。 然后，该系统基本上禁止燃料流动并且空气流向失活的气缸，基本上禁止燃料流向无源气缸的燃烧和点燃，并且基本上调节燃料流向工作气缸的空气流动和燃烧。 工作气缸的点火与发动机转速同步，以减少不必要的发动机振动。 工作，被动和停用的气缸的数量可以响应于期望输出或操作条件的变化而不断地改变。
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公开(公告)号：US20100037857A1
公开(公告)日：2010-02-18
申请号：US12615232
申请日：2009-11-09
CPC分类号： F02D41/0087 , F02D37/02 , F02D41/1401 , F02D41/266 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/1512 , Y02T10/46
摘要： A variety of methods and arrangements for improving the fuel efficiency of internal combustion engines are described. Generally, an engine is controlled to operate in a skip fire variable displacement mode. Feedback control is used to dynamically determine the working cycles to be skipped to provide a desired engine output. In some embodiments a substantially optimized amount of air and fuel is delivered to the working chambers during active working cycles so that the fired working chambers can operate at efficiencies close to their optimal efficiency. In some embodiments, the appropriate firing pattern is determined at least in part using predictive adaptive control. By way of example, sigma delta controllers work well for this purpose. In some implementations, the feedback includes feedback indicative of at least one of actual and requested working cycle firings. In some embodiments, the appropriate firings are determined on a firing opportunity by firing opportunity basis. Additionally, in some embodiments, an indicia of the current rotational speed of the engine is used as a clock input for a controller used to selectively cause the skipped working cycles to be skipped.
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