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1. 发明授权

US09020735B2 Skip fire internal combustion engine control 有权
标题翻译：跳火内燃机控制
公开(公告)号：US09020735B2
公开(公告)日：2015-04-28
申请号：US13309447
申请日：2011-12-01
申请人： Adya S. Tripathi , Farzad Sahandiesfanjani
发明人： Adya S. Tripathi , Farzad Sahandiesfanjani
IPC分类号： F02D28/00 , F02D41/28 , F02D41/00 , F02D41/30 , F02D41/14 , F02D41/26 , F02P5/00 , F02P5/15 , G06F19/00 , G06F17/00 , F02D37/02
CPC分类号： F02D41/28 , F02D37/02 , F02D41/00 , F02D41/008 , F02D41/0087 , F02D41/1401 , F02D41/1408 , F02D41/266 , F02D41/30 , F02D2041/1432 , F02D2200/602 , F02D2250/18 , F02D2400/02 , F02P5/00 , F02P5/1512 , G06F17/00 , G06F19/00 , Y02T10/46
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. In one aspect, the working chamber firing that are selected to deliver the desired engine output are determined at least in part based on torque feedback. The torque feedback may be an indication of the torque output of the engine or the torque experienced at some other location in the drive train. In some embodiments, the torque feedback signal is filtered to remove high frequency components of the torque feedback signal in order to help stabilize the system. In another aspect, other operational parameters are used as feedback in the determination of the firing sequence. In yet another aspect, a filter is arranged to filter a feedback signal to provide a filtered feedback signal that is used in the determination of the working chamber firings.
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。一方面，至少部分地基于扭矩反馈来确定被选择用于输送期望的发动机输出的工作室燃烧。扭矩反馈可以是发动机的扭矩输出或在传动系中的某个其他位置处经历的扭矩的指示。在一些实施例中，转矩反馈信号被滤波以去除转矩反馈信号的高频分量，以帮助系统稳定。在另一方面，其他操作参数用作确定击发序列中的反馈。在另一方面，滤波器被布置成对反馈信号进行滤波以提供用于确定工作室发射的滤波反馈信号。

2. 发明授权

US08131445B2 Internal combustion engine control for improved fuel efficiency 有权
标题翻译：内燃机控制提高燃油效率
公开(公告)号：US08131445B2
公开(公告)日：2012-03-06
申请号：US13101034
申请日：2011-05-04
申请人： Adya S. Tripathi , Chester J. Silvestri
发明人： Adya S. Tripathi , Chester J. Silvestri
IPC分类号： G06F19/00 , F02D41/40
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. Predictive Adaptive control is used to dynamically determine the working cycles to be skipped to provide a desired engine output.
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。预测自适应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。

3. 发明申请

US20110213541A1 INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY 有权
标题翻译：内燃机控制提高燃油效率
公开(公告)号：US20110213541A1
公开(公告)日：2011-09-01
申请号：US13101034
申请日：2011-05-04
申请人： Adya S. TRIPATHI , Chester J. SILVESTRI
发明人： Adya S. TRIPATHI , Chester J. SILVESTRI
IPC分类号： F02D28/00
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. Predictive Adaptive control is used to dynamically determine the working cycles to be skipped to provide a desired engine output.
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。预测自适应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。

4. 发明授权

US07954474B2 Internal combustion engine control for improved fuel efficiency 有权
公开(公告)号：US07954474B2
公开(公告)日：2011-06-07
申请号：US12615171
申请日：2009-11-09
申请人： Adya S. Tripathi , Chester J. Silvestri
发明人： Adya S. Tripathi , Chester J. Silvestri
IPC分类号： F02P5/00 , F02M7/00
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.

5. 发明申请

US20100006065A1 INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY 有权
公开(公告)号：US20100006065A1
公开(公告)日：2010-01-14
申请号：US12501345
申请日：2009-07-10
申请人： Adya S. TRIPATHI , Chester J. SILVESTRI
发明人： Adya S. TRIPATHI , Chester J. SILVESTRI
IPC分类号： F02D41/00 , F02D7/00 , G06F19/00
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.

6. 发明授权

US07283001B2 Noise-shaping amplifier with waveform lock 有权
标题翻译：带波形锁定的噪声整形放大器
公开(公告)号：US07283001B2
公开(公告)日：2007-10-16
申请号：US11432291
申请日：2006-05-10
申请人： Babak Mazda , Farzad Sahandiesfanjani , Adya S. Tripathi
发明人： Babak Mazda , Farzad Sahandiesfanjani , Adya S. Tripathi
IPC分类号： H03L7/00
CPC分类号： H03F1/32 , H03F1/26 , H03F3/45475 , H03F2200/331 , H03L7/093
摘要： A generalized amplifier architecture is described which employs noise-shaping feedback, and for which the output waveform closely resembles the input waveform.
摘要翻译：描述了采用噪声整形反馈的广义放大器架构，并且其输出波形与输入波形非常相似。

7. 发明授权

US06281747B1 Power efficient line driver 有权
公开(公告)号：US06281747B1
公开(公告)日：2001-08-28
申请号：US09769234
申请日：2001-01-24
申请人： Bhupendra K. Ahuja , Cary L. Delano , Adya S. Tripathi
发明人： Bhupendra K. Ahuja , Cary L. Delano , Adya S. Tripathi
IPC分类号： H03F136
摘要： A signal processing circuit is described including a frequency selective network in a feedback loop. An analog-to-analog converter in the feedback loop is coupled to the frequency selective network. A continuous-time feedback path provides feedback from the output terminal of the analog-to-analog converter to the frequency selective network.

8. 发明申请

US20110208405A1 INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY 有权
标题翻译：内燃机控制提高燃油效率
公开(公告)号：US20110208405A1
公开(公告)日：2011-08-25
申请号：US13101042
申请日：2011-05-04
申请人： Adya S. TRIPATHI , Chester J. SILVESTRI
发明人： Adya S. TRIPATHI , Chester J. SILVESTRI
IPC分类号： F02D28/00 , F02D17/02
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。

9. 发明申请

US20110048372A1 System and Methods for Stoichiometric Compression Ignition Engine Control 失效
标题翻译：化学计量压力点火发动机控制系统与方法
公开(公告)号：US20110048372A1
公开(公告)日：2011-03-03
申请号：US12833869
申请日：2010-07-09
申请人： Robert W. Dibble , Adya S. Tripathi , Chester J. Silvestri
发明人： Robert W. Dibble , Adya S. Tripathi , Chester J. Silvestri
IPC分类号： F02D41/00 , F02M51/00
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。

10. 发明申请

US20100100299A1 System and Methods for Improving Efficiency in Internal Combustion Engines 有权
标题翻译：提高内燃机效率的系统和方法
公开(公告)号：US20100100299A1
公开(公告)日：2010-04-22
申请号：US12501392
申请日：2009-07-10
申请人： Adya S. TRIPATHI , Chester J. SILVESTRI
发明人： Adya S. TRIPATHI , Chester J. SILVESTRI
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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