公开(公告)号：US20050205049A1

公开(公告)日：2005-09-22

申请号：US11079968

申请日：2005-03-14

申请人： Donald Lewis

发明人： Donald Lewis

IPC分类号： F02P5/15 ,  F01L9/04 ,  F01L13/00 ,  F02D13/02 ,  F02D13/04 ,  F02D13/06 ,  F02D17/02 ,  F02D35/00 ,  F02D37/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D43/00 ,  F02D45/00 ,  F02N99/00 ,  F01L1/34

CPC分类号： F02D41/0002 ,  F01L1/14 ,  F01L1/146 ,  F01L13/0005 ,  F01L2009/0436 ,  F01L2800/03 ,  F02D13/0215 ,  F02D13/0234 ,  F02D13/0253 ,  F02D13/0257 ,  F02D13/06 ,  F02D17/02 ,  F02D35/0023 ,  F02D37/02 ,  F02D41/042 ,  F02D41/047 ,  F02D41/1484 ,  F02D2041/001 ,  F02D2041/0095 ,  F02N99/004 ,  F02N99/006 ,  Y02T10/42

摘要： A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditions where said at least one valve is in said closed position operating with the other of the intake and exhaust valve open, then closing the other of the intake and exhaust valve, and then opening the other of the intake and exhaust valve to generate braking torque to slow the engine.

摘要翻译： 一种用于在汽缸中至少具有引擎的活塞的进气门和排气门的方法，其包括在发动机关闭的条件期间，将所述进气门和排气门中的至少一个保持在关闭位置，以及 在所述至少一个阀处于所述关闭位置并且进气门和排气门中的另一个打开的情况下，然后关闭所述进排气门中的另一个，然后打开所述进排气门中的另一个以产生制动 扭矩减慢发动机。

公开(公告)号：US20050022782A1

公开(公告)日：2005-02-03

申请号：US10874380

申请日：2004-06-24

申请人： Katsunori Ueda ,  Hideyuki Handa ,  Kenichi Nakamori

发明人： Katsunori Ueda ,  Hideyuki Handa ,  Kenichi Nakamori

IPC分类号： F02D9/02 ,  F02D31/00 ,  F02D35/00 ,  F02D41/08 ,  F02D41/14 ,  F02D41/16 ,  F02D41/18 ,  F02D45/00

CPC分类号： F02D41/1497 ,  F02D31/003 ,  F02D35/0023 ,  F02D2041/1409 ,  F02D2200/0404 ,  F02D2200/1012 ,  F02D2250/18

摘要： To permit easy and adequate setting of a gain in an internal combustion engine (hereinafter be called an “engine”) for the surer stabilization of an idle speed, the present invention provides a device for controlling an air volume during an idle operation of the engine. This device is provided with a first estimation unit for estimating a current output torque correlation value corresponding to a present intake-air volume of the engine; a second estimation unit for estimating an output torque correlation value correction amount corresponding to a difference between a current engine speed and a target engine speed of the engine; a third estimation unit for estimating a target output torque correlation value based on the correlation value and the correction amount; and a control unit for controlling an intake-air-volume adjusting system of the engine to achieve an intake-air volume which is equivalent to the target output torque correlation value.

摘要翻译： 本发明提供一种用于在发动机怠速运转期间控制空气量的装置，以便容易且充分地设定内燃机（以下称为“发动机”）的增益，以确保怠速的稳定性。 。 该装置设置有第一估计单元，用于估计与发动机的当前进气量对应的当前输出转矩相关值; 第二估计单元，用于估计与当前发动机转速和发动机的目标发动机转速之间的差相对应的输出转矩相关值校正量; 第三估计单元，用于基于所述相关值和所述校正量来估计目标输出转矩相关值; 以及控制单元，用于控制发动机的进气量调节系统，以实现与目标输出转矩相关值相当的进气量。

公开(公告)号：US06505465B2

公开(公告)日：2003-01-14

申请号：US09901064

申请日：2001-07-10

申请人： Yukiko Kanazawa ,  Hideaki Katashiba ,  Kazuhiko Kawajiri ,  Takashi Yonezawa

发明人： Yukiko Kanazawa ,  Hideaki Katashiba ,  Kazuhiko Kawajiri ,  Takashi Yonezawa

IPC分类号： F02M2506

CPC分类号： F01N3/0842 ,  F01N3/0814 ,  F02D35/0023 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/1462 ,  F02D41/187 ,  F02D41/2422 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2250/36

摘要： A device for controlling an internal combustion engine capable of estimating the amount of NOx emission within short periods of time maintaining high precision and realizing improved control performance without increasing the cost as a result of not using map data in the ROM. The device includes NOx operation circuit for estimating the amount of NOx in the exhaust gas from a theoretical formula and an empirical formula based upon the intake air amount Qa, intake air temperature To, pressure Pb, air-fuel ratio &lgr; and EGR rate &bgr;, and control circuit for controlling at least either the NOx purifying catalyst or the combustion state in the internal combustion engine in order to lower the amount of NOx emission.

摘要翻译： 一种用于控制能够在短时间内估计NOx排放量的内燃机的装置，其保持高精度并且实现改进的控制性能，而不会由于不使用ROM中的地图数据而增加成本。 该装置包括：NOx运算电路，用于根据理论公式估计排气中的NOx的量，以及基于进气量Qa，进气温度To，压力Pb，空燃比lambd和EGR率β的经验公式， 以及控制电路，用于至少控制NOx净化催化剂或内燃机中的燃烧状态，以便降低NOx排放量。

公开(公告)号：US06481273B2

公开(公告)日：2002-11-19

申请号：US09782246

申请日：2001-02-13

申请人： Peter James Maloney

发明人： Peter James Maloney

IPC分类号： G01M1500

CPC分类号： F02D41/008 ,  F02D35/0023 ,  F02D41/1408 ,  F02D41/1474 ,  F02D41/1495 ,  F02D41/2438 ,  F02D41/2458 ,  F02D41/2474 ,  F02D2041/288 ,  G01N27/4175

摘要： An improved method of assessing the frequency response of an in vehicle exhaust gas air/fuel ratio sensor by measuring and analyzing the sensor response to a predetermined perturbation of the fuel delivered to the engine. In a first test mode that provides both quantitative and qualitative assessments, the perturbation is achieved by applying fixed biases to the fuel pulse widths of individual engine cylinders to create a rich/lean perturbation in the exhaust gas, and by adjusting the engine throttle to gradually vary the engine speed over a test interval so that the rich/lean perturbation correspondingly varies in frequency. Since the biases are fixed, intake port wall-wetting effects are minimized. In a second test mode that provides a qualitative assessment, the perturbation is achieved by applying an alternating fuel bias multiplier to every engine cylinder, with the engine operating at a fixed speed and load setting that is of interest for diagnostic purposes. In each case, the output of the air/fuel sensor is band-pass filtered at the frequency of the fuel bias pattern to identify the sensor response, and the response is rectified and low-pass filtered to produce a D.C. measure of the response amplitude to generate a pass/fail indication. In the first test mode, the output of the air/fuel sensor can also be sampled and incrementally processed with a Fast-Fourier-Transform (FFT) technique to identify the response amplitude of the sensor at each of a plurality of frequencies, forming the basis of a Bode plot.

摘要翻译： 通过测量和分析传感器对传递到发动机的燃料的预定扰动的响应来评估车辆废气空燃比传感器的频率响应的改进方法。 在提供定量和定性评估的第一测试模式中，通过将固定偏差应用于各个发动机气缸的燃料脉冲宽度来产生排气中的富/弱扰动并且通过逐渐调节发动机节气门来实现扰动 在测试间隔内改变发动机转速，使得丰富/精细的扰动频率相应变化。 由于偏压是固定的，所以进气口壁润湿效果最小化。 在提供定性评估的第二测试模式中，通过对每个发动机气缸施加交替的燃料偏置乘数来实现扰动，其中发动机以固定的速度和用于诊断目的的感兴趣的负载设置运行。 在每种情况下，空气/燃料传感器的输出以燃料偏压模式的频率进行带通滤波以识别传感器响应，并且响应被整流和低通滤波以产生响应幅度的DC测量值 以产生通过/失败指示。 在第一测试模式中，空气/燃料传感器的输出也可以采用快速傅立叶变换（FFT）技术进行采样和增量处理，以识别传感器在多个频率中的每一个处的响应幅度，从而形成 波德图的基础。

公开(公告)号：US6006724A

公开(公告)日：1999-12-28

申请号：US102366

申请日：1998-06-23

申请人： Nobutaka Takahashi ,  Yoshitaka Deguchi

发明人： Nobutaka Takahashi ,  Yoshitaka Deguchi

IPC分类号： F02D9/02 ,  F02D11/10 ,  F02D31/00 ,  F02D35/00 ,  F02D35/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/30 ,  F02D41/12

CPC分类号： F02D41/0002 ,  F02D11/105 ,  F02D31/003 ,  F02D35/0023 ,  F02D41/0005 ,  F02D41/14 ,  F02D2011/102 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/1004 ,  F02D2250/18 ,  F02D2250/41 ,  F02D35/023 ,  F02D41/3029 ,  Y02T10/42

摘要： The invention ensures that a vehicle responds in accordance with a driver's expectations during negative pressure control (or boost control). A negative pressure control target intake air flow rate is calculated. This air flow rate ensures that the pressure in a cylinder does not drop too low (which could increase oil leakage into the cylinder). A greater one of an ISC (idle speed control) target torque and a negative pressure control target intake air flow rate torque-converted value is selected. The selected torque is set as an engine demand torque. The engine demand torque is combined with a driver demand torque to calculate a target torque. The throttle valve is controlled in an electronic manner based on the target torque.

摘要翻译： 本发明确保车辆在负压控制（或升压控制）期间根据驾驶员的期望进行响应。 计算负压控制目标进气流量。 该气流速度确保气缸中的压力不会下降得太低（这可能增加漏油到气缸中）。 选择ISC（怠速控制）目标转矩和负压控制目标进气流量转矩转换值中的更大的一个。 选择的扭矩设定为发动机需求扭矩。 发动机需求扭矩与驾驶员需求扭矩相结合以计算目标扭矩。 基于目标转矩，以电子方式控制节流阀。

公开(公告)号：US5845486A

公开(公告)日：1998-12-08

申请号：US694066

申请日：1996-08-08

申请人： Yukihiro Yamashita ,  Toshiki Matsumoto

发明人： Yukihiro Yamashita ,  Toshiki Matsumoto

IPC分类号： F02D9/04 ,  F01N3/20 ,  F01N3/24 ,  F01N9/00 ,  F02D11/08 ,  F02D35/00 ,  F02D41/02 ,  F02D41/04 ,  F02P5/15

CPC分类号： F02D41/0255 ,  F01N3/20 ,  F01N3/2006 ,  F01N9/00 ,  F02D35/0023 ,  F02D41/042 ,  F02P5/1506 ,  F01N2260/14 ,  F01N2900/0422 ,  F02D2200/0802 ,  F02D9/04 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： In order to activate an exhaust catalyst of an engine as quickly as possible from the engine restart, an exhaust damper for opening and closing an exhaust pipe is disposed downstream of a catalyst. A pneumatic actuator drives to open and close the exhaust damper. A negative pressure is introduced into a pressure chamber of the pneumatic actuator to close the exhaust damper after the engine is stopped. The closed exhaust damper keeps the warmth of the catalyst to ensure high exhaust gas purification performed when the engine is restarted. Alternatively, activation of the exhaust catalyst is enhanced by retarding the engine ignition timing and raising the engine idling speed.

摘要翻译： 为了尽可能快地从发动机重起动起动发动机的排气催化剂，在催化剂的下游设置用于打开和关闭排气管的排气阻尼器。 气动执行器驱动以打开和关闭排气阻尼器。 在发动机停止后，将负压引入气动执行器的压力室中，以关闭排气阻尼器。 封闭的排气阻尼器保持催化剂的温暖，以确保在发动机重新起动时执行高排气净化。 或者，通过延迟发动机点火正时并提高发动机空转速度来增强排气催化剂的活化。

公开(公告)号：US5678526A

公开(公告)日：1997-10-21

申请号：US694584

申请日：1996-08-09

申请人： Michael John Cullen ,  John William Hoard

发明人： Michael John Cullen ,  John William Hoard

IPC分类号： F02B43/10 ,  F02D35/00 ,  F02D41/14

CPC分类号： F02D35/0023 ,  F02B43/10 ,  Y02T10/32

摘要： An internal combustion engine has a system, including diagnostics, for providing oxygen enriched air so as to control emissions of unburned hydrocarbons and carbon monoxide. The system includes the capability of determining whether the oxygen enrichment system is providing suitable mass flow to the engine and whether oxygen enrichment is available according to the specifications of the enrichment device.

摘要翻译： 内燃机具有用于提供富氧空气以便控制未燃碳氢化合物和一氧化碳排放的系统，包括诊断。 该系统包括确定富氧系统是否向发动机提供合适的质量流量以及根据浓缩装置的规格是否富氧的能力。

公开(公告)号：US5588410A

公开(公告)日：1996-12-31

申请号：US532669

申请日：1995-10-12

申请人： Hiroki Tamura ,  Naoki Yamazaki ,  Akihiro Takeyama ,  Hitoshi Kamura ,  Tetsuo Maeda

发明人： Hiroki Tamura ,  Naoki Yamazaki ,  Akihiro Takeyama ,  Hitoshi Kamura ,  Tetsuo Maeda

IPC分类号： F02D35/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/36 ,  F02D43/00 ,  F02D45/00 ,  F02P5/04 ,  F02P5/15

CPC分类号： F02P5/045 ,  F02D35/0023 ,  F02D41/1475 ,  F02D41/1486 ,  F02P5/1504 ,  Y02T10/46

摘要： An air-fuel ratio of respective (individual) cylinders of an engine is changed individually from a stoichiometric air-fuel ratio to a lean air-fuel ratio with the change timing of each of respective cylinders deviated and the intake air flow into an engine 11 is changed gradually by opening an air bypass valve in parallel to the changing of the air-fuel ratio. Concurrent change of ignition timing is also disclosed.

摘要翻译： PCT No.PCT / JP95 / 00680 Sec。 371 1995年10月12日第 102（e）1995年10月12日日期PCT 1995年4月6日提交PCT公布。 第WO95 / 27846号公报 日期1995年10月19日发动机各（各个）气缸的空燃比从化学计量空燃比单独变化为稀空燃比，各气缸的变更时刻偏离，进气 通过与空燃比的变化平行地打开空气旁通阀，流入发动机11的流量逐渐变化。 还公开了同时点火正时的变化。

公开(公告)号：US5163412A

公开(公告)日：1992-11-17

申请号：US789584

申请日：1991-11-08

申请人： Steven W. Neu ,  Bruce A. Bergman

发明人： Steven W. Neu ,  Bruce A. Bergman

IPC分类号： F02D31/00 ,  F02D35/00 ,  F02D41/24 ,  F02M23/04

CPC分类号： F02D35/0023 ,  F02D31/002 ,  F02D41/2432 ,  F02M23/04 ,  F02D41/2451 ,  F02D41/2474 ,  Y02T10/146 ,  Y02T10/22

摘要： A pollution or emission control system for retrofitting on older vehicle engines includes a catalytic converter with an in-built oxygen sensor for mounting in the exhaust line, and a supplemental air input line containing a control valve for connection to the engine intake manifold to control the amount of air supplied to the engine. A computer monitors the oxygen sensor output and the engine speed, and controls opening and closing of the control valve according to the detected conditions. The computer also controls the speed at which the valve is opened or closed dependent on the engine speed and optionally the engine temperature, so that the valve can be closed faster at slower engine speeds and opened faster at higher engine speed. The computer is additionally capable of producing diagnostic telemetry, both digital and analog, to assist installation of the invention and test for proper operation once installed.

摘要翻译： 用于旧车辆发动机改造的污染或排放控制系统包括具有用于安装在排气管线中的内置氧传感器的催化转化器和包含用于连接到发动机进气歧管的控制阀的补充空气输入管线，以控制 供给发动机的空气量。 计算机监视氧传感器输出和发动机转速，并根据检测到的条件控制控制阀的打开和关闭。 计算机还根据发动机速度和可选择的发动机温度来控制阀门打开或关闭的速度，使得在较慢的发动机速度下阀可以更快地关闭并且在较高的发动机转速下更快地打开。 计算机还能够产生数字和模拟的诊断遥测，以帮助安装本发明，并在安装后进行正确的操作。

公开(公告)号：US4480606A

公开(公告)日：1984-11-06

申请号：US433902

申请日：1982-10-12

申请人： Shinichi Kato ,  Katsuhiko Motosugi ,  Masatami Takimoto ,  Haruo Yamada ,  Kisaburo Mizuno ,  Mitsuyoshi Teramura

发明人： Shinichi Kato ,  Katsuhiko Motosugi ,  Masatami Takimoto ,  Haruo Yamada ,  Kisaburo Mizuno ,  Mitsuyoshi Teramura

IPC分类号： F02D41/14 ,  F02B31/00 ,  F02B31/08 ,  F02D21/08 ,  F02D35/00 ,  F02D43/00 ,  F02M7/04 ,  F02M7/133 ,  F02M23/04 ,  F02M7/00 ,  F01L3/00

CPC分类号： F02M23/04 ,  F02B31/08 ,  F02D35/0023 ,  F02D43/00 ,  F02M35/10229 ,  F02M7/133 ,  F02D41/0065 ,  Y02T10/146 ,  Y02T10/42

摘要： An internal combustion engine having a helically-shaped intake port. When the intake manifold vacuum is in the range of about -500 through -250 mmHg, a super lean mixture is fed into the cylinders of the engine. When the intake manifold vacuum is in the range of about -250 through -100 mmHg, a fuel mixture, having the stoichiometric air-fuel ratio, is fed into the cylinders of the engine. When the intake manifold vacuum is smaller than about -100 mmHg, a rich mixture is fed into the cylinders of the engine.

摘要翻译： 具有螺旋状进气口的内燃机。 当进气歧管真空度在约-500至-250mmHg的范围内时，超级稀混合物被送入发动机气缸。 当进气歧管真空度在约-250到-100mmHg的范围内时，具有理论空燃比的燃料混合物被供给到发动机气缸中。 当进气歧管真空度小于约-100mmHg时，将丰富的混合物送入发动机气缸。