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1. 发明授权

US06334355B1 Enhanced vacuum decay diagnostic and integration with purge function 有权
标题翻译：增强的真空衰减诊断和清洗功能的集成
公开(公告)号：US06334355B1
公开(公告)日：2002-01-01
申请号：US09487062
申请日：2000-01-19
申请人： Malcolm James Grieve , Stephen F. Majkowski , Kenneth M. Simpson , Michael J. Steckler , Carelton Williams
发明人： Malcolm James Grieve , Stephen F. Majkowski , Kenneth M. Simpson , Michael J. Steckler , Carelton Williams
IPC分类号： G01M304
CPC分类号： F02M25/0809 , F02M25/089 , F02M37/106
摘要： The present invention relates a method of detecting leaks and blockages in a fuel system. The leaks are detected using a RAMPOFF mode and a TANK mode. The RAMPOFF mode modifies the evaporative diagnostic purge logic to increase the ramp down rates of the evaporative purge duty cycle to aggressively shut off the purge solenoid valve for tests used to detect leaks as small as 0.02 inches in diameter. The TANK mode modifies the evaporative diagnostic purge logic to support aggressive purging requirements for tests used to detect larger leaks of greater than 0.04 inches in diameter. The MASS FLOW mode modifies the evaporative diagnostic purge logic to hold a constant purge mass flow rate necessary to detect blockages across a vent solenoid valve. The RAMPOFF mode, TANK mode, and MASS FLOW modes support evaporative diagnostics that are run continuously within a fuel system when acceptable engine operating conditions are present.
摘要翻译：本发明涉及一种检测燃料系统中的泄漏和堵塞的方法。使用RAMPOFF模式和TANK模式检测泄漏。 RAMPOFF模式改变蒸发诊断清除逻辑，以增加蒸发清除占空比的斜降速率，以积极地关闭清洗电磁阀，以进行用于检测直径为0.02英寸的泄漏的测试。 TANK模式改变蒸发诊断清洗逻辑，以支持对用于检测大于0.04英寸直径的较大泄漏的测试的积极清洗要求。 MASS FLOW模式修改蒸发诊断清除逻辑，以保持恒定的清除质量流量，以便检测通过排气电磁阀的阻塞。 RAMPOFF模式，TANK模式和MASS FLOW模式支持在可接受的发动机运行条件下在燃油系统内连续运行的蒸发诊断。

2. 发明授权

US06722187B2 Enhanced vacuum decay diagnostic and integration with purge function 有权
标题翻译：增强的真空衰减诊断和清洗功能的集成
公开(公告)号：US06722187B2
公开(公告)日：2004-04-20
申请号：US09884496
申请日：2001-06-18
申请人： Malcolm James Grieve , Stephen F. Majkowski , Kenneth M. Simpson , Michael J. Steckler , Carelton Williams
发明人： Malcolm James Grieve , Stephen F. Majkowski , Kenneth M. Simpson , Michael J. Steckler , Carelton Williams
IPC分类号： G01M304
CPC分类号： F02M25/0809 , F02M25/089 , F02M37/106
摘要： The present invention relates a method of detecting leaks and blockages in a fuel system. The leaks are detected using a RAMPOFF mode and a TANK mode. The RAMPOFF mode modifies the evaporative diagnostic purge logic to increase the ramp down rates of the evaporative purge duty cycle to aggressively shut off the purge solenoid valve for tests used to detect leaks as small as 0.02 inches in diameter. The TANK mode modifies the evaporative diagnostic purge logic to support aggressive purging requirements for tests used to detect larger leaks of greater than 0.04 inches in diameter. The MASS FLOW mode modifies the evaporative diagnostic purge logic to hold a constant purge mass flow rate necessary to detect blockages across a vent solenoid valve. The RAMPOFF mode, TANK mode, and MASS FLOW modes support evaporative diagnostics that are run continuously within a fuel system when acceptable engine operating conditions are present.
摘要翻译：本发明涉及一种检测燃料系统中的泄漏和堵塞的方法。使用RAMPOFF模式和TANK模式检测泄漏。 RAMPOFF模式改变蒸发诊断清除逻辑，以增加蒸发清除占空比的斜降速率，以积极地关闭清洗电磁阀，以进行用于检测直径为0.02英寸的泄漏的测试。 TANK模式改变蒸发诊断清洗逻辑，以支持对用于检测大于0.04英寸直径的较大泄漏的测试的积极清洗要求。 MASS FLOW模式修改蒸发诊断清除逻辑，以保持恒定的清除质量流量，以便检测通过排气电磁阀的阻塞。 RAMPOFF模式，TANK模式和MASS FLOW模式支持在可接受的发动机运行条件下在燃油系统内连续运行的蒸发诊断。

3. 发明授权

US06308119B1 Preset diagnostic leak detection method for an automotive evaporative emission system 有权
标题翻译：汽车蒸发排放系统的预设诊断泄漏检测方法
公开(公告)号：US06308119B1
公开(公告)日：2001-10-23
申请号：US09438068
申请日：1999-11-10
申请人： Stephen F. Majkowski , Michael J. Steckler , Kenneth M. Simpson , Malcolm James Grieve
发明人： Stephen F. Majkowski , Michael J. Steckler , Kenneth M. Simpson , Malcolm James Grieve
IPC分类号： G01M326
CPC分类号： F02M25/0809
摘要： An improved method of diagnosing evaporative emission system leaks at engine idle, wherein the system is closed and drawn down to a sub-atmospheric pressure early in a driving cycle prior to the achievement of an idle condition appropriate for leak testing. When the test enabling conditions other than engine idle are met, the system vent is closed, and the purge valve is modulated to regulate the fuel tank pressure at a sub-atmospheric value substantially equivalent to the leak test pressure to be used at engine idle. When engine idle is achieved, the purge valve is closed, and the leak test is conducted with little or no delay. The time required to conduct the leak test is improved because the system pressure is at or near the test pressure when the engine idle condition is achieved, and at the same time, the reliability of the leak test data is improved because vapor generation equilibrium in the fuel tank is more nearly achieved when the leak test is initiated.
摘要翻译：一种用于诊断发动机怠速时的蒸发排放系统泄漏的改进方法，其中在实现适合于泄漏测试的怠速条件之前，该系统被关闭并且在驾驶循环早期被拉低至次大气压。当满足发动机怠速以外的测试使能条件时，系统通风口关闭，并且对发动机怠速时使用的泄漏测试压力等于大气压值的调节燃料箱压力进行调节。当实现发动机空转时，关闭排气阀，并且几乎没有延迟进行泄漏测试。由于系统压力在实现发动机怠速状态时处于或接近试验压力，所以进行泄漏试验所需的时间得到改善，同时，泄漏试验数据的可靠性得到改善，因为在当泄漏测试开始时，燃油箱更接近实现。

4. 发明授权

US06807847B2 Leak detection method for an evaporative emission system including a flexible fuel tank 有权
标题翻译：包括柔性燃油箱的蒸发排放系统的泄漏检测方法
公开(公告)号：US06807847B2
公开(公告)日：2004-10-26
申请号：US10080244
申请日：2002-02-21
申请人： Michael J. Steckler , Steve L. Melby
发明人： Michael J. Steckler , Steve L. Melby
IPC分类号： G01M304
CPC分类号： F02M25/089 , F02M25/0809 , F02M2025/0845
摘要： An improved method of testing for evaporative emission system leaks monitors vacuum decay in a closed system so that the effects of fuel tank expansion during the test interval are minimized. In a first embodiment pass/fail criteria are established in terms of the time required for the system pressure to decay by a calibrated amount for a predetermined leak size. A leak at least as large as the predetermined leak is detected if the measured time is shorter than a calibrated time. The effects of fuel tank expansion are minimized because the changes in fuel tank volume occur primarily due to the pressure differential across the tank, as opposed to the leak size, and the changes that occur during the test are essentially the same for any leak size under consideration. In a second embodiment, the pass/fail criteria are established in terms of the change in pressure that occurs in the calibrated time; a leak at least a large as the predetermined leak is detected if the measured change in pressure is larger than the calibrated pressure amount.
摘要翻译：一种改进的蒸发排放系统泄漏测试方法可以监测封闭系统中的真空衰减，从而使测试间隔期间燃油箱膨胀的影响最小化。在第一实施例中，根据预定泄漏尺寸的系统压力衰减校准量所需的时间来建立通过/不合格标准。如果测量的时间短于校准时间，则检测至少与预定泄漏一样大的泄漏。燃料箱膨胀的影响被最小化，因为燃料箱体积的变化主要是由于罐体上的压差而不同于泄漏尺寸，并且在试验期间发生的变化对于任何泄漏尺寸基本相同考虑。在第二实施例中，通过/失败标准是根据在校准时间内发生的压力变化来建立的; 如果所测量的压力变化大于校准压力量，则检测到预定泄漏量至少大的泄漏。

5. 发明授权

US06622691B2 Control method for a direct injection gas engine with fuel vapor purging 失效
标题翻译：具有燃料蒸气吹扫的直喷式发动机的控制方法
公开(公告)号：US06622691B2
公开(公告)日：2003-09-23
申请号：US09950283
申请日：2001-09-10
申请人： Andrew P. Bagnasco , Michael J. Steckler , Sergio Quelhas , Derk Geurts
发明人： Andrew P. Bagnasco , Michael J. Steckler , Sergio Quelhas , Derk Geurts
IPC分类号： F02B1700
CPC分类号： F02D41/3023 , F02B2075/125 , F02D41/0032 , F02D41/0042 , F02D41/0045 , F02D41/2432 , F02D41/2441 , F02D41/2454 , F02D41/3029 , F02M25/08 , Y02T10/123
摘要： A control method for a direct injection gasoline engine operable in stratified or homogenous combustion modes and having a fuel vapor purge system estimates the hydrocarbon concentration of purge vapor during open loop fuel control in the stratified combustion mode, and controls the fuel injection quantity and the combustion mode based on the estimated concentration. The hydrocarbon concentration of the purge vapor is estimated during open-loop fuel control by measuring the air/fuel ratio error during steady state operation with no fuel vapor purging, and using such air/fuel ratio error to normalize the air/fuel error observed during steady state operation with purge control. The fuel injection quantity is compensated for the estimated purge vapor concentration, and engine combustion mode is determined in part based on a comparison of the estimated concentration with a calibrated threshold.
摘要翻译：一种直接喷射汽油发动机的控制方法，其分层或均匀的燃烧模式可操作并且具有燃料蒸汽清除系统以分层燃烧模式估计开环燃料控制期间的净化蒸汽的烃浓度，并且控制燃料喷射量和燃烧模式基于估计浓度。在开环燃料控制期间通过在稳态运行期间测量空燃比误差来估计净化蒸汽的碳氢化合物浓度，而不使用燃料蒸汽清除，并且使用这种空/燃比误差来标准化在稳态运行与清除控制。燃料喷射量被补偿估计的吹扫蒸汽浓度，并且部分地基于估计浓度与校准阈值的比较来确定发动机燃烧模式。

6. 发明授权

US5553452A Control system for a jet engine hydraulic system 失效
标题翻译：喷气发动机液压系统控制系统
公开(公告)号：US5553452A
公开(公告)日：1996-09-10
申请号：US321343
申请日：1994-10-11
申请人： Barton H. Snow , David M. Leighton , Michael J. Steckler
发明人： Barton H. Snow , David M. Leighton , Michael J. Steckler
IPC分类号： F02K1/15 , F16D31/02
CPC分类号： F02K1/15 , F05D2200/11 , F05D2200/13
摘要： A method of controlling a system is adapted to control flow to throat nozzle and vectoring nozzle actuators. The method comprises the steps of summing a plurality of signals representative of flow to the vectoring nozzle actuators with a signal representative of flow to the throat nozzle actuators to generate a total hydraulic flow signal. The total flow signal is then compared to a signal representative of total pump output to generate a reserve signal. Finally, a scaled rate limit signal is generated from the reserve signal and multiplied by predetermined ratio signals such that the ratio signals are limited by the difference between pump output and pump demand.
摘要翻译：一种控制系统的方法适用于控制向喉部喷嘴和向量喷嘴致动器的流动。该方法包括以下步骤：将代表向矢量喷嘴致动器的流动的多个信号与表示流向喉部喷嘴致动器的信号相加以产生总液压流动信号的步骤。然后将总流量信号与表示总泵输出的信号进行比较以产生储备信号。最后，从保留信号产生缩放的速率限制信号并乘以预定的比率信号，使得比率信号受到泵输出和泵的需求之差的限制。

7. 发明授权

US06467464B2 Vacuum based fuel system 失效
标题翻译：基于真空的燃料系统
公开(公告)号：US06467464B2
公开(公告)日：2002-10-22
申请号：US09733011
申请日：2000-12-08
申请人： David Howard Burke , Michael J. Steckler
发明人： David Howard Burke , Michael J. Steckler
IPC分类号： F02M2508
CPC分类号： F02M25/089 , B60K15/03504 , B60K15/03519 , B60K2015/03557
摘要： A zero emissions fuel system includes a fuel tank fluidly interconnected with a fuel vapor containment and absorption canister. The canister is further interconnected with an engine intake manifold via a purge solenoid valve that controls the extent to which a vacuum in the intake manifold affects the canister. The canister is also interconnected with the ambient environment via at least one selectively operable valve. During normal operation of the engine, the purge solenoid valve allows the intake manifold to draw fuel vapor from the canister for consumption by the engine. At a predetermined vacuum pressure, the at least one valve opens, thereby allowing outside air to flow into the system through the vacuum relief valve to facilitate purging of the canister.
摘要翻译：零排放燃料系统包括与燃料蒸气容纳和吸收罐流体互连的燃料箱。通过净化电磁阀进一步将罐与发动机进气歧管相互连接，该清洗电磁阀控制进气歧管中的真空影响罐的程度。罐还通过至少一个选择性可操作的阀与周围环境互连。在发动机的正常操作期间，清洗电磁阀允许进气歧管从罐抽取燃料蒸汽以供发动机消耗。在预定的真空压力下，至少一个阀打开，从而允许外部空气通过真空释放阀流入系统以便于清洗罐。

8. 发明授权

US5379585A Hydraulic control system for a jet engine nozzle 失效
标题翻译：用于喷气发动机喷嘴的液压控制系统
公开(公告)号：US5379585A
公开(公告)日：1995-01-10
申请号：US86069
申请日：1993-07-06
申请人： Barton H. Snow , David M. Leighton , Michael J. Steckler
发明人： Barton H. Snow , David M. Leighton , Michael J. Steckler
IPC分类号： F02K1/15 , F02K1/00
CPC分类号： F02K1/15 , F05D2200/11 , F05D2200/13
摘要： A method of controlling a system is adapted to control flow to throat nozzle and vectoring nozzle actuators. The method comprises the steps of summing a plurality of signals representative of flow to the vectoring nozzle actuators with a signal representative of flow to the throat nozzle actuators to generate a total hydraulic flow signal. The total flow signal is then compared to a signal representative of total pump output to generate a reserve signal. Finally, a scaled rate limit signal is generated from the reserve signal and multiplied by predetermined ratio signals such that the ratio signals are limited by the difference between pump output and pump demand.
摘要翻译：一种控制系统的方法适用于控制向喉部喷嘴和向量喷嘴致动器的流动。该方法包括以下步骤：将代表向矢量喷嘴致动器的流动的多个信号与表示流向喉部喷嘴致动器的信号相加以产生总液压流动信号的步骤。然后将总流量信号与表示总泵输出的信号进行比较以产生储备信号。最后，从保留信号产生缩放的速率限制信号并乘以预定的比率信号，使得比率信号受到泵输出和泵的需求之差的限制。

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