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1. 发明授权

US5479898A Method and apparatus for controlling engine torque 失效
标题翻译：用于控制发动机转矩的方法和装置
公开(公告)号：US5479898A
公开(公告)日：1996-01-02
申请号：US270963
申请日：1994-07-05
申请人： Michael J. Cullen , Louis R. Christensen , Peter J. Grutter , Michael A. Weyburne , Joseph N. Ulrey , David G. Farmer
发明人： Michael J. Cullen , Louis R. Christensen , Peter J. Grutter , Michael A. Weyburne , Joseph N. Ulrey , David G. Farmer
IPC分类号： F02D37/02 , F02D41/00 , F02D41/36 , F02P5/04 , F02P5/15
CPC分类号： F02P5/1504 , F02D37/02 , F02D41/0087 , F02P5/045 , F02D2250/18 , Y02T10/46
摘要： A method for reducing the engine torque being produced by an internal combustion engine to a desired engine torque through coordinated control of spark retard, cylinder cut-out and air/fuel scheduling. The method is for use with a vehicle including a multi-cylinder internal combustion engine capable of generating torque, each cylinder having an associated fuel injector for providing fuel to the cylinder and an associated spark timing control for providing a spark for combustion of the fuel with fresh air during engine operation. The method includes identifying the desired engine torque to which the engine torque being produced is to be reduced, and determining a first torque reduction to be achieved by defueling at least one of the engine cylinders. The method also includes determining a second torque reduction to be achieved by lean air/fuel scheduling, the second torque reduction being adjusted for the number of cylinders defueled, and determining a third torque reduction to be achieved by spark retardation, the third torque reduction being adjusted for the number of cylinders defueled and for the lean air/fuel scheduling.
摘要翻译：一种通过协调控制火花熄灭，气缸切断和空气/燃料调度，将由内燃机产生的发动机扭矩降低到期望的发动机转矩的方法。该方法用于包括能够产生扭矩的多缸内燃机的车辆，每个气缸具有用于向气缸提供燃料的相关燃料喷射器和用于为燃料燃烧提供火花的相关火花正时控制，发动机运行时的新鲜空气。所述方法包括识别要减小所产生的发动机扭矩的期望的发动机扭矩，以及确定通过排放至少一个发动机气缸来实现的第一转矩降低。该方法还包括确定通过稀薄空气/燃料调度来实现的第二扭矩降低，针对被排出的气缸数量调节第二扭矩减小，以及确定通过火花放电实现的第三扭矩降低，第三扭矩降低根据排出的气瓶数量和稀薄空气/燃料调度进行调整。

2. 发明授权

US5404718A Engine control system 失效
标题翻译：发动机控制系统
公开(公告)号：US5404718A
公开(公告)日：1995-04-11
申请号：US127152
申请日：1993-09-27
申请人： Daniel V. Orzel , Tri T. Truong , David G. Farmer
发明人： Daniel V. Orzel , Tri T. Truong , David G. Farmer
IPC分类号： F01N11/00 , F01N3/20
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A control system which controls engine air/fuel ratio while providing a measurement of efficiency in the catalytic converter coupled to the engine exhaust. A test period is completed when counts in transitions of a feedback variable derived from an exhaust gas oxygen sensor positioned upstream of the converter have reached a preselected count for each of a plurality of inducted air flow ranges. Converter efficiency is determined during the test cycle by comparing an integration of the feedback variable, after band pass filtering and rectification, to an integration of a downstream exhaust gas oxygen sensor after its output is band pass filtered and rectified.
摘要翻译：控制系统，其控制发动机空气/燃料比，同时提供耦合到发动机排气的催化转化器的效率的测量。在位于转换器上游的排气氧传感器得到的反馈变量的转变计数已达到多个感应空气流量范围中的每一个的预选计数时，完成测试周期。转换器效率在测试周期中通过将带通滤波和整流后的反馈变量的积分与带通滤波和整流后的下游排气氧传感器的积分进行比较来确定。

3. 发明申请

US20130338870A1 SYSTEM AND METHOD FOR PERFORMING DIAGNOSTICS OF AN ACTIVE GRILLE SHUTTER SYSTEM 审中-公开
标题翻译：用于执行活动格栅切换系统诊断的系统和方法
公开(公告)号：US20130338870A1
公开(公告)日：2013-12-19
申请号：US13524676
申请日：2012-06-15
申请人： David G. Farmer , Ankur Jaiswal
发明人： David G. Farmer , Ankur Jaiswal
IPC分类号： G06F7/00
CPC分类号： B60K11/085 , F01P11/16 , F01P2031/00 , Y02T10/88
摘要： A system and method for diagnosing a mechanical failure in an active grille shutter (AGS) system of a vehicle. The method includes receiving at least one mechanical fault condition signal, each of the at least one mechanical fault condition signals being indicative of whether a particular mechanical fault condition was detected in the AGS system. The method also includes receiving a temperature signal indicating a temperature at a location proximate to a grille shutter of the AGS and determining whether to perform an extended diagnostic based on the at least one mechanical fault condition signal and the temperature signal.
摘要翻译：一种用于诊断车辆的活动格栅快门（AGS）系统中的机械故障的系统和方法。所述方法包括接收至少一个机械故障状态信号，所述至少一个机械故障状态信号中的每一个指示在AGS系统中是否检测到特定的机械故障状况。该方法还包括接收指示在靠近AGS的格栅快门的位置处的温度的温度信号，并且基于至少一个机械故障条件信号和温度信号来确定是否执行扩展诊断。

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