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1. 发明申请

US20130018564A1 METHOD FOR PREPARING INTERNAL COMBUSTION ENGINE FOR SHUTDOWN TO ACHIEVE CLEAN RESTART 有权
标题翻译：制备内燃机以实现清洁重新启动的方法
公开(公告)号：US20130018564A1
公开(公告)日：2013-01-17
申请号：US13180863
申请日：2011-07-12
申请人： Timothy A. Coatesworth , Joseph Roos , Kenneth P. DeGroot , Sashidhar Velnati , Goro Tamai
发明人： Timothy A. Coatesworth , Joseph Roos , Kenneth P. DeGroot , Sashidhar Velnati , Goro Tamai
IPC分类号： F02D28/00
CPC分类号： B60W20/40 , B60W10/06 , B60W20/16 , F02D17/04 , F02D29/02 , F02D41/0002 , F02D41/0055 , F02D41/042 , F02D2041/001 , F02M25/08 , F02M26/13 , Y02T10/42 , Y02T10/47
摘要： A method for preparing an internal combustion (IC) engine component of a hybrid automotive powertrain for shutdown so as to enable clean restart is disclosed herein. The method includes determining if the IC engine is about to enter a shutdown mode. The method includes determining a number of engine run cycles to fill an intake manifold of the IC engine with clean air, if it is determined the IC engine is about to enter the shutdown mode. The method includes running the IC engine for the determined number of cycles to fill the intake manifold of the IC engine with clean air before shutting the IC engine down.
摘要翻译：本文公开了一种用于制造用于停机的混合动力汽车动力系的内燃（IC）发动机部件以便能够进行清洁再起动的方法。该方法包括确定IC引擎是否即将进入关机模式。该方法包括如果确定IC引擎即将进入关闭模式，则确定用清洁空气填充IC发动机的进气歧管的发动机运行循环次数。该方法包括在确定的循环次数之前运行IC引擎以在关闭IC发动机之前用清洁空气填充IC发动机的进气歧管。

2. 发明授权

US06360709B1 Piston top geometry for optimized combustion 有权
标题翻译：用于优化燃烧的活塞顶部几何形状
公开(公告)号：US06360709B1
公开(公告)日：2002-03-26
申请号：US09472378
申请日：1999-12-23
申请人： Dennis A Soltis , Kenneth P DeGroot , Joseph Jenkins , Philip S Keller , Bruce H Teague , Jeffrey W Anderson
发明人： Dennis A Soltis , Kenneth P DeGroot , Joseph Jenkins , Philip S Keller , Bruce H Teague , Jeffrey W Anderson
IPC分类号： F02B2300
CPC分类号： F02B23/08 , F02B2275/16 , F02F3/26 , Y02T10/125
摘要： A piston and cylinder assembly according to the invention includes a cylinder block having a cylinder defined by a cylinder bore wall, a cylinder head connected to the cylinder block, and a piston for reciprocating in the cylinder relative the cylinder head. A combustion chamber for an air/fuel mixture has a volume formed by the cylinder bore wall, cylinder head, and the piston, and is divided into an intake side and an exhaust side by a longitudinal center axis of the piston. A spark plug is mounted in the cylinder head and extends into the combustion chamber to ignite the air/fuel mixture therein. A crown of the piston has a raised peak offset from the longitudinal center axis for providing a homogeneous air/fuel mixture in the combustion chamber near the spark plug.
摘要翻译：根据本发明的活塞和气缸组件包括气缸体，其具有由气缸孔壁限定的气缸，连接到气缸体的气缸盖和用于在气缸中相对于气缸盖往复运动的活塞。用于空气/燃料混合物的燃烧室具有由气缸孔壁，气缸盖和活塞形成的容积，并且通过活塞的纵向中心轴线被分成进气侧和排气侧。火花塞安装在气缸盖中并延伸到燃烧室中以点燃其中的空气/燃料混合物。活塞的冠部具有从纵向中心轴线偏移的凸起峰，用于在火花塞附近的燃烧室中提供均匀的空气/燃料混合物。

3. 发明授权

US06253541B1 Triple oxygen sensor arrangement 有权
标题翻译：三重氧传感器布置
公开(公告)号：US06253541B1
公开(公告)日：2001-07-03
申请号：US09371541
申请日：1999-08-10
申请人： Raymond J. Sullivan , Bruce H. Teague , Kenneth P. DeGroot , Michael J. Reale
发明人： Raymond J. Sullivan , Bruce H. Teague , Kenneth P. DeGroot , Michael J. Reale
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N13/009 , F01N13/0093 , F01N2550/02 , F02D41/1441 , F02D2250/36 , Y02T10/47
摘要： An exhaust system is provided including two catalysts and three oxygen sensors. The second catalyst is disposed downstream of the first catalyst. The first oxygen sensor is disposed upstream of the first catalyst, the second oxygen sensor is disposed downstream of the first catalyst and upstream of the second catalyst, and the third oxygen sensor is disposed downstream of the second catalyst. A goal voltage corresponding to a desired level of nitrous oxide and hydrocarbon within the exhaust is provided for the third oxygen sensor. This goal voltage is based on engine RPM and MAP. The engine controller compares the goal voltage to an actual voltage generated by sensing the level of oxygen downstream of the second catalyst. Based on this comparison, an error value between the goal voltage and the actual voltage is obtained. This error value is converted into a goal voltage for the first oxygen sensor. An actual voltage generated by the first oxygen sensor sensing the amount of oxygen upstream of the first catalyst is compared to the goal voltage derived from the third oxygen sensor. The difference between the goal voltage and actual voltage is used to modulate the pulse width of a signal sent to the fuel injectors of an engine such that the amount of fuel delivered by the fuel injectors is modified. The second oxygen sensor generates an actual voltage corresponding to the amount of oxygen the second oxygen sensor senses downstream of the first catalyst and upstream of the second catalyst. Changes in the actual voltage generated by the second oxygen sensor are compared to changes in the actual voltage generated by the first oxygen sensor. By monitoring the nature of theses changes as they relate to one another, the performance of the first catalyst can be determined.
摘要翻译：提供了包括两个催化剂和三个氧传感器的排气系统。第二催化剂设置在第一催化剂的下游。第一氧传感器设置在第一催化剂的上游，第二氧传感器设置在第一催化剂的下游和第二催化剂的上游，并且第三氧传感器设置在第二催化剂的下游。为第三氧传感器提供对应于排气中所需水平的一氧化二氮和烃的目标电压。该目标电压基于发动机RPM和MAP。发动机控制器将目标电压与通过感测第二催化剂下游的氧浓度而产生的实际电压进行比较。基于该比较，获得目标电压与实际电压之间的误差值。该误差值被转换为第一氧传感器的目标电压。将感测第一催化剂上游氧的量的第一氧传感器产生的实际电压与从第三氧传感器得到的目标电压进行比较。使用目标电压和实际电压之间的差来调制发送到发动机的燃料喷射器的信号的脉冲宽度，使得由燃料喷射器输送的燃料量被修改。第二氧传感器产生对应于第二氧传感器感测第一催化剂下游和第二催化剂上游的氧气量的实际电压。将由第二氧传感器产生的实际电压的变化与由第一氧传感器产生的实际电压的变化进行比较。通过监测这些变化彼此相关的性质，可以确定第一催化剂的性能。

4. 发明授权

US06236930B1 Sensor output precision enhancement in an automotive control system 有权
标题翻译：汽车控制系统中的传感器输出精度提升
公开(公告)号：US06236930B1
公开(公告)日：2001-05-22
申请号：US09406591
申请日：1999-09-27
申请人： Bruce H. Teague , Kenneth P. DeGroot , Thomas A. Larson
发明人： Bruce H. Teague , Kenneth P. DeGroot , Thomas A. Larson
IPC分类号： F02D4114
CPC分类号： F02D41/28 , F02D41/1456 , F02D2041/285 , F02D2250/12 , F02D2250/14
摘要： The analog input of a sensor is connected to a 10-bit analog-to-digital converter. The converted is powered using a 5V supply. The A/D is interfaced with a microprocessor; however, only the least significant eight bits of the A/D output are connected to the microprocessor input. The microprocessor is used to adjust the fuel-air mixture used in engine combustion based on the output of the sensor. The use of the 10-bit A/D interfaced with only eight bits allows increased precision and increased computational speed. The increased precision allows more accurate adjustment of the fuel-air mixture to enable the engine to run closer to its stoichiometric point.
摘要翻译：传感器的模拟输入连接到10位模数转换器。转换器使用5V电源供电。 A / D与微处理器接口; 然而，只有A / D输出的最低有效8位连接到微处理器输入。微处理器用于根据传感器的输出调节发动机燃烧中使用的燃油混合气。使用仅8位接口的10位A / D可以提高精度并提高计算速度。增加的精度允许更准确地调节燃料 - 空气混合物，使发动机能够更接近化学计量点。

5. 发明授权

US06173698B1 Closed loop exhaust gas sensor fuel control audited by dynamic crankshaft measurements 有权
标题翻译：闭环排气传感器燃油控制由动态曲轴测量审核
公开(公告)号：US06173698B1
公开(公告)日：2001-01-16
申请号：US09442252
申请日：1999-11-17
申请人： Kenneth P. DeGroot , Bruce H. Teague , Jonathan F. Rose
发明人： Kenneth P. DeGroot , Bruce H. Teague , Jonathan F. Rose
IPC分类号： F02D4114
CPC分类号： F02D41/1498 , F02D2041/1409 , F02D2200/1012 , F02D2200/1015
摘要： A methodology of computing a combustion stability value and using the combustion stability value to control engine operation is provided. The combustion stability value is determined by monitoring engine operation. The combustion stability value is compared to an expected combustion stability value. Where the combustion stability value is greater than the expected combustion stability value, combustion of the internal combustion engine is controlled as a function of the combustion stability value. Where the combustion stability value is not greater than the expected combustion stability value, combustion of the internal combustion engine is controlled as a function of an O2 sensor value. In either case, engine control is accomplished by modifying a target fuel injection value.
摘要翻译：提供了计算燃烧稳定性值并使用燃烧稳定性值来控制发动机运转的方法。燃烧稳定性值通过监控发动机运转来确定。将燃烧稳定性值与预期的燃烧稳定性值进行比较。当燃烧稳定性值大于预期的燃烧稳定性值时，内燃机的燃烧作为燃烧稳定性值的函数被控制。在燃烧稳定性值不大于预期燃烧稳定性值的情况下，内燃机的燃烧作为O2传感器值的函数被控制。在任一情况下，通过修改目标燃料喷射值来实现发动机控制。

6. 发明授权

US06085734A Fuel multiplier transfer from dynamic crankshaft fueling control to oxygen sensor operation 有权
标题翻译：燃油倍增器从动态曲轴加油控制转移到氧气传感器运行
公开(公告)号：US06085734A
公开(公告)日：2000-07-11
申请号：US211939
申请日：1998-12-15
申请人： Kenneth P. DeGroot , Bruce H. Teague , Gregory T. Weber , Jeremy M. Smith
发明人： Kenneth P. DeGroot , Bruce H. Teague , Gregory T. Weber , Jeremy M. Smith
IPC分类号： F02D41/14
CPC分类号： F02D41/1498 , F02D41/1479 , F02D2200/1015 , F02D41/1456
摘要： A method is provided for controlling the delivery of fuel to an engine of an automotive vehicle equipped with a dynamic crankshaft fuel control system and an oxygen sensor feedback based fuel control system. The method includes determining an averaged combustion metric from the dynamic crankshaft fuel control system. The combustion metric is compared to an allowable engine roughness value and a dynamic crankshaft fuel control fuel multiplier is adjusted based on the comparison via a proportional-integral-derivative control calculation. Thereafter, the integral term of the dynamic crankshaft fuel control system's proportional-integral-derivative control calculation is stored. If it is time to switch fuel control from the dynamic crankshaft fuel control system to the oxygen sensor feedback fuel control system, the stored integral term of the dynamic crankshaft fuel control system's fueling multiplier is transferred to the proportional-integral-derivative calculation of the oxygen sensor feedback fuel control system. As such, the last integral term used in determining the fuel multiplier of the dynamic crankshaft fuel control system is used as the first integral term determining the fuel multiplier of in the oxygen sensor feedback fuel control system. As such, the transition from one fuel control system to the other is smoothed.
摘要翻译：提供了一种用于控制燃料输送到配备有动态曲轴燃料控制系统和基于氧传感器反馈的燃料控制系统的机动车辆的发动机的方法。该方法包括从动态曲轴燃料控制系统确定平均燃烧度量。将燃烧度与允许的发动机粗糙度值进行比较，并且通过比例积分微分控制计算基于比较来调整动态曲轴燃料控制燃料倍增器。此后，存储动态曲轴燃料控制系统的比例 - 积分 - 微分控制计算的积分项。如果现在是将燃料控制从动态曲轴燃料控制系统切换到氧传感器反馈燃料控制系统的时候，动态曲轴燃料控制系统的加油乘数的存储积分项被转移到氧的比例积分微分计算传感器反馈燃油控制系统。因此，用于确定动态曲轴燃料控制系统的燃料倍增器的最后一个整数项用作确定氧传感器反馈燃料控制系统中的燃料倍增器的第一积分项。因此，从一个燃料控制系统到另一个燃料控制系统的过渡是平滑的。

7. 发明授权

US5809969A Method for processing crankshaft speed fluctuations for control applications 失效
标题翻译：用于处理控制应用的曲轴转速波动的方法
公开(公告)号：US5809969A
公开(公告)日：1998-09-22
申请号：US901859
申请日：1997-07-29
申请人： John Fiaschetti , Kenneth P. DeGroot , Mark S. Borland , Gregory T. Weber
发明人： John Fiaschetti , Kenneth P. DeGroot , Mark S. Borland , Gregory T. Weber
IPC分类号： F02D41/00 , F02D41/06 , F02D41/14 , F02D41/24 , F02D41/34 , F02D41/04
CPC分类号： F02D41/008 , F02D41/064 , F02D41/1498 , F02D41/2451 , F02D41/2454 , F02D2041/1409 , F02D2041/1432 , F02D2200/1015 , F02D2250/21 , F02D41/0097
摘要： A methodology of computing a learned combustion stability value and applying the learned combustion stability value to control engine operation is provided. Engine speed is sensed for each expected firing of individual cylinders of the engine. The difference in engine speed for a selected cylinder firing and a cylinder firing occurring two cylinder firings earlier is determined to provide an expected acceleration value. The difference between successive expected acceleration values is computed. A learned combustion related value is determined as a function of the difference in the successive learned acceleration values and is an indication of engine roughness. The operation of the engine is controlled as a function of the learned combustion related value. The learned combustion stability value is advantageously employed so as to modify the fuel injection to an internal combustion engine, especially following a cold engine start so as to reduce hydrocarbon emissions. This is accomplished by modifying a program target fuel injection value as a function of the learned combustion related value so as to reduce the fuel injected into the engine by fuel injectors.
摘要翻译：提供了一种计算学习的燃烧稳定性值并应用学习的燃烧稳定性值来控制发动机操作的方法。针对发动机的各个气缸的每个预期的发射感测发动机速度。确定所选择的气缸点火和发生两缸发动的气缸点火的发动机速度差异以提供预期的加速度值。计算连续预期加速度值之间的差异。学习的燃烧相关值被确定为连续学习加速度值中的差的函数，并且是发动机粗糙度的指示。发动机的操作作为燃烧相关值的函数进行控制。有利地采用学习的燃烧稳定性值，以便改变对内燃机的燃料喷射，特别是在冷发动机启动之后，以减少碳氢化合物排放。这是通过根据学习的燃烧相关值修改程序目标燃料喷射值来实现的，以便减少由燃料喷射器喷射到发动机中的燃料。

8. 发明授权

US06357431B1 Wave form fuel/air sensor target voltage 有权
标题翻译：波形燃料/空气传感器目标电压
公开(公告)号：US06357431B1
公开(公告)日：2002-03-19
申请号：US09574537
申请日：2000-05-18
申请人： Kenneth P DeGroot , Yi Cheng , Edward M Vuylsteke , Timothy A Coatesworth , Jonathan F Rose , Bruce H Teague , Michael J Reale
发明人： Kenneth P DeGroot , Yi Cheng , Edward M Vuylsteke , Timothy A Coatesworth , Jonathan F Rose , Bruce H Teague , Michael J Reale
IPC分类号： F02D4100
CPC分类号： F02D41/1408 , F02D41/0235 , F02D41/1441 , F02D41/1454 , F02D41/1456
摘要： A method of determining a goal voltage for a fuel/air sensor of an engine electronic fuel injection system includes the steps of determining a goal fuel/air sensor voltage, superimposing a wave form forcing function to the fuel/air sensor voltage for providing a goal fuel/air sensor voltage having a wave form pattern and controlling the engine to operate according to the goal fuel/air sensor voltage. The wave form forcing function provides the required fuel/air perturbations that are required to retain proper oxygen storage of the catalyst to maintain high three-way conversion efficiency.
摘要翻译：确定发动机电子燃料喷射系统的燃料/空气传感器的目标电压的方法包括以下步骤：确定目标燃料/空气传感器电压，将波形强制功能叠加到燃料/空气传感器电压以提供目标燃料/空气传感器电压具有波形图案，并且控制发动机根据目标燃料/空气传感器电压进行操作。波形强制功能提供所需的燃料/空气扰动，以保持催化剂的适当的氧气储存以保持高的三向转换效率。

9. 发明授权

US5544640A System and method for heating an oxygen sensor via multiple heating elements 失效
标题翻译：通过多个加热元件加热氧传感器的系统和方法
公开(公告)号：US5544640A
公开(公告)日：1996-08-13
申请号：US498270
申请日：1995-07-03
申请人： Christopher P. Thomas , Timothy A. Coatesworth , Kenneth P. DeGroot , Jeffery C. Ehlers , Mark E. McMackin
发明人： Christopher P. Thomas , Timothy A. Coatesworth , Kenneth P. DeGroot , Jeffery C. Ehlers , Mark E. McMackin
IPC分类号： F02D41/14 , G01N27/406 , G01N27/416
CPC分类号： G01N27/4067 , F02D41/1494
摘要： A circuit and method are provided for heating a dual heater oxygen sensor. One resistance element is of relatively low resistance such that the oxygen sensor is heated quickly and the other element is of relatively high resistance such that the oxygen sensor is heated and maintained at an optimal operating temperature. The circuit and associated method turn on a low resistance start heater that is in communication with the oxygen sensor given start-up conditions. Once the oxygen sensor has reached an operating temperature range a high resistance operating temperature heater is turned on and the start heater is turned off.
摘要翻译：提供了用于加热双加热器氧传感器的电路和方法。一个电阻元件具有相对低的电阻，使得氧传感器被快速加热，另一个元件具有相对高的电阻，使得氧传感器被加热并保持在最佳工作温度。电路和相关方法打开一个低电阻启动加热器，该加热器在给定启动条件下与氧传感器连通。一旦氧传感器达到工作温度范围，高电阻工作温度加热器就会打开，启动加热器关闭。

10. 发明授权

US09321450B2 System and method for processing engine roughness for cold start fuel control via electric motor 有权
标题翻译：用于通过电动机控制冷启动燃料的发动机粗糙度的系统和方法
公开(公告)号：US09321450B2
公开(公告)日：2016-04-26
申请号：US14192196
申请日：2014-02-27
申请人： Kenneth P DeGroot , Sashidhar Velnati , Timothy A Coatesworth , Mengyang Zhang , Scott A Reynolds
发明人： Kenneth P DeGroot , Sashidhar Velnati , Timothy A Coatesworth , Mengyang Zhang , Scott A Reynolds
IPC分类号： B60W20/00 , B60W10/08 , B60W10/06 , B60K6/48 , F02D33/00 , F02D41/14 , F02D41/34
CPC分类号： B60W20/10 , B60K6/48 , B60K2006/4825 , B60W10/06 , B60W10/08 , B60W20/50 , B60W2510/081 , B60W2510/083 , B60W2710/0627 , F02D33/003 , F02D41/1498 , F02D41/34 , F02D2200/021 , F02D2200/0406 , F02D2200/101 , F02D2250/24 , Y02T10/44 , Y02T10/6221 , Y02T10/6252 , Y02T10/6286 , Y10S903/93
摘要： A system and method for controlling an engine in a hybrid vehicle based on the use of a calculated combustion stability value to modify a pulsewidth signal to fuel injectors of the engine to reduce hydrocarbon emissions, especially following an engine start. The calculated combustion stability value is determined as a function of a torque signal obtained from an electric motor of the hybrid vehicle.
摘要翻译：一种用于基于使用计算的燃烧稳定性值来控制混合动力车辆中的发动机的系统和方法，以将脉冲宽度信号修改为发动机的燃料喷射器，以减少碳氢化合物排放，特别是在发动机起动之后。根据从混合动力车辆的电动机获得的转矩信号，确定计算出的燃烧稳定性值。

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