专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07171301B2 Method and system for detecting an absolute pressure sensor malfunction 有权
标题翻译：用于检测绝对压力传感器故障的方法和系统
公开(公告)号：US07171301B2
公开(公告)日：2007-01-30
申请号：US10778875
申请日：2004-02-13
申请人： Songping Yu , Paul A. Pietrzyk , Gary L. Danhoff
发明人： Songping Yu , Paul A. Pietrzyk , Gary L. Danhoff
IPC分类号： G06F7/00
CPC分类号： F02D41/221 , F02D2200/0406 , F02D2200/0408 , Y02T10/40
摘要： A method for detecting a malfunction in a manifold absolute pressure sensor used in an internal combustion engine. The method includes obtaining a plurality of samples from the manifold absolute pressure sensor. A plurality of samples is obtained from a mass airflow sensor for measuring air flow to the engine. A plurality of inferred manifold absolute pressures is estimated from the plurality of samples obtained from the mass airflow sensor. A linear functional relationship is determined between manifold absolute pressure and inferred absolute pressure from the obtained samples of the manifold pressure sensor and the estimated inferred manifold absolute pressures, such functional relationship having an offset term and a slope. A comparison is made between the determined offset term and the determined slope with a predetermined offset threshold and a predetermined slope threshold level, respectively.
摘要翻译：一种用于检测在内燃机中使用的歧管绝对压力传感器的故障的方法。该方法包括从歧管绝对压力传感器获得多个样本。从用于测量到发动机的空气流的质量气流传感器获得多个样品。从从质量气流传感器获得的多个样本估计多个推断的歧管绝对压力。从所获得的歧管压力传感器的样本和估计的推断的歧管绝对压力之间确定歧管绝对压力和推定的绝对压力之间的线性函数关系，这种函数关系具有偏移项和斜率。在确定的偏移项和确定的斜率之间分别以预定的偏移阈值和预定的斜率阈值水平进行比较。

2. 发明授权

US06851304B2 Air estimation approach for internal combustion engine control 有权
标题翻译：内燃机控制的空气估计方法
公开(公告)号：US06851304B2
公开(公告)日：2005-02-08
申请号：US10352804
申请日：2003-01-28
申请人： Michael J. Cullen , Giuseppe D. Suffredini , Paul A. Pietrzyk , Jeffrey A. Doering , Aaron Schweizerhof , Mrdjan J. Jankovic
发明人： Michael J. Cullen , Giuseppe D. Suffredini , Paul A. Pietrzyk , Jeffrey A. Doering , Aaron Schweizerhof , Mrdjan J. Jankovic
IPC分类号： F02D41/18 , F02D41/20 , F02D41/22 , G01M19/00
CPC分类号： F02D41/182 , F02D41/1454 , F02D41/20 , F02D41/222 , F02D2200/0402 , F02D2200/0404 , F02D2200/0414 , F02D2200/602 , F02D2200/703
摘要： A method is described for estimating cylinder charge using either the throttle position or mass air flow sensor. The method saves calibration and development expenses by using the same manifold filling model approach regardless of which sensor, or combination of sensors, is used.
摘要翻译：描述了使用节气门位置或质量空气流量传感器来估计气缸充气的方法。该方法通过使用相同的歧管填充模型方法来节省校准和开发费用，而不管使用哪种传感器或传感器的组合。

3. 发明授权

US07600495B2 Method for controlling an engine having variable cam timing 有权
标题翻译：用于控制具有可变凸轮正时的发动机的方法
公开(公告)号：US07600495B2
公开(公告)日：2009-10-13
申请号：US11209452
申请日：2005-08-23
申请人： John E. Rollinger , Paul A. Pietrzyk , Michael Sweppy , Eric A. Luehrsen , Robert M. Grant
发明人： John E. Rollinger , Paul A. Pietrzyk , Michael Sweppy , Eric A. Luehrsen , Robert M. Grant
IPC分类号： F01L1/34
CPC分类号： F02D13/0219 , F01L2800/00 , F01L2800/12 , F02D41/009 , F02D41/222 , Y02T10/18
摘要： A method for operating an engine having a variable cam timing control system, for controlling a camshaft angle in such engine. The method includes deactivating the variable cam timing system and setting the camshaft angle to a predetermined angle for a predetermined duration after failure in a sensor used to control the variable cam timing system and then reactivating the variable cam timing system after such predetermined time. The deactivating continues during the predetermined duration in the presence of a subsequent failure of the sensor during the predetermined duration. The reactivating comprises driving the cam angle to a camshaft angle established by the variable cam timing system in a predetermined manner. The reactivating occurs over a predetermined reactivation time.
摘要翻译：一种用于操作具有可变凸轮正时控制系统的发动机的方法，用于控制这种发动机中的凸轮轴角度。该方法包括在用于控制可变凸轮定时系统的传感器故障之后，使可变凸轮定时系统停用并将凸轮轴角度设定为预定角度预定的持续时间，然后在这样的预定时间之后重新激活可变凸轮定时系统。在预定持续时间期间存在传感器的后续故障的预定持续时间期间，停用继续。重新启动包括以预定方式将凸轮角度驱动到由可变凸轮定时系统建立的凸轮轴角度。再次激活发生在预定的再激活时间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式