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1. 发明授权

US06755078B2 Methods and apparatus for estimating the temperature of an exhaust gas recirculation valve coil 失效
标题翻译：用于估计废气再循环阀线圈的温度的方法和装置
公开(公告)号：US06755078B2
公开(公告)日：2004-06-29
申请号：US10355898
申请日：2003-01-31
申请人： Claudio A. Hernandez , Daniel G. Brennan , Gregory J. York , Donald W. Harnack
发明人： Claudio A. Hernandez , Daniel G. Brennan , Gregory J. York , Donald W. Harnack
IPC分类号： G01M1900
CPC分类号： G01K7/42 , F02D41/0072 , F02D41/1447 , F02D2041/007 , F02D2041/2065 , G01M15/048
摘要： An exhaust gas recirculation (EGR) valve coil temperature is estimated non-intrusively using only existing sensors. In one embodiment an EGR valve coil temperature estimator running on a powertrain control module estimates the EGR valve coil temperature as a linear function of estimated charge temperature, inlet air temperature, coolant temperature, and vehicle speed. Coefficients of the mathematical function, which describe the degree of association between the inputs and EGR valve coil temperature, are calculated by measuring the actual EGR valve coil temperature over wide operating conditions. The powertrain control module uses the EGR valve temperature estimated in this manner to vary the drive signal to the EGR valve coil to open the EGR valve a desired amount.
摘要翻译：排气再循环（EGR）阀线圈温度仅使用现有传感器非侵入性地估计。在一个实施例中，在动力系控制模块上运行的EGR阀线圈温度估计器将EGR阀线圈温度估计为估计的充气温度，进气温度，冷却剂温度和车速的线性函数。描述输入与EGR阀线圈温度之间的关联程度的数学函数的系数是通过在宽工作条件下测量实际的EGR阀线圈温度来计算的。动力系控制模块使用以这种方式估计的EGR阀温度来改变对EGR阀线圈的驱动信号，以将EGR阀打开所需的量。

2. 发明授权

US07222607B2 DSP-based engine knock detection including knock sensor and circuit diagnostics 有权
公开(公告)号：US07222607B2
公开(公告)日：2007-05-29
申请号：US11198219
申请日：2005-08-05
申请人： Claudio A. Hernandez
发明人： Claudio A. Hernandez
IPC分类号： F02P5/00 , F02P5/06
CPC分类号： F02P5/1526 , F02D35/027 , F02P5/152 , Y02T10/46
摘要： A knock detection system for a spark-ignition engine includes a knock sensor that is responsive to vibration of the engine and that generates a knock signal. A first module calculates a knock energy based on the knock signal and a second module calculates a knock intensity based on the knock energy. A third module regulates a spark timing of the engine based on the knock intensity.

3. 发明授权

US07299687B2 Rough road detection system 有权
标题翻译：粗路检测系统
公开(公告)号：US07299687B2
公开(公告)日：2007-11-27
申请号：US11234008
申请日：2005-09-23
申请人： Claudio A. Hernandez
发明人： Claudio A. Hernandez
IPC分类号： G01M15/00
CPC分类号： F02D41/0097 , B60W50/0205 , B60W2030/206 , B60W2040/1392 , B60W2050/0057 , B60W2050/021 , B60W2510/0638 , B60W2550/147 , F02D41/1498 , F02D2041/1432 , F02D2041/288 , F02D2200/1012 , F02D2200/1015 , F02D2200/702 , G01M15/11
摘要： A rough road detection system for a vehicle according to the present invention includes a frequency domain module, an engine misfire module, and a rough road module. The frequency domain module converts a vector signal into a frequency domain signal. The engine misfire module determines whether an engine misfires based on the frequency domain signal. The rough road detection module determines whether the vehicle is driving on a rough road based on the frequency domain signal.
摘要翻译：根据本发明的用于车辆的粗糙道路检测系统包括频域模块，发动机失火模块和粗糙道路模块。频域模块将矢量信号转换为频域信号。发动机失火模块基于频域信号来确定发动机是否发动机失火。粗糙道路检测模块基于频域信号来确定车辆是否在粗糙的道路上行驶。

4. 发明授权

US06622548B1 Methods and apparatus for estimating gas temperatures within a vehicle engine 有权
标题翻译：用于估计车辆发动机内的气体温度的方法和装置
公开(公告)号：US06622548B1
公开(公告)日：2003-09-23
申请号：US10166807
申请日：2002-06-11
申请人： Claudio A. Hernandez
发明人： Claudio A. Hernandez
IPC分类号： G01M1900
CPC分类号： G01K7/42 , F02D41/0072 , F02D41/1447 , F02D2041/007 , F02D2041/2065 , G01M15/048
摘要： Method and apparatus are provided for estimating gas temperatures of a vehicle engine. The method comprises receiving a velocity of the vehicle and an air mass flow rate and estimating an exhaust gas temperature based at least upon the velocity of the vehicle and the air mass flow rate. The method also comprises receiving an EGR mass flow rate and estimating an EGR gas temperature at an EGR valve based at least upon the exhaust gas temperature and the EGR mass flow rate. In addition, the method comprises estimating an EGR gas temperature at a throttle body based at least upon the exhaust gas temperature and the EGR mass flow rate. Furthermore, the method comprises estimating a charge temperature based at least upon the EGR gas temperature at the throttle body, the velocity of the vehicle, and the EGR mass flow rate.
摘要翻译：提供了用于估计车辆发动机的气体温度的方法和装置。该方法包括接收车辆的速度和空气质量流量，并且至少基于车辆的速度和空气质量流率来估计废气温度。该方法还包括至少基于排气温度和EGR质量流率接收EGR质量流量并估计EGR阀处的EGR气体温度。此外，该方法包括至少基于排气温度和EGR质量流量来估计节气门体的EGR气体温度。此外，该方法包括至少基于节气门体上的EGR气体温度，车辆速度和EGR质量流量来估计充电温度。

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