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

US07800379B2 Fuel sensor 有权
标题翻译：燃油传感器
公开(公告)号：US07800379B2
公开(公告)日：2010-09-21
申请号：US12326332
申请日：2008-12-02
申请人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez , Cecilia Hernandez , Daniel J. Moreno , Mark Shost
发明人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez , Cecilia Hernandez , Daniel J. Moreno , Mark Shost
IPC分类号： G01R27/26
CPC分类号： G01N33/2852 , G01N27/226
摘要： A sensing apparatus for determining a property of a fuel such as a gasoline and ethanol blend known as flex fuel includes an acetal plastic tube with an inlet, an outlet and a fuel passage in between. One property of the fuel is a dielectric constant. A pair of sensing plates are placed on opposite sides of the tube leaving the fuel passage unobstructed. A processing circuit on a printed circuit board (PCB) is located near to and is connected with the sensing plates. The circuit applies an excitation signal, senses a capacitance, and generates an output signal indicative of a property of the fuel. The sensed capacitance will increase with increasing concentration of ethanol in the fuel flowing through the passage. A shield for reducing EMI surrounds and encloses the sensing plates and the PCB. An interface connector allows the sensing apparatus to output the capacitance indicative signal to an engine controller or the like.
摘要翻译：用于确定燃料（诸如称为柔性燃料的汽油和乙醇混合物）的燃料的特性的感测装置包括缩醛塑料管，其间具有入口，出口和燃料通道。燃料的一个特性是介电常数。一对感测板放置在管的相对侧上，使燃料通道畅通无阻。印刷电路板（PCB）上的处理电路位于感测板附近并与传感板连接。电路施加激励信号，感测电容，并产生指示燃料性质的输出信号。感测到的电容将随着流经通道的燃料中乙醇浓度的增加而增加。用于降低EMI的屏蔽包围传感板和PCB。接口连接器允许感测装置将电容指示信号输出到发动机控制器等。

2. 发明申请

US20090153154A1 FUEL SENSOR 有权
标题翻译：燃油传感器
公开(公告)号：US20090153154A1
公开(公告)日：2009-06-18
申请号：US12326332
申请日：2008-12-02
申请人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez , Cecilia Hernandez , Daniel J. Moreno , Mark Shost
发明人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez , Cecilia Hernandez , Daniel J. Moreno , Mark Shost
IPC分类号： G01R27/08
CPC分类号： G01N33/2852 , G01N27/226
摘要： A sensing apparatus for determining a property of a fuel such as a gasoline and ethanol blend known as flex fuel includes an acetal plastic tube with an inlet, an outlet and a fuel passage in between. One property of the fuel is a dielectric constant. A pair of sensing plates are placed on opposite sides of the tube leaving the fuel passage unobstructed. A processing circuit on a printed circuit board (PCB) is located near to and is connected with the sensing plates. The circuit applies an excitation signal, senses a capacitance, and generates an output signal indicative of a property of the fuel. The sensed capacitance will increase with increasing concentration of ethanol in the fuel flowing through the passage. A shield for reducing EMI surrounds and encloses the sensing plates and the PCB. An interface connector allows the sensing apparatus to output the capacitance indicative signal to an engine controller or the like.
摘要翻译：用于确定燃料（诸如称为柔性燃料的汽油和乙醇混合物）的燃料的特性的感测装置包括缩醛塑料管，其间具有入口，出口和燃料通道。燃料的一个特性是介电常数。一对感测板放置在管的相对侧上，使燃料通道畅通无阻。印刷电路板（PCB）上的处理电路位于感测板附近并与感测板连接。电路施加激励信号，感测电容，并产生指示燃料性质的输出信号。感测到的电容将随着流经通道的燃料中乙醇浓度的增加而增加。用于降低EMI的屏蔽包围传感板和PCB。接口连接器允许感测装置将电容指示信号输出到发动机控制器等。

3. 发明申请

US20090153149A1 OBSTRUCTIONLESS INLINE FLEX FUEL SENSOR 审中-公开
标题翻译：无法在线FLEX燃油传感器
公开(公告)号：US20090153149A1
公开(公告)日：2009-06-18
申请号：US11954824
申请日：2007-12-12
申请人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez
发明人： Norberto Hernandez , Jesus Carmona , Esau Aguinaga , Manuel S. Sanchez
IPC分类号： G01R27/26
CPC分类号： G01N33/2852 , G01N27/226
摘要： A sensing apparatus for determining a property of a fuel such as a gasoline and ethanol blend known as flex fuel includes an acetal plastic tube with an inlet, an outlet and a fuel passage in between. One property is a dielectric constant. A pair of semi-circular shaped sensing plates are placed around the tube in concentric relation therewith, leaving the fuel passage unobstructed. A processing circuit on a printed circuit board (PCB) is located near and connected with the sensing plates. The circuit applies an excitation signal, senses a capacitance, and generates an output signal indicative of a property of the fuel. A shield for reducing EMI surrounds and encloses the sensing plates and the PCB. The sensed capacitance will increase with increasing concentration of ethanol in the fuel flowing through the passage. An interface connector allows the sensing apparatus to output the indicative signal to an engine controller.
摘要翻译：用于确定燃料（诸如称为柔性燃料的汽油和乙醇混合物）的燃料的特性的感测装置包括缩醛塑料管，其间具有入口，出口和燃料通道。一种性质是介电常数。一对半圆形检测板与管子同心地放置在管周围，使燃料通道畅通无阻。印刷电路板（PCB）上的处理电路位于感测板附近并与感测板连接。电路施加激励信号，感测电容，并产生指示燃料性质的输出信号。用于降低EMI的屏蔽包围传感板和PCB。感测到的电容将随着流经通道的燃料中乙醇浓度的增加而增加。接口连接器允许感测装置将指示信号输出到发动机控制器。

4. 发明申请

US20100145640A1 SYSTEM AND METHOD FOR ELECTRICAL PARAMETER ESTIMATION 审中-公开
标题翻译：电气参数估计系统与方法
公开(公告)号：US20100145640A1
公开(公告)日：2010-06-10
申请号：US12331748
申请日：2008-12-10
申请人： Esau Aguinaga , Norberto Hernandez , Jesus Carmona
发明人： Esau Aguinaga , Norberto Hernandez , Jesus Carmona
IPC分类号： G01R27/26
CPC分类号： G01R27/2605 , G01R27/14 , G01R27/2611
摘要： A method is provided for estimating an electrical parameter of a circuit-under-test (e.g., resistance, capacitance and/or inductance). The method acquires samples during a plurality of charging cycles rather than during just one, which allows an extended overall time period to acquire such samples. The first step involves defining a major sampling period having a plurality of minor sampling periods. A number of steps are performed for each minor sampling period: applying an excitation signal to the circuit-under-test to produce a respective induced, response signal and acquiring a respective sample of the induced signal at a respective predetermined deferral time. In an embodiment where the circuit-under-test includes an unknown capacitance, the excitation signal may be a unit step while an increase in the induced signal is governed by a charging time constant, which itself is indicative of the unknown capacitive. The electrical parameter may be determined based on the acquired samples, which collectively constitute a composite response. The composite response is processed, for example, by fitting it to a normalized capacitive charging curve, to ascertain an estimate of the unknown capacitive.
摘要翻译：提供了一种用于估计被测电路（例如电阻，电容和/或电感）的电参数的方法。该方法在多个充电循环期间而不是仅在一个充电循环期间获取采样，这允许延长的整个时间周期来获取这样的采样。第一步涉及定义具有多个次要采样周期的主要采样周期。对于每个次要采样周期执行多个步骤：将激励信号施加到被测电路以产生相应的感应响应信号，并在相应的预定延迟时间获取感应信号的相应采样。在被测电路包括未知电容的实施例中，激励信号可以是单位阶跃，而感应信号的增加由充电时间常数决定，充电时间常数本身表示未知电容。可以基于获取的样本来确定电参数，这些样本共同构成复合响应。复合响应例如通过将其拟合到归一化的容性充电曲线来进行处理，以确定未知电容的估计。

5. 发明申请

US20100132431A1 METHOD FOR TESTING AND CALIBRATING A CAPACITIVE FLEX FUEL SENSOR 审中-公开
标题翻译：用于测试和校准电容式FLEX燃料传感器的方法
公开(公告)号：US20100132431A1
公开(公告)日：2010-06-03
申请号：US12326416
申请日：2008-12-02
申请人： Norberto Hernandez , Carlos A. Urquidi , Esau Aguinaga
发明人： Norberto Hernandez , Carlos A. Urquidi , Esau Aguinaga
IPC分类号： G01N33/22
CPC分类号： G01N33/2852
摘要： A method for calibrating a flex fuel sensing apparatus having a fuel passage involves the use of a generally solid test blank having a size and shape configured to match that of the fuel passage. The test blank comprises material having a known, predetermined dielectric constant. The test blank is inserted into the fuel passage where the dielectric constant of the test blank is operative to simulate the presence of various gasoline and ethanol fuel blends. The test blank may also comprise a deformable/compressible solid such as rubber where the test blank is compressed during calibration to eliminate air gaps or the like, improving accuracy. The use of the solid test blank reduces complexity compared to using actual gasoline/ethanol blends for calibration as well as reduces post-calibration cleanup.
摘要翻译：用于校准具有燃料通道的柔性燃料感测装置的方法涉及使用具有被配置成与燃料通道的尺寸和形状相匹配的尺寸和形状的通常为实心的测试坯料。测试空白包括具有已知的预定介电常数的材料。测试空白被插入到燃料通道中，其中测试空白的介电常数可操作以模拟各种汽油和乙醇燃料混合物的存在。测试坯料还可以包括可变形/可压缩固体，例如橡胶，其中在校准期间测试坯料被压缩以消除气隙等，从而提高精度。与使用实际的汽油/乙醇混合物进行校准相比，使用固体试验片降低了复杂性，并减少了后校准清洗。

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