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1. 发明专利

JP2006307863A Engine control unit 有权
标题翻译：发动机控制单元
公开(公告)号：JP2006307863A
公开(公告)日：2006-11-09
申请号：JP2006160867
申请日：2006-06-09
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： IGARASHI SHINYA , SUGAYA ATSUSHI , MINAMITANI RINTARO , NAKADA KEIICHI , WATANABE IZUMI
IPC分类号： F02D45/00 , G01F1/68 , G01F1/698
摘要： PROBLEM TO BE SOLVED: To provide an air-flow rate measuring device which minimizes the influence of matters attaching onto an exothermic resistor or the like, during stoppage of an engine so as to improve the measurement accuracy. SOLUTION: A flow rate of air sucked into the internal combustion engine is detected by using the exothermic resistor 1. After the internal combustion engine is stopped, a power management circuit 4 keeps the temperature of the exothermic resistor 1, at a level equal to or higher than the same during driving the internal combustion engine, until the temperatures of devices mounted on the internal combustion engine and an intake air system thereof become equal to or lower than the temperature, at which a volatile gas, such as oil vapor, is generated. The power management circuit 4 detects the air temperature by a heat-sensitive resistor 2 for detecting the temperature of the air sucked into the internal combustion engine. Based on the detected temperature, the power management circuit also keeps the temperature of the exothermic resistor at a level equal to or higher than the same during driving the internal combustion engine, after the stoppage of the internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种使发动机停止期间附着在放热电阻器等上的物质的影响最小化的空气流量测量装置，以提高测量精度。解决方案：通过使用放热电阻器1检测吸入内燃机的空气的流量。在内燃机停止之后，电力管理电路4将放热电阻器1的温度保持在一定水平在内燃机的驱动期间等于或高于相同，直到安装在内燃机上的装置及其进气系统的温度变得等于或低于挥发性气体，例如油蒸汽，被生成。电力管理电路4通过用于检测吸入内燃机的空气的温度的热敏电阻器2来检测空气温度。基于检测到的温度，在内燃机停止之后，功率管理电路还在驱动内燃机期间将放热电阻器的温度保持在等于或高于其的水平。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2006283765A Physical quantity detection device for engine 有权
标题翻译：发动机物理量检测装置
公开(公告)号：JP2006283765A
公开(公告)日：2006-10-19
申请号：JP2006129008
申请日：2006-05-08
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： WATANABE IZUMI , SAITO TADAO , OZAWA MASAYUKI , NAKADA KEIICHI , KAMIYAMA KEI
IPC分类号： F02D35/00 , F01N13/00 , F01N99/00 , G01F1/68 , G01F1/684 , G01L23/24 , G12B17/06
摘要： PROBLEM TO BE SOLVED: To prevent a deterioration in the precision of measurement of a sensor in hostile surroundings in terms of heat within an engine room of an automobile. SOLUTION: A structural member is provided which has low thermal conductivity and a low rate of radiation by using a resin member coated with metal for the structural member such as a subpassage 11a for mounting a detection element for detecting the temperature of suction air, a housing 15 or the like. Then a temperature rise caused by thermal conduction and a temperature rise caused by radiation heat can be reduced simultaneously. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了防止在汽车的发动机室内的热量方面的恶劣环境中的传感器的测量精度的劣化。解决方案：通过使用涂覆有金属的树脂构件来提供具有低导热性和低辐射率的结构构件，用于诸如用于检测吸入空气温度的检测元件的诸如子通路11a的结构构件，壳体15等。然后，可以同时降低由热传导引起的温度上升和由辐射热引起的温度升高。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006258677A Device for measuring physical quantity of engine 有权
标题翻译：用于测量发动机物理量的装置
公开(公告)号：JP2006258677A
公开(公告)日：2006-09-28
申请号：JP2005078381
申请日：2005-03-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE IZUMI , HORIE JUNICHI , NAKADA KEIICHI , HANZAWA KEIJI , SATO AKIRA
IPC分类号： G01F1/68 , F02D35/00
摘要： PROBLEM TO BE SOLVED: To prevent corrosion of a conductor, having Ag as a main material which is used for a circuit substrate of a device for measuring physical quantity, attached to suction pipes or exhaust pipes.
SOLUTION: For the circuit substrate, a multilayered substrate stacked with a plurality of substrates is used. For its through holes and installed conductors, a metal having Ag as the main material is used. On the through hole, formed on the substrate positioning on the surface of the multilayer substrate, a solder paste is spread. By mounting electronic components, such as chip resistors, chip capacitors, etc. on the above, so as not to make the wiring pattern with Ag as the main material formed on the uppermost surface of a ceramic substrate, the cost is reduced and the corrosion resistivity is improved.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止附着在抽吸管或排气管上的Ag作为用于物理量测量装置的电路基板的主要材料的导体的腐蚀。解决方案：对于电路基板，使用堆叠有多个基板的多层基板。对于其通孔和安装的导体，使用具有Ag作为主要材料的金属。在定位在多层基板的表面上的基板上形成的通孔上，涂布焊膏。通过在上述方面安装诸如片状电阻器，片状电容器等的电子部件，以便不使形成在陶瓷基板的最上表面上的作为主要材料的Ag的布线图案成本降低，并且腐蚀电阻率提高。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004361271A Thermal type air flowmeter 审中-公开
公开(公告)号：JP2004361271A
公开(公告)日：2004-12-24
申请号：JP2003160704
申请日：2003-06-05
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： MATSUMOTO MASAHIRO , YAMADA MASAMICHI , WATANABE IZUMI , HANZAWA KEIJI , NAKADA KEIICHI
IPC分类号： G01F1/68 , G01F1/684 , G01F1/692 , G01F1/698
CPC分类号： G01F7/00 , G01F1/684 , G01F1/692 , G01F1/6986
摘要： PROBLEM TO BE SOLVED: To enhance sensitivity in air flow measurement, to reduce an electric power consumption for a heating element, and to widen a measuring range. SOLUTION: A heating resistor 4 is formed at an insulation film 6 in a heat insulating area 2 of a rectangular space constituted in a planar substrate (silicon substrate) 1, and two temperature measuring resistors are formed in an upstream and an downstream of the resistor 4. The heat insulating area 2 of the rectangular space is constituted to make lengths along an axial-direction of an air flow and a parallel side larger than that along a vertical side. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2003083788A Flow rate-measuring apparatus 有权
标题翻译：流量测量装置
公开(公告)号：JP2003083788A
公开(公告)日：2003-03-19
申请号：JP2001274402
申请日：2001-09-11
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： NAKADA KEIICHI , WATANABE IZUMI , HORIE JUNICHI , KAMIYAMA KEI , ONIKAWA HIROSHI , YAMADA MASAMICHI
IPC分类号： G01F1/00 , G01F1/684 , G01F5/00 , G01F15/12
CPC分类号： G01F1/684 , G01F1/6842 , G01F5/00 , G01F15/12
摘要： PROBLEM TO BE SOLVED: To provide a flow rate-measuring apparatus which does not damage a flow rate measurement element, is highly reliable even after long use, and has improved pulsating characteristics even in a state where dust and moisture are present in an aspiration pipe. SOLUTION: An introduction means is provided near the outlet of a sub passage in the flow rate-measuring apparatus, where the introduction means introduces the flow in the opposite direction of the main passage into the sub passage via the outlet.
摘要翻译：要解决的问题：为了提供不损害流量测量元件的流量测量装置，即使长时间使用也是高度可靠的，并且即使在吸入管中存在灰尘和湿气的状态下也具有改善的脉动特性。解决方案：在流量测量装置中的副通道出口附近设置引入装置，其中引入装置将主流道的相反方向的流动经由出口引入副通道。

6. 发明专利

JP2007017352A Thermal flow measuring device 有权
标题翻译：热流量测量装置
公开(公告)号：JP2007017352A
公开(公告)日：2007-01-25
申请号：JP2005200747
申请日：2005-07-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE IZUMI , HORIE JUNICHI , NAKADA KEIICHI
IPC分类号： G01F1/692
CPC分类号： G01F1/692 , G01F1/6845 , G01F1/698
摘要： PROBLEM TO BE SOLVED: To provide a thermal flow measuring device capable of reducing fouling of a heating resistor, and reducing a measurement error caused by deterioration with age, without complicating the structure of a circuit or a sensor. SOLUTION: A thin-walled part 7 is formed on a semiconductor substrate 2, and the heating resistor 10 and a part of a thermosensitive resistor 13 are arranged on the thin-walled part 7. The thermosensitive resistor 13, which is a resistance positioned diagonally to the heating resistor 10 in a bridge circuit, is arranged on a position thermally-influenced by the heating resistor 10. Hereby, flow dependency can be imparted to a heating temperature of the heating resistor 10, and the measurement error caused by deterioration with age can be reduced. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够减少加热电阻器的结垢的热流量测量装置，并且减少由于老化而劣化引起的测量误差，而不会使电路或传感器的结构复杂化。解决方案：在半导体衬底2上形成薄壁部分7，并且将加热电阻器10和热敏电阻器13的一部分布置在薄壁部分7上。热敏电阻器13是布置在由加热电阻器10受热影响的位置上。桥接电路中与加热电阻体10对角地布置的电阻被布置在加热电阻器10的热影响的位置上。由此，可以赋予加热电阻器10的加热温度以及由随着年龄的恶化可以减少。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006208112A Thermal flow measuring device 有权
标题翻译：热流量测量装置
公开(公告)号：JP2006208112A
公开(公告)日：2006-08-10
申请号：JP2005018815
申请日：2005-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MATSUMOTO MASAHIRO , YAMADA MASAMICHI , NAKANO HIROSHI , HANZAWA KEIJI , NAKADA KEIICHI
IPC分类号： G01F1/696 , G01F1/692
CPC分类号： G01F5/00 , G01F1/6845
摘要： PROBLEM TO BE SOLVED: To provide a thermal flow measuring device capable of inhibiting generation of flow detection error even if the pulsation of flow is generated by approximating the normal directional flow characteristics and the reverse directional characteristics of the temperature detector element in the thermal type flow meter of the temperature difference detection system in which the temperature detection elements are arranged in the asymmetric path. SOLUTION: The driving circuit of the thermal flow measuring device amplifies the voltage difference between the voltage of the connection point of the bridge circuit composed of the temperature detection resistors 15-18 and the temperature detecting resistor 14 and the connection point of the resistors 10 and 11 with the amplifier 9, drives the transistor 7 through the phase compensation circuit 1, and supplies current to the heater resistor 13. In the asymmetric flow path, the resistors 15 and 18 are arranged upstream side of the heater resistor 13 and the resistors 16 and 18 are arranged on its downstream side. and the resistors 16 and 17 are nearer to the heater resistor 13 than the resistors 15 and 18, wherein the detection temperature of resistors 16 and 17 are weighted for approximating the normal flow directional characteristics and reverse flow directional characteristics. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够抑制流量检测误差的产生的热流量测量装置，即使通过接近流量的正常方向流动特性和温度检测器元件的逆向特性而产生流动脉动其中温度检测元件布置在不对称路径中的温度差检测系统的热式流量计。解决方案：热流测量装置的驱动电路放大由温度检测电阻器15-18和温度检测电阻器14组成的桥接电路的连接点的电压之间的电压差和具有放大器9的电阻器10和11通过相位补偿电路1驱动晶体管7，并向加热电阻器13提供电流。在非对称流路中，电阻器15和18被布置在加热电阻器13的上游侧，电阻器16和18布置在其下游侧。并且电阻器16和17比电阻器15和18更靠近加热电阻器13，其中电阻器16和17的检测温度被加权以接近正常的流动方向特性和反向流动方向特性。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2003075222A Gas flowmeter and method of manufacturing the same 审中-公开
标题翻译：气体流量计及其制造方法
公开(公告)号：JP2003075222A
公开(公告)日：2003-03-12
申请号：JP2001267790
申请日：2001-09-04
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： YAMADA MASAMICHI , WATANABE IZUMI , HORIE JUNICHI , NAKADA KEIICHI
IPC分类号： G01F3/22 , G01F1/692 , H01L21/822 , H01L27/04 , H01L49/00
摘要： PROBLEM TO BE SOLVED: To realize a gas flowmeter whose reliability is high over a long period even when a gas to be measured is gases other than air. SOLUTION: A heating resistor 4 and resistance thermometer sensors 5a to 5d are formed of a polycrystal silicon semiconductor thin film. Then the gas to be measured is air, nitrogen gas, oxygen gas, carbon dioxide or vapor; and a heat-treatment annealing operation is executed to the resistor 4 and the sensors 5a to 5d by the gas to be measured, nitrogen, argon, helium, fluorine or the like. When the gas to be measured is hydrogen gas, utility gas, methane gas, propane gas or butane gas; the heat-treatment annealing operation is executed to the resistor 4 and sensors 5a to 5d. Consequently, a dangling bond to at least one component element of the gas to be measured can be formed in the grain boundary or the defect region of the semiconductor thin film, a stable dangling bond to the gas to be measured is formed in the grain boundary or the defect region of the semiconductor thin film even when a gas flow rate is measured for a long period with reference to the gas to be measured, and a resistance value is stabilized.
摘要翻译：要解决的问题：即使要测量的气体是除了空气之外的气体，也能实现长期可靠性高的气体流量计。解决方案：加热电阻器4和电阻温度计传感器5a至5d由多晶硅半导体薄膜形成。然后待测气体为空气，氮气，氧气，二氧化碳或蒸气; 通过待测气体，氮气，氩气，氦气，氟气等对电阻器4和传感器5a〜5d进行热处理退火操作。待测气体为氢气，有用气体，甲烷气，丙烷气或丁烷气; 对电阻器4和传感器5a〜5d执行热处理退火操作。因此，可以在半导体薄膜的晶界或缺陷区域中形成与被测量气体的至少一种成分元素的悬挂键，在晶界形成与待测气体的稳定的悬垂键或半导体薄膜的缺陷区域，即使当相对于被测量气体长时间测量气体流量时，电阻值稳定。

9. 发明专利

JP2006258455A Physical quantity sensor 有权
标题翻译：物理量传感器
公开(公告)号：JP2006258455A
公开(公告)日：2006-09-28
申请号：JP2005072818
申请日：2005-03-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKANO HIROSHI , MATSUMOTO MASAHIRO , YAMADA MASAMICHI , NAKADA KEIICHI , WATANABE IZUMI
IPC分类号： G01F1/692 , G01F1/698 , G01P15/12
CPC分类号： G01C9/00 , G01F1/6845 , G01F1/69 , G01P15/008
摘要： PROBLEM TO BE SOLVED: To provide a highly precise physical quantity sensor by reducing the resistance fluctuation caused by the stress as well as ensuring the reliability in strength. SOLUTION: When the parallel direction to the predetermined directional (e.g. max. stress application direction) stress σ, is defined as a lateral direction, and the perpendicular direction to that is defined as a longitudinal direction, the resistance bodies 7a, 7b, 8a and 8b are composed of the lateral directional resistance component Rl and the longitudinal directional resistance component Rt. When the ratio of piezo resistance coefficient πl which is the value when the stress σ of the substrate is added to the lateral resistance component Rl to the piezo resistance coefficient πt which is the value when the stress σ is added to the longitudinal resistance component Rt is πl:πt=-n:1 (n is integer), the resistance ratio of the longitudinal resistance component Rt to the lateral resistance component Rl is made to set approximately equal to the ratio of piezo resistance coefficients πl to πt. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过减少由应力引起的电阻波动以及确保强度的可靠性来提供高精度物理量传感器。解决方案：当将与预定方向（例如最大应力施加方向）应力σ的平行方向定义为横向方向时，将垂直方向定义为纵向方向时，电阻体7a，7b ，8a和8b由横向阻力分量R1和纵向阻力分量Rt构成。当将作为基板的应力σ与横向电阻分量R1相加的压电阻抗系数πl与作为将应力σ加到纵向电阻分量Rt时的值的压电电阻系数πt的比率 πl：πt= -n：1（n为整数），将纵向电阻分量Rt与横向电阻分量R1的电阻比设定为近似等于压电电阻系数πl与πt之比。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2006162631A Thermal flow measurement device 有权
标题翻译：热流量测量装置
公开(公告)号：JP2006162631A
公开(公告)日：2006-06-22
申请号：JP2006002535
申请日：2006-01-10
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： WATANABE IZUMI , HORIE JUNICHI , NAKADA KEIICHI , KAMIYAMA KEI
IPC分类号： G01F1/684 , F02D35/00
摘要： PROBLEM TO BE SOLVED: To provide a thermal flow measurement device with high reliability capable of preventing a liquid such as a water droplet from sticking to a sensor element for detecting the flow rate. SOLUTION: A plurality of grooves 2 are formed on the inner wall of a sub channel 6 so as to be inclined at an angle of about 45 degree to the flow 10 of fluid and headed in the direction in which a large centrifugal force is generated in the sub channel 6. If the water droplet 21 sticks to the inner wall of the sub channel 6, the water droplet 21 comes into contact with the plurality of grooves 2 and is captured in the plurality of grooves 2 by the surface tension. Then, the water droplet 21 is moved along the groove 2 and onto the side wall on the side where a large centrifugal force is generated by the flow 10 of fluid in the sub channel 6. The water droplet 21 being moved to the side wall is directed toward an outlet aperture 8 while being applied with the centrifugal force so as not to be separated from the side wall. Therefore, the water droplet 21 does not stick to the sensor element 4 for flow measurement, and the thermal flow measurement device with high reliability can be achieved. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有高可靠性的热流测量装置，其能够防止诸如水滴的液体粘附到用于检测流量的传感器元件。解决方案：在子通道6的内壁上形成有多个槽2，以与流体的流动10成大约45度的角度倾斜，并沿着大的离心力在子通道6中产生。如果水滴21粘附到子通道6的内壁，则水滴21与多个槽2接触并且通过表面张力被捕获在多个槽2中。然后，水滴21沿着沟槽2移动到通过副通道6中的流体的流动10产生大的离心力的一侧的侧壁上。移动到侧壁的水滴21是指向出口孔8，同时施加离心力，以便不与侧壁分离。因此，水滴21不粘附到用于流量测量的传感器元件4，并且可以实现具有高可靠性的热流量测量装置。版权所有（C）2006，JPO＆NCIPI

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