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公开(公告)号：DE10026725B4
公开(公告)日：2009-05-20
申请号：DE10026725
申请日：2000-05-30
Applicant: DENSO CORP
Inventor： ARAKAWA MIYAO , KATSUTA HIROYUKI , SUGIE NOBUHIKO
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公开(公告)号：DE10026725A1
公开(公告)日：2001-01-04
申请号：DE10026725
申请日：2000-05-30
Applicant: DENSO CORP
Inventor： ARAKAWA MIYAO , KATSUTA HIROYUKI , SUGIE NOBUHIKO
Abstract: Exhaust gas purification device comprises a current passageway (13) formed between a pair of discharge electrodes (14, 19), and a high voltage producing device (17) producing a high voltage between the electrodes to purify exhaust gas emissions. An auxiliary electrode (16) is arranged in the passageway with holes between the discharge electrode and the auxiliary electrode so that electrical discharges can be produced between the electrodes. Preferred Device: The auxiliary electrode is formed in a corrugated plate form whose peaks and troughs extend in the direction of the exhaust gas in the passageway. The auxiliary electrode is an electrically conducting plate with openings or a mesh electrically conducting element.
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公开(公告)号：JP2008088885A
公开(公告)日：2008-04-17
申请号：JP2006270327
申请日：2006-10-02
Applicant: Denso Corp , 株式会社デンソー
Inventor： KATSUTA HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To improve safety when detecting abnormality of an engine control system.
SOLUTION: In this control device for an internal combustion engine, an ECU 21 is provided with a first breaker 24 to interrupt supply of power supply to a throttle motor 11 and a second breaker 25 to interrupt supply of power supply to a fuel injection valve 15. When detecting abnormality, driving signals are output from both the fail-safe control part 36 of a CPU 22 and the fail-safe control part 43 of an IC 23 to the first breaker 24 and second breaker 25, and a fail-safe processing such as fixation of a throttle opening and fuel cutting is executed. Further, according to the degree and contents of abnormality when detecting abnormality, the fail-safe processing such as inhibition of the use of abnormal sensor output (failure signal), changeover of sensors to be used, correction of accelerator manipulated variable according to a brake state, limitation in change speed or variation of the throttle opening, fixation of the throttle opening, fuel cutting, and output of a reset requirement signal, is gradually executed. The minimum required fail-safe processing for safety is executed.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：为了在检测发动机控制系统的异常时提高安全性。 解决方案：在这种内燃机用控制装置中，ECU21设置有第一断路器24，以中断供给节气门马达11的电力供应和第二断路器25，以中断供给燃料的供电 喷射阀15.当检测到异常时，将驱动信号从CPU22的故障保护控制部分36和IC 23的故障保护控制部分43输出到第一断路器24和第二断路器25，并且失败 执行诸如节气门开度的固定和燃料切割之类的安全处理。 此外，根据检测到异常的异常的程度和内容，可以使用诸如禁止使用异常传感器输出（故障信号），使用的传感器的切换，根据制动器的加速器操作量的校正等故障保护处理 状态，改变速度的限制或节气门开度的变化，节气门开度的固定，燃料切断和复位要求信号的输出被逐渐执行。 执行安全性所需的最小故障安全处理。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2001009232A
公开(公告)日：2001-01-16
申请号：JP18245399
申请日：1999-06-28
Applicant: DENSO CORP
Inventor： ARAKAWA MIYAO , KATSUTA HIROYUKI , SUGIE NOBUHIKO
Abstract: PROBLEM TO BE SOLVED: To improve engine output and fuel cost by reducing exhaust resistance in an exhaust gas purifying device for purifying exhaust by using electrical discharge. SOLUTION: In the purifying device, a flow passage structure 12 having plural flow passages 13 is formed with a heat resistant insulator (alumina, glass or the like) liable to generate the electrical discharge and having dielectric property. A discharge electrode 14 is embedded by a printing conductor or an electrically-conductive plate at one side of the flow passage structure 12. Plural flow passage structures 12 are laminated and the discharge electrode 14 is placed between each flow passage structure 12. An corrugated plate-like auxiliary electrode 16 is housed respectively in each flow passage 13, and each auxiliary electrode 16 is fixed in each flow passage 13 by spring power itself. Discharge plasma is generated between the discharge electrode 14 and the auxiliary electrode 16 in each flow passage 13 and the exhaust gas flowing in each flow passage 13 is purified by applying high voltage between the discharge electrode 14 placed opposite to each other with interposed each flow passage structure 12.
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公开(公告)号：JP2012156157A
公开(公告)日：2012-08-16
申请号：JP2011011184
申请日：2011-01-21
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： KATSUTA HIROYUKI , KONDO ATSUSHI
IPC: H05K7/20
Abstract: PROBLEM TO BE SOLVED: To efficiently cool each portion in a case in an apparatus for cooling a unit, having a heater disposed in the vicinity and a power element housed in the case.SOLUTION: With the disposition of a cooler 34 having fins 34a, 34b on two points of a surface, for cooling an inverter 12 by introducing cooling water from a cooling water pipe 32, there are also disposed an intake fan 44 for taking in air from an intake port 41 provided on a surface of a case 18 opposite to an engine, so as to feed the air to the fin 34a of the cooler 34, and an exhaust fan 46 for ejecting air passing through the fin 34b of the cooler 34 out of an exhaust port 48 provided on an engine-side surface. The inverter 12 and the cooler 34 are laid out in such a manner that air taken in from the intake port 41 is ejected from the exhaust port 48 through the intake fan 44, the fin 34a of the cooler 34, the inverter 12 and a motor ECU 14, the fin 34b of the cooler 34 and the exhaust fan 46. Further, a shield plate 50 is mounted on the engine-side surface of the case 18 having the exhaust port 48 formed thereon.
Abstract translation: 要解决的问题：为了在用于冷却单元的设备中有效地冷却每个部分，具有设置在附近的加热器和容纳在壳体中的功率元件。 解决方案：通过在表面的两个点上设置具有翅片34a，34b的冷却器34，通过从冷却水管32引入冷却水来冷却逆变器12，还设置有用于取出的进气风扇44 在设置在与发动机相对的壳体18的表面上的进气口41的空气中，以将空气供给到冷却器34的翅片34a，以及排气风扇46，用于喷射通过翅片34b的空气 冷却器34设置在发动机侧表面上的排气口48中。 逆变器12和冷却器34布置成使得从进气口41吸入的空气通过进气扇44，冷却器34的翅片34a，逆变器12和电动机 ECU14，冷却器34的翅片34b和排气风扇46.另外，在其上形成有排气口48的壳体18的发动机侧面安装有屏蔽板50。 版权所有（C）2012，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2010287822A
公开(公告)日：2010-12-24
申请号：JP2009142118
申请日：2009-06-15
Applicant: Denso Corp , 株式会社デンソー
Inventor： OKAMOTO KOJI , KATSUTA HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a reactor for reducing the variations in the shape of a coil, and that facilitates stabilization of the inductance characteristics.
SOLUTION: A coil unit 4 is formed of a cylindrical bobbin 2, made of insulating materials and a coil 3 configured by winding a wire 30 around the bobbin 2. Then, the coil 3 is compressed in the axial direction, and the bobbin 2 is compressed, and a side face 21 of the bobbin 2 is bent so that the radius can be made a maximum at the central part of the axial direction, and the wire 30 is extruded from the inside of the coil 3 by the side face 21 so that the wire 30 of the coil 3 is aligned along the side face 21 of the bobbin 2 in an alignment process. As a result of this, variations in the inductance characteristics becomes less by fixing the shape of the coil 3.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种用于制造用于减小线圈形状变化的电抗器的方法，并且有助于电感特性的稳定化。 解决方案：线圈单元4由绝缘材料制成的圆柱形绕线筒2和绕线圈3绕线30构成的线圈3形成。然后，线圈3沿轴向被压缩，并且 筒管2被压缩，并且筒管2的侧面21弯曲，使得在轴向中心部分的半径可以最大化，并且线30从线圈3的内侧被侧面挤出 面21，使得线圈3的线30在对准过程中沿着线轴2的侧面21排列。 作为其结果，通过固定线圈3的形状，电感特性的变化变小。（C）2011年，JPO和INPIT
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公开(公告)号：JP2006194089A
公开(公告)日：2006-07-27
申请号：JP2005003409
申请日：2005-01-11
Applicant: Denso Corp , 株式会社デンソー
Inventor： KATSUTA HIROYUKI
CPC classification number: Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To suppress deviation between actual air-fuel ratio and target air-fuel ratio when changing valve characteristic of an intake valve. SOLUTION: This internal combustion engine 2 is provided with a valve characteristic variable mechanism 50 for changing valve characteristic of the intake valve 14. Amount of fuel injection is compensated by estimating fluctuation of an air-fuel ratio due to fluctuation of amount of blowing-back of air-fuel mixture from a combustion chamber 24 in a period from the time when reaching the bottom dead center to the time when the intake valve 14 is fully closed when amount of lag for the bottom dead center with respect to fully closing timing of the intake valve 14 is changed by change of valve characteristic by the valve characteristic variable mechanism 50. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：当改变进气门的阀特性时，抑制实际空燃比与目标空燃比之间的偏差。 解决方案：该内燃机2设置有用于改变进气门14的阀特性的阀特性可变机构50.燃料喷射量通过估计由于数量的波动引起的空燃比的波动来补偿 在从达到下死点的时间到进气阀14完全关闭的时间段内，从燃烧室24中回吹空气燃料混合物，当下死点相对于完全关闭的滞后量 通过阀特性可变机构50的阀特性变化来改变进气阀14的正时。（C）2006年，JPO＆NCIPI
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公开(公告)号：JPH10318077A
公开(公告)日：1998-12-02
申请号：JP12946897
申请日：1997-05-20
Applicant: DENSO CORP
Inventor： KATSUTA HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To accurately control driving timing of a piezoelectric element. SOLUTION: A primary coil 13, a MOSFET 14 and a current sensing capacitor 15 of a transformer 12 are serially connected to a battery 11. A piezoelectric element 17 and a MOSFET 19 are serially connected to a secondary coil 18. When primary current reaches a specified value at the ON time of the MOSFET 14, the MOSFET 14 is set OFF for interrupting the primary current, and the piezoelectric element 17 is driven. When the secondary side MOSFET 19 is set ON, afterward, charge stored in the piezoelectric element 17 is discharged, to stop the driving of the piezoelectric element 17. Every time the primary current reaches the specified value, an output Q (a timing signal) of a second flip-flop circuit 26 goes down and a driving timing of the piezoelectric element 17 is sensed from the timing signal for feedback-controlling the ON timing of the MOSFET 14. Presence/absence of abnormality of a driving circuit is determined based on the timing signal.
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公开(公告)号：JPH09209878A
公开(公告)日：1997-08-12
申请号：JP1515596
申请日：1996-01-31
Applicant: DENSO CORP
Inventor： KATSUTA HIROYUKI , NOMURA SHIGEO
Abstract: PROBLEM TO BE SOLVED: To provide an air intake control device capable of holding opening of an air intake control valve constant. SOLUTION: A detection resistor Rs is connected to the inside of a circuit where an electric current flowing in an air intake control valve 10 flows, and it is possible to detect an electric current value flowing in the detection resistor Rs, that is, an electric current value flowing in the air intake control valve 10 by amplifying both end voltage of the detection resistor Rs by a detection circuit 33. This electric current value and a standard electric current value to flow in the air intake control valve 10 at the time when the air intake control valve 10 is at a totally open position when there is no intake air flow are compared with each other. It is possible to hold the air intake control valve 10 at the totally open position regardless of opening and closing of the air intake valve or pulsation of an intake air flow even at the time of high rotation and a high load of an engine by controlling a switching signal to be added to four pieces of power elements 32A, 32B, 32C, 32D of a drive circuit 32 in accordance with a difference of the compared electric current value.
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公开(公告)号：JP2011228561A
公开(公告)日：2011-11-10
申请号：JP2010098498
申请日：2010-04-22
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： KATSUTA HIROYUKI
Abstract: PROBLEM TO BE SOLVED: To effectively layout multiple reactors.SOLUTION: Reactors 20 and 30 are stored within a case 10. Each of the reactors 20 and 30 is comprised of reactor coils 24 and 34 respectively, and reactor cores 22 and 32 respectively on which the reactor coils 24 and 34 are wound severally. Each of the reactor cores 22 and 32 has high reluctance parts 22a and 32a respectively around which the reactor coil 24 and 34 are wound severally, and a magnetic path generating part generated outside the reactor coils 24 and 34 respectively to provide magnetic paths connecting both ends of the high reluctance parts. The reactor 20 and the reactor 30 are laid out superposed, without the reactor coils 24 and 34 being overlaid respectively, with at least a part of the magnetic path formation parts of the reactor cores 22 and 32 respectively.
Abstract translation: 要解决的问题：有效布置多个反应堆。 反应器20和30存储在壳体10内。反应器20和30中的每一个分别由电抗器线圈24和34以及分别在其上缠绕有电抗器线圈24和34的电抗器芯22和32组成 个别。 反应堆芯22和32中的每一个分别具有高磁阻部分22a和32a，电抗器线圈24和34分别卷绕在其周围，分别在电抗器线圈24和34外部产生的磁路产生部分，以提供连接两端的磁路 的高磁性部件。 反应器20和反应器30分别叠放在反应堆芯22和32的至少一部分磁路形成部分上，而电抗器线圈24和34分别重叠。 版权所有（C）2012，JPO＆INPIT
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