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1. 发明专利

JP2006152987A Solenoid valve drive mechanism 有权
标题翻译：电磁阀驱动机构
公开(公告)号：JP2006152987A
公开(公告)日：2006-06-15
申请号：JP2004348808
申请日：2004-12-01
申请人： Denso Corp , 株式会社デンソー
发明人： YUKAWA HOSHO , SHIRAKI KATSUYOSHI , KADOWAKI CHIKA
IPC分类号： F02D41/20 , F02D41/22 , F16K31/06
CPC分类号： Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a solenoid valve drive mechanism surely detecting load short circuit of a solenoid composing a solenoid valve. SOLUTION: Count is started at detection timing of rising edge of energizing signal Pi or peak drive signal Pj2 (turn on of transistors Ti, Tj2) and is stopped at detection timing of a drop edge of peak drive signal Pj2 (turn off of the transistor Tj2). Consequently, a count value corresponding to rise time t1 from start of energizing the solenoid Li to achievement of peak value Ia in energizing current Id is obtained. Since as inductance of energizing route including the solenoid Li gets lower, rise and drop of wave form of energizing current Id flowing in the solenoid Li get earlier, load short circuit (drop of inductance) can be detected from change of the count value (rise time t1). COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种确定地检测构成电磁阀的螺线管的负载短路的电磁阀驱动机构。解决方案：在激励信号Pi或峰值驱动信号Pj2（晶体管Ti，Tj2的导通）的上升沿的检测定时开始计数，并在峰值驱动信号Pj2的下降沿的检测定时停止（关断的晶体管Tj2）。因此，获得对应于从开始激励螺线管L1到实现通电电流Id中的峰值Ia的上升时间t1的计数值。由于随着电磁线圈Li的激励路径的电感变低，因此在螺线管Li中流动的激励电流Id的波形的上升和下降越早，可以从计数值的变化（上升）检测出负载短路（电感的下降）时间t1）。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2007211714A Engine control unit, abnormality judgment device and program 审中-公开
标题翻译：发动机控制单元，异常判决设备和程序
公开(公告)号：JP2007211714A
公开(公告)日：2007-08-23
申请号：JP2006033878
申请日：2006-02-10
申请人： Denso Corp , 株式会社デンソー
发明人： SHIRAKI KATSUYOSHI
IPC分类号： F02D43/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To appropriately detect abnormality even in the event of slight abnormality of a temperature sensor. SOLUTION: In the event of slight abnormality of either an ECU inner temperature sensor 12 or a water temperature sensor 24, difference (Δt2 or Δt3) between a temperature (tecu1 or tthw1) detected by a temperature sensor in such abnormality and a suction air temperature becomes larger than the difference between temperature detected by another normal temperature sensor and the suction air temperature (s346 "YES"). Thus, a temperature sensor detecting such temperature of a large temperature difference is specified (s350) and it is judged that the temperature sensor may be in failure (s352 to 360). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在温度传感器发生轻微异常的情况下也能适当地检测异常。解决方案：在ECU内部温度传感器12或水温传感器24发生轻微异常的情况下，在这种异常情况下由温度传感器检测到的温度（tecu1或tthw1）之间的差（Δt2或Δt3）与吸入空气温度大于由其他常温传感器检测到的温度与吸入空气温度之差（s346“是”）。因此，指定检测到温度差大的温度的温度传感器（s350），判断为温度传感器可能失效（s352〜360）。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2009296721A Voltage boosting power supply and drive device 审中-公开
标题翻译：电压升压电源和驱动器件
公开(公告)号：JP2009296721A
公开(公告)日：2009-12-17
申请号：JP2008145781
申请日：2008-06-03
申请人： Denso Corp , 株式会社デンソー
发明人： HASHIMOTO KAZUNARI , IWADARE TAKAAKI , SHIRAKI KATSUYOSHI
IPC分类号： H02M3/155 , F02D41/20 , H02M1/08
摘要： PROBLEM TO BE SOLVED: To strike a balance between the suppression of radiative noise due to a switching element and the suppression of heat generation, and facilitate the addition and deletion of its function for reconciliation.
SOLUTION: In a fuel injection controller 1, a boosting circuit 20, which charges a capacitor C0 that is discharged to the coil 101a of an injector 101, charges the capacitor C0 by repeatedly switching on or switching off a boosting transistor T0 consisting of an FET that intermits the circuit between the other end of an inductor L0 whose one end is supplied with power voltage VB and the ground potential. It includes a series circuit comprising a resistor Rb and a switch 22, in parallel with a resistor Ra which serves as a gate resistor that is provided between the output terminal P1 of a drive control circuit 30 that outputs a control voltage to the transistor T0 and the gate terminal of the transistor T0. Then, a microcomputer 40 drops the gate resistance value by switching on the switch 22 when the number of revolutions of an engine amounts to a threshold, thereby suppressing the heat generation of the transistor T0.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在抑制由开关元件引起的辐射噪声和抑制发热之间取得平衡，并且有助于增加和删除其调和功能。解决方案：在燃料喷射控制器1中，对放电到喷射器101的线圈101a的电容器C0进行充电的升压电路20通过重复地接通或关断升压晶体管T0来对电容器C0进行充电，该升压晶体管T0包括一个FET，其间隔电路L0的另一端之间的电路，其一端被提供有电源电压VB和地电位。它包括串联电路，其包括电阻器Rb和开关22，与用作输出到晶体管T0的控制电压的驱动控制电路30的输出端子P1之间的栅极电阻器的电阻器Ra并联; 晶体管T0的栅极端子。然后，当发动机的转数达到阈值时，微型计算机40通过接通开关22来降低栅极电阻值，由此抑制晶体管T0的发热。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2007082374A Protection circuit on reverse connection of power supply 有权
标题翻译：逆向电源连接保护电路
公开(公告)号：JP2007082374A
公开(公告)日：2007-03-29
申请号：JP2005270238
申请日：2005-09-16
申请人： Denso Corp , 株式会社デンソー
发明人： SHIRAKI KATSUYOSHI , YUKAWA HOSHO , MAEDA SHINICHI
IPC分类号： H02H11/00 , G05F1/56 , H02H7/18 , H02J7/00
摘要： PROBLEM TO BE SOLVED: To provide a protection circuit that is the most suitable for protection of electronic control unit (ECU) during reverse connection of a power supply. SOLUTION: In ECU45 operating on a power supply of a battery 3, n-channel FET21 is provided on a power supply wiring 15 that establishes a connection between a power supply terminal 5 connected to a plus terminal of the battery 3 and a control circuit 13 for power supply, in such a manner that an anode of its parasitic diode D1 is situated at the side of a power terminal 5. Further, n-channel FET22 is provided at a downstream side of the FET21, in such a manner that a cathode of its parasitic diode D2 is situated at FET21 side. When an ignition key switch 9 is turned on during normal connection of the battery 3, FET's21, 22 are turned on by charge pump circuits 43, 47 to which operating electricity is supplied from a drain side of FET21, and electricity of a battery 3 is supplied to the control circuit 13. Further, FET's21, 22 are turned off during reverse connection of the battery 3, and thus reverse current is inhibited by the parasitic diode D1. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供在电源反向连接期间最适合于保护电子控制单元（ECU）的保护电路。
解决方案：在操作电池3的电源的ECU45中，n沟道FET21设置在电源布线15上，电源布线15建立连接到电池3的正极端子的电源端子5和用于供电的控制电路13，使得其寄生二极管D1的阳极位于电源端子5的侧面。此外，n沟道FET22以这种方式设置在FET21的下游侧其寄生二极管D2的阴极位于FET21侧。当在电池3的正常连接期间点火钥匙开关9接通时，FET21,22由FET21的漏极侧供给工作电的电荷泵电路43,47接通，并且电池的电 3被提供给控制电路13.此外，在电池3的反向连接期间，FET 21,22断开，从而由寄生二极管D1阻止反向电流。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007146721A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2007146721A
公开(公告)日：2007-06-14
申请号：JP2005340701
申请日：2005-11-25
申请人： Denso Corp , 株式会社デンソー
发明人： YUKAWA HOSHO , SHIRAKI KATSUYOSHI
IPC分类号： F02D41/20 , F02D45/00 , F02M45/08 , F02M47/00 , F02M51/00 , F02M51/06 , F02M55/02
摘要： PROBLEM TO BE SOLVED: To secure desired fuel injection quantity in an internal combustion engine. SOLUTION: In an injection control device driving an injector opened by discharge of a capacitor and injecting fuel to the internal combustion engine, time Tb from discharge start time of the capacitor (time 0) till current Ip sufficient to open the injector flows in the injector is measured, and process to secure appropriate fuel injection quantity according to time difference between the time TB and theoretical time Ta is executed. In an embodiment, correction to retard or advance time Te to open the injector is done. Also, correction to retard or advance discharge start timing of the capacitor is done. Furthermore, charge voltage of the capacitor is increased or decreased. Fuel injection quantity to the internal combustion engine is increased or decreased by such processing. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：确保内燃机中期望的燃料喷射量。解决方案：在驱动通过放电电容器并将燃料喷射到内燃机而打开的喷射器的喷射控制装置中，从电容器的放电开始时间（时间0）到足以打开喷射器的电流Ip的时间Tb流动在喷射器中进行测量，并根据时间TB与理论时间Ta之间的时间差来确保合适的燃料喷射量。在一个实施例中，完成了延迟或提前时间Te的校正以打开喷射器。此外，进行电容器的延迟或提前放电开始定时的修正。此外，电容器的充电电压增加或减小。通过这样的处理，内燃机的燃料喷射量增加或减少。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2007113547A Fuel injection control device 有权
标题翻译：燃油喷射控制装置
公开(公告)号：JP2007113547A
公开(公告)日：2007-05-10
申请号：JP2005308466
申请日：2005-10-24
申请人： Denso Corp , 株式会社デンソー
发明人： SHIRAKI KATSUYOSHI , MAEDA SHINICHI , YUKAWA HOSHO
IPC分类号： F02D41/20 , F02D41/22 , F02D41/34 , F02D45/00 , F02M45/08 , F02M51/00 , F02M51/06
CPC分类号： F02D41/20 , F02D41/402 , F02D41/403 , F02D41/405 , F02D2041/2086 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To allow a vehicle to travel even if any malfunction has been detected in detecting precisely malfunction of a capacitor for supplying a peak current for opening a valve in a fuel injection control device in which an injector is opened at a plurality of times within one stroke of combustion to perform fuel injection to an internal combustion engine. SOLUTION: A micro computer 130 measures a charging period where the charging voltage rises by a certain value as well as detecting a charged voltage of the capacitor C10 via a detection circuit 61a. When the charging period is not within a predetermined normal range, the micro computer 130 judges that malfunction where the capacitor C10 could not store electric charges required to practice the fuel injection more than once has been developed. Further, when the malfunction of the capacitor C10 has been detected, the micro computer 130 sets limits on the implementation of fuel injection other than main fuel injection for operating the internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在检测到在喷射器打开的燃料喷射控制装置中检测用于提供用于打开阀的峰值电流的电容器的精确故障时，即使检测到任何故障，也允许车辆行驶在一个燃烧行程内多次进行向内燃机的燃料喷射。解决方案：微计算机130测量充电电压上升一定值的充电周期，以及经由检测电路61a检测电容器C10的充电电压。当充电期间不在预定的正常范围内时，微计算机130判断电容器C10不能存储多次执行燃料喷射所需的电荷的故障。此外，当检测到电容器C10的故障时，微型计算机130对用于操作内燃机的主燃料喷射以外的燃料喷射的实施设定限制。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2001051757A ELECTRONIC CONTROLLER 失效
公开(公告)号：JP2001051757A
公开(公告)日：2001-02-23
申请号：JP22275499
申请日：1999-08-05
申请人： DENSO CORP
发明人： SHIRAKI KATSUYOSHI
IPC分类号： G06F3/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an electronic controller capable of easily and speedily communicating with new external equipment. SOLUTION: This electronic controller can switch a communication destination for executing serial communication through a communication port by a switch SW3. By newly connecting a developing tool 9, the communicating destination for executing serial communication by the switch 3 is switched from an immobile ECU 6 and a diagnostic tool 7 until then to the newly connected tool 9 by a prescribed voltage signal Vc inputted from the tool 9. Switches SW2 and SW3 are controlled by a signal from the newly connected tool 9 to switch a communicating destination for executing serial communication through a second communication port (SCI-A terminal) different from a communication port (SCI-B terminal) connected to the tool 9 to the side of optional external equipment.

8. 发明专利

JP2001014044A DRIVING DEVICE FOR ELECTROMAGNETIC LOAD 失效
公开(公告)号：JP2001014044A
公开(公告)日：2001-01-19
申请号：JP18348799
申请日：1999-06-29
申请人： DENSO CORP
发明人： SHIRAKI KATSUYOSHI , MAEDA SHINICHI
IPC分类号： H01F7/16 , F02D41/20 , F02M51/00 , F02M51/06 , G05F1/56 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To dissolve dispersion of time in which the electromagnetic load is transferred from in an operating state to in a non-operating state in the case of interruption of current conduction and to stably drive the electromagnetic load. SOLUTION: Solenoids (electromagnetic loads) 101a to 104a of an injectors 101 to 104 of this driving device are energized or their current conduction is interrupted by transistors T10 to T40. Stored energy of capacitors C10, C20 is supplied to the solenoids when the solenoids are energized by an IC 120 for driving. Counter electromotive force to be generated in the case of interruption of energization of the solenoids is recovered at diodes D10 to D40 and simultaneously stored in capacitors C30, C40. In addition, transistors T14, T24 are turned on, the stored energy in the capacitors 30, 40 is emitted to the solenoids and voltage levels of the capacitors are adjusted to a power source voltage levels by the next recovery of the counter electromotive force by the IC 120 for driving. Thus, time required for recovery of energy is uniformalized in the case of interruption of current conduction of the solenoids.

9. 发明专利

JPH0989147A SOLENOID VALVE DRIVING DEVICE 失效
公开(公告)号：JPH0989147A
公开(公告)日：1997-03-31
申请号：JP24192095
申请日：1995-09-20
申请人： DENSO CORP
发明人： SHIRAKI KATSUYOSHI
IPC分类号： F02M45/10 , F02D41/20 , F02M47/00 , F02M47/02 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To provide a solenoid valve driving device capable of performing the high-speed valve opening operation with a simple structure. SOLUTION: A battery terminal 33 and a transistor 35 are connected to a primary coil 34a of a transformer 34 in series, and a condenser 38 and a condenser 40 are connected to a secondary coil 34b in parallel. An oscillating circuit 59 on and off-controls the transistor 35 by outputting an oscillating signal to the transistor 35, so as to generate electromotive force to be generated by the mutual induction action on the secondary coil 34b of the transformer 34. A microcomputer 4 turns on transistors 43 in a state where a transistor 44 is off, pilot injection is performed by electrifying a driving solenoid 30 by the condenser 40, the transistors 43 are turned on in a state where the transistor 44 is on just after the pilot injection, and main injection is performed by electrifying the driving solenoid 30 by the condenser 38.

10. 发明专利

JP2000161496A WATERPROOF CASE 失效
公开(公告)号：JP2000161496A
公开(公告)日：2000-06-16
申请号：JP33485798
申请日：1998-11-26
申请人： DENSO CORP
发明人： SHIRAKI KATSUYOSHI
IPC分类号： H05K5/06 , F16J15/10
摘要： PROBLEM TO BE SOLVED: To prevent floating of a gasket fitted in a groove of a case. SOLUTION: A groove 16 is formed on a peripheral edge of an opening of a case body 11. Projections 21 a little expanded compared to the width of the groove 16 are formed on center portions of at least longer sides of a gasket 17 to be fitted to the groove 16. In assembling, the projections 21 of the respective sides of the gasket 17 are sequentially pushed between the side walls of the groove 16. The gasket 17 is fitted to the groove while temporarily fixing by means of the projections 21. With such a setup, it is possible to prevent floating of a part of the gasket 17 from the groove 16, due to the presence of the projections 21, after the fitting. Re-fitting of the gasket 17 is not required for improving assembling operability. In addition, a cover 14 is not covered over the gasket 17 which is forced out from the groove 16 partially. Insufficient waterproofness caused by malfunction of the assembling of the gasket 17 is also prevented.

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