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    • 1. 发明专利
    • ガスセンサ制御装置
    • 气体传感器控制装置
    • JP2015034801A
    • 2015-02-19
    • JP2013167126
    • 2013-08-09
    • 株式会社デンソーDenso Corp
    • YAMADA YUJIMATSUOKA MIKIYASUONO KENICHIOGURI TAKAMASAMISHIMA TAKAO
    • G01N27/409F01N3/00
    • G01N27/407F01N3/101F01N11/00F01N13/0093F01N2550/00F01N2560/025F01N2570/14Y02T10/22Y02T10/47
    • 【課題】構成の簡素化を図りつつ、ガスセンサの起電力セルに電流を流すことでセンサ出力特性の変更を可能とする。【解決手段】O2センサ17は、固体電解質層32と該固体電解質層32を挟む位置に設けられる一対の電極33,34とを用いてなるセンサ素子31を有し、エンジンの排気を検出対象として該排気の空燃比に応じた起電力信号を出力する。大気側電極34と接地点とを接続する電気経路には、センサ素子31において固体電解質層32を通じて一対の電極間33,34に所定の定電流を流す定電流回路43が設けられている。定電流回路43は、センサ素子31にて起電力が生じる場合にその起電力を電源として電流を流すものであって、さらに少なくともストイキである場合の起電力を含みかつそれよりも大きい起電力範囲で一定電流の流通を可能とするものである。【選択図】図2
    • 要解决的问题:提供一种具有简化结构的气体传感器控制装置,并且还可以通过向气体传感器的电动势单元施加电流来改变气体传感器输出特性。解决方案:O 2传感器17包括传感器元件31 使用固体电解质层32和设置在电极之间的固体电解质层32的位置的一对电极33,34形成,O 2传感器17将发动机排气设定为检测对象物,并输出对应于 排气的空燃比。 连接大气侧电极34与接地点的电路设置有恒定电流电路43,其通过传感器元件31中的固体电解质层32向一对电极33和34之间的部分施加规定的恒定电流。当 在传感器元件31中产生电动势,恒流电路43使用电动势作为电源施加电流,并且可以在至少包括电化学计量状态的电动势的电动势范围内进一步流动恒定电流 并且大于那个。
    • 2. 发明专利
    • ガスセンサ制御装置
    • 气体传感器控制装置
    • JP2015034800A
    • 2015-02-19
    • JP2013167125
    • 2013-08-09
    • 株式会社デンソーDenso Corp
    • YAMADA YUJIMATSUOKA MIKIYASUONO KENICHIOGURI TAKAMASAMISHIMA TAKAO
    • G01N27/409F01N3/00
    • G01N27/409F01N3/101F01N11/007F01N2900/1402Y02T10/22
    • 【課題】構成の簡素化を図りつつ、ガスセンサの起電力セルに電流を流すことでセンサ出力特性の変更を可能とする。【解決手段】O2センサ17は、固体電解質層32と該固体電解質層32を挟む位置に設けられる一対の電極33,34とを用いてなるセンサ素子31を有し、エンジンの排気を検出対象として該排気の空燃比に応じた起電力信号を出力する。センサ素子31における一対の電極33,34の一方は起電力出力時に正側となる大気側電極34、他方は起電力出力時に負側となる排気側電極33である。大気側電極34と接地点とを接続する電気経路には通電用抵抗44が設けられており、センサ素子31にて起電力が生じる場合に、その起電力を電源として通電用抵抗44に電流が流れることでO2センサ17の出力特性が変更される。【選択図】図2
    • 要解决的问题:提供一种具有简化结构的气体传感器控制装置,并且还可以通过向气体传感器的电动势单元施加电流来改变气体传感器输出特性。解决方案:O 2传感器17包括传感器元件31 使用固体电解质层32和设置在电极之间的固体电解质层32的位置的一对电极33,34形成,O2传感器17将发动机排气设定为检测对象物,并输出对应于 排气的空燃比。 传感器元件31中的一对电极33和34中的一个是在输出电动势时成为正侧的大气侧电极34和输出电动势时的排气侧电极33变为负极侧。 连接大气侧电极34与接地点的电路设置有通电电阻器44,并且当在传感器元件31中产生电动势时,通过使用电动势来改变O2传感器17的输出特性 作为将电流施加到载流电阻器44的电源。
    • 5. 发明专利
    • FUEL FEEDING DEVICE OF INTERNAL COMBUSTION ENGINE
    • JPH10281042A
    • 1998-10-20
    • JP9209497
    • 1997-04-10
    • DENSO CORP
    • USAMI TAKESHIONO KENICHI
    • F02M29/00F02M35/104F02M69/04
    • PROBLEM TO BE SOLVED: To properly feed an inflammable air-fuel mixture by distributing fuel supply uniformly to each of multiple cylinders of an internal combustion engine. SOLUTION: A fuel feeding device of an internal combustion engine is constructed so that it is provided with multiple branch pipes branched from one collecting pipe 5, and the fuel injected from an injector 25 is distributed in the single path of the branch part at the inlet side so that it corresponds to each cylinder. Also the fuel collided with the bottom surface of the collecting pipe 5 among the fuel injected radially from the injector 25 flows along the walls, guided by a first rib 7 and a second rib 8, and distributed so that the amount of fuel fed to each cylinder becomes uniform. Thus the outputs from the cylinders become uniform, and the operability of an internal combustion engine is increased. In addition, because the fuel feeding device of the internal combustion engine is formed in reverse T-shape in cross section by the ribs 7 and 8, the collecting pipe can be strengthened by structurally increasing its rigidity.
    • 6. 发明专利
    • FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    • JP2000104610A
    • 2000-04-11
    • JP27551798
    • 1998-09-29
    • DENSO CORP
    • OZEKI ATSUSHIONO KENICHI
    • F02D41/34
    • PROBLEM TO BE SOLVED: To control the volume of fuel injection with high degree of accuracy even though an internal combustion engine is driven in any operating condition. SOLUTION: An electromagnetic drive type injector 18 is arranged in an intake-pipe 2 of an engine 1. An ECU 30 computes an injection pulse in accordance with an engine operating condition, and controls a fuel injection volume from the injector 18 into the engine 1 in accordance with the injection pulse. In particular, the ECU 30 successively estimates a temperature of the injector in accordance with a heat receiving factor of the injector 18 and a heart radiating factor thereof during operation of the engine. An injection pulse correcting value is calculated from thus estimated injector temperature, and the injection pulse is corrected in accordance with thus calculated injection pulse correcting value. With this arrangement, the volume of fuel injection by the injector 18 is suitably corrected while the injector temperature characteristic which is changed every moment during operation of the engine is reflected.
    • 7. 发明专利
    • FUEL INJECTION CONTROLLER FOR THREE-CYLINDER ENGINE
    • JPH1113525A
    • 1999-01-19
    • JP17130097
    • 1997-06-27
    • DENSO CORP
    • ONO KENICHI
    • F02D41/04F02D41/34
    • PROBLEM TO BE SOLVED: To achieve both enlargement of an injection quantity range (dynamic range) and proper fuel distribution to each of cylinders in SPI for a three- cylinder engine. SOLUTION: In a three-cylinder engine, in the case where a required injection quantity is lower than an injection times switching judgment value, injection between 720 deg.CA is carried out twice in the same injection quantity. Furthermore, an injection timing is set such that fuel is uniformly distributed in cylinders #1, #2, #3. For example, the injection timing is set such that a fuel distribution ratio between the cylinder #1 and the cylinder 113 by the first injection becomes 2:1 and a fuel distribution ratio between the cylinder #3 and the cylinder #2 by the second injection becomes 1:2, so that a fuel distribution ratio among the three cylinders between 720 deg.C A becomes 2:2:2, whereby the fuel can be uniformly distributed to the three cylinders. In contrast, in the case where the required injection quantity is higher than or equal to the injection times switching judgment value, injection between 720 deg.CA is carried out three times so that fuel is injected in a quantity required for one cylinder by one injection.
    • 8. 发明专利
    • CONTROL UNIT FOR INTERNAL COMBUSTION ENGINE
    • JPH09317525A
    • 1997-12-09
    • JP13611196
    • 1996-05-30
    • DENSO CORP
    • ONO KENICHIHAYAMIZU TOSHIBUMIYONEKAWA MASAO
    • F02D41/06
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine with study control function so as to prevent the likelihood of malfunctional and unstable operation though the engine being started is exposed to considerably different ambience in comparison with the ambience wherein engine was stopped. SOLUTION: When an internal combustion engine 10 is started, if cooling temperature TWH sensed by a water temperature sensor 21 is higher than prescribed temperature as the uppermost water temperature likely to take in cool state starting, memorised study value is used just as it is under recognition that this restarting is carried out soon after the engine was stopped, while if the sensed temperature is under the prescribed one, the study value is initialized or reviced according to the cooling water temperature THW. Thereby, an ISC(idle rotating speed control) can smoothly control intake air quantity by the sake of optimum opening of an ISC valve when engine is started, though, for instance, the ambient conditions between when the engine was stopped and when it is started are considerably different, preventing the internal combustion engine 10 from the occrrence of stall (engine stop), while restraining it from excess blow.