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21. 发明专利

JP2008144739A Evaporated fuel treatment device 有权
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2008144739A
公开(公告)日：2008-06-26
申请号：JP2006336152
申请日：2006-12-13
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： TAKAKURA SHINSUKE , KANO MASAO , AMANO NORIYASU
IPC分类号： F02M25/08 , F02D41/02 , F02D41/04 , F02D45/00
CPC分类号： F02M25/089
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device implementing both a large volume of purge and a highly accurate air-fuel ratio control.
SOLUTION: The evaporated fuel treatment device comprises: a canister having an adsorbent adsorbing evaporated fuel generated in a fuel tank; a detection system detecting an evaporated fuel concentration in mixture gas made by mixing air to the evaporated fuel desorbed from the adsorbent; a purge passage flowing mixture gas to an internal combustion engine side; a control means controlling purge based on an evaporated fuel state quantity detected by the detection system; and an ECU as a learning means learning the evaporated fuel concentration in the mixture gas purged by a purge control, based on an operational state quantity of the internal combustion engine. On condition that a difference between learned concentration D
1 at the end in a previous purge and detected concentration D
d detected after the previous purge is a set value ΔD or more, the ECU controls the purge based on the learned concentration D
1 (S105), before the purge control based on the detected concentration D
d (S106).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供实现大量吹扫和高精度空燃比控制的蒸发燃料处理装置。蒸发燃料处理装置包括：具有吸附在燃料箱中产生的蒸发燃料的吸附剂的罐; 检测系统，其检测通过将空气与从吸附剂解吸的蒸发燃料混合而制成的混合气体中的蒸发燃料浓度; 将混合气体流入内燃机侧的吹扫通道; 基于由所述检测系统检测到的蒸发燃料状态量控制吹扫的控制装置; 以及作为学习装置的ECU，其基于内燃机的运转状态来学习通过清扫控制清除的混合气体中的蒸发燃料浓度。在先前清洗结束时的学习浓度D 1 与前次清洗后检测浓度D d 的差为设定值ΔD以上的条件下，在基于检测浓度D D 的清洗控制之前，ECU基于学习浓度D 1 控制吹扫（S106）。版权所有（C）2008，JPO＆INPIT

22. 发明专利

JP2007182813A Evaporated fuel treating device of internal combustion engine 审中-公开
标题翻译：内燃机的蒸发燃料处理装置
公开(公告)号：JP2007182813A
公开(公告)日：2007-07-19
申请号：JP2006001829
申请日：2006-01-06
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： TAKAKURA SHINSUKE , KANO MASAO , AMANO NORIYASU
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treating device of an internal combustion engine capable of quickly measuring an evaporated fuel concentration in a mixture.
SOLUTION: The evaporated fuel treating device includes a canister 13 having an adsorbent 14 for temporarily adsorbing evaporated fuel and a space layer 19, a purge pipe 15 for introducing the mixture containing evaporated fuel separated from the adsorbent 14 to an intake pipe 2, and a purge control valve 16 for adjusting a flow rate of the mixture introduced from the purge pipe 15 to the intake pipe 2 based on a measuring result of the evaporated fuel concentration in the mixture. The device comprises a concentration detection unit 20 disposed outside the canister 13 and a supply pipe 25 for sucking the mixture from the canister 13 and supplying it to the concentration detection unit 20, wherein an intake opening of the supply pipe 25 is located closer to an adsorbent 14 side than an inner wall surface of an upper wall 131. The evaporated fuel concentration in the mixture sucked from the suction opening of the supply pipe 25 approaches the evaporated fuel concentration of the mixture during actual purge in a relatively short time, and therefore the evaporated fuel concentration of the mixture can be measured quickly.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够快速测量混合物中蒸发的燃料浓度的内燃机的蒸发燃料处理装置。蒸发燃料处理装置包括具有临时吸附蒸发燃料的吸附剂14和空间层19的罐13，用于将从吸附剂14分离的包含蒸发燃料的混合物引入进气管2的吹扫管15 以及用于基于混合物中蒸发的燃料浓度的测量结果来调节从吹扫管15引入到进气管2的混合物的流量的清洗控制阀16。该装置包括设置在罐13外部的浓度检测单元20和用于从罐13吸取混合物并将其供应到浓度检测单元20的供给管25，其中供应管25的进气口位于更接近吸附剂14侧比上壁131的内壁表面。从相对短的时间内在实际吹扫期间，从供给管25的吸入口吸入的混合物中蒸发的燃料浓度接近混合物的蒸发燃料浓度，因此可以快速测量混合物的蒸发燃料浓度。版权所有（C）2007，JPO＆INPIT

23. 发明专利

JP2007154661A Evaporated fuel treatment device 有权
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2007154661A
公开(公告)日：2007-06-21
申请号：JP2005346475
申请日：2005-11-30
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANO MASAO , TAKAKURA SHINSUKE , AMANO NORIYASU
IPC分类号： F02M25/08 , B60K15/077 , F02M37/00
CPC分类号： F02M25/089 , F02D41/0045 , F02D41/062 , F02D2200/0612
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device which controls with high accuracy the amount of evaporated fuel purged from a fuel tank to an intake passage irrespective of fuel characteristics.
SOLUTION: A fuel tank 10 and an intake passage 12 are connected to each other through a purge passage 100. A purge valve 16 controls a flow rate of fluid passing through the purge passage 100. A solenoid valve 32 changes over communication and disconnection between a throttle 30 and a passage 110 on the fuel tank 10 side and between the throttle 30 and a passage 114 on an air side. An evaporate fuel concentration in the tank 10 is measured by controlling the changeover state of the solenoid valve 32 and detecting air pressure ΔP
AIR when only air passes through the throttle 30, mixture pressure ΔP
GAS when the mixture of air and evaporated fuel in the fuel tank 10 passes through the throttle 30 and shut-off pressure P
t when blocking the air side of the throttle 30 by a pressur sensor 40. The opening of a purge valve 16 is controlled in accordance with the evaporate fuel concentration in the tank 10.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种蒸发燃料处理装置，其高精度地控制从燃料箱向进气通道吹扫的蒸发燃料的量，而与燃料特性无关。解决方案：燃料箱10和进气通道12通过吹扫通道100彼此连接。清洗阀16控制通过清洗通道100的流体的流量。电磁阀32改变通信和节气门30与燃料箱10一侧的通道110以及节气门30与空气侧的通路114之间的断开。通过控制电磁阀32的切换状态并且仅在空气通过节流阀30时检测空气压力ΔP AIR 来测量罐10中的蒸发燃料浓度，混合压力ΔP GAS < / SB>当通过压力传感器40阻塞节流阀30的空气侧时，燃料箱10中的空气和蒸发燃料的混合物通过节流阀30和关闭压力P 。根据罐10中的蒸发燃料浓度来控制排气阀16的打开。版权所有：（C）2007，JPO＆INPIT

24. 发明专利

JP2004003440A Diagnostic method and diagnostic device of evaporative fuel treatment device 有权
公开(公告)号：JP2004003440A
公开(公告)日：2004-01-08
申请号：JP2003024353
申请日：2003-01-31
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： AMANO NORIYASU , ITAKURA HIDEAKI , KATO NAOYA , KANO MASAO
IPC分类号： G01M3/26 , F02M25/08 , G01M3/04 , G01M15/00 , G01M99/00
CPC分类号： F02M25/0809
摘要： PROBLEM TO BE SOLVED: To detect any leakage of evaporative systems with high accuracy even when a very large amount of fuel remains. SOLUTION: The time required for the pressure in evaporative systems 6, 7, 8, 10 and 11 to drop from a first predetermined pressure P0 to a second predetermined pressure P1 is measured for a state in which a reference orifice 17 as a reference leak hole is included in a leaking part and a state in which no reference orifice is included, respectively. By comparing the required time T2 in the state in which no reference orifice is included with a reference determination time of the required time T1 in the state in which the reference orifice is included, multiplied by a predetermined coefficient, a state of leakage is diagnosed without being affected by the atmospheric temperature or the like. The pressure drop state is adequately indicated even when a very large amount of fuel remains by using the time from the first predetermined pressure P0 to the second predetermined pressure P1 as an index of the pressure drop state. COPYRIGHT: (C)2004,JPO

25. 发明专利

JP2003042008A Evaporating fuel treatment device 有权
标题翻译：蒸发燃料处理设备
公开(公告)号：JP2003042008A
公开(公告)日：2003-02-13
申请号：JP2001226497
申请日：2001-07-26
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： ITAKURA HIDEAKI , AMANO NORIYASU , YOSHIOKA MAMORU , KIYOMIYA SHINSUKE , KANO MASAO
IPC分类号： B60K15/077 , F02D29/02 , F02M25/08
摘要： PROBLEM TO BE SOLVED: To solve the problem that a direct-injection engine or an engine mounted on a hybrid vehicle has a throttle valve often largely opened during operation and an inlet pipe subjected to low negative pressure to provide insufficient capability for recovering an evaporating fuel absorbing canister, which should be supplemented. SOLUTION: A second purge line 27 opening to a suction port 8 of each cylinder is provided for purging the canister 18. Numeral 24 is a first purge line opening to a common inlet pipe 12, numeral 23 is a first purge valve and numeral 28 is a second purge valve. Since an inlet port 8 of each cylinder has inlet negative pressure higher than the inlet pipe 12 during an intermediate or high load, high purging capability is established in this condition. During a low-load operated condition such as idling, the first purge line 24 is utilized as conventional. By providing one-way valves in the purge lines 24, 27, canister purging operations are performed in the order of the line having higher negative pressure and the maximum purge flow is therefore provided when both of them operate together.
摘要翻译：要解决的问题为了解决直接喷射发动机或安装在混合动力车辆上的发动机具有在运行中经常大大打开的节流阀和经受低负压的进气管以提供不足以回收蒸发燃料的能力的问题吸收罐，应补充。解决方案：提供通向每个气缸的吸入口8的第二吹扫管线27，用于清洗罐18.数字24是通向公共入口管12的第一吹扫管线，标号23是第一吹扫阀，数字28是第二个清洗阀。由于每个气缸的入口端口8在中等或高负载期间具有高于入口管12的入口负压，因此在该状态下建立了高清洗能力。在诸如怠速的低负载操作条件期间，如常规使用第一吹扫管线24。通过在净化管线24,27中提供单向阀，以更高负压的管线的顺序执行罐清洗操作，因此当它们两者一起工作时，提供最大吹扫流量。

26. 发明专利

JPH1026071A ION CURRENT DETECTING DEVICE 失效
公开(公告)号：JPH1026071A
公开(公告)日：1998-01-27
申请号：JP17946596
申请日：1996-07-09
申请人： NIPPON SOKEN , DENSO CORP
发明人： SATO YASUYUKI , KOHAMA TOKIO , YOSHINAGA TORU , YORITA HIROSHI , KANO MASAO , TAKAKUWA EIJI
IPC分类号： F02P17/00
摘要： PROBLEM TO BE SOLVED: To precisely detect an amount of generating combustion ion and reduce a cost. SOLUTION: An ignition plug 10 has a tip protruded in the combustion chamber, not shown, of an internal combustion chamber and an ignition plug 10 is provided with an opposite electrode consisting of a central electrode 11 and an earthing electrode 12. A winding on the secondary side 20b of a transformer 20 is connected to the central electrode 11 of the opposite electrode. A signal generator 40 to generate an AC voltage signal having a given frequency and a current detecting part 50 to detect a current value is caused to flow by means of an AC voltage signal from a signal generator 40 are connected in series to the winding on the secondary side 20b of the transformer 20. In this case, the signal generator 40 outputs a voltage signal of an AC frequency f0 satisfying a relation of 'f0>=v/s', wherein (s) is a distance between the central electrode 11 and the earthing electrode 12 of the ignition plug 20 and (v) is a drift speed of combustion ion.

27. 发明专利

JP2009036746A Fuel property detection device 有权
标题翻译：燃油特性检测装置
公开(公告)号：JP2009036746A
公开(公告)日：2009-02-19
申请号：JP2007257837
申请日：2007-10-01
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： UCHIDA AKIKAZU , KANO MASAO , AMANO NORIYASU
IPC分类号： G01N21/27 , G01N21/35 , G01N21/3577 , G01N21/359 , G01N21/41 , G01N21/552
摘要： PROBLEM TO BE SOLVED: To provide a fuel property detection device capable of detecting both of a degree of heaviness of gasoline and an alcohol concentration contained in the gasoline accurately, and reducing a size and the number of components of the device. SOLUTION: The fuel property detection device includes a light emitting diode 2 and a PSD 3 as a set of detection means, and detects an ethanol concentration from correlationship between a received amount of light of the PSD 3, a measured light reduction degree when the fuel permeates, and the alcohol concentration, and detects the degree of the heaviness of the gasoline from correlationship between a gravity position of light quantity in the PSD 3, the degree of the heaviness of the gasoline, and a total reflection angle. Thereby, both of the degree of the heaviness of the gasoline and the alcohol concentration contained in the gasoline can be detected accurately, and the size and the number of components can be reduced. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够精确地检测汽油的重质度和汽油中所含的酒精浓度两者的燃料特性检测装置，并且减小装置的尺寸和数量。解决方案：燃料特性检测装置包括作为一组检测装置的发光二极管2和PSD 3，并且从PSD 3的接收光量之间的相关性检测乙醇浓度，测量的光减少度当燃料渗透和酒精浓度，并且从PSD 3中的光量的重力位置，汽油的沉重程度与全反射角之间的相关性来检测汽油的沉重程度。因此，能够精确地检测汽油的重质度和汽油中所含的醇浓度，能够降低成分的大小和数量。版权所有（C）2009，JPO＆INPIT

28. 发明专利

JP2007187011A Evaporated fuel treatment device 有权
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2007187011A
公开(公告)日：2007-07-26
申请号：JP2006003430
申请日：2006-01-11
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANO MASAO , TAKAKURA SHINSUKE , AMANO NORIYASU
IPC分类号： F02M25/08
CPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device diagnosing abnormality of a component measuring evaporated fuel condition.
SOLUTION: The evaporated fuel treatment device 30 adsorbs evaporated fuel formed in a fuel tank 32 in a first canister 34 and treats the evaporated fuel adsorbed by the first canister 34 by purging to an intake air passage 14. A pressure sensor 50 detects air pressure of air flowing in a measurement passage 112, air fuel mixture pressure of air and evaporated fuel, and shut off pressure when an opposite side of a throttle 40 of the pump is shut off, and evaporated fuel concentration purged to the intake air passage 14 from the first canister 34 via a purge valve 36 is measured from detection signal of the pressure sensor 50. ECU 60 diagnoses abnormality of the throttle 40, the pump 42, solenoid valves 44, 46 and the pressure sensor 50 and the like in each treatment of measurement of evaporated fuel concentration, purge and leak check.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种诊断测量蒸发燃料状况的部件的异常的蒸发燃料处理装置。解决方案：蒸发燃料处理装置30吸收形成在第一罐34中的燃料箱32中的蒸发燃料，并通过净化到进气通道14来处理由第一罐34吸附的蒸发燃料。压力传感器50检测在测量通道112中流动的空气的空气压力，空气的燃料混合气压力和蒸发的燃料，并且当泵的节流阀40的相对侧被切断时切断压力，并且蒸发的燃料浓度被清除到进气通道从压力传感器50的检测信号测量来自第一罐34的净化阀34的经由净化阀36的数据。ECU60对各节点40中的节流阀40，泵42，电磁阀44,46及压力传感器50等的异常进行诊断处理蒸发燃料浓度的测量，吹扫和泄漏检查。版权所有（C）2007，JPO＆INPIT

29. 发明专利

JP2007077950A Evaporating fuel treatment device 有权
标题翻译：蒸发燃料处理设备
公开(公告)号：JP2007077950A
公开(公告)日：2007-03-29
申请号：JP2005269867
申请日：2005-09-16
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANO MASAO , TAKAKURA SHINSUKE , AMANO NORIYASU , KIYOMIYA SHINSUKE , NISHIMURA YUSAKU
IPC分类号： F02M25/08
CPC分类号： F02M25/0836 , F02D41/0045 , F02D2200/0406 , F02D2200/703 , F02D2250/41 , F02M25/089
摘要： PROBLEM TO BE SOLVED: To provide an evaporating fuel treatment device for increasing the frequency of purge and the amount of the purge. SOLUTION: Cut-off pressure, which a differential pressure sensor 40 detects when a pump 22 is operated and a throttle 34 provided in a detection passage 112 is shut off at its atmosphere side, and air pressure, which the differential pressure sensor 40 detects when the throttle 34 is communicated with the atmosphere and air passes through the throttle 34, are detected during purge. Mixture pressure of an air-evaporating fuel mixture, which the differential pressure sensor 40 detects when the throttle 34 is communicated with a first canister 12 and the air-evaporating fuel mixture passes through the throttle 34, is detected during purge stop. An ECU 30 calculates the evaporating fuel concentration of the mixture to be purged from the first canister 12 to a suction passage 16 in accordance with the cut-off pressure, the air pressure and the mixture pressure. The opening of a purge valve 14 is set in accordance with the calculated evaporating fuel concentration. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于增加吹扫频率和吹扫量的蒸发燃料处理装置。解决方案：差压传感器40在泵22运行时检测到的切断压力和设置在检测通道112中的节气门34在其大气侧被切断，以及空气压力，差压传感器当检测到节气门34与大气连通并且空气通过节流阀34时，在吹扫期间检测到。在净化停止期间检测空气蒸发燃料混合物的混合压力，其中差压传感器40在节流阀34与第一罐12连通并且空气蒸发燃料混合物通过节流阀34时检测到。 ECU30根据截止压力，空气压力和混合压力，计算从第一罐12向吸入通道16排出的混合物的蒸发燃料浓度。根据计算的蒸发燃料浓度来设定清洗阀14的打开。版权所有（C）2007，JPO＆INPIT

30. 发明专利

JP2006312925A Fuel vapor treatment apparatus 有权
标题翻译：燃油蒸气处理设备
公开(公告)号：JP2006312925A
公开(公告)日：2006-11-16
申请号：JP2005291437
申请日：2005-10-04
申请人： Denso Corp , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANO MASAO , TAKAKURA SHINSUKE , NAKANO TOMOAKI , AMANO NORIYASU , KIYOMIYA SHINSUKE , NISHIMURA YUSAKU
IPC分类号： F02M25/08
CPC分类号： F02M25/089 , F02D41/0032 , F02D41/0045
摘要： PROBLEM TO BE SOLVED: To provide a fuel vapor treatment apparatus accurately measuring a fuel vapor concentration. SOLUTION: The fuel vapor treatment apparatus is provided with a first cansiter adsorbing fuel vapor, a purge passage 27 purging desorbed vapor from the first canister 12 to an intake passage 3, an atmosphere passage 30 opened to the atmosphere, a first detection passage 28 having a restrictor 50, a passage changing valve 20 changing a communication passage of the first detection passage 28 between the passages 27 and 30, a second canister 13 communicated with the first detection passage 28 in an opposite side to the passage changing valve 20 across the restrictor 50 in between to adsorb fuel vapor flowng in from the first detection passage 28, a second detection passage 32 communicated with the second canister, a differential pressure sensor 16 detecting a differential pressure between both ends of the restrictor 50, a pump 14 communicated with the second detection passage 32 and carrying out pressure reduction of the second detection passage 32 during a detection period of the differential pressure by the differential pressure sensor 16, and an ECU 38 calculating the fuel vapor concentration on the basis of a detection result of the differential pressure sensor 16. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种精确测量燃料蒸气浓度的燃料蒸汽处理装置。解决方案：燃料蒸汽处理装置设置有第一罐吸附燃料蒸气，净化通道27，其从第一罐12向吸入通道3吹扫解吸的蒸气，向大气开放的气氛通道30，第一检测具有节流器50的通道28，改变通道27和30之间的第一检测通道28的连通通道的通道切换阀20，与通道切换阀20相对的一侧与第一检测通道28连通的第二罐13 跨越限制器50，以吸收从第一检测通道28流入的燃料蒸汽，与第二罐连通的第二检测通道32，检测限制器50的两端之间的压差的差压传感器16，泵14 与第二检测通道32连通，并在差异检测期间进行第二检测通道32的减压基于压差传感器16的检测结果计算出燃料蒸气浓度的ECU38，通过差压传感器16的临时压力。（C）2007，JPO＆INPIT

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