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1. 发明专利

JP2006161690A Fuel vapor treatment device 有权
标题翻译：燃油蒸汽处理装置
公开(公告)号：JP2006161690A
公开(公告)日：2006-06-22
申请号：JP2004354507
申请日：2004-12-07
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： F02D41/0045 , F02D41/004 , F02D2200/703 , F02M25/089
摘要： PROBLEM TO BE SOLVED: To provide a fuel vapor treatment device accurately measuring fuel vapor concentration in a short period of time. SOLUTION: This device is provided with a canister 12 adsorbing fuel vapor, a purge passage 27 leading air fuel mixture containing vapor desorbing from the canister 12 to an air intake passage 3, an atmospheric air passage 30 opening to atmospheric air, a detection passage 28 including a throttle 50, a passage change over valve changing a communication passage of the detection passage 28 between the purge passage 27 and the atmospheric passage 30, a pump 14 communicating to the detection passage 28 in an opposite side of the passage change over valve 20 over the throttle 50, a differential pressure sensor 16 detecting pressure difference between both ends of the throttle 50, and ECU 38 calculating fuel vapor concentration in air fuel mixture based on detection result of the differential pressure sensor 16. Pressure difference is detected by the differential pressure sensor 6 in detection period until air fuel mixture reaches the pump 14, after the passage change over valve 20 makes communication between the purge passage 27 and the detection passage 28 after air fuel mixture passes the throttle 50 and the pump 14 reduces pressure in the detection passage 28 to make air fuel mixture pass through the throttle 50. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在短时间内精确测量燃料蒸气浓度的燃料蒸汽处理装置。解决方案：该装置设置有吸附燃料蒸气的罐12，引导空气燃料混合物的吹扫通道27，其包含从罐12解吸到蒸气进气通道3的空气燃料混合物，与大气隔开的大气通道30，包括节流阀50的检测通道28，改变清洗通道27和大气通道30之间的检测通道28的连通通道的通道换向阀，在通道变化的相反侧与检测通道28连通的泵14 超过节流阀50的过压阀20，检测节气门50两端的压力差的差压传感器16以及基于差压传感器16的检测结果计算空气燃料混合物中的燃料蒸气浓度的ECU38。检测压力差通过差压传感器6，直到空气燃料混合物到达泵14的检测期间，在通过阀20之后转换为c 在空气燃料混合物通过节流阀50和泵14之后，净化通道27和检测通道28之间的通风降低了检测通道28中的压力，使得空气燃料混合物通过节流阀50.版权所有（C）2006 ，JPO＆NCIPI

2. 发明专利

JP2007211655A Evaporated-fuel treatment device 有权
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2007211655A
公开(公告)日：2007-08-23
申请号：JP2006031278
申请日：2006-02-08
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： NISHIMURA YUSAKU , KANO MASAO , TAKAKURA SHINSUKE , AMANO NORIYASU
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To increase the durability of an evaporated-fuel treatment device by detecting the state of evaporated fuel at proper timings.
SOLUTION: An ECU performs a program including steps of: (S102) operating a timer until a predetermined time is elapsed when the purge of fuel is turned off (YES in S100); (S104) turning on a solenoid valve; (S108) detecting the concentration of the evaporated fuel when the pressure detected by a differential pressure sensor is equal to or higher than a predetermined threshold Pa (YES in S106); and (S110) calculating the purged amount of fuel.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过在合适的时间检测蒸发燃料的状态来提高蒸发燃料处理装置的耐久性。解决方案：ECU执行程序，包括以下步骤：（S102）操作定时器，直到在燃料清除被关闭时经过预定时间（S100中为“是”）; （S104）接通电磁阀; （S108）当由差压传感器检测到的压力等于或高于预定阈值Pa时检测蒸发燃料的浓度（S106中为“是”）。和（S110）计算清除燃料量。版权所有（C）2007，JPO＆INPIT

3. 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

4. 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

5. 发明专利

JP2006291709A Gas density ratio detection device, concentration detection device and fuel vapor treatment device 有权
标题翻译：气体密度比检测装置，浓度检测装置和燃料蒸气处理装置
公开(公告)号：JP2006291709A
公开(公告)日：2006-10-26
申请号：JP2005108881
申请日：2005-04-05
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： TAKAKURA SHINSUKE , KANO MASAO , AMANO NORIYASU , KIYOMIYA SHINSUKE , NISHIMURA YUSAKU
IPC分类号： F02M25/08 , G01F1/42
CPC分类号： F02D41/0045 , F01N11/007 , F02D41/0032 , F02M25/089
摘要： PROBLEM TO BE SOLVED: To provide a gas density ratio detection device accurately detecting density ratio of a plurality of kinds of gas.
SOLUTION: This device is provided with: a measurement passage 24 having a plurality of kinds of gas flowing in from an upstream side end part at different timing; a pump communicating to a downstream side end part of the measurement passage 24 to reduce pressure in the measurement passage; an orifice 14 provided in a middle part of the measurement passage 24 and reducing passage area of the measurement passage 24; an exfoliation suppression means 16 suppressing exfoliation of the plural kinds of gas from an inner wall surface 24c of the measurement passage 24 at the downstream side more than the orifice 14; a measurement means measuring pressure difference between both ends of the orifice 14 or flow rate of gas passing through the orifice 14 under a condition where pressure in the measurement passage is reduced by the pump; and a density ratio calculation means calculating density ratio of the plural kinds of gas based on pressure difference or flow rate measured by the measuring means.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种准确地检测多种气体的密度比的气体密度比检测装置。解决方案：该装置具有：测量通道24，其具有在不同时机从上游侧端部流入的多种气体; 与测量通道24的下游侧端部连通以减小测量通道中的压力的泵; 设置在测量通道24的中间部分并减小测量通道24的通道面积的孔14; 剥离抑制装置16，抑制多个气体从比测量通道24的内壁面24c在下游侧多于孔口14的剥离; 在测量通道中的压力被泵减小的情况下，测量孔14的两端之间的压力差或通过孔14的气体的流量; 并且密度比计算装置根据由测量装置测量的压力差或流量计算多种气体的密度比。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2009062967A Controller for hybrid automobile 审中-公开
标题翻译：混合动力汽车控制器
公开(公告)号：JP2009062967A
公开(公告)日：2009-03-26
申请号：JP2007234035
申请日：2007-09-10
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： TAKAKURA SHINSUKE , KATO YASUO , KANO MASAO , NISHIMURA YUSAKU
IPC分类号： F02M25/08 , B60K6/445 , B60W10/06 , B60W10/30 , B60W20/00 , F02D29/02
CPC分类号： F02D41/0032 , B60K6/48 , F02D2250/41 , F02N11/0829 , Y02T10/48 , Y02T10/6221
摘要： PROBLEM TO BE SOLVED: To provide a hybrid automobile equipped with a fuel vapor processing device capable of lessening the frequency of an internal-combustion engine being operated for purging. SOLUTION: The fuel vapor processing device 10 is equipped with a sensing passage 28 having a narrowed part 50 on the way of passage, a pump 14 to generate a gas flow in the sensing passage 28, and a differential pressure sensor 16 to sense the pressure loss at the narrowed part 50, and calculates the fuel vapor concentration on the basis of a pressure loss when the air flows through the sensing passage 28 and a pressure loss when a mixture gas from a canister 12 flows through the sensing passage 28. When the calculated fuel vapor concentration has reached the prescribed value, the engine 100 is started, and supplying the engine 100 with the vaporized fuel sucked to the canister 12 is started. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种配备有能够减少正在操作以进行清洗的内燃机的频率的燃料蒸气处理装置的混合动力汽车。解决方案：燃料蒸汽处理装置10配备有在通路上具有变窄部分50的感测通道28，在感测通道28中产生气流的泵14和差压传感器16 感测在变窄部分50处的压力损失，并且基于空气流过感测通道28时的压力损失和当来自罐12的混合气体流过感测通道28时的压力损失来计算燃料蒸气浓度当计算出的燃料蒸气浓度达到规定值时，起动发动机100，向发动机100供给被吸入到罐12的蒸发燃料。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2013194602A Evaporated fuel treatment device 审中-公开
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2013194602A
公开(公告)日：2013-09-30
申请号：JP2012062319
申请日：2012-03-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NISHIMURA YUSAKU
IPC分类号： F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To provide a fuel evaporation treatment device in which the inside of a fuel tank can be sealed while an internal combustion engine is stopped and a negative pressure can be also introduced to a fuel tank or a canister in the case of leak diagnosis without increasing the weight or cost or without generating rapid pressure fluctuation or rapid gas inflow in an intake passage during purge control.SOLUTION: When introducing a negative pressure to a fuel tank, an atmosphere opening/closing valve is opened (S402). Therefore, rapid pressure fluctuation or gas inflow is prevented in an intake passage. Since the atmosphere opening/closing valve is opened or a target negative pressure is present (S404), an excessive negative pressure or high pressure can be prevented and weight increase or cost increase is prevented as a result. After first negative pressure generation (S402, S403), second negative pressure generation (S406, S403) is executed. Therefore, while the atmosphere opening/closing valve is opened, even if a negative pressure is lacked, a sufficient negative pressure is generated by closing the atmosphere opening/closing valve and can be held by closing a sealing valve (S408). A configuration where leak diagnosis can be performed on the fuel tank and a canister by negative pressure introduction is maintained by the sealing valve, the atmosphere opening/closing valve and a purge control valve.
摘要翻译：要解决的问题：提供一种燃料蒸发处理装置，其中在内燃机停止时可以密封燃料箱的内部，并且在泄漏的情况下也可以将负压也引入燃料箱或罐中诊断，而不增加重量或成本，或在清洗控制期间不会在进气通道中产生快速压力波动或快速气体流入。解决方案：当向燃料箱引入负压时，打开大气开/关阀（S402）。因此，在进气通道中可以防止快速的压力波动或气体流入。由于大气开/关阀打开或存在目标负压（S404），所以可以防止过大的负压或高压，结果防止重量增加或成本增加。在第一负压产生（S402，S403）之后，执行第二负压产生（S406，S403）。因此，在大气开闭阀打开的同时，即使没有负压，也可以通过关闭大气开闭阀而产生足够的负压，能够通过关闭密封阀来保持（S408）。可以通过密封阀，大气开闭阀和净化控制阀来维持通过负压引入对燃料箱和罐进行泄漏诊断的结构。

8. 发明专利

JP2012036769A Leak detection method in fuel supply system, and leak diagnosis device in the fuel supply system 有权
标题翻译：燃料供应系统中的泄漏检测方法和燃料供应系统中的泄漏诊断装置
公开(公告)号：JP2012036769A
公开(公告)日：2012-02-23
申请号：JP2010175492
申请日：2010-08-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NISHIMURA YUSAKU
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide a leak detection method for a fuel supply system that detects a leak state in a fuel supply system of an internal combustion engine with high accuracy without depending on a pressure sensor and can perform an accurate diagnose, and to provide a leak detection method in a fuel supply system.SOLUTION: The leak detection method seals a fuel tank to be an airtight state by a seal valve (S108). The leak detection method detects a deformation quantity in a profile of the fuel tanks as a deformation quantity ΔSGL between an initial fuel liquid level SGLini and a fuel liquid surface level SGLa after a predetermined time DTa passes by using a fuel sender gauge (S106, S110-S114). The leak detection method performs the leak determination (S116-S120) by the liquid surface change quantity ΔSGL. Since the leak determination is based on differences in the inside and outside of the profile, a pressure relationship between the inside and the outside is properly reflected, and an accurate leak diagnosis can be performed without using the pressure sensor.
摘要翻译：要解决的问题：提供一种用于在不依赖于压力传感器的情况下以高精度检测内燃机的燃料供应系统中的泄漏状态的燃料供应系统的泄漏检测方法，并且可以执行精确的诊断，并且在燃料供给系统中提供泄漏检测方法。解决方案：泄漏检测方法通过密封阀将燃料箱密封成气密状态（S108）。泄漏检测方法通过使用燃料发送器规格，在预定时间DTa通过之后，检测燃料箱的轮廓中的变形量，作为初始燃料液面SGLini和燃料液面高度SGLa之间的变形量ΔSGL（S106，S110 -S114）。泄漏检测方法通过液面变化量ΔSGL进行泄漏判定（S116〜S120）。由于泄漏确定是基于轮廓的内部和外部的差异，所以内部和外部之间的压力关系被适当地反映，并且可以在不使用压力传感器的情况下执行准确的泄漏诊断。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2015057551A 蒸発燃料処理装置审中-公开
标题翻译：蒸发燃料处理装置
公开(公告)号：JP2015057551A
公开(公告)日：2015-03-26
申请号：JP2014258369
申请日：2014-12-22
申请人：愛三工業株式会社 , Aisan Ind Co Ltd , トヨタ自動車株式会社 , Toyota Motor Corp
发明人： YAMAMOTO NORINAGA , KURATA TSUNEYUKI , HAYAKAWA MASAMITSU , KOSUGI TAKASHI , SHIMOKAWA SHINJI , KOBAYASHI SHOEI , KIYOMIYA SHINSUKE , NISHIMURA YUSAKU
IPC分类号： F02M25/08
摘要：【課題】蒸発燃料の脱離効率を向上し、残存量及び吹き抜け量を低減することのできる蒸発燃料処理装置を提供する。【解決手段】蒸発燃料処理装置10は、タンクポート17、パージポート18及び大気ポート19を有し、少なくともガス通路の直線状の流通方向に隣接する第1吸着室46及び第2吸着室48が形成されるケース12と、各吸着室46,48,33にそれぞれ充填された吸着体50とを備える。第1吸着室46及び第2吸着室48の間に空間室40が形成される。第1吸着室46を、第2吸着室48の通路断面積よりも小さい通路断面積で形成する。空間室40は、第2吸着室48と同等の通路断面積でかつ該吸着室48から第1吸着室46に向かって連続状に延びる主空間部57を備える。【選択図】図1
摘要翻译：要解决的问题：提供一种能够提高蒸发燃料的解吸效率并减少残留量和窜气量的蒸发燃料处理装置。解决方案：蒸发燃料处理装置10包括：壳体12，其具有罐端口17，净化端口18和大气口19，并且形成有至少沿气体通道的线性流动方向邻接的第一吸附室46和第二吸附室48; 以及填充在各吸附室46,48,33中的吸附剂50.在第一吸附室46和第二吸附室48之间形成有空间室40.第一吸附室46形成为通过截面积小于第二吸附室48的通道横截面积。空间室40设置有主空间部57，该主空间部57具有与第二吸附室48相同的通路截面积，并从吸附室48连续地延伸朝向第一吸附室46。

10. 发明专利

JP2013241912A Liquid submerged portion fuel leakage diagnostic apparatus 有权
标题翻译：液体泄漏部分燃油泄漏诊断装置
公开(公告)号：JP2013241912A
公开(公告)日：2013-12-05
申请号：JP2012116604
申请日：2012-05-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NISHIMURA YUSAKU
IPC分类号： F02M25/08
CPC分类号： G01M3/025 , G01M3/3245
摘要： PROBLEM TO BE SOLVED: To provide a system that diagnoses the presence or absence of leakage of fuel from a liquid submerged portion of a fuel tank for an internal combustion engine.SOLUTION: When a fuel surface level SGL is decreased (YES in S308) while no fuel is consumed (Fm=OFF: NO in S306), it is determined that there is fuel leakage from the liquid submerged portion of the fuel tank. However, when abnormal fuel vapor leakage is determined (YES in S311), it is not clear whether it is caused by fuel vapor leakage or fuel leakage of the liquid submerged portion. If the fuel surface level SGL is not reduced (NO in S308), it may not be influenced on the fuel surface level SGL in spite of abnormal fuel vapor leakage. When abnormal fuel vapor leakage is determined (YES in S311), determination (S312) on abnormal fuel leakage on the liquid submerged portion cannot be performed, while determination on normal fuel leakage on the liquid submerged portion can be performed (S310). Fuel leakage on the liquid submerged portion of the fuel tank can be determined, and further, diagnostic frequency for fuel leakage on the liquid submerged portion can be raised.
摘要翻译：要解决的问题：提供一种诊断来自用于内燃机的燃料箱的液体浸没部分的燃料泄漏的存在或不存在的系统。解决方案：当燃料表面水平SGL降低（S308中为是）同时没有燃料消耗（S306中为Fm = OFF：否），确定燃料箱的液体浸没部分存在燃料泄漏。但是，在判定为异常燃料蒸气泄漏的情况下（S311中为“是”），不清楚是否由液体浸没部的燃料蒸气泄漏或燃料泄漏引起。如果燃油表面水平SGL不降低（S308中为“否”），则尽管燃料蒸汽泄漏异常，也可能不影响燃料表面水平SGL。当确定了异常的燃料蒸汽泄漏时（S311中为“是”），在液体淹没部分的正常燃料泄漏确定可以进行的情况下，不能进行关于液体淹没部分的异常燃料泄漏的判定（S312）（S310）。可以确定燃料箱的液体浸没部分上的燃料泄漏，此外，可以提高液体浸没部分上的燃料泄漏的诊断频率。

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