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11. 发明专利

JP2004116303A Evaporated fuel processing for internal combustion engine 有权
标题翻译：内燃机的蒸发燃料加工
公开(公告)号：JP2004116303A
公开(公告)日：2004-04-15
申请号：JP2002277145
申请日：2002-09-24
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： KONO TAKANAGA , ITAKURA HIDEAKI , KATO NAOYA , MATSUBARA TAKUJI , HYODO YOSHIHIKO
IPC分类号： F02M25/08 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To detect a correct purge gas flow rate in consideration of concentration of evaporated fuel contained in purge gas.
SOLUTION: An ECU 40 calculates reference differential pressure ΔPb from a map of intake pipe pressure Ps, differential pressure ΔPv between before a purge valve and after the purge valve, and differential pressure ΔP100 of air of 100%. In the ECU 40, the calculated reference differential pressure ΔPb is divided by the differential pressure ΔP100 of air of 100% to calculate a reference differential pressure ratio ΔPr, and then an evaporated fuel flow rate Fhc is calculated. The ECU 40 calculates a reduced flow rate ΔFre of the purge gas with respect to a purge gas flow rate F100 of air of 100% by using the reference differential pressure ratio ΔPb, and calculates a true purge gas flow rate Fp. The ECU 40 calculate an air flow rate Fair by using the calculated true purge gas flow rate Fp and evaporated fuel flaw rate Fhc.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：考虑到吹扫气体中所含的蒸发燃料的浓度来检测正确的净化气体流量。解决方案：ECU40根据进气管压Ps的图，净化阀之前和净化阀之间的差压ΔPv以及100％的空气压差ΔP100计算基准压差ΔPb。在ECU40中，将计算出的基准压差ΔPb除以100％的空气压差ΔP100，计算基准压差比ΔPr，求出蒸发燃料流量Fhc。 ECU40通过使用基准压差比ΔPb计算出吹扫气体相对于空气的吹扫气体流量F100的降低的流量ΔFre，并计算真正的净化气体流量Fp。 ECU40通过使用计算出的真实吹扫气体流量Fp和蒸发的燃料缺陷率Fhc来计算空气流量Fair。版权所有（C）2004，JPO

12. 发明专利

JP2003322058A Evaporated fuel processing device of internal combustion engine 审中-公开
标题翻译：内燃机的蒸发燃料加工装置
公开(公告)号：JP2003322058A
公开(公告)日：2003-11-14
申请号：JP2002126990
申请日：2002-04-26
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： KONO TAKANAGA , ITAKURA HIDEAKI , KATO NAOYA , MATSUBARA TAKUJI , HYODO YOSHIHIKO
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide an evaporated fuel processing device for an internal combustion engine in which the evaporated fuel is purged from a canister into the suction passage of the engine so that the engine can operate as specified.
SOLUTION: The evaporated fuel processing device of the internal combustion engine is equipped with the canister 23 for capturing temporarily the evaporated fuel generated in a fuel tank 26 of the engine, a purging passage 22 to couple the canister with the engine suction passage for purging the evaporated fuel captured in the canister into the suction passage 11, and a purge control valve 24 installed in the purging passage for controlling the amount of the evaporated fuel purged from the canister into the suction passage. The device is equipped with a learning function to learn the canister condition learning value representing the amount of the evaporated fuel captured in the canister after the purge control valve is actuated. The target opening of the purge control valve is set on the basis of the canister condition learning value learnt after the actuation directly before of the purge control valve.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于内燃机的蒸发燃料处理装置，其中蒸发的燃料从罐排出到发动机的吸入通道中，使得发动机可以按照规定运行。解决方案：内燃机的蒸发燃料处理装置配备有用于暂时捕获在发动机的燃料箱26中产生的蒸发燃料的罐23，以及将罐与发动机吸入通道连接的清洗通道22 用于将捕集在罐中的蒸发燃料吹扫到吸入通道11中;以及清洗控制阀24，其安装在清洗通道中，用于控制从罐排出到蒸发通道中的蒸发燃料的量。该装置配备有学习功能，以学习表示在清洗控制阀致动之后在罐中捕获的蒸发燃料的量的罐条件学习值。基于在清除控制阀之前直接致动之后学习的罐条件学习值来设定清洗控制阀的目标开度。版权所有（C）2004，JPO

13. 发明专利

JP2003286917A Fuel storing device 审中-公开
标题翻译：燃油储存装置
公开(公告)号：JP2003286917A
公开(公告)日：2003-10-10
申请号：JP2003113364
申请日：2003-04-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ISHIKAWA TAKU , KOBAYASHI SHOEI , HYODO YOSHIHIKO , ITO TAKAAKI , KIDOKORO TORU
IPC分类号： B60K15/077 , B60K15/03 , F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To surely eliminate space above a liquid level of fuel in a fuel storing device.
SOLUTION: The fuel storing device comprises: a film wall 5 forming a fuel chamber 7 and can be deformed depending on fuel amounts in the fuel chamber; a communicating port opened to the space above the liquid level of the fuel in the fuel chamber; cutoff valves 30, 31 opened to open the communicating port when the volume of the space above the liquid level of the fuel is larger than a predetermined volume, and closed to close the communicating port when the volume of the space above the liquid level of the fuel is smaller than the predetermined volume. When the volume of the space above the liquid level of the fuel is larger than the predetermined volume and the cutoff valve is opened, gas in the space above the liquid level of the fuel is discharged from above the liquid level of the fuel by using a means other than oil supply to the fuel chamber, and thereby the volume of the space above the liquid level of the fuel is reduced. When the volume of the space above the liquid level of the fuel is smaller than the predetermined volume, the cutoff valve is opened to stop the discharge of the gas from above the liquid level of the fuel through the communicating port.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：确保消除燃料储存装置中燃料液面以上的空间。解决方案：燃料储存装置包括：膜壁5，形成燃料室7，并且可以根据燃料室中的燃料量而变形; 连通口，其向燃料室内的燃料液面上方的空间开口; 当燃料的液面上方的空间的体积大于预定的体积时，断开阀30,31打开以打开连通口，当空气的液位高于预定的体积时，关闭以关闭连通口燃料小于预定体积。当燃料的液位高于预定体积的空间的体积并且断开阀打开时，燃料液面之上的空间中的气体通过使用燃料的液面从燃料的液面排出意味着除了向燃料室供油的装置，从而降低了燃料液面以上空间的体积。当燃料的液位高于预定体积的空间的体积时，断开阀打开，以通过连通口从燃料的液面上方排出气体。版权所有（C）2004，JPO

14. 发明专利

JP2003049716A Fed fuel vapor collecting device for fuel tank 审中-公开
标题翻译： FED燃油蒸汽收集装置
公开(公告)号：JP2003049716A
公开(公告)日：2003-02-21
申请号：JP2001234998
申请日：2001-08-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YOSHIOKA MAMORU , HYODO YOSHIHIKO
IPC分类号： B60K15/077 , F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To treat fuel vapor in a back pressure chamber while maintaining the operation of a differential pressure valve.
SOLUTION: A vent valve 131 is provided on a breather pipe 13 connecting the fuel tank 11 to a canister 10. The vent valve has a pressure chamber communicating with the fuel tank, isolated from the back pressure chamber with a diaphragm, and it is opened when a predetermined differential pressure is produced between the pressure chamber and the back pressure chamber. Since the fuel vapor exists on the side of the pressure chamber, the back pressure chamber in a sealed structure causes pressure in the back pressure chamber to be increased by the fuel vapor entering through the diaphragm into the back pressure chamber and pressure in the fuel tank to be increased with the vent valve opened. In order to prevent it, each diaphragm is provided with the back pressure chamber and the pressure chamber and a communication hole for communication between the back pressure chamber and the canister. Thus, the fuel vapor entering into the back pressure chamber is discharged to the sides of the canister and the fuel tank to keep the pressure in the back pressure chamber at an approximately atmospheric pressure without giving influences to the operation of the vent valve.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：在保持差压阀的操作的同时，在背压室中处理燃料蒸汽。解决方案：排气阀131设置在将燃料箱11连接到罐10的通气管13上。排气阀具有与燃料箱连通的压力室，与隔膜与背压室隔离，并且打开当在压力室和背压室之间产生预定的压差时。由于燃料蒸气存在于压力室一侧，所以背压室处于密封结构中，由于通过隔膜进入后压室的燃料蒸汽和背压室内的压力在油箱内增加压力随着排气阀打开而增加。为了防止它，每个隔膜设置有背压室和压力室，以及用于在背压室和罐之间连通的连通孔。因此，进入背压室的燃料蒸汽被排放到罐和燃料箱的侧面，以将背压室中的压力保持在大气压力，而不会影响排气阀的操作。

15. 发明专利

JP2003035231A Feed oil control device of closed tank system 有权
标题翻译：封闭油罐系统进油控制装置
公开(公告)号：JP2003035231A
公开(公告)日：2003-02-07
申请号：JP2001220237
申请日：2001-07-19
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , YOSHIOKA MAMORU , KIMURA MASAHIRO
IPC分类号： B60K15/077 , F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To surely prevent excessive feed oil at closed fuel tank feed oil time.
SOLUTION: A solenoid vent valve 131 is arranged in a breather pipe 13 for connecting a liquid level upper space in a closed fuel tank 11 to a canister 10. An electronic control unit(ECU) 30 sets a desired value of a tank internal pressure increasing speed on the basis of a feed oil flow rate when feeding oil to the tank from a feed oil pipe 111, and controls opening-closing of the vent valve so that the tank internal pressure increasing speed detected by a pressure sensor 120 coincides with a target speed. The target pressure increasing speed is determined so that internal pressure becomes pressure for operating an automatic stop mechanism of a feed oil nozzle when a tank inside fuel quantity reaches a target quantity. Thus, when the tank inside fuel quantity reaches the target quantity, an oil feed is surely stopped, and the excessive feed oil is surely prevented so that the occurrence of spitting of fuel when tank internal pressure becomes excessive at oil feed finish time can be prevented.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：确保在封闭的燃油箱进料油时间内防止过量的进料油。解决方案：在通气管13中设置一个电磁排气阀131，用于将封闭的燃料箱11中的液面上部空间连接到罐10.电子控制单元（ECU）30设定罐内压增加的期望值基于从供给油管111向油箱供给油的进给油流量的速度，并且控制排气阀的打开关闭，使得由压力传感器120检测到的罐内部增压速度与目标重合速度。确定目标压力增加速度，使得当内部燃料量达到目标量时，内部压力成为用于操作进给油嘴的自动停止机构的压力。因此，当燃料量达到目标量时，可以肯定地停止供油，并且可以可靠地防止过量的进料油，从而可以防止在进油完成时间时油罐内部压力过大时燃料吐出的发生。

16. 发明专利

JP2003021003A Evaporation fuel collecting device 有权
标题翻译：蒸发燃料收集装置
公开(公告)号：JP2003021003A
公开(公告)日：2003-01-24
申请号：JP2001206776
申请日：2001-07-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , YOSHIOKA MAMORU , KIMURA MASAHIRO
IPC分类号： B60K15/077 , F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To prevent fuel vapor emission during fueling to a fuel tank.
SOLUTION: An electromagnetic type bent valve 131 is arranged in a breather pipe 13 connecting a space above an oil level in a sealed fuel tank 11, with a canister 10. A connecting portion between the breather pipe and the vent valve is provided with an exhaust chamber having a passage cross-section area larger than that of the breather pipe. When fuel vapor in a tank is discharged to the canister 10 by opening and closing the vent valve during fueling, an opening valve time in vent valve opening and closing operation is controlled so that the fuel vapor is expanded by an exhaust chamber pressure, thereby maintaining a low pressure sufficient to liquefy the vapor. The fuel vapor in the tank is discharged to the canister before fueling to reduce a pressure in the tank, so that the fuel vapor in the fuel tank is prevented from emitting to the atmosphere when opening a fuel port 114, one portion of the fuel vapor is liquefied, and is recovered into the fuel tank, thereby allowing to reduce an adsorbent amount in the canister.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了防止在向燃料箱加油期间的燃料蒸汽排放。解决方案：电磁式弯曲阀131布置在通气管13中，该通气管13将密封的燃料箱11中的油位上方的空间与罐10连接。通气管和通气阀之间的连接部分设置有排气腔的通道横截面积大于通气管的通道横截面面积。通过在加油期间打开和关闭排气阀将罐中的燃料蒸汽排放到罐10中，控制排气阀打开和关闭操作中的打开阀时间，使得燃料蒸气通过排气室压力膨胀，从而保持足以使蒸汽液化的低压。燃料箱内的燃料蒸汽在加油之前被排放到罐中以减小罐中的压力，从而当打开燃料口114时，防止燃料箱中的燃料蒸汽向大气中排放，一部分燃料蒸气被液化，并被回收到燃料箱中，从而允许减少罐中的吸附剂量。

17. 发明专利

JP2003013808A Oiling control device of closed fuel tank system 审中-公开
标题翻译：封闭式燃油箱系统的控制装置
公开(公告)号：JP2003013808A
公开(公告)日：2003-01-15
申请号：JP2001199093
申请日：2001-06-29
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , YOSHIOKA MAMORU , KIMURA MASAHIRO
IPC分类号： B60K15/05 , B60K15/03 , B60K15/04 , B60K15/077 , F02M25/08 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To perform efficient oiling of a closed fuel tank.
SOLUTION: A solenoid bent valve 131 is disposed in a breather pipe 13 for connecting a liquid level upper space in the closed fuel tank 11 to a canister 10. When oil is fed from an oil filler 114 to the tank, an electronic control unit(ECU) 30 detects pressure increase speed in the tank in a bent valve closing state with a pressure sensor 120, and sets a timing of opening the bent valve after starting oiling and opening of the bent valve 133 based on the pressure increase speed. The pressure increase speed in the tank corresponds to an oiling flow rate from the oil filler, so that the opening of the bent valve and the valve opening timing are set based on the pressure increase speed, thereby always maintaining the internal pressure in the tank in a suitable range in oiling and allowing efficient oiling having no initial stop and no intrusion of air into the tank.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：对封闭的燃油箱进行有效的加油。解决方案：螺线管弯曲阀131设置在通气管13中，用于将封闭的燃料箱11中的液位上部空间连接到罐10.当油从填料114供给到罐时，电子控制单元 ECU）30利用压力传感器120检测弯曲阀关闭状态下的罐中的升压速度，并且基于加压速度设定在启动加油和弯曲阀133的打开之后打开弯曲阀的正时。油箱中的压力增加速度对应于来自加油器的上油流量，从而基于加压速度设定弯曲阀的打开和阀打开正时，从而始终保持罐内的内部压力适用于上油范围，并允许高效的上油，没有初始停止，也不会空气进入油箱。

18. 发明专利

JP2003002399A Lid opener control device of fuel tank 有权
标题翻译：燃油箱的开启控制装置
公开(公告)号：JP2003002399A
公开(公告)日：2003-01-08
申请号：JP2001190028
申请日：2001-06-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HYODO YOSHIHIKO , YOSHIOKA MAMORU , KIMURA MASAHIRO
IPC分类号： B60S5/02 , B60K15/05 , B67D7/32 , F02M37/00 , B67D5/32
摘要： PROBLEM TO BE SOLVED: To judge the intention of an oil feeding operation carried out by an operator. SOLUTION: An electronic control unit(ECU) 30 measures the duration of an oil feeding signal when a lid releasing switch 140 is actuated by an operator. Only when the duration is longer than a first predetermined time but shorter than a second predetermined time, a bent valve 131 is opened and an evaporated fuel in a fuel tank is evacuated into a canister 10, and hence the inner pressure of the tank is lowered, further, a lid opener 115a is, actuated to release the lid of the oil feeding port, thus an oil feeding operation can be carried out. The first predetermined time and the second predetermined time are the lower limit value and upper limit value (the time duration of a signal) of an ordinary operating time, respectively, when the operator actuates the lid releasing switch, for intending an oil feeding. Thus, an oil feeding can be carried out only when the operator actuates the lid releasing switch, for intending an oil feeding.
摘要翻译：要解决的问题：判断操作员进行的给油操作的意图。解决方案：当操作者致动盖释放开关140时，电子控制单元（ECU）30测量给油信号的持续时间。仅当持续时间长于第一预定时间但短于第二预定时间时，弯曲阀131打开并且燃料箱中的蒸发燃料被抽空到罐10中，因此罐的内部压力降低此外，启动盖开启器115a以释放给油口的盖，从而可以进行给油操作。第一预定时间和第二预定时间分别是当操作者致动盖释放开关以用于供油时的通常操作时间的下限值和上限值（信号的持续时间）。因此，只有当操作者致动盖释放开关以进行供油时才能进行供油。

19. 发明专利

JP2008128011A Control unit of internal combustion engine 审中-公开
标题翻译：内燃机控制单元
公开(公告)号：JP2008128011A
公开(公告)日：2008-06-05
申请号：JP2006310725
申请日：2006-11-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： WATANABE NAOHISA , HYODO YOSHIHIKO
IPC分类号： F02D41/14 , F01N3/20 , F01N3/24 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control unit of internal combustion engine that controls an air-fuel ratio with a good accuracy even if an output value of a downstream side air-fuel ratio detecting means deviates from a true value corresponding to an actual air-fuel ratio due to the effect of methane in an exhaust gas, when controlling an injection amount of fuel based on an air-fuel ratio detected by the downstream side air-fuel retio detecting means provided at downstream side from catalyst in an exhaust route. SOLUTION: The control unit includes methane concentration detecting and estimating means (13, 20) for detecting or estimating the concentration of methane in an exhaust gas at downstream side from catalyst 12 in an exhaust route 11, a downstream side air-fuel ratio detecting means 14 for detecting an air-fuel ratio at downstream side from catalyst in the exhaust route, and a fuel supply quantity correcting means 20 for outputting a fuel correction amount to correct a target value of supply quantity of fuel supplied to an internal combustion engine 1, wherein fuel correction amount is corrected based on the concentration of methane detected or estimated by the methane concentration detecting and estimating means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使下游侧空燃比检测装置的输出值偏离对应于下一侧空燃比检测装置的真实值，也提供一种内燃机的控制单元，该控制单元以高精度控制空燃比由于排气中的甲烷的影响而实际的空燃比，当基于由设置在下游侧的下游侧空气燃料检测装置检测到的空燃比来控制燃料的喷射量时，排气路线。解决方案：控制单元包括甲烷浓度检测和估计装置（13,20），用于检测或估计在排气路径11中的催化剂12下游侧的排气中的甲烷浓度，下游侧空气燃料用于检测排气路径中的催化剂下游侧的空燃比的比率检测单元14以及燃料供给量校正单元20，输出用于校正供给到内燃的燃料供给量的目标值的燃料校正量发动机1，其中燃料校正量基于由甲烷浓度检测和估计装置检测或估计的甲烷的浓度来校正。版权所有（C）2008，JPO＆INPIT

20. 发明专利

JP2007077995A Exhaust emission control device for lean burn internal combustion engine 有权
标题翻译：用于LEAN燃烧内燃机的排气控制装置
公开(公告)号：JP2007077995A
公开(公告)日：2007-03-29
申请号：JP2006337462
申请日：2006-12-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAGI NAOYA , MURAI TOSHIMI , HYODO YOSHIHIKO
IPC分类号： F02D41/04 , F01N3/08 , F01N3/24 , F01N3/28 , F02D41/02 , F02D45/00 , F02M25/08
CPC分类号： Y02T10/44 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To reliably eliminate nitrogen oxide stored in a nitrogen oxide storage/reduction catalyst without causing instable combustion of a mixture while utilizing evaporating fuel generated in a fuel tank for a lean burn internal combustion engine. SOLUTION: The exhaust emission control device comprises a gas condition discriminating means for discriminating the condition of evaporating fuel gas to be supplied to an intake system for the lean burn internal combustion engine, and an exhaust gas condition control means for selectively controlling a fuel injection valve or a gas supply means depending on the condition of the evaporating fuel gas at a timing for eliminating and releasing nitrogen oxide stored in the nitrogen oxide storage/reduction catalyst provided in an exhaust system for the lean burn internal combustion engine to keep the air/fuel ratio of exhaust gas flowing in the nitrogen oxide storage/reduction catalyst into a desired condition. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：待解决的问题：为了可靠地消除存储在氮氧化物储存/还原催化剂中的氮氧化物，而不会引起混合物的不稳定燃烧，同时利用在稀燃燃烧内燃机的燃料箱中产生的蒸发燃料。解决方案：废气排放控制装置包括：气体鉴别装置，用于鉴别供给稀燃燃烧内燃机的进气系统的燃料气体的蒸发状况;以及排气条件控制装置，用于选择性地控制燃料喷射阀或气体供给装置，其在消除和释放存储在用于稀燃内燃机的排气系统中的氮氧化物储存/还原催化剂中的氮氧化物的定时处于蒸发燃料气体的状态，以保持在氮氧化物储存/还原催化剂中流动的废气的空气/燃料比达到所需条件。版权所有（C）2007，JPO＆INPIT

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