-
公开(公告)号：JP2003049639A
公开(公告)日：2003-02-21
申请号：JP2001241239
申请日：2001-08-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KATAYAMA AKIHIRO , SAWADA YUTAKA , NAGAI TOSHINARI , UCHIDA TAKAHIRO , KATO NAOTO , KUZE YASUHIRO
CPC classification number: Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of further improving exhaust emission control performance using the oxygen storage capacity of exhaust emission control catalyst.
SOLUTION: This catalyst exhaust emission control device for the internal combustion engine comprises storage capacity calculating means 18, 25, and 26 for calculating the oxygen storage capacity of the exhaust emission control catalyst 19 disposed on an exhaust passage 7 of the internal combustion engine 1, and a use banning means 18 that determines whether or not a predetermined banning condition is satisfied and, when the predetermined banning condition is satisfied, bands the use of the latest oxygen storage capacity calculated by the storage capacity calculating means instead of the oxygen storage capacity used until then. Further correct exhaust emission control is allowed by banning the use of the latest calculated oxygen storage capacity when the predetermined banning condition is satisfied, namely by preventing for use for the exhaust emission control of the calculated oxygen storage capacity that is concerned to be inaccurate.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种能够使用废气排放控制催化剂的储氧能力进一步提高废气排放控制性能的内燃机的废气排放控制装置。 解决方案：用于内燃机的该催化剂废气排放控制装置包括用于计算设置在内燃机1的排气通道7上的废气排放控制催化剂19的储氧能力的储存容量计算装置18,25和26， 以及确定是否满足预定禁止条件的使用禁止装置18，并且当满足预定禁止条件时，使用由存储容量计算装置计算的最新储氧容量的使用来代替所使用的储氧容量 直到那时。 通过在规定的禁止条件满足时禁止使用最新的计算出的氧气存储容量，即通过防止用于废气排放控制的计算的氧气存储容量的不正确来允许进一步正确的废气排放控制。
-
公开(公告)号：JPH11271287A
公开(公告)日：1999-10-05
申请号：JP7696398
申请日：1998-03-25
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI TOSHINARI , TAKAHASHI TOSHIMITSU
Abstract: PROBLEM TO BE SOLVED: To prevent drop of volatile characteristic determining precision caused by change of a gasoline temperature inside a fuel tank by conducting volatile characteristic determining processing when an engine is under a predetermined specific operation condition (just after cranking at the time of engine start), in a gasoline volatile characteristic determining device using an ultrasonic wave. SOLUTION: Start of cranking accompanied to ignition switch ON is determined in a step 301, and then volatile characteristic determining processing is controlled to be conducted in a limited period when an engine speed (a rotational speed of an engine) is a prescribed value or less in a step 302. Since a volatile characteristic is determined thereby under a specific operation condition of a cranking time at the time of engine start all the time, i.e., under a constant condition, determination precision therefor is improved. As the volatile characteristic is determined before gasoline inside a gasoline piping returns to a fuel tank when an ultrasonic sensor is arranged inside the fuel tank, change of a gasoline temperature inside the fuel tank is eliminated to enhance precision for the volatile characteristic determination.
Abstract translation: 要解决的问题：为了防止当发动机处于预定的特定操作条件（发动机起动之后刚好起动之后）通过进行挥发性特性确定处理而导致由燃料箱内的汽油温度变化引起的挥发性特性确定精度的下降 ），在使用超声波的汽油挥发性特性确定装置中。 解决方案：在步骤301中确定伴随着点火开关ON的启动开始，然后当发动机转速（发动机的转速）为规定值以下时，将挥发性特性确定处理控制为在有限的时间内进行 在步骤302中，由于在发动机起动时的起动时间的特定动作条件下，即在一定的条件下确定了挥发性特性，因此提高了确定精度。 当在汽油管道内的汽油在燃料箱内设置超声波传感器时，汽油管内的汽油返回到燃料箱之前，确定挥发性特性，消除燃料箱内的汽油温度的变化，提高挥发性特性判定的精度。
-
公开(公告)号：JP2007064131A
公开(公告)日：2007-03-15
申请号：JP2005252970
申请日：2005-09-01
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI TOSHINARI , KOJIMA KAZUNORI , ADACHI NORIYASU , KINOSHITA TAKEO
CPC classification number: F02D41/3094 , F02D41/047 , F02D41/123
Abstract: PROBLEM TO BE SOLVED: To reduce the quantity of unburned fuel discharged to an exhaust gas passage upon fuel cut in a dual injection system provided with a port injection valve and a cylinder injection valve. SOLUTION: This fuel injection control device stops only port injection (port injection quantity fip=0) at first when a fuel cut execution condition is satisfied (time t1), and continues cylinder injection by setting cylinder injection quantity fic to a value subtracting "quantity of fuel (adhesion flow in fuel) flowing into a cylinder out of fuel adhesion quantity fw adhering on a intake air passage composition member" from a target air fuel ratio equivalent quantity. Cylinder injection is stopped (fic=0) when fuel adhesion quantity fw which reduces after that gets to the minimum value fwlim1 or less. Consequently, misfire during cylinder injection (time t1 to t2) can be prevented and air fuel ratio can be made consistent with target air fuel ratio. After stop of cylinder injection, the quantity of adhesion flow-in fuel discharged to the exhaust gas passage as unburned fuel due to misfire can be reduced. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：为了减少在设置有端口喷射阀和气缸喷射阀的双喷射系统中燃料切断时排出到排气通道的未燃烧燃料的量。 解决方案：当燃料切断执行条件满足时（t1）时，该燃料喷射控制装置首先停止端口喷射（喷射量fip = 0），并且通过将气缸喷射量fic设定为值来继续气缸喷射 从目标空燃比等效量中减去从附着在进气通道组合构件上的燃料附着量fw中流入气缸的燃料量（燃料中的粘附流量）。 当在此之后减少的燃料附着量fw达到最小值fwlim1或更小时，气缸喷射停止（fic = 0）。 因此，可以防止气缸喷射期间（时间t1至t2）期间的失火，并且可以使空燃比与目标空燃比一致。 在停止气缸喷射之后，可以减少由于失火而以排出的燃料排放到排气通道中的粘附流入燃料的量。 版权所有（C）2007，JPO＆INPIT
-
公开(公告)号：JP2006161787A
公开(公告)日：2006-06-22
申请号：JP2004358802
申请日：2004-12-10
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KOJIMA KAZUNORI , NAGAI TOSHINARI , KINOSHITA TAKEO
Abstract: PROBLEM TO BE SOLVED: To provide a fuel injection quantity control device for an internal combustion engine capable of stabilizing an air-fuel ratio even in transient operation such as a sudden change of throttle valve opening. SOLUTION: This fuel injection quantity control device is applied to the internal combustion engine provided with a dual injection system equipped with two fuel injection valves which are a cylinder injection valve 39C and a port injection valve 39P for every cylinder. The device determines a port injection quantity fip based on a predicted intake air quantity KLfwd obtained from a predicted throttle valve opening in the closed state of an intake valve, at a point of time before the intake valve is closed, and carries out port injection of fuel in the port injection quantity fip. The device accurately computes an actual required total fuel quantity Fcact based on an actual intake air quantity KLact obtained from an actual throttle valve opening in the closed state of the intake valve, immediately after the intake valve is closed, and carries out cylinder injection, setting the shortage portion of an actual cylinder inflow fuel quantity Fcest which actually flowed into the cylinder by port injection to the actual required total fuel quantity Fcact, as a cylinder injection quantity fic. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供即使在诸如节流阀开度的突然变化的瞬变操作中也能够稳定空燃比的内燃机的燃料喷射量控制装置。 解决方案：该燃料喷射量控制装置应用于具有配备有两个燃料喷射阀的双喷射系统的内燃机，该两个喷射阀是用于每个气缸的气缸喷射阀39C和喷嘴阀39P。 该装置基于从进气门关闭状态下的预测节气门开度获得的预测进气量KLfwd，在进气门关闭前的时刻，确定出口喷射量fip，并进行喷油口 燃料在港口喷射量fip。 该装置基于从进气门关闭状态后的实际节气门开度获得的实际进气量KLact，在进气门关闭后立即精确地计算出实际所需总燃料量Fcact，并进行气缸喷射，设定 作为气缸喷射量fic，通过端口喷射实际流入气缸的实际气缸流入燃料量Fcest的短缺部分作为气缸喷射量fic。 版权所有（C）2006，JPO＆NCIPI
-
公开(公告)号：JP2005239065A
公开(公告)日：2005-09-08
申请号：JP2004054569
申请日：2004-02-27
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI TOSHINARI
Abstract: PROBLEM TO BE SOLVED: To provide an air-conditioning control device for a vehicle capable of smoothly maintaining constant speed traveling control even if external vehicle speed variation factor exists.
SOLUTION: The air-conditioning control device for the vehicle is provided with an internal combustion engine 2 mounted on the vehicle 1; a vehicle speed detection means 3 for detecting the vehicle speed of the vehicle 1; constant speed traveling means 15, 17 for maintaining predetermined speed and traveling the vehicle utilizing the detection result of the vehicle speed detection means 3; an air conditioner 5 for driving a variable displacement compressor 6 using an output of the internal combustion engine 2; and a control means 16 for controlling driving of the compressor 6. The vehicle speed variation during traveling that a predetermined speed by the constant speed traveling means 15, 17 is maintained is detected using the vehicle speed detection means 3. The compressor 6 is controlled by the control means 16 so as to suppress the vehicle speed variation. Thereby, an air-conditioning load of the internal combustion engine is adjusted.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：即使存在外部车速变化因素，也能够提供能够平稳地保持恒定行驶控制的车辆的空调控制装置。 解决方案：车辆的空调控制装置设置有安装在车辆1上的内燃机2; 用于检测车辆1的车速的车速检测装置3; 利用车速检测装置3的检测结果来保持预定速度和行驶车辆的恒速行驶装置15,17; 用于使用内燃机2的输出驱动可变排量压缩机6的空调5; 以及用于控制压缩机6的驱动的控制装置16.使用车速检测装置3检测通过恒速行驶装置15,17保持预定速度的行驶期间的车速变化。压缩机6由 控制装置16，以便抑制车速变化。 由此，调节内燃机的空调负荷。 版权所有（C）2005，JPO＆NCIPI
-
Patent Agency Ranking
公开(公告)号：JP2004263591A
公开(公告)日：2004-09-24
申请号：JP2003052811
申请日：2003-02-28
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KATO NAOTO , NAGAI TOSHINARI , OI YASUHIRO , IDE KOJI
CPC classification number: F02D41/0295
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for performing an air-fuel ratio feedback control based on feedback gains for each catalyst part properly set, in an internal combustion engine having a plurality of catalysts (catalyst parts) arranged in series with an exhaust passage. SOLUTION: Over-and-short amount of oxygen in exhaust gas flowing out of first to third catalysts 53 to 55 constituting a catalyst device are calculated, by using a catalyst model in consideration of oxygen occlusion reaction in the catalysts. The feedback gains (proportional gains) of the first to third catalysts 53 to 55 are set to become larger, as a position of the catalyst is nearer to downstream of the exhaust passage. Feedback controlled variables for each catalyst are calculated based on values calculated by multiplying each feedback gain to the over-and-short amount of oxygen. Air-fuel mixture supplied to an engine is feedback-controlled, so that feedback controlled variables for the catalyst device, calculated by summing up the feedback control variables for the catalysts, becomes "0". COPYRIGHT: (C)2004,JPO&NCIPI
-
公开(公告)号：JP2004232647A
公开(公告)日：2004-08-19
申请号：JP2004134130
申请日：2004-04-28
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： NAGAI TOSHINARI , IZUMITANI NAOHIDE , IDE KOJI
IPC: G01N27/41 , F02D35/00 , G01N27/409
Abstract: PROBLEM TO BE SOLVED: To secure favorable startability of an internal combustion engine by controlling energization quantity in preheating in accordance with power consumption of a starter as well as a state of a battery. SOLUTION: This heater control device controls energization to a heater for an air-fuel ratio sensor provided in the internal combustion engine. It is provided with a preheating means to energize the heater before start of the internal combustion engine, a starter power predicting means to predict power consumption of the starter when the internal combustion engine is started, and an energization control means to control an energization state to the heater by the preheating means based on the predicted power consumption. COPYRIGHT: (C)2004,JPO&NCIPI
-
公开(公告)号：JP2004084537A
公开(公告)日：2004-03-18
申请号：JP2002245746
申请日：2002-08-26
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KATO NAOTO , NAGAI TOSHINARI , OI YASUHIRO , IDE KOJI
CPC classification number: Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To maintain a good condition of a catalyst in an exhaust emission control device of an internal combustion engine constituted in a manner that an exhaust passage upstream of the catalyst is switched to either one of two exhaust paths with different lengths. SOLUTION: This exhaust emission control device switches a normally open type electromagnetic switch valve 55, an upstream normally close type electromagnetic switch valve 56, and a downstream normally close type electromagnetic switch valve 57 according to a temperature of a catalyst 53 taken by a catalyst temperature sensor 68, so as to switch to either one of a normal mode for constituting an exhaust passage A and a catalyst cooling mode for constituting an exhaust passage B longer than the exhaust passage A. A proportional gain and an integral gain at the time of feedback controlling an air-fuel ratio of an engine to make output of a catalyst downstream air-fuel ratio sensor 67 to a predetermined target value are set larger when the normal mode is selected, and smaller when the catalyst cooling mode is selected. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2004036475A
公开(公告)日：2004-02-05
申请号：JP2002194210
申请日：2002-07-03
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： IDE KOJI , NAGAI TOSHINARI , OI YASUHIRO , KATO NAOTO
CPC classification number: F02D41/1479 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2570/16 , F02D41/0295 , F02D41/2454 , F02D2200/0814 , F02D2200/0816 , Y02T10/22
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine allowing effective purification of harmful components including unburnt components and nitrogen oxide even in a sudden change in the air-fuel ratio of the engine. SOLUTION: The exhaust emission control device sets a fist catalyst target oxygen storage amount to be a half of the maximum oxygen storage amount of a first catalyst 53 when the calculated oxygen storage amount of a second catalyst 54 is within a preset range including the half of the maximum oxygen storage amount of the second catalyst 54, changes the first catalyst oxygen storage amount to be a preset amount smaller than the half of the maximum oxygen storage amount of the first catalyst 53 when the oxygen storage amount of the second catalyst 54 exceeds the preset range, and changes the first catalyst target oxygen storage amount to be a preset amount larger than the half of the maximum oxygen storage amount of the first catalyst 53 when the oxygen storage amount of the second catalyst 54 is smaller than the preset range. The air-fuel ratio of the engine is controlled so that the calculated oxygen storage amount of the first catalyst 53 sequentially corresponds to the first catalyst target oxygen storage amount. COPYRIGHT: (C)2004,JPO
-
公开(公告)号：JP2010059971A
公开(公告)日：2010-03-18
申请号：JP2009250530
申请日：2009-10-30
Applicant: Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
Inventor： NAGAI TOSHINARI , KURODA YUKIO , KATAYAMA AKIHIRO , KATO NAOTO , SAWADA YUTAKA , UCHIDA TAKAHIRO , KUZE YASUHIRO , BABA NAOKI , KOJIMA SHINJI
IPC: F02D41/14 , B01D53/94 , F01N3/08 , F01N3/24 , F01N3/28 , F01N9/00 , F02D35/00 , F02D41/00 , F02D41/02 , F02D41/22 , F02D43/00 , F02D45/00
CPC classification number: F01N3/0828 , B01D53/9495 , F01N3/2828 , F01N9/005 , F01N2330/06 , F01N2430/06 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2570/16 , F02D41/003 , F02D41/025 , F02D41/1441 , F02D41/1455 , F02D41/1456 , F02D41/1465 , F02D2041/1433 , F02D2200/0802 , Y02T10/26 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To provide an air/fuel ratio control device for an internal combustion engine capable of improving the exhaust gas purifying efficiency of an exhaust gas purifying catalyst by estimating the exhaust amount of a specified component in exhaust gas flowing out of the exhaust gas purifying catalyst (or a representative value representing the condition of exhaust gas) and controlling an air/fuel ratio in accordance with the estimated value. SOLUTION: The air/fuel ratio control device estimates, on the basis of an exhaust air/fuel ratio of exhaust gas flowing into the exhaust purifying catalyst 19 disposed in an exhaust passage 7 of an engine 1, at least one estimation value related to a component increased in the discharge amount during a rich air/fuel ratio, and at least one estimation value related to a component increased in the discharge amount during a lean air/fuel ratio, being at least one representative value indicating the discharge amount of at least one specific component contained in exhaust gas flowing out of the exhaust gas purifying catalyst 19 or a state of the exhaust gas that is flowing out, sets a target state for each estimation value, and controls the air/fuel ratio so that each estimation value reaches its target state. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 解决的问题：提供一种内燃机的空燃比控制装置，其能够通过估计流出的排气中的规定成分的排出量来提高排气净化催化剂的废气净化效率 的废气净化催化剂（或代表废气条件的代表值），并根据该估计值控制空燃比。 解决方案：空燃比控制装置基于流入设置在发动机1的排气通路7中的排气净化催化剂19的废气的排气/燃料比来估计至少一个估计值 与浓空气/燃料比中的排出量增加的成分有关，以及与稀空气/燃料比中的排出量增加的成分有关的至少一个估计值，为表示排出量的至少一个代表值 由废气净化催化剂19流出的废气中所含有的至少一种特定成分或者流出的排气的状态，对各估计值设定目标状态，并且控制空燃比， 估计值达到目标状态。 版权所有（C）2010，JPO＆INPIT
-
-
-
-
-
-
-
-
-
Search Results
175
records
(took 0.039 seconds)
