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11. 发明专利

JP2004346862A Internal combustion engine 审中-公开
公开(公告)号：JP2004346862A
公开(公告)日：2004-12-09
申请号：JP2003146345
申请日：2003-05-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAMA YASUYUKI , YOSHIOKA MAMORU
IPC分类号： F02P5/15 , F02D21/08 , F02D41/06 , F02D41/08 , F02M25/07
CPC分类号： F02M26/06 , F02M26/23
摘要： PROBLEM TO BE SOLVED: To reduce the generation of NOx as small as possible even when the atmospheric pressure is changed. SOLUTION: This internal combustion engine comprises a system for introducing an exhaust gas into a combustion chamber 5. An air/fuel ratio is controlled to be approximately a theoretical air/fuel ratio. The fuel injection is increased when the atmospheric pressure is lower than a predetermined pressure. COPYRIGHT: (C)2005,JPO&NCIPI

12. 发明专利

JP2004324493A Air-fuel ratio control device for internal combustion engine 有权
公开(公告)号：JP2004324493A
公开(公告)日：2004-11-18
申请号：JP2003118900
申请日：2003-04-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAMA YASUYUKI , YOSHIOKA MAMORU
IPC分类号： F02D45/00 , F01N3/00 , F01N3/20 , F01N3/24 , F02D41/12 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device capable of promptly detecting activity of a downstream side air-fuel ratio detecting means while preventing a harmful component from being discharged into atmosphere. SOLUTION: The air-fuel ratio control device is provided with an emission control catalyst 21, an upstream side air-fuel ratio detecting means 26, the downstream side air-fuel ratio detecting means 27, and an activity determination means determining if the downstream side air-fuel ratio detecting means is in an active state or not and sets a fuel injection amount so that an air-fuel ratio detected by the upstream side air-fuel ratio detecting means matches a target air-fuel ratio. The air-fuel ratio control device is further provided with a catalyst temperature detecting means detecting the temperature of the emission control catalyst, and sets the target air-fuel ratio based on the temperature of the emission control catalyst detected by the catalyst temperature detecting means when the activity determination means determines that the downstream side air-fuel ratio detecting means is in a non-active state. COPYRIGHT: (C)2005,JPO&NCIPI

13. 发明专利

JP2004050878A Device and method for controlling internal combustion engine 有权
公开(公告)号：JP2004050878A
公开(公告)日：2004-02-19
申请号：JP2002207744
申请日：2002-07-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAMA YASUYUKI , YOSHIOKA MAMORU
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F02D29/00 , F02D29/02 , F02D41/12 , F02D45/00 , B60K41/06 , B60K41/00 , B60K41/08
摘要： PROBLEM TO BE SOLVED: To control fuel cut so as to suppress the degradation of a catalyst under a high-temperature lean atmosphere, and to ensure a desired deceleration feeling. SOLUTION: When the catalyst for emission control of an engine is in a high temperature (Step S100), and it is determined that a predetermined deceleration operating condition is established, the fuel cut is prohibited once (Step S120). Thereafter, if there is shift-up to a highest speed gear when an elapsed time t is within a predetermined reference time t0, the fuel cut is continuously prohibited (Step S140). Catalyst degradation attributable to the fuel cut can be prevented thereby. When the shift-up does not reach the highest speed gear when the elapsed time t is within the predetermined reference time t0, the fuel cut is performed. Thus, the required deceleration feeling is not impaired. COPYRIGHT: (C)2004,JPO

14. 发明专利

JP2014234807A 内燃機関审中-公开
标题翻译：内燃机
公开(公告)号：JP2014234807A
公开(公告)日：2014-12-15
申请号：JP2013118829
申请日：2013-06-05
申请人：トヨタ自動車株式会社 , Toyota Motor Corp
发明人： UMEZAWA KOJI , KONDO SHINYA , TAKAMA YASUYUKI , TSUKAMOTO RYOSUKE
IPC分类号： F01N3/18 , F01N3/20 , F01N3/24 , F01N3/32 , F02D9/02 , F02D41/02 , F02D41/06 , F02D43/00 , F02D45/00 , F02P5/145
摘要：【課題】二次空気供給装置のエアポンプの異常を精度よく検出する。【解決手段】内燃機関は、筒内燃料噴射弁および二次空気供給装置を備え、二次空気供給装置は、エアポンプと、二次空気供給通路の圧力を検出する圧力検出器とを含む。内燃機関は、二次空気供給装置を駆動する第1の触媒暖機制御と、点火プラグの周りの燃料濃度を上昇させ、点火時期を遅角し、吸入空気量を増大する第2の触媒暖機制御とを実施する。内燃機関は、第1の触媒暖機制御を開始した後に第1の吸入空気量および第1の二次空気供給通路の圧力を検出し、更に第2の触媒暖機制御を開始した後に、第2の吸入空気量および第2の二次空気供給通路の圧力を検出し、これらの吸入空気量および二次空気供給通路の圧力に基づいてエアポンプの吐出性能を推定する。【選択図】図6
摘要翻译：要解决的问题：以高精度检测二次空气供给装置的空气泵的异常。解决方案：内燃机包括缸内燃料喷射阀和二次空气供应装置。二次空气供给装置包括空气泵和检测二次空气供给通道的压力的压力检测器。内燃机执行用于驱动二次空气供给装置的第一催化剂预热控制和用于增加火花塞周围的燃料浓度的第二催化剂预热控制，延迟点火时间和增加进气量。在控制第一催化剂预热之后，内燃机检测第一进气量和二次空气供给通道的第一压力，在开始控制之后进一步检测第二进气量和二次空气供给通道的第二压力的第二催化剂预热，并且基于进气量和二次空气供给通道的压力来估计空气泵的排放性能。

15. 发明专利

JP2013249792A Catalyst protection device for internal combustion engine 有权
标题翻译：用于内燃机的催化保护装置
公开(公告)号：JP2013249792A
公开(公告)日：2013-12-12
申请号：JP2012126029
申请日：2012-06-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KONDO SHINYA , TAKAMA YASUYUKI , ASO KOJI
IPC分类号： F02D41/04 , F01N3/20 , F01N3/24
CPC分类号： F01N3/2033 , F01N3/2066 , F01N11/002 , F01N2550/02 , F01N2900/1602 , F02D41/0235 , F02D41/3005 , F02D2041/0265 , F02D2200/0802 , F02D2200/0804 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To appropriately reduce an OT (Over Temperature Protection) increase value within a range where OT can be avoided.SOLUTION: A catalyst protection device includes: a bed temperature acquisition means, which acquires normal temperature and a current bed temperature of an exhaust gas purifying catalyst disposed in an exhaust system of an internal combustion engine; a base increase value calculation means, which calculates a base increase value that is a base value of an increase value of a fuel injection amount injected by a fuel injection valve included in the internal combustion engine, in order to cool the catalyst when the current bed temperature exceeds a predetermined determination value; a correcting means, which acquires a corrected increase value by correcting the base increase value using a correction coefficient that is calculated by incorporating a value of a target bed temperature set to a value lower than the determination value; and an injection amount increasing means, which selects any one of the base increase value and the corrected increase value. With the protection device, an excessive reduction in a base increase value is avoided.
摘要翻译：要解决的问题：适当降低在OT可以避免的范围内的OT（过温保护）增加值。解决方案：催化剂保护装置包括：床温获取装置，其获取正常温度和当前床温排气净化催化剂，其设置在内燃机的排气系统中; 基础增加值计算装置，其计算作为在内燃机中包括的燃料喷射阀喷射的燃料喷射量的增加值的基值的基础增加值，以便当当前床温度超过预定的确定值; 校正装置，其通过使用通过将设定的目标床温度的值合并为低于确定值的值而计算的校正系数来校正基础增加值来获取校正的增加值; 以及喷射量增加装置，其选择基础增加值和校正的增加值中的任一个。利用保护装置，避免了基础增加值的过度减少。

16. 发明专利

JP2011196199A Degradation diagnosis system of hc adsorption material 审中-公开
标题翻译： HC吸附材料的降解诊断系统
公开(公告)号：JP2011196199A
公开(公告)日：2011-10-06
申请号：JP2010061509
申请日：2010-03-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAMA YASUYUKI , TAKADA NORIFUMI
IPC分类号： F01N3/20 , F01N3/08
摘要： PROBLEM TO BE SOLVED: To provide a degradation diagnosis system of an HC adsorption material with only one air-fuel ratio detection sensor, the system being able to detect a degradation state of the HC adsorption material.SOLUTION: The degradation diagnosis system of the HC adsorption material (100) includes: the HC adsorption material (40) that adsorbs HC of exhaust and emits the adsorbed HC when a temperature rises to a range of an HC emission temperature; the air-fuel ratio detection sensor (84); exhaust flowing mode switching means (60, 74 and 90) that performs switch between a normal mode where exhaust passes through the HC adsorption material and a bypass mode where the exhaust bypasses the HC adsorption material and flow more downwardly than the HC adsorption material of an exhaust passage; and a degradation detection means (90) that detects the degradation state of the HC adsorption material after the HC is started to be emitted from the HC adsorption material by using sub-feedback correction amount in the normal mode and the sub-feedback correction amount in the bypass mode.
摘要翻译：要解决的问题：为了提供仅具有一个空燃比检测传感器的HC吸附材料的降解诊断系统，该系统能够检测HC吸附材料的降解状态。解决方案：HC的降解诊断系统吸附材料（100）包括：当温度升高到HC排放温度的范围时，吸附排气的HC并释放吸附的HC的HC吸附材料（40）所述空燃比检测传感器（84）; 排气流动模式切换装置（60,74和90），其在排气通过HC吸附材料的正常模式和旁路模式之间进行切换，其中排气绕过HC吸附材料并比HC吸附材料的HC吸附材料更向下流动排气通道以及劣化检测装置（90），其通过使用正常模式下的副反馈修正量和副反馈修正量来检测从HC吸附材料开始HC开始HC吸附材料的劣化状态旁路模式。

17. 发明专利

JP2010151078A Control device for internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2010151078A
公开(公告)日：2010-07-08
申请号：JP2008332399
申请日：2008-12-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAWAMURA ARISUKE , TAKAMA YASUYUKI
IPC分类号： F02D45/00 , F01N3/24 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine estimating a state of a downstream catalyst without using a sensor.
SOLUTION: The control device for the internal combustion engine includes an upstream catalyst 38 and a downstream catalyst 38 disposed in an exhaust gas passage 20 of the engine 2, and an ECU 4 integrating a parameter correlating to an increment of an increased fuel injection quantity further than a fuel injection quantity corresponding to stoichiometric state during the low load operation of the engine 2 and estimating whether the downstream catalyst 40 is in a reduction atmosphere or not based on the calculation result.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在不使用传感器的情况下估计下游催化剂的状态的内燃机的控制装置。解决方案：用于内燃机的控制装置包括设置在发动机2的排气通道20中的上游催化剂38和下游催化剂38，以及将与增加的燃料的增量相关的参数整合的ECU4 喷射量比在发动机2的低负载运转期间与化学计量状态相对应的燃料喷射量进一步，并且基于计算结果来估计下游催化剂40是否处于还原气氛中。版权所有（C）2010，JPO＆INPIT

18. 发明专利

JP2006329015A Control device of internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2006329015A
公开(公告)日：2006-12-07
申请号：JP2005151445
申请日：2005-05-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KITAURA KOICHI , YOSHIOKA MAMORU , TAKAMA YASUYUKI
IPC分类号： F02D45/00 , F02D11/10 , F02D41/04 , F02P5/15
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To generate torque in line with a driver's intention, even when performing its diagnostic control, by accomplishing the diagnostic control in a sufficient frequency requiring establishment of a performance condition related to the intake air volume, in a control device of an internal combustion engine.
SOLUTION: Various diagnostic controls are performed when the intake air volume satisfies a predetermined condition. A throttle valve is controlled by an ordinary characteristic A when the whole diagnostic controls are finished (Step 102), and ordinary ignition timing control is performed (Step 104). When performing at least one diagnostic control, the throttle valve is controlled by a diagnostic time characteristic B lower in sensitivity to an accelerator operation (Step 112). In this case, since an engine load kl becomes excessive in a low accelerator opening area, an ignition timing delay correction is applied to the ignition timing for offsetting the influence of its excessive quantity Δkl (Step 126 to 130).
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了根据驾驶员的意图产生扭矩，即使在执行诊断控制时，通过以足够的频率完成诊断控制，需要建立与进气量相关的性能状况，在控制内燃机装置
解决方案：当进气体积满足预定条件时，进行各种诊断控制。当整个诊断控制完成时，节气门由普通特性A控制（步骤102），并执行常规点火正时控制（步骤104）。当执行至少一个诊断控制时，通过对加速器操作的灵敏度较低的诊断时间特性B来控制节流阀（步骤112）。在这种情况下，由于低加速器开度区域的发动机负荷k1变得过大，所以点火正时延迟校正被应用于点火正时以抵消其过量Δk1的影响（步骤126至130）。版权所有（C）2007，JPO＆INPIT

19. 发明专利

JP2005114487A Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：JP2005114487A
公开(公告)日：2005-04-28
申请号：JP2003347490
申请日：2003-10-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YOSHIOKA MAMORU , TAKAMA YASUYUKI
IPC分类号： G01N27/409
摘要： PROBLEM TO BE SOLVED: To provide a gas sensor capable of enhancing detection precision easily and certainly. SOLUTION: This gas sensor 1 arranged on an exhaust pipe 20 through which an exhaust gas flows and used for detecting the concentration of the exhaust gas is equipped with a detection element 2 of which the periphery is exposed to the exhaust gas and the inside is exposed to air, a protective cover 6 for covering the detection element 2 to form an exhaust gas atmosphere around the detection element 2, a root side opening parts 61r and 62r formed to the root part of the protective cover 6 to permit the exhaust gas to pass through the cover and a plurality of the leading end side opening parts 61t and 62t formed on the tip part of the protective cover 6 to permit the exhaust gas to pass through the cover. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够容易且肯定地提高检测精度的气体传感器。解决方案：布置在废气流过并用于检测排气浓度的排气管20上的气体传感器1配备有周边暴露于废气的检测元件2，内部暴露于空气中，用于覆盖检测元件2以形成检测元件2周围的排气气氛的保护盖6，形成在保护盖6的根部上的根侧开口部61r和62r，以允许排气气体通过盖和形成在保护盖6的顶端部分上的多个前端侧开口部61t和62t，以允许废气通过盖。版权所有（C）2005，JPO＆NCIPI

20. 发明专利

JP2004116657A Catalyst deterioration suppressing device 审中-公开
公开(公告)号：JP2004116657A
公开(公告)日：2004-04-15
申请号：JP2002281118
申请日：2002-09-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKAMA YASUYUKI , YOSHIOKA MAMORU
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/11 , F01N3/24 , F02D41/12 , F02D45/00 , F16H61/14 , B60K41/00 , B60K41/06
CPC分类号： Y02A50/2322
摘要： PROBLEM TO BE SOLVED: To provide a technology capable of suppressing the deterioration of an exhaust emission control catalyst in a vehicle having an automatic transmission with a lockup clutch. SOLUTION: In the vehicle having the automatic transmission for engaging the lockup clutch when an engine rotational speed exceeds a specified lockup rotational speed and a fuel injection stop means for stopping the operation of a fuel injection valve when an internal combustion engine is in the state of deceleration operation and the engine rotational speed exceeds a specified fuel cutting rotational speed, when the internal combustion engine is in the state of deceleration operation and the temperature of the exhaust emission control catalyst exceeds a specified temperature, a fuel cutting period can be shortened by increasing the lockup rotational speed or the fuel cutting rotational speed by a specified amount. COPYRIGHT: (C)2004,JPO

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